CN208459199U - A kind of wear-resisting measuring device with a variety of choke preventing functions - Google Patents
A kind of wear-resisting measuring device with a variety of choke preventing functions Download PDFInfo
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- CN208459199U CN208459199U CN201820995790.5U CN201820995790U CN208459199U CN 208459199 U CN208459199 U CN 208459199U CN 201820995790 U CN201820995790 U CN 201820995790U CN 208459199 U CN208459199 U CN 208459199U
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Abstract
The utility model relates to a kind of wear-resisting measuring devices with a variety of choke preventing functions.It is rigidly larger mainly for impurity, impurity content is very high, the very high measuring point of flow velocity, using effectively clogging-preventing measures and targetedly wear-resisting measure such as rotation scale removal, flow perturbation, gravitational settling, reflux depositing dusts.The technical solution of the utility model includes the static pressure wear-resistant pipe and stagnation pressure wear-resistant pipe connected by connecting flange, the stagnation pressure wear-resistant pipe lower end offers stagnation pressure pressure tappings, two pipe upper ends are provided with sealing support blanking cover, sealing support blanking cover intermediate thread has fixed support shaft, fixed support shaft upper end is provided with limit pull ring, lower end is connected with rotary shaft, the external screw thread lower end of fixed support shaft, which is provided with, is slidingly sealed set, it is provided with helical blade on the outer wall of rotary shaft, stagnation pressure pressure nozzle and static pressure pressure nozzle are respectively arranged on two pipes；It is respectively arranged with coupled logical secondary settlement inclined tube on two pipe upper end outer walls, is provided with pressure nozzle on secondary settlement inclined tube.
Description
Technical field
The utility model relates to a kind of wear-resisting measuring devices with a variety of choke preventing functions.
Background technique
Contain a large amount of rigid impurity in the measuring points measuring media such as pulverized coal feed pipe, the outlet of lime cellar in thermal power plant,
The impurity easily causes biggish impact grinding to undermine measuring device to wash away mill under the carrying of high-speed flow in normal course of operation
Damage, and serious blocking and abrasion easily are caused to measuring device inside since impurity content is very high, ultimately cause the accurate of measurement
It spends and linearly is difficult to meet measurement request.At present for the above measuring point most measuring devices be all made of swing chain carry out it is anti-blocking and
Measuring device is protected using 75 porcelain protection pipes or 90 porcelain protection pipes.But in actual moving process, chain angle of oscillation is swung
Spend very little and easily it is stuck, therefore can not carry out effectively it is anti-blocking.Since 75 porcelain protection pipes or 90 porcelain protection pipe Mohs' hardness are lower, and
Impact wear caused by the rigid impurity of high speed can not be effectively solved, therefore just will appear worn out or fracture in a short time in actual motion
The problems such as.
Utility model content
In view of this, the present invention provides a kind of wear-resisting measuring device with a variety of choke preventing functions, mainly for
Impurity is rigidly larger, impurity content is very high, the very high measuring point of flow velocity, using rotation scale removal, flow perturbation, gravitational settling, reflux
The effective clogging-preventing measures such as depositing dust and targetedly wear-resisting measure.
In order to solve the problems existing in the prior art, the technical solution of the utility model is: one kind having a variety of choke preventing functions
Wear-resisting measuring device, it is characterised in that: including the parallel static pressure wear-resistant pipe and stagnation pressure wear-resistant pipe being vertically arranged, described is quiet
Pressure wear-resistant pipe and stagnation pressure wear-resistant pipe are connected together by connecting flange, and the stagnation pressure wear-resistant pipe lower end offers stagnation pressure pressure
Mouthful, pressure tappings face direction of flow is arranged, and the upper end of static pressure wear-resistant pipe and stagnation pressure wear-resistant pipe is provided with sealing support blanking cover, close
Envelope support blanking cover intermediate thread has fixed support shaft, and fixed support shaft upper end is provided with rotatable limit pull ring, fixed support
The external screw thread lower end of axis, which is provided with, is slidingly sealed set, is slidingly sealed the inner wall mistake of set outer wall and static pressure wear-resistant pipe and stagnation pressure wear-resistant pipe
It is full of cooperation, and is limited by the bottom surface of the limited step of static pressure wear-resistant pipe and the wear-resisting inside pipe wall of stagnation pressure and sealing support blanking cover inner hole
The lower end of its position, fixed support shaft is connected with rotary shaft, and helical blade, two rotary shafts point are provided on the outer wall of rotary shaft
Static pressure wear-resistant pipe and stagnation pressure wear-resistant pipe are not stretched out in, and bottom is respectively arranged with flywheel blade；
Stagnation pressure pressure nozzle and static pressure pressure nozzle are respectively arranged on the static pressure wear-resistant pipe and stagnation pressure wear-resistant pipe；
Coupled logical secondary settlement is respectively arranged on the static pressure wear-resistant pipe and stagnation pressure wear-resistant pipe upper end outer wall
Inclined tube is provided with pressure nozzle on secondary settlement inclined tube, and the exit of secondary settlement inclined tube is provided with second dismountable blanking cover.
Silicon-carbon protection pipe is arranged on the stagnation pressure wear-resistant pipe of the connecting flange lower end.
The fixation support shaft is connect with rotary shaft by T-shape rotary joint.
The static pressure wear-resistant pipe is identical with the caliber of stagnation pressure wear-resistant pipe.
Compared with prior art, as follows the advantages of the utility model:
1, the utility model has the function of, by measuring wind speed, the straight line kinetic energy of flow media wind to be turned online from deashing
It is changed to the rotation function of rotary shaft, helical blade rotation cleaning is driven to flow into the dust of stagnation pressure wear-resistant pipe and static pressure wear-resistant pipe and miscellaneous
Matter prevents blockage problem in pipe.Helical blade can clean up the dust measured on inside pipe wall when rotating, in measurement process
In, rotary shaft ceaselessly rotates also the accumulation that can be effectively controlled dust impurity in measurement pipe；
2, the utility model is by rotary stopper pull ring, by the male thread portion and sealing support blanking cover in fixed support shaft
On internal screw thread rotating separation after, can direct pull limit pull ring, will entirely rotate shaft portion pulling, using helical blade and fly
Stagnation pressure wear-resistant pipe and the wear-resisting inside pipe wall of static pressure are cleared up in impeller blade outer profile position, can clear up and dredge manually at any time stagnation pressure wear-resistant pipe
With the wear-resisting inside pipe wall of static pressure, shutdown maintenance and disassembly cleaning bring workload are eliminated；
3, the internal screw thread on the male thread portion and sealing support blanking cover in the fixed support shaft of the utility model both can guarantee
The sealing of measuring device can but also can provide fixed support tie point not only for rotary shaft, and being slidingly sealed set ensure that in opening drawing
After limiting pull ring out, fixed support shaft during moving up and down in stagnation pressure wear-resistant pipe and static pressure wear-resistant pipe flow media it is close
Envelope；
4, the utility model fluoran stream surface be pre-large post-small abrasion-proof structure, before face direction of flow stagnation pressure wear-resistant pipe on
It is cased with the silicon-carbon protection pipe of customization, the protection that silicon-carbon protection pipe is made into using the carbon-based composite abrasion resistance material of Mohs' hardness >=9.0
Pipe carries out wear-resistant protection；The protection pipe can effectively reduce impact wear amount and erosive wear amount, and pass through lot of experimental data
Improve the thickness of protection pipe.Therefore high degree is improved impurity is rigidly larger, impurity content is very high, the very high measuring point of flow velocity
Service life, not only protected stagnation pressure wear-resistant pipe but also protected the static pressure wear-resistant pipe of behind.
5, the length of the fixed support shaft of the utility model controls the shift motion for limiting pull ring, while herein without spiral
Blade passes through the more stable transition of air quantity herein, and secondary settlement inclined tube inner cavity is larger (flow velocity is low), therefore passes through weight
Power settlement measurement can ensure that impurity can not rise to inside pressure nozzle, and pressure pipe is discharged in impurity by secondary settlement inclined tube.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the side view of Fig. 1；
Fig. 3 is the upper end partial sectional view of Fig. 1；
In figure: 1-1, the first detachable blanking cover；1-2, the second detachable blanking cover；2, stagnation pressure pressure nozzle；3, sealing support is stifled
Lid；4, it is slidingly sealed set；5, static pressure wear-resistant pipe；6, stagnation pressure wear-resistant pipe；7, bolt group；8, connecting flange；9, mounting base；10, silicon
Carbon protection pipe；11, rotary shaft；12, flywheel blade；13, pull ring is limited；14, fixed support shaft；15, helical blade；16, secondary
Settle inclined tube；17, stagnation pressure pressure tappings；18, static pressure pressure nozzle；19 pressure nozzles.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
The wear-resisting measuring device (referring to figures 1-3) with a variety of choke preventing functions that the present embodiment provides a kind of, including it is equal
The identical static pressure wear-resistant pipe 5 of caliber and stagnation pressure wear-resistant pipe 6 that row is vertically arranged, the static pressure wear-resistant pipe 5 and stagnation pressure wear-resistant pipe 6
It is connected together by connecting flange 8, is mounted in mounting base 9 by bolt group 7, through mounting base 9 on measurement pipeline
Insertion depth adjusts its insertion depth, and 6 lower end of stagnation pressure wear-resistant pipe offers stagnation pressure pressure tappings 17, stagnation pressure pressure tappings are just
Direction of flow is arranged, silicon-carbon protection pipe 10 is arranged on the stagnation pressure wear-resistant pipe 6 of 8 lower end of connecting flange, before foring
Small protection structure after big, windward side is resisted the abrasion of air quantity bring by the silicon-carbon protection pipe being relatively large in diameter, and diameter is smaller
For static pressure wear-resistant pipe behind silicon-carbon protection pipe, the abrasion for the air quantity being subject to is smaller.Static pressure wear-resistant pipe 5 and stagnation pressure wear-resistant pipe 6 it is upper
End is provided with sealing support blanking cover 3, is connect respectively by internal and external threads with stagnation pressure wear-resistant pipe and static pressure wear-resistant pipe, detachable side
Just stagnation pressure wear-resistant pipe and the cleaning of static pressure wear-resistant pipe internal maintenance.It is equipped with internal thread hole among sealing support blanking cover 3, is supported with fixed
The external screw thread of axis 14 is cooperatively connected, and plays the role of fixing seal, limit pull ring 13 is welded in fixed support shaft 14, passes through rotation
Fixed support shaft can be spun out by turning limit pull ring.The external screw thread lower end of fixed support shaft 14, which is provided with, is slidingly sealed set 4,
It is slidingly sealed set 4 and passes through the limited step and sealing support blanking cover 3 of outer circle and the inner wall of static pressure wear-resistant pipe 5 and stagnation pressure wear-resistant pipe 6
The bottom surface of inner hole limits its position, prevents it from moving up and down, and the inner hole and fixed support shaft for being slidingly sealed set are interference fitted, and protects
It is air tight to demonstrate,prove contact portion when fixed support shaft slides up and down.The lower end of fixed support shaft and rotary shaft pass through T-type rotary joint
Connection, connecting portion can rotate freely.Helical blade 15 is provided on the outer wall of rotary shaft 11, and then rotary shaft is revolved together
Turn.Two rotary shafts 11 stretch out in static pressure wear-resistant pipe 5 and stagnation pressure wear-resistant pipe 6 respectively, and bottom is respectively arranged with flywheel blade 12,
Measure pipeline in by direction of flow it is distinguished and admirable after, flywheel blade can be rotated by winds, flywheel blade drive rotary shaft, rotation
Axis drives helical blade ceaselessly to rotate together in total, static tube.
Stagnation pressure pressure nozzle 2 and static pressure pressure nozzle 18 are respectively arranged on the static pressure wear-resistant pipe 5 and stagnation pressure wear-resistant pipe 6；
It is secondary heavy to what is be connected to it to be respectively arranged on the 6 upper end outer wall of static pressure wear-resistant pipe 5 and stagnation pressure wear-resistant pipe
Drop angle pipe 16 settles again for dust subsidiary in the wind medium by measurement, pressure nozzle is provided on secondary settlement inclined tube 16
19, for connecting acquisition and conducting pressure signal with other amount auxiliary systems.The exit of secondary settlement inclined tube 16 is provided with
Two dismountable blanking cover 1-2, the dust stratification being used to open in maintenance and cleaning secondary settlement pipe.
The utility model, which has, blows flywheel blade rotation by measuring medium wind, drives rotary shaft and helical blade rotation
And remove the choke preventing function of measurement inside pipe wall dust stratification.Limit pull ring can drive entire rotary shaft to move up and down to root out to be difficult
The fouling of cleaning (referring to Fig. 3).Silicon-carbon protection pipe is cased on stagnation pressure wear-resistant pipe again, the wear-resistant protection of itself is realized from structure
With the protection to static pressure wear-resistant pipe.The seal with screwed joint of fixed support shaft and sealing support blanking cover, which adds, is slidingly sealed the two of set
Secondary sealing structure ensure that when working online state, can securely achieve cleaning operation.The tilt angle energy of secondary settlement inclined tube
Dust stratification flows into stagnation pressure wear-resistant pipe and static pressure wear-resistant pipe by gravity in effectively managing, and is then passed by the rotation of helical blade
It is sent to measurement pipe lower end, final reliable measuring medium wind is blown away, the functions such as the online anti-blocking resistant wear of operating condition self-cleaning are realized,
Impurity is rigidly larger, impurity content is very high, in the very high measuring point actual moving process of flow velocity, it can be ensured that impurity can not block measurement
All pressure tappings of device and inner cavity, and ensure be not in impact grinding undermine it is worn out caused by erosive wear or fracture etc. ask
Topic, largely improves service life and the accuracy for ensuring to measure and measurement is linear.
The installation process and the course of work of the utility model:
The utility model need to be installed vertically downward, carry out aperture operation according to installation dimension in tube wall in advance, will be adjustable
Welded flange mounting base is inserted into mounting hole, it is ensured that is adjusted after adjustable welded flange mounting base height, is leveled, welds
Process.By the utility model according to flow direction mark and pipeline flow-direction, it is inserted into adjustable welded flange mounting base and passes through spiral shell
The connection of bolt group.Finally by flowmeter systems attachmentes such as pressure guiding pipeline connection pressure nozzle, differential pressure transmitters, after debugging is normal
It comes into operation.
In use, the secondary settlement inclined tube on secondary settlement inclined tube and static pressure wear-resistant pipe on stagnation pressure wear-resistant pipe passes through respectively
Pressure nozzle is connected to differential pressure transmitter, and signal is received and transmitted by differential pressure transmitter.The number acquired by differential pressure transmitter
According to judging whether measuring device measurement result is normal.If measurement result is abnormal, analyze and determine whether measuring device has leakage
Or stopping state, if leakage, needs leak check point and handles well in time.Measurement result is caused if it is because of blocking
It is abnormal, limit pull ring can be pulled to move up and down cleaning manually and manage interior dust stratification.Measuring device in normal operating conditions, it can be achieved that
The automatic rotary shaft deashing of line operating condition, can also realize that online operating condition is cleared up manually.When needing maintenance shut-downs, in off working state,
Sealing support blanking cover, detachable blanking cover can be removed, stagnation pressure wear-resistant pipe and static pressure wear-resistant pipe is allowed to form the full general formula structure in both ends, cleaning
It safeguards more convenient.
The utility model both can be on circular pipe, can also be on square pipe, the diameter model of circular pipe
Enclosing is 100~500 millimeters the most suitable, the outer dimension range of square pipe be 200 Ⅹ 200 millimeters~500 Ⅹ 500 millimeters it
Between.Always, the caliber of static pressure wear-resistant pipe is between 50~80 millimeters, and the caliber of silicon-carbon protection pipe is between 60~100 millimeters, secondary
Sedimentation pipe caliber is between 40~60 millimeters, and silicon-carbon protection pipe length range is between 200~250 millimeters, and other cun according to master
Components are wanted to determine in proportion.
The above, the only preferred embodiment of the utility model, are not intended to limit the protection of the utility model
Range.
Claims (4)
1. a kind of wear-resisting measuring device with a variety of choke preventing functions, it is characterised in that: including the parallel static pressure being vertically arranged
Wear-resistant pipe (5) and stagnation pressure wear-resistant pipe (6), the static pressure wear-resistant pipe (5) and stagnation pressure wear-resistant pipe (6) are connected by connecting flange (8)
It being connected together, described stagnation pressure wear-resistant pipe (6) lower end offers stagnation pressure pressure tappings (17), the setting of pressure tappings face direction of flow,
The upper end of static pressure wear-resistant pipe (5) and stagnation pressure wear-resistant pipe (6) is provided with sealing support blanking cover (3), and sealing support blanking cover (3) is intermediate
It is threaded with fixed support shaft (14), fixed support shaft (14) upper end is provided with rotatable limit pull ring (13), fixed branch
The external screw thread lower end of support axis (14) is provided with and is slidingly sealed set (4), is slidingly sealed set (4) outer wall with static pressure wear-resistant pipe (5) and always
Press the inner wall interference fit of wear-resistant pipe (6), and by the limited step of static pressure wear-resistant pipe (5) and stagnation pressure wear-resistant pipe (6) inner wall and close
The bottom surface of envelope support blanking cover (3) inner hole limits its position, and the lower end of fixed support shaft (14) is connected with rotary shaft (11), rotates
It is provided on the outer wall of axis (11) helical blade (15), two rotary shafts (11) stretch out in static pressure wear-resistant pipe (5) and stagnation pressure respectively
Wear-resistant pipe (6), bottom are respectively arranged with flywheel blade (12)；
Stagnation pressure pressure nozzle (2) and static pressure pressure nozzle are respectively arranged on the static pressure wear-resistant pipe (5) and stagnation pressure wear-resistant pipe (6)
(18)；
It is coupled logical secondary heavy to be respectively arranged on the static pressure wear-resistant pipe (5) and stagnation pressure wear-resistant pipe (6) upper end outer wall
Drop angle pipe (16) is provided with pressure nozzle (19) on secondary settlement inclined tube (16), and the exit of secondary settlement inclined tube (16) is provided with
Second dismountable blanking cover (1-2).
2. a kind of wear-resisting measuring device with a variety of choke preventing functions according to claim 1, it is characterised in that: described
Silicon-carbon protection pipe (10) are arranged on the stagnation pressure wear-resistant pipe (6) of connecting flange (8) lower end.
3. a kind of wear-resisting measuring device with a variety of choke preventing functions according to claim 1 or 2, it is characterised in that: institute
The fixation support shaft (14) stated is connect with rotary shaft (11) by T-shape rotary joint.
4. a kind of wear-resisting measuring device with a variety of choke preventing functions according to claim 3, it is characterised in that: described
Static pressure wear-resistant pipe (5) is identical with the caliber of stagnation pressure wear-resistant pipe (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820995790.5U CN208459199U (en) | 2018-06-27 | 2018-06-27 | A kind of wear-resisting measuring device with a variety of choke preventing functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820995790.5U CN208459199U (en) | 2018-06-27 | 2018-06-27 | A kind of wear-resisting measuring device with a variety of choke preventing functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208459199U true CN208459199U (en) | 2019-02-01 |
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ID=65169875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820995790.5U Active CN208459199U (en) | 2018-06-27 | 2018-06-27 | A kind of wear-resisting measuring device with a variety of choke preventing functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208459199U (en) |
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2018
- 2018-06-27 CN CN201820995790.5U patent/CN208459199U/en active Active
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