CN215374087U - Inclined insertion type venturi short tube - Google Patents
Inclined insertion type venturi short tube Download PDFInfo
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- CN215374087U CN215374087U CN202121464669.8U CN202121464669U CN215374087U CN 215374087 U CN215374087 U CN 215374087U CN 202121464669 U CN202121464669 U CN 202121464669U CN 215374087 U CN215374087 U CN 215374087U
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Abstract
The utility model relates to the technical field of Venturi tubes, and particularly discloses an obliquely-inserted Venturi tube which comprises an outer Venturi tube and an inner Venturi tube, wherein the outer Venturi tube is sleeved outside the inner Venturi tube, the outer Venturi tube and the inner Venturi tube are coaxially arranged, the inner Venturi tube is positioned at the inlet section of the outer Venturi tube, and a connecting frame is arranged between the outer wall of the inner Venturi tube and the inner wall of the outer Venturi tube. The inclined insertion type venturi short tube provided by the utility model has the advantages that the connection mode among the outer venturi tube, the connecting frame and the inner venturi tube is improved, the inner ring of the connecting frame is detachably connected with the inner venturi tube, and the outer ring of the connecting frame is detachably connected with the outer venturi tube.
Description
Technical Field
The utility model relates to the technical field of Venturi tubes, in particular to an obliquely inserted Venturi short tube.
Background
A venturi tube (venturi throat) can be used as a meter for measuring the flow rate; and also as a highly efficient gas cooling, purification or absorption apparatus. The venturi tube is divided into a built-in venturi tube and a plug-in venturi tube according to the structure. The Venturi tube plays a good role in the measurement of combustion-supporting air, cold air and gas metering (blast furnace gas, coke oven gas and converter gas) of a hot blast stove of a steel plant and the measurement of a low-flow-rate duct meter for large-diameter and secondary air of a boiler of a thermal power plant.
The double-venturi tube flowmeter has the advantages of simple structure, light weight, long service life, low manufacturing cost, small pressure loss, low energy consumption, high sensitivity and the like, is widely applied to pipeline measurement of gas or liquid fluid, and the inner tube and the outer tube of the double venturi tube in the prior art are only fixed by the pressure tapping tube, so that when the internal measurement medium impacts greatly, the inner tube is easy to displace, and the final measurement result is influenced.
Chinese patent No. CN210071011U discloses a plug-in dual venturi flow meter, which adopts a manner of integrating an inner tube mounting bracket to fix an inner venturi tube and an outer venturi tube, so as to prevent the displacement of the inner venturi tube; however, in the technical scheme, the fixing is still mainly carried out by the aid of the pressure tapping pipe, the mounting frame is only installed in a contact manner with the outer pipe and the outer pipe, the stability is poor, and when the impact of an internal measuring medium reaches a certain degree, the inner pipe still moves or deviates, so that the measuring effect is influenced; and is affected by the position of the pressure tapping pipe to cause inconvenient installation and disassembly.
Aiming at the problems, the utility model provides an obliquely inserted venturi short tube.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model aims to solve the problems that the outer Venturi tube and the inner Venturi tube in the prior art are fixed by virtue of the pressure tapping pipe, the stability is poor, when the impact of an internal measuring medium reaches a certain degree, the inner tube still moves or deviates, the measuring effect is influenced, and the installation and the disassembly are inconvenient due to the influence of the position of the pressure tapping pipe.
(II) technical scheme
The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides an insert venturi nozzle stub to one side, includes outer venturi and interior venturi, venturi outside including outer venturi suit, just outer venturi with interior venturi coaxial arrangement, interior venturi is located outer venturi's entry position, interior venturi's outer wall with be provided with the link between outer venturi's the inner wall.
The link includes outer loop, inner ring and connects the outer loop with connecting rod between the inner ring, the inner ring with the connection can be dismantled to interior venturi's outer wall, the outer loop with the connection can be dismantled to outer venturi's inner wall.
In the technical scheme, the inner ring of the connecting frame is detachably connected with the inner Venturi tube, the outer ring of the connecting frame is detachably connected with the outer Venturi tube, the structure not only increases the stability of connection between the connecting frame and the inner Venturi tube and between the connecting frame and the outer Venturi tube, but also facilitates disassembly and assembly, and improves the use convenience.
A negative pressure tapping hole is formed in the side wall of the throat part of the inner Venturi tube, and a pressure tapping pipe is arranged at the negative pressure tapping hole; and the outer Venturi tube is provided with a mounting groove matched with the pressure tapping tube.
In above-mentioned technical scheme, pressure pipe installation is in the mounting groove of outer venturi, and the part hinders when dismantling the installation and dismantles.
Preferably, the inner ring with interior venturi tube contacts, one side of inner ring be equipped with the go-between that interior venturi tube's outer wall laminated mutually, the go-between pass through the screw with interior venturi tube fixed connection.
In the technical scheme, the outer ring, the inner ring, the connecting ring and the connecting rod are integrally formed, and when the connecting frame is installed, the connecting ring is fixed on the outer wall of the inner Venturi tube through screws, so that the connecting frame is connected with the inner Venturi tube.
Preferably, the outer wall of the outer ring is uniformly provided with a plurality of limiting blocks; an annular groove is formed in the upstream end face of the inlet section of the outer Venturi tube, a limiting groove communicated with the annular groove is formed in the side wall of the outer Venturi tube, the limiting groove is matched with the limiting block, and the limiting block is inserted into the limiting groove to enable the connecting frame to be in interference fit with the outer Venturi tube; wherein, the external diameter of outer loop and the internal diameter phase-match of outer venturi entrance, stopper and spacing groove phase-match in addition for the link can be installed in outer venturi's spacing groove department, stopper and spacing groove looks joint.
In above-mentioned technical scheme, with the link installation including venturi's outer wall after, with venturi installation in the link intercommunication in the entrance section of outer venturi for in the pressure pipe of getting on the venturi lies in outer venturi's mounting groove, the stopper joint is at spacing inslot, thereby realizes the initial joint of link, and at this moment, the outer wall of outer loop is leveled mutually with the lateral wall of annular.
Preferably, install in the annular with annular assorted spacing ring, be provided with on the spacing ring with mounting groove assorted gag lever post, the tail end of gag lever post with enclose between the inner of spacing groove close the constitution with pressure pipe assorted through-hole gets.
Preferably, a sealing gasket is arranged on the side wall of the mounting groove; wherein, sealed the leakproofness that can effectively improve gag lever post and mounting groove junction of filling up.
In above-mentioned technical scheme, thereby realize the initial connection back of link, thereby play limiting displacement with the spacing ring joint in the annular to stopper and link, simultaneously for the gag lever post joint is in the mounting groove, to getting between the tail end of gag lever post and the inner of mounting groove and pressing the pipe and carrying out the joint.
Preferably, the outer wall of spacing ring evenly is equipped with a plurality of counter bore along its circumference direction, be equipped with in the counter bore with the coaxial screw hole of counter bore, the screw hole run through to the lateral wall of annular with the lateral wall of stopper, threaded hole is downthehole to be equipped with corresponding set screw.
In the technical scheme, after the spacing ring installation was accomplished, install set screw in the threaded hole, and make fixed screwhead be located the counter bore, avoid exposing outside influence use, the screw is connected the lateral wall of spacing ring and annular, and be connected the spacing ring with the stopper, thereby it is connected with outer venturi to step up the link, whole installation is simple and convenient, can effectively avoid when using in venturi take place the problem of displacement and skew, not only increased the link respectively with interior venturi, the connection compactness between the outer venturi, and dismantle the installation simple and convenient.
Preferably, the outer venturi tube and the inner venturi tube are aligned at their upstream ends, and the downstream end of the inner venturi tube is located at the forward end of the throat section of the outer venturi tube and is not in contact with the outer venturi tube.
(III) advantageous effects
1. The inclined insertion type Venturi short tube provided by the utility model has the advantages that the connection mode among the outer Venturi tube, the connecting frame and the inner Venturi tube is improved, the inner ring of the connecting frame is detachably connected with the inner Venturi tube, and the outer ring of the connecting frame is detachably connected with the outer Venturi tube.
2. According to the obliquely inserted Venturi short tube, after the connecting frame is installed on the outer wall of the inner Venturi tube, the connecting frame is communicated with the inner Venturi tube and installed in the inlet section of the outer Venturi tube, so that the pressure taking tube on the inner Venturi tube is located in the installation groove of the outer Venturi tube, and the limiting block is clamped in the limiting groove, so that primary connection of the connecting frame is achieved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic overall exploded view of the present invention.
Wherein: the sealing device comprises an outer Venturi tube 1, an installation groove 11, a ring groove 12, a limiting groove 13, a sealing gasket 14, an inner Venturi tube 2, a pressure sampling tube 20, a through hole 200, a connecting frame 3, an outer ring 31, an inner ring 32, a connecting rod 33, a connecting ring 34, a screw 35, a limiting block 36, a limiting ring 4, a limiting rod 41, a counter bore 42, a threaded hole 43 and a fixing screw 44.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.
Referring to fig. 1-2, an oblique insertion type venturi nozzle stub comprises an outer venturi tube 1 and an inner venturi tube 2, the outer venturi tube 1 is sleeved outside the inner venturi tube 2, the outer venturi tube 1 and the inner venturi tube 2 are coaxially arranged, the inner venturi tube 2 is located at the inlet section of the outer venturi tube 1, and a connecting frame 3 is arranged between the outer wall of the inner venturi tube 2 and the inner wall of the outer venturi tube 1.
The link 3 includes outer loop 31, inner ring 32 and connects outer loop 31 with connecting rod 33 between the inner ring 32, inner ring 32 with the connection can be dismantled to the outer wall of interior venturi 2, outer loop 31 with the connection can be dismantled to the inner wall of outer venturi 1.
In the above technical scheme, the inner ring 32 of link 3 can be dismantled with interior venturi 2 and be connected, and the outer loop 31 of link 3 can be dismantled with outer venturi 1 and be connected, and this structure has not only increased the stability of being connected between link 3 and interior venturi 2, the outer venturi 1, and the convenient dismantlement installation has improved the convenience of use.
A negative pressure tapping hole is formed in the side wall of the throat part of the inner Venturi tube 2, and a pressure tapping pipe 20 is arranged at the negative pressure tapping hole; the outer Venturi tube 1 is provided with a mounting groove 11 matched with the pressure sampling tube 20.
In the above technical solution, the pressure tapping pipe 20 is installed in the installation groove 11 of the outer venturi tube 1, and is partially prevented from being disassembled when being disassembled and assembled.
Referring to fig. 2, the inner ring 32 is in contact with the inner venturi tube 2, a connection ring 34 attached to the outer wall of the inner venturi tube 2 is disposed on one side of the inner ring 32, and the connection ring 34 is fixedly connected to the inner venturi tube 2 by a screw 35.
In the above technical solution, the outer ring 31, the inner ring 32, the connection ring 34 and the connection rod 33 are integrally formed, and when being installed, the connection ring 34 is fixed on the outer wall of the inner venturi tube 2 through the screw 35 so that the connection frame 3 is connected with the inner venturi tube 2.
A plurality of limiting blocks 36 are uniformly arranged on the outer wall of the outer ring 31; an annular groove 12 is formed in the upstream end face of the inlet section of the outer Venturi tube 1, a limiting groove 13 communicated with the annular groove 12 is formed in the side wall of the outer Venturi tube 1, the limiting groove 13 is matched with the limiting block 36, and the limiting block 36 is inserted into the limiting groove 13 to enable the connecting frame 3 to be in interference fit with the outer Venturi tube 1; wherein, the external diameter of outer loop 31 and the internal diameter phase-match of outer venturi 1 entrance, stopper 36 and spacing groove 13 phase-match in addition for link 3 can be installed in outer venturi 1's spacing groove 13 department, and stopper 36 and spacing groove 13 joint mutually.
In above-mentioned technical scheme, behind venturi 2's outer wall including installing link 3, with venturi 2 installation in the link 3 intercommunication in the entrance section of outer venturi 1 for intraductal pressure pipe 20 of getting of interior is located outer venturi 1's mounting groove 11, and stopper 36 joint is in spacing groove 13, thereby realizes link 3's initial joint, and at this moment, the outer wall of outer loop 31 is level and level mutually with the lateral wall of annular 12.
Install in the annular 12 with annular 12 assorted spacing ring 4, be provided with on the spacing ring 4 with 11 assorted gag lever posts 41 of mounting groove, the tail end of gag lever post 41 with enclose between the inner of spacing groove 13 close the constitution with it presses pipe 20 assorted through-hole 200 to get.
A sealing gasket 14 is arranged on the side wall of the mounting groove 11; wherein, the sealing gasket 14 can effectively improve the sealing performance of the joint of the limiting rod 41 and the mounting groove 11.
In above-mentioned technical scheme, thereby realize the initial connection back of link 3, thereby play limiting displacement with spacing ring 4 joint in annular 12 to stopper 36 and link 3, simultaneously, make the joint of gag lever post 41 in mounting groove 11, carry out the joint to pressure pipe 20 between the tail end of gag lever post 41 and the inner of mounting groove 11.
The outer wall of spacing ring 4 evenly is equipped with a plurality of counter bore 42 along its circumferential direction, be equipped with in the counter bore 42 with the coaxial screw hole 43 of counter bore 42, screw hole 43 run through to the lateral wall of annular 12 with the lateral wall of stopper 36, be equipped with corresponding set screw 44 in the screw hole 43.
In the above technical scheme, after the installation of spacing ring 4 is accomplished, install set screw 44 in screw hole 43, and make set screw 44 head be located counter bore 42, avoid exposing outside the influence and use, screw 35 is connected spacing ring 4 with the lateral wall of annular 12, and be connected spacing ring 4 with stopper 36, thereby it is connected with outer venturi 1 to step up the link 3, whole installation is simple and convenient, can effectively avoid when using interior venturi 2 to take place the problem of displacement and skew, link 3 respectively with interior venturi 2 has not only been increased, the connection compactness between outer venturi 1, and dismantle the installation simple and convenient.
The upstream ends of the outer Venturi tube 1 and the inner Venturi tube 2 are aligned, and the downstream end of the inner Venturi tube 2 is positioned at the front end of the throat part of the outer Venturi tube and is not in contact with the outer Venturi tube 1.
According to the utility model, the connection mode between the outer Venturi tube 1 and the connecting frame 3 and the inner Venturi tube 2 is improved, the inner ring 32 of the connecting frame 3 is detachably connected with the inner Venturi tube 2, and the outer ring 31 of the connecting frame 3 is detachably connected with the outer Venturi tube 1, so that the structure not only increases the connection stability between the connecting frame 3 and the inner Venturi tube 2 as well as the outer Venturi tube 1, but also can effectively avoid the problems of displacement and offset of the inner Venturi tube 2 in use, is convenient to detach and install, and improves the use convenience.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention.
Claims (7)
1. The utility model provides a venturi nozzle stub of formula of inserting to one side, includes outer venturi (1) and interior venturi (2), venturi (2) are outside including outer venturi (1) suit, just outer venturi (1) with interior venturi (2) coaxial arrangement, its characterized in that: the inner Venturi tube (2) is positioned at the inlet section of the outer Venturi tube (1), and a connecting frame (3) is arranged between the outer wall of the inner Venturi tube (2) and the inner wall of the outer Venturi tube (1);
the connecting frame (3) comprises an outer ring (31), an inner ring (32) and a connecting rod (33) connected between the outer ring (31) and the inner ring (32), the inner ring (32) is detachably connected with the outer wall of the inner Venturi tube (2), and the outer ring (31) is detachably connected with the inner wall of the outer Venturi tube (1);
a negative pressure tapping hole is formed in the side wall of the throat part of the inner Venturi tube (2), and a pressure tapping pipe (20) is arranged at the negative pressure tapping hole; the outer Venturi tube (1) is provided with a mounting groove (11) matched with the pressure tapping pipe (20).
2. The obliquely inserted venturi nozzle stub of claim 1, wherein: inner ring (32) with interior venturi (2) contact, one side of inner ring (32) be equipped with go up ring (34) that the outer wall of interior venturi (2) laminated mutually, go up ring (34) pass through screw (35) with interior venturi (2) fixed connection.
3. The obliquely inserted venturi nozzle stub of claim 1, wherein: a plurality of limiting blocks (36) are uniformly arranged on the outer wall of the outer ring (31); outer venturi (1)'s entry upper reaches terminal surface is equipped with annular (12), outer venturi (1) the lateral wall be equipped with spacing groove (13) that annular (12) are linked together, spacing groove (13) with stopper (36) phase-match, stopper (36) are pegged graft and are made in spacing groove (13) link (3) with outer venturi (1) interference fit.
4. An obliquely inserted venturi nozzle stub according to claim 3 wherein: install in annular (12) with annular (12) assorted gag ring (4), be provided with on gag ring (4) with mounting groove (11) assorted gag lever post (41), the tail end of gag lever post (41) with enclose between the inner of gag lever post (13) close constitute with pressure pipe (20) assorted through-hole (200) are pressed to the pressure.
5. The obliquely inserted venturi spoolie as defined in claim 4, wherein: the outer wall of spacing ring (4) evenly is equipped with a plurality of counter bore (42) along its circumferential direction, be equipped with in counter bore (42) with the coaxial screw hole (43) of counter bore (42), screw hole (43) run through to the lateral wall of annular (12) with the lateral wall of stopper (36), be equipped with correspondingly set screw (44) in screw hole (43).
6. The obliquely inserted venturi nozzle stub of claim 1, wherein: the outer Venturi tube (1) is aligned with the upstream end of the inner Venturi tube (2), and the downstream end of the inner Venturi tube (2) is located at the front end of the throat part of the outer Venturi tube and is not in contact with the outer Venturi tube (1).
7. The obliquely inserted venturi nozzle stub of claim 1, wherein: and a sealing gasket (14) is arranged on the side wall of the mounting groove (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121464669.8U CN215374087U (en) | 2021-06-30 | 2021-06-30 | Inclined insertion type venturi short tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121464669.8U CN215374087U (en) | 2021-06-30 | 2021-06-30 | Inclined insertion type venturi short tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215374087U true CN215374087U (en) | 2021-12-31 |
Family
ID=79606132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121464669.8U Active CN215374087U (en) | 2021-06-30 | 2021-06-30 | Inclined insertion type venturi short tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215374087U (en) |
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2021
- 2021-06-30 CN CN202121464669.8U patent/CN215374087U/en active Active
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