CN1306253C - Horizontal metal tube float flow meter with array polyporous rectifier - Google Patents
Horizontal metal tube float flow meter with array polyporous rectifier Download PDFInfo
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- CN1306253C CN1306253C CNB2005100131776A CN200510013177A CN1306253C CN 1306253 C CN1306253 C CN 1306253C CN B2005100131776 A CNB2005100131776 A CN B2005100131776A CN 200510013177 A CN200510013177 A CN 200510013177A CN 1306253 C CN1306253 C CN 1306253C
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Abstract
The present invention relates to a horizontal type metal-tube floater flowmeter with an array-shaped multi-hole rectifier, which is mainly composed of a sensor, wherein the sensor mainly comprises an array-shaped rectifier, a conical tube, a magnet protecting shell, a support frame, a floater, a magnet, etc. A liquid inlet tube segment is smoothly transited and connected with an internal flow passage. The array-shaped rectifier is positioned in the combining position of the conical tube and the internal flow passage. The lower edge of a top flange is provided with the support frame. Slender rods on the upper end and the lower end of the floater respectively penetrate through the support frame and the array-shaped rectifier. A top covering plate is sheathed with the magnet protecting shell and is fixed with the top flange by a screw bolt. The magnet is positioned in the magnet protecting shell. Holes on the array-shaped rectifier are arranged non-uniformly. The distribution of hole diameters guarantees that the ratio of circulation areas is equal to the ratio of flow speeds and is obtained by calculating according to V[L]: V[R]=A[L]: A[R]. The present invention solves the problem that floater flowmeters used in the design and the production of petroleum and chemical engineering of China only can be arranged vertically, and has the importance that the increase of flowmeter accuracy and the optimization of the flow rate and performance are convenient for the use of users.
Description
Technical field
The invention belongs to the liquid flow measurement instrument, be specifically related to array polyporous rectifier and be applied to technology in the horizontal metal tube float flow meter.
Background technology
The flow detecting element of suspended body flowmeter is generally formed from vertical taper pipe and a float that moves along the Taper Pipe axle of down and upwards enlarging by one.When detected fluid is passed through the annular space of Taper Pipe and float formation from bottom to top, the float upper and lower side produces differential pressure and forms the power that float rises, when the suffered raising force of float when being immersed in the fluid float gravity, float just rises, the annular space area increases thereupon, annular space place rate of flow of fluid descends immediately, float upper and lower side differential pressure reduces, the raising force that acts on float is also along with minimizing, when raising force equals to be immersed in the fluid float gravity, float just is stabilized in a certain height, and float height and flow of passing through in Taper Pipe have one-to-one relationship.That float type flow meter has is simple in structure, it is easy to maintenance to use, to straight length before the instrument less demanding, the pressure loss is little and constant, range ratio big, the output of flow detecting element approaches linearity, characteristics such as applied widely.At present, employed suspended body flowmeter in commercial production such as China's chemical industry, oil, it is rectilinear that its installation form is, and mounting means is single and strict, gives to produce to design and causes certain degree of difficulty.If existing pipeline is a horizontal fixed, also need to change horizontal pipe into vertical pipe earlier flowmeter could be installed, when not having rich space around the pipeline, then be difficult to install additional again flowmeter, dwindled the application of suspended body flowmeter like this, limited the development of suspended body flowmeter, so the suspended body flowmeter that horizontal is installed arises at the historic moment.The patent No. is 98200488.5 the metal pipe float flow meter that has once designed a kind of level installation, because its special construction makes it to be installed on the horizontal pipe.Domestic several producers also have level that the product of metal pipe float flow meter is installed, as the horizontal installing type metal pipe float flow meter of Crow Buddhist nun's H256, and the F56H horizontal metal tube float flow meter of Beijing airport north light instrument company limited etc.Though this novel suspended body flowmeter has overcome the drawback of traditional suspended body flowmeter, but because of the singularity of its structure makes the flow field of sensor internal distort, be subjected to force unbalance about float, cause the float shake, and then having influenced the measuring accuracy of suspended body flowmeter, it is particularly outstanding that this phenomenon shows under big flow.The distortion in flow field must be properly settled the influence of flowmeter survey precision, but it is not enough only the structure of horizontal metal tube float flow sensor itself being optimized, experimental results show that this structure can not effectively improve the distribution in flow field, proposition of the present invention can make the problems referred to above be able to thorough solution.
Summary of the invention
Drawback at above-mentioned several horizontal suspended body flowmeters, the purpose of this invention is to provide a kind of horizontal metal tube float flow meter with array polyporous rectifier, can effectively solve the jitter problem that has float in the horizontal metal tube float flow meter, this suspended body flowmeter can be easily installed on the horizontal pipe, and the measuring accuracy of the formula metal pipe float flow meter of can improving the standard.
Followingly structural principle of the present invention is illustrated with reference to accompanying drawing.The horizontal metal tube float flow meter of band array polyporous rectifier mainly is made of sensor.Sensor mainly comprises flange in the bottom 1, fluid inlet and outlet flange 2, row shape rectifier 3, Taper Pipe 4, top blind flange 5, magnet protective case 6, bracing frame 7, outside straight tube 8, float 9, top flange 10.For being connected smoothly, row shape rectifier 3 is positioned at the junction of Taper Pipe 4 and inner flow passage 11 between fluid inlet pipeline section 12 and the inner flow passage 11.Be provided with bracing frame 7 in the lower edge of top flange 10, bracing frame 7 can limit the forms of motion of float effectively, but this restriction can not suppress the shake of float fully, joins and 3 in row shape rectifier can effectively solve the float shake.The thin bar of float 9 upper and lower sides passes bracing frame 7 and row shape rectifier 3 respectively, top blind flange 5 suit magnet protective cases 6 and with top flange 10 bolt, magnet 13 is arranged in magnet protective case 6.Hole on the row shape rectifier 3 is non-homogeneous arrangement, fluid intake is comply with in the cross section of row shape rectifier 3 be divided into three zones, left, center, right (the rectifier structure synoptic diagram as shown in Figure 2) from left to right to the direction that exports.Middle (II) zone is provided with 3 row holes, and left end (I) zone is provided with 1 row, and right-hand member (III) zone is provided with 2 row, and each is unequal in trizonal aperture, and the distribution of aperture guarantees that the ratio of its circulation area equals the ratio of its flow velocity, according to V
L: V
R=A
L: A
RCalculate, in the formula: V
L-Lie shape rectifier left end mean flow rate (m/s); V
R-Lie shape rectifier right-hand member mean flow rate (m/s); A
L-Lie shape rectifier left end circulation area (m
2); A
R-Lie shape rectifier right-hand member circulation area (m
2).
Beneficial effect of the present invention and advantage are, the horizontal metal tube float flow meter of band array polyporous rectifier is compared with existing horizontal metal tube float flow meter, has higher measuring accuracy, improved the performance of horizontal metal tube float flow meter greatly, and rectifier ratio tubular type, the Zanker formula rectifier structure in the past that the present invention uses is simple, easy for installation.The present invention has not only solved suspended body flowmeter that China uses in oil, Chemical Engineering Design are produced can only vertically arranged problem, the raising of what is more important flowmeter accuracy and this flow and optimization in Properties are more convenient for user's use, and the effect in process of production of this flowmeter will be more important also.
Description of drawings
Fig. 1 is the horizontal metal tube float flow meter structure principle chart of band array polyporous rectifier.
Fig. 2 is the structural representation of array polyporous rectifier.
Embodiment
The present invention is described further below by embodiment.The horizontal metal tube float flow meter of band array polyporous rectifier mainly is to make new design at Sensor section.For smooth transition is connected, the import pipeline section is vertical with the inner flow passage pipeline section between fluid inlet pipeline section 12 and the inner flow passage 11.Inner flow passage 11 is connected as a single entity with Taper Pipe 4 and places the inside of outside straight tube 8, and row shape rectifier 3 places the junction of inner flow passage 11 and Taper Pipe 4.Float 9 is designed to have the form of upper and lower side bar, and the upper and lower side bar passes bracing frame 7 and row shape rectifier 3 respectively, and float 9 can be upper and lower mobile in Taper Pipe 4 under the restriction of bracing frame 7 and row shape rectifier 3 when media flow.Concave station of lower edge processing of circle bracing frame 7 of packing in top flange 10 is with the shake of restriction float 9.Top blind flange 5 is welded as a whole after being inserted in magnet protective case 6, and magnet 13 is embedded in the magnet protective case 6, and is fixing with bolt and top flange 10 during installation.11 welding of the loam cake of flange in the bottom 1 and inner flow passage, flange in the bottom 1 the dismounting of mainly being convenient to sensor is set.The cross section of row shape rectifier 3 is divided into three zones, and middle (II) zone is provided with 3 row (18 hole), and the aperture is 11.5mm.Left end (I) zone is provided with 1 row (3 hole), and the aperture is 14.5mm.Right-hand member (III) zone is provided with 2 row (8 hole), and the aperture is 7.5mm.
Link together by the pipeline of import and export flange 2 with horizontal metal tube float flow meter and detected fluid, left end is a fluid inlet, and right-hand member is a fluid egress point.Measured medium enters float flow sensor from fluid inlet pipeline section 12, upwards flow along inner flow passage 11, distortion has appearred in the stream shape of this moment, the fluid media (medium) of stream shape distortion is optimised through row shape rectifier 3 back stream shapes, make float 9 bottoms be subjected to because the substantial symmetry that upwards pressure that fluid velocity causes, this pressure and float 9 the making a concerted effort of suffered buoyancy in fluid, make float 9 overcome the gravity of himself and move upward.Along with the increase of float 9 and 4 annular space areas of tapered tube, the speed that fluid flows through annulus area constantly reduces, and when the power that makes progress balances each other with downward power, floating body 9 will be still in a certain position relatively.Promptly cause that when the gravity of float 9, suffered buoyancy and by fluid velocity when upwarding pressure three's balance, float 9 is in equilibrium state.
This suspended body flowmeter has very significantly effect of optimization for the flow field under the big flow, has improved the horizontal float The certainty of measurement of flowmeter and performance indications, simple structure, easy for installation, the pressure loss is little, and stroke is short, generally is suitable for In industrial production industries such as oil, chemical industry.
Claims (2)
1. be with the horizontal metal tube float flow meter of array polyporous rectifier, mainly constitute by sensor, it is characterized in that described sensor mainly comprises flange in the bottom (1), fluid inlet and outlet flange (2), row shape rectifier (3), Taper Pipe (4), top blind flange (5), magnet protective case (6), bracing frame (7), outside straight tube (8), float (9), top flange (10), between fluid inlet pipeline section (12) and the inner flow passage (11) for being connected smoothly, row shape rectifier (3) is positioned at the junction of Taper Pipe (4) and inner flow passage (11), be provided with bracing frame (7) in the lower edge of top flange (10), the thin bar of float (9) upper and lower side passes bracing frame (7) and row shape rectifier (3) respectively, top blind flange (5) suit magnet protective case (6) and with top flange (10) bolt, magnet (13) is arranged in magnet protective case (6).
2. the horizontal metal tube float flow meter of band array polyporous rectifier according to claim 1, it is characterized in that the hole on the described row shape rectifier (3) is non-homogeneous arrangement, the cross section of described row shape rectifier (3) is divided into three zones, zone line is provided with 3 row holes, the left end zone is provided with 1 row, and the right-hand member zone is provided with 2 row, and each is unequal in the aperture in 3 zones, the distribution in aperture guarantees that the ratio of its circulation area equals the ratio of its flow velocity, according to V
L: V
R=A
L: A
RCalculate,
In the formula: V
L-Lie shape rectifier left end mean flow rate (m/s); V
R-Lie shape rectifier right-hand member mean flow rate (m/s); A
L-Lie shape rectifier left end circulation area (m
2); A
R-Lie shape rectifier right-hand member circulation area (m
2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100131776A CN1306253C (en) | 2005-02-02 | 2005-02-02 | Horizontal metal tube float flow meter with array polyporous rectifier |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100131776A CN1306253C (en) | 2005-02-02 | 2005-02-02 | Horizontal metal tube float flow meter with array polyporous rectifier |
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| Publication Number | Publication Date |
|---|---|
| CN1648613A CN1648613A (en) | 2005-08-03 |
| CN1306253C true CN1306253C (en) | 2007-03-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005100131776A Expired - Fee Related CN1306253C (en) | 2005-02-02 | 2005-02-02 | Horizontal metal tube float flow meter with array polyporous rectifier |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12066310B2 (en) | 2021-07-02 | 2024-08-20 | Shandong Tiangong Petroleum Equipment Co., Ltd. | Crude oil flow metering device |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8113046B2 (en) * | 2010-03-22 | 2012-02-14 | Honeywell International Inc. | Sensor assembly with hydrophobic filter |
| US8397586B2 (en) * | 2010-03-22 | 2013-03-19 | Honeywell International Inc. | Flow sensor assembly with porous insert |
| CN101865193A (en) * | 2010-07-19 | 2010-10-20 | 中国航空工业集团公司西安飞机设计研究所 | A Simple Rectification Method for Irregular Air Duct Flow Field |
| CN103017838A (en) * | 2012-11-21 | 2013-04-03 | 丹东通博电器(集团)有限公司 | S-shaped tube measurer of float flowmeter and float flowmeter using same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63167196A (en) * | 1986-12-27 | 1988-07-11 | Higasa Giken Kk | Overcharge preventing device |
| CN2044065U (en) * | 1988-04-05 | 1989-09-06 | 李学勤 | Magnetic float flow signal meter with magnetic memory switch |
| CN2157495Y (en) * | 1992-01-09 | 1994-02-23 | 航空航天工业部上海航天局第八○五研究所 | Float steam flowmeter |
| CN2318612Y (en) * | 1998-01-22 | 1999-05-12 | 王北光 | Horizontal installed metal pipe float flowmeter |
| JP2001221666A (en) * | 2000-02-10 | 2001-08-17 | Rally Master Kk | Area type flow meter with sensor |
-
2005
- 2005-02-02 CN CNB2005100131776A patent/CN1306253C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63167196A (en) * | 1986-12-27 | 1988-07-11 | Higasa Giken Kk | Overcharge preventing device |
| CN2044065U (en) * | 1988-04-05 | 1989-09-06 | 李学勤 | Magnetic float flow signal meter with magnetic memory switch |
| CN2157495Y (en) * | 1992-01-09 | 1994-02-23 | 航空航天工业部上海航天局第八○五研究所 | Float steam flowmeter |
| CN2318612Y (en) * | 1998-01-22 | 1999-05-12 | 王北光 | Horizontal installed metal pipe float flowmeter |
| JP2001221666A (en) * | 2000-02-10 | 2001-08-17 | Rally Master Kk | Area type flow meter with sensor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12066310B2 (en) | 2021-07-02 | 2024-08-20 | Shandong Tiangong Petroleum Equipment Co., Ltd. | Crude oil flow metering device |
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| CN1648613A (en) | 2005-08-03 |
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