CN208043136U - V cone flow meters - Google Patents

V cone flow meters Download PDF

Info

Publication number
CN208043136U
CN208043136U CN201820267314.1U CN201820267314U CN208043136U CN 208043136 U CN208043136 U CN 208043136U CN 201820267314 U CN201820267314 U CN 201820267314U CN 208043136 U CN208043136 U CN 208043136U
Authority
CN
China
Prior art keywords
tube body
pipe
postcentrum
negative pressure
flow meters
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201820267314.1U
Other languages
Chinese (zh)
Inventor
吴建峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHENZHOU OBSERVATION AND CONTROL EQUIPMENT CO Ltd
Original Assignee
SHENZHOU OBSERVATION AND CONTROL EQUIPMENT CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SHENZHOU OBSERVATION AND CONTROL EQUIPMENT CO Ltd filed Critical SHENZHOU OBSERVATION AND CONTROL EQUIPMENT CO Ltd
Priority to CN201820267314.1U priority Critical patent/CN208043136U/en
Application granted granted Critical
Publication of CN208043136U publication Critical patent/CN208043136U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a kind of V cone flow meters, including tube body, hollow centrum is equipped in the tube body, the hollow centrum includes precentrum, postcentrum and connection ring, the left side of the connection ring and the big opening end end face of precentrum connect, and the right side of the connection ring and the big opening end end face of postcentrum connect;The axis of the axis of the conulite and tube body overlaps or parallel, running through along the axis of conulite has pressure guiding pipe, one end of the pressure guiding pipe is connected to and in communication with negative pressure pipe, the negative pressure pipe passes through the tube wall of tube body and is fixedly connected with tube body, and the pressure guiding pipe is equipped in the end for being connected with negative pressure pipe one end and blocks;The tube body is also fixedly connected in the side for being connected with negative pressure pipe and is communicated with positive pressure pipe;It is simple in structure, be easily achieved, measurement performance is stablized, and ensure that the precision in measurement process, stablizes high in measurement process, and ways of measure pressure is simple.

Description

V cone flow meters
Technical field
The utility model is related to a kind of measurement of fluid flow utensil more particularly to a kind of V cone flow meters.
Background technology
V-type cone flow meter is a kind of novel differential pressure flowmeter proposed the 1980s, it is being flowed using V-type cone The throttle effect that generates measures flow in.Compared with common fluid, it changes throttling layout, is changed to from centre bore throttling Ring-type throttling.Long-term use proves that V-type flowmeter is compared with general differential pressure flowmeter, the spies such as suitable dirty medium, crushing are small Point.More since V-type cone flow meter is a kind of differential pressure flowmeter, its principle mutually converted based on energy in closed conduct primary Exert sharp law.
Currently, measuring flow field in differential pressure type, V cone flow meters are high, reproducible with precision, are limited to by mounting condition Superperformance small, wear-resistant, measurement range is wide, therefore it is widely used.But currently, common V cone flow meter type cones Center line be easy and measurement pipe axis runout, coincidence is not achieved, seriously affects flow measurement accuracy of measurement and stability;It is another Aspect is when big flow medium flows through, and V-type cone is easy to be washed out;Also hollow centrum is one in V cone flow meters Important component, the prior art mostly use greatly the making side for being welded directly together forward and backward Taper Pipe when making cone assembly Rear Taper Pipe part in order to make weld have impetus, therefore need to be socketed in the big opening end of preceding Taper Pipe (referring to Fig. 1) by formula, this Kind of structure make in the welding process it is difficult to ensure that forward and backward Taper Pipe to neutrality, and weld the narrow space of operation, bad behaviour Make, when making Taper Pipe, generally rolled using plank, using the size essence for the Taper Pipe big opening end end face that this technique is produced Spend relatively low, the maximum outside diameter size of cone assembly is difficult to accurately control, and causes the qualification rate of product not high.
Therefore, in view of the above-mentioned problems, the present invention proposes a kind of new technical solution.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of V cone flow meters, improve the secured of hollow centrum The case where spending and preventing from blocking.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is:
A kind of V cone flow meters, including tube body, are equipped with hollow centrum in the tube body, the hollow centrum include precentrum, Postcentrum and connection ring, the left side of the connection ring and the big opening end end face of precentrum connect, the right side of the connection ring It is connect with the big opening end end face of postcentrum;The axis of the axis of the conulite and tube body overlaps or parallel, along conulite Axis through thering is pressure guiding pipe, one end and the negative pressure pipe of the pressure guiding pipe to be connected to and in communication with, the negative pressure pipe is across tube body Tube wall and be fixedly connected with tube body, the pressure guiding pipe the end for being connected with negative pressure pipe one end be equipped with block;The tube body It is also fixedly connected in the side for being connected with negative pressure pipe and is communicated with positive pressure pipe;The postcentrum of the hollow centrum is equipped with multiple Tracting pressuring hole.
Preferably, the tube body wall, which is equipped with temp probe, is inserted into hole.
Preferably, the both ends of the tube body are equipped with flange.
Preferably, the multiple tracting pressuring hole is distributed in the both sides and bottom of postcentrum.
Preferably, being equipped with supporting rack between the conulite and the tube body.
The utility model has the characteristics that following and advantageous effect:It is simple in structure, be easily achieved, forward and backward cone passes through company Ring is connect to be welded and fixed, solve weld in the prior art inconvenient, outer diameter and circularity is not easy to control, product qualification rate not High problem, improves service life;The axis of both sides tracting pressuring hole is identical as the direction that foul descends slowly and lightly so that descend slowly and lightly object into The probability entered in pressure tap greatly reduces;Even if there is a small amount of foul to enter in pressure guiding pipe, due to being equipped with length in the bottom of postcentrum Tracting pressuring hole so that the object fallen into can not possibly be accumulated in pressure guiding pipe, and be fallen directly in pipeline by the tracting pressuring hole of bottom It goes, thus the tracting pressuring hole of conical head bottom plays the role of removing dirty object automatically;Measurement performance is stablized, and ensure that measurement Precision in the process, stablizes in measurement process high, and ways of measure pressure is simple.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property It puts, other drawings may also be obtained based on these drawings.
FIG. 1 is a schematic structural view of the utility model.
Fig. 2 is the postcentrum end face tracting pressuring hole distribution schematic diagram in the utility model.
In figure, 1- tube bodies;The hollow centrums of 2-;21- precentrums;22- postcentrums;23- connection rings;3- pressure guiding pipes;4- is negative to be taken Pressure pipe;5- positive pressure pipes;6- tracting pressuring holes;7- supporting racks;8- temp probes are inserted into hole.
Specific implementation mode
Specific embodiment of the present utility model is described further below in conjunction with the accompanying drawings.It should be noted that The explanation of these embodiments is used to help to understand the utility model, but does not constitute the restriction to the utility model.This Outside, technical characteristic involved in the various embodiments of the present invention described below is as long as they do not conflict with each other It can be combined with each other.
As shown, a kind of V cone flow meters, including tube body 1, tube body 1 is interior to be equipped with hollow centrum 2, before hollow centrum 2 includes Centrum 21, postcentrum 22 and connection ring 23, the left side of connection ring 23 are connect with the big opening end end face of precentrum 21, connection ring 23 Right side connect with the big opening end end face of postcentrum 22, precentrum 21 and postcentrum 22 can by welding with connect 23 phase of ring is fixedly connected;The axis of the axis of conulite 2 and tube body 1 overlaps or parallel, and the axis along conulite 2 is through having Pressure guiding pipe 3, one end and the negative pressure pipe 4 of pressure guiding pipe 3 are connected to and in communication with, negative pressure pipe 4 pass through tube body 4 tube wall and with tube body 1 It is fixedly connected, pressure guiding pipe 3 is equipped in the end for being connected with 4 one end of negative pressure pipe and blocks 5;Tube body 1 is being connected with negative pressure pipe 4 Side is also fixedly connected and is communicated with positive pressure pipe 5;The postcentrum 22 of hollow centrum 2 is equipped with multiple tracting pressuring holes 6, multiple impulses The setting in hole 6 also reduces the blocked probability of pressure guiding pipe 3.
Wherein, tube body wall is equipped with temp probe and is inserted into hole 8, is convenient for measuring the temperature of the substance in tube body.
It is further improved in the utility model, the both ends of tube body 1 are equipped with flange, are connected admittedly with other pipes for tube body It is fixed.
It is further improved in the utility model, multiple tracting pressuring holes 6 are distributed in the both sides and bottom of postcentrum 22, in this implementation In example, tracting pressuring hole is set to the axially bored line of the tracting pressuring hole of postcentrum both sides and sets in the respectively setting 1 of the both sides of postcentrum and bottom It is placed in the axially bored line intersection of the tracting pressuring hole of bottom;With reference to the accompanying drawings 2, tracting pressuring hole 61 and 62 is respectively set in the both sides of postcentrum, Tracting pressuring hole 63 is arranged in bottom.
It is further improved in the utility model, supporting rack 7 is equipped between conulite 2 and tube body 1, supporting rack 7 can be with Increase firmness of the hollow centrum in tube body.
The particular technique index of the V wimble structure flowmeter embodiments is:
Uncertainty:± 0.5% (precision reachable ± 0.3%, can be used for Trade Measures after calibration).
Reproducible, signal stabilization:Better than orifice plate 1/10.
Crushing is small:Same β value, crushing are orifice plates 1/3~1/5.
Reynolds number range:5 × 103~1 × 107 upper limits can be lower with higher, lower limit.
Range ratio is wide:Usually 10:1, select suitable parameter highest that can accomplish 50:1.
Pipeline range is wide:Line size is from 1/2 "~80 " (DN15~2000mm).
β value range is wide:The unique geometries of V-cone allow have extensive β value range.The β value of standard is 0.450, 0.550,0.650,0.750,0.850, and can specific β value to ensure that the output of user's specific differential pressure (does not increase expense yet not shadow Ring delivery date).
Installation requirement is low:Center V-arrangement throttling, remolds current curve, is not required to straight pipe rectification, and installation flow development length only needs 1~3D of upstream, 0~1D of downstream.
It is wear-resistant:After streamlined V bullets throttling, generates wire body effect of boundary layer on bullet surface and make bullet not It is easy to wear, without periodic cleaning, component is replaced, is demarcated without repeating.
It does not block, does not adhere to:The thorough sweeping type of taper designs the stagnant of the residue avoided in fluid, coagulation or particle It stays.
Long-time stability are good:β rates can remain unchanged for a long period of time, and ensure long-term accurate measurement.
Complete in specifications, mounting means is flexible.
It is adaptable to measured medium.It can pyrometry, high-pressure medium:700 DEG C of operating temperature highest, maximum pressure 42Mpa;Dirty medium (coke-stove gas, blast furnace gas, feedstock oil, residual oil etc.) can be surveyed;It is (moisture, cold that gas-liquid two-phase medium can be surveyed Condensate etc.).
The embodiment of the utility model is explained in detail above in association with attached drawing, but the utility model is not limited to be retouched The embodiment stated.For a person skilled in the art, right in the case where not departing from the utility model principle and spirit These embodiments carry out a variety of change, modification, replacement and modification, still fall in the scope of protection of the utility model.

Claims (5)

1. a kind of V cone flow meters, it is characterised in that:Including tube body, hollow centrum, the hollow centrum packet are equipped in the tube body Precentrum, postcentrum and connection ring are included, the left side of the connection ring and the big opening end end face of precentrum connect, the connection ring Right side and postcentrum big opening end end face connect;The axis of the conulite is overlapped with the axis of tube body or parallel, edge The axis of conulite, which runs through, has pressure guiding pipe, one end and the negative pressure pipe of the pressure guiding pipe to be connected to and in communication with, the negative pressure pipe Across tube body tube wall and be fixedly connected with tube body, the pressure guiding pipe the end for being connected with negative pressure pipe one end be equipped with block; The tube body is also fixedly connected in the side for being connected with negative pressure pipe and is communicated with positive pressure pipe;The postcentrum of the hollow centrum Equipped with multiple tracting pressuring holes.
2. V cone flow meters according to claim 1, it is characterised in that:The tube body wall is equipped with temp probe and is inserted into hole.
3. V cone flow meters according to claim 1, it is characterised in that:The both ends of the tube body are equipped with flange.
4. V cone flow meters according to claim 1, it is characterised in that:The multiple tracting pressuring hole is distributed in the two of postcentrum Side and bottom.
5. V cone flow meters according to claim 1, it is characterised in that:It is equipped between the conulite and the tube body Supporting rack.
CN201820267314.1U 2018-02-24 2018-02-24 V cone flow meters Active CN208043136U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820267314.1U CN208043136U (en) 2018-02-24 2018-02-24 V cone flow meters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820267314.1U CN208043136U (en) 2018-02-24 2018-02-24 V cone flow meters

Publications (1)

Publication Number Publication Date
CN208043136U true CN208043136U (en) 2018-11-02

Family

ID=63949866

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201820267314.1U Active CN208043136U (en) 2018-02-24 2018-02-24 V cone flow meters

Country Status (1)

Country Link
CN (1) CN208043136U (en)

Similar Documents

Publication Publication Date Title
CN208043136U (en) V cone flow meters
CN2689181Y (en) Internal gyroscopic flow measuring shutoff apparatus
CN207622808U (en) A kind of detachable wedge flow meter
CN203148476U (en) Novel V-shaped conical flow meter
CN106323392A (en) An anti-interference measuring pipe segment of an ultrasonic flow sensor
CN209639790U (en) A kind of V cone flow meter being easily changed
CN205079804U (en) Throttling arrangement and throttling flow meter
CN208091517U (en) A kind of annular perforated-plate throttling device
CN210625749U (en) Differential pressure type flow detection system
CN211401315U (en) Differential pressure flow sensor for backrest pipe
CN206919943U (en) A kind of block-resistant type V cone flow meters
CN208567986U (en) A kind of flowmeter
CN101881639A (en) V-cone flow meter and use method thereof
CN202869558U (en) V-cone structure flowmeter
CN201589634U (en) Rectifier for flowmeter
CN203287055U (en) Pore plate for measuring natural gas
CN201653465U (en) V-shaped conical flowmeter
CN202956149U (en) Matrix venturi type cross section flowmeter
CN108414041A (en) A kind of annular perforated-plate throttling device and its pressure method for discharging pollution
CN205843733U (en) A kind of fluid measurement instrument
CN204944562U (en) A kind of heavy caliber many larynxs flowmeter
CN201034645Y (en) Multi-point support type V awl flow rate sensor
CN104930294B (en) Damping pipe fitting for pulse monitoring
CN208476319U (en) A kind of anti-blocking self-clean type flowmeter
CN201697646U (en) V-shaped cone flow meter

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant