CN218381132U - Adjustable orifice plate flow measuring device - Google Patents
Adjustable orifice plate flow measuring device Download PDFInfo
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- CN218381132U CN218381132U CN202221490584.1U CN202221490584U CN218381132U CN 218381132 U CN218381132 U CN 218381132U CN 202221490584 U CN202221490584 U CN 202221490584U CN 218381132 U CN218381132 U CN 218381132U
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- orifice plate
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Abstract
The utility model provides an adjustable orifice plate flow measuring device, including measuring pipeline and differential pressure transmitter, be equipped with the orifice plate subassembly in the measuring pipeline, orifice plate subassembly both sides are equipped with the drawing pipe, the measuring pipeline both ends are connected with pipeline through sealed connection structure, sealed connection structure includes first flange and second flange, measuring pipeline tip inner wall is equipped with sealed spread groove, the tip of second flange is equipped with sealing connection portion, orifice plate subassembly includes the orifice plate and cup joints the connecting portion in orifice plate week side, the orifice plate sets up rotatable connection structure with connecting portion, measuring pipeline includes first body and second body, orifice plate subassembly sets up between first body and second body, connecting portion set up between first body and second body, connecting portion outer wall fixation has cyclic annular fixed part, first body, be provided with the mounting flange piece that corresponds with the fixed part on the second body, this scheme has made things convenient for measuring device's installation work has improved its convenience of use simultaneously.
Description
Technical Field
The utility model relates to a gas flow measuring equipment field specifically belongs to an adjustable orifice plate flow measuring device.
Background
The orifice plate flow measuring device can measure the flow of various fluids in a pipeline and is widely applied to the industrial departments of petroleum, chemical industry, metallurgy, light industry, coal mine and the like.
The existing orifice plate flow measuring device is directly fixed through a flange plate when being installed with a conveying pipeline, so that the problems of inconvenience in installation and positioning and poor air tightness of a connecting position exist in the installation process, the interference on the flow of fluid near the measuring pipeline is easily caused, and the reliability of measured data is influenced; the existing orifice plate flow measuring device also has certain inconvenience in use, the orifice plate in the existing measuring device is more direct to be fixed with a measuring channel, if the orifice plate is worn in use, the orifice plate is not convenient to be replaced independently, the measuring principle of the orifice plate flow measuring device is that differential pressure is produced through the orifice plate, and the orifice plate still interferes with fluid in a pipeline when the measuring device is idle, so that the pipeline near the measuring device is pressed greatly.
SUMMERY OF THE UTILITY MODEL
The utility model provides an adjustable orifice plate flow measuring device for solve the inconvenient problem of installation that prior art orifice plate flow measuring device exists, improve the convenience in the orifice plate flow measuring device use simultaneously.
The technical scheme of the utility model is realized like this: the adjustable orifice plate flow measuring device comprises a measuring pipeline and a differential pressure transmitter, wherein an orifice plate assembly is arranged in the measuring pipeline, pressure guiding pipes are arranged on two sides of the orifice plate assembly and are connected with the differential pressure transmitter, two ends of the measuring pipeline are connected with a conveying pipeline through a sealing connection structure, the sealing connection structure comprises a first flange fixed at two ends of the measuring pipeline and a second flange fixed at the end part of the conveying pipeline, the inner wall of the end part of the measuring pipeline is sunken along the thickness direction to form an annular sealing connection groove, and the end part of the second flange extends along the length direction to form a sealing connection part corresponding to the sealing connection groove;
the orifice plate assembly comprises a circular plate-shaped orifice plate and a connecting part sleeved on the periphery of the orifice plate, the orifice plate and the connecting part are provided with a rotatable connecting structure, the measuring pipeline comprises a first pipe body and a second pipe body, the orifice plate assembly is arranged between the first pipe body and the second pipe body, the connecting part is arranged between the first pipe body and the second pipe body, the outer wall of the connecting part is fixed with an annular fixing part, fixing flange pieces corresponding to the fixing part are arranged on the first pipe body and the second pipe body, and the fixing part and the fixing flange pieces are fixed through screws.
Compare in prior art this scheme's beneficial effect does:
(1) The installation work of the orifice plate flow measuring device relative to the conveying pipeline is facilitated, the traditional flow measuring device is directly fixed with the conveying pipeline through the flange, the size of the measuring device is large, the problem of inconvenience in positioning exists in the installation process, when the measuring pipeline is installed in the scheme, the first flange and the second flange can be conveniently located quickly through the sealing connection portion and the sealing connection groove, and the installation operation of the measuring device is greatly facilitated.
(2) The sealing effect of the orifice plate flow measuring device relative to the installation of the conveying pipeline is improved, the accuracy of the measuring result is improved, the air seal for directly fixing the flange end joint on the measuring pipeline and the conveying pipeline and connecting the measuring device and the conveying pipeline is difficult to guarantee, the sealing effect when the measuring pipeline and the conveying pipeline are connected is enhanced by arranging the sealing connection structure, and the deviation of measured data caused by the influence of the sealing performance of the joint between the measuring device and the conveying pipeline on the air flow near the measuring device is avoided.
(3) The convenient orifice plate to wearing and tearing is changed, and avoid influencing fluidic normal flow at the orifice plate angle when flow measuring device is idle, when the orifice plate receives wearing and tearing needs to be changed, need not to dismantle whole measuring device, only need with the relative mounting flange piece split of fixed part, take off the orifice plate subassembly again can, orifice plate and connecting portion rotatable coupling, can adjust the angle that sets up of orifice plate in measuring device when measuring device is idle, avoid influencing the fluid normal flow at idle in-process, reduce the pressure that produces pipeline.
On the basis of the scheme, the improved structure is further characterized in that a rotating shaft is fixed on the outer wall of the pore plate, the rotating shaft penetrates through the connecting part and the fixing part, and an adjusting turntable is fixed at the outer end part of the rotating shaft.
Compare in prior art this scheme's beneficial effect does: the angle of convenient adjustment orifice plate rotates according to measuring device user state and adjusts the carousel, adjusts and rotates and drive the orifice plate upset through the pivot, adjusts the angle of orifice plate, and convenient operation is swift.
On the basis of the scheme, the thickness of the connecting part in the axial direction is smaller than that of the pore plate and the fixing part, and the side wall of the pore plate is attached to the inner walls of the first pipe body and the second pipe body.
On the basis of the scheme, the improved structure is further characterized in that the two pressure leading pipes are respectively connected with the first pipe body and the second pipe body.
Compare in prior art this scheme's beneficial effect does: the sealing strength of the orifice plate assembly connected with the first pipe body and the second pipe body is improved, the orifice plate is simultaneously attached to the inner walls of the first pipe body and the second pipe body, the fixing portion is simultaneously attached to the outer walls of the first pipe body and the second pipe body, and the air tightness of the orifice plate assembly connected with the first pipe body and the second pipe body is effectively enhanced.
On the basis of the scheme, the flange structure is further improved in the following manner, wherein an annular convex limiting part is arranged on the side wall of the first flange, an annular concave limiting groove is arranged on the side wall of the second flange corresponding to the limiting part, and the first flange and the second flange are fixed through screws.
Compare in prior art this scheme's beneficial effect does: the convenience of connection between the measuring pipeline and the conveying pipeline is further facilitated, and the sealing effect between the first flange and the second flange is also enhanced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.
FIG. 1 is a schematic structural view of a flow measuring device in a use state according to the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
fig. 3 is a schematic structural view of the middle flow rate measuring device of the present invention in an idle state;
wherein: 1-measuring pipeline, 11-first pipe body, 12-second pipe body, 13-pressure guiding pipe, 14-differential pressure transmitter, 15-fixed flange piece, 2-first flange, 21-sealed connecting groove, 22-second flange, 23-sealed connecting part, 24-conveying pipeline, 3-pore plate, 31-connecting part, 32-fixed part, 33-rotating shaft and 34-adjusting turntable.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicating the directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The utility model discloses adjustable orifice plate flow measuring device's concrete embodiment, as shown in fig. 1-3:
adjustable orifice plate flow measuring device, including measuring pipe 1 and differential pressure transmitter 14, be equipped with orifice plate 3 subassembly in the measuring pipe 1, be equipped with pressure pipe 13 on the measuring pipe 1 of orifice plate 3 subassembly both sides, two pressure pipe 13 are connected with differential pressure transmitter 14, measuring pipe 1 both ends are connected with pipeline 24 through sealing connection structure, sealing connection structure is including fixing first flange 2 at measuring pipe 1 both ends and fixing the second flange 22 at pipeline 24 tip, first flange 2 is fixed with the laminating of second flange 22, measuring pipe 1 tip inner wall is sunken to form annular sealed spread groove 21 along its thickness direction, the tip of second flange 22 extends along its length direction and forms the sealing connection portion 23 that corresponds with sealed spread groove 21, be equipped with the bellied spacing portion of annular on the 2 lateral walls of first flange, the corresponding spacing portion of second flange 22 lateral wall is equipped with the sunken spacing groove of annular, first flange 2 passes through the fix with screw with second flange 22.
The orifice plate 3 subassembly includes circular platelike orifice plate 3 and cup joints the connecting portion 31 of orifice plate 3 week side, orifice plate 3 sets up rotatable connection structure with connecting portion 31, be fixed with pivot 33 on the orifice plate 3 outer wall, set up the through-hole that pivot 33 corresponds on connecting portion 31 and the fixed part 32, pivot 33 passes connecting portion 31 and fixed part 32, the outer tip of pivot 33 is fixed with regulation carousel 34 in the fixed part 32 outside, for the regulation of convenience orifice plate 3, can set up the rotation scale on regulation carousel 34, the control range of regulation carousel 34 is 90, two kinds of states of orifice plate 3 in measuring pipeline 1 are the axis coincidence of orifice plate 3 and measuring pipeline 1 respectively, the axis of orifice plate 3 and measuring pipeline 1's axis coincidence, for further improving the sealing strength of being connected between orifice plate 3 subassembly and measuring pipeline 1, connecting portion 31 is less than the thickness of orifice plate 3 and fixed part 32 in its axial, the lateral wall of orifice plate 3 laminates with the inner wall of first body 11, second body 12 simultaneously.
The measuring pipeline 1 comprises a first pipe body 11 and a second pipe body 12, a pore plate 3 assembly is arranged between the first pipe body 11 and the second pipe body 12, a connecting portion 31 is arranged between the first pipe body 11 and the second pipe body 12, an annular fixing portion 32 is fixed on the outer wall of the connecting portion 31, a fixing flange piece 15 corresponding to the fixing portion 32 is arranged on the first pipe body 11 and the second pipe body 12, the fixing portion 32 and the fixing flange piece 15 are fixed through screws, and two pressure leading pipes 13 are respectively connected with the first pipe body 11 and the second pipe body 12.
When the measuring device is installed, the sealing connection portion 23 is kept to correspond to the sealing connection groove 21, the limiting portion is attached to the limiting groove, the first flange 2 and the second flange 22 are fixed, the pressure leading pipe 13 is installed relative to the measuring pipeline 1, the pressure leading pipe 13 is connected with the differential pressure transmitter 14, in the measuring process, the axis of the adjusting orifice plate 3 to the orifice plate 3 coincides with the axis of the measuring pipeline 1, when the measuring device is idle, the axis of the adjusting rotary disc 34 to the orifice plate 3 is perpendicular to the axis of the measuring pipeline 1, influence on normal flow of fluid is avoided, after long-term use, when the orifice plate 3 needs to be replaced, only the fixing portion 32 needs to be detached relative to the fixing flange plate 15, the orifice plate 3 assembly is taken down, and the standard orifice plate 3 can be replaced.
The above description is only for the preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The adjustable orifice plate flow measuring device is characterized in that two ends of the measuring pipeline are connected with a conveying pipeline through a sealing connection structure, the sealing connection structure comprises a first flange fixed at two ends of the measuring pipeline and a second flange fixed at the end part of the conveying pipeline, the inner wall of the end part of the measuring pipeline is sunken along the thickness direction of the inner wall to form an annular sealing connection groove, and the end part of the second flange extends along the length direction of the inner wall to form a sealing connection part corresponding to the sealing connection groove;
the orifice plate assembly comprises a circular plate-shaped orifice plate and a connecting part sleeved on the periphery of the orifice plate, the orifice plate and the connecting part are provided with a rotatable connecting structure, the measuring pipeline comprises a first pipe body and a second pipe body, the orifice plate assembly is arranged between the first pipe body and the second pipe body, the connecting part is arranged between the first pipe body and the second pipe body, the outer wall of the connecting part is fixed with an annular fixing part, fixing flange pieces corresponding to the fixing part are arranged on the first pipe body and the second pipe body, and the fixing part and the fixing flange pieces are fixed through screws.
2. The adjustable orifice flow measuring device of claim 1, wherein a rotating shaft is fixed to an outer wall of the orifice plate, the rotating shaft passes through the connecting portion and the fixing portion, and an adjusting dial is fixed to an outer end portion of the rotating shaft.
3. The adjustable orifice flow measuring device of claim 2, wherein the connecting portion has a thickness in the axial direction that is less than the thickness of the orifice plate and the securing portion, and wherein the orifice plate sidewall simultaneously abuts the inner walls of the first and second tubular bodies.
4. The adjustable orifice flow measuring device of claim 3, wherein two pressure taps are connected to the first and second tubular bodies, respectively.
5. The adjustable orifice plate flow measuring device of claim 4, wherein an annular raised limiting portion is arranged on the side wall of the first flange, an annular recessed limiting groove is arranged on the side wall of the second flange corresponding to the limiting portion, and the first flange and the second flange are fixed through screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221490584.1U CN218381132U (en) | 2022-06-15 | 2022-06-15 | Adjustable orifice plate flow measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221490584.1U CN218381132U (en) | 2022-06-15 | 2022-06-15 | Adjustable orifice plate flow measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218381132U true CN218381132U (en) | 2023-01-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221490584.1U Active CN218381132U (en) | 2022-06-15 | 2022-06-15 | Adjustable orifice plate flow measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218381132U (en) |
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2022
- 2022-06-15 CN CN202221490584.1U patent/CN218381132U/en active Active
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