CN205002806U - Two flanges are got and are pressed balanced type flowmeter - Google Patents
Two flanges are got and are pressed balanced type flowmeter Download PDFInfo
- Publication number
- CN205002806U CN205002806U CN201520684451.1U CN201520684451U CN205002806U CN 205002806 U CN205002806 U CN 205002806U CN 201520684451 U CN201520684451 U CN 201520684451U CN 205002806 U CN205002806 U CN 205002806U
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- flange
- hole plate
- balance hole
- measuring tube
- balance
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Abstract
The utility model discloses two flanges are got and are pressed balanced type flowmeter, by surveying buret (1), flange (the 2a at connection both ends about surveying buret (1), 2b), fixed seal connects balanced orifice plate (3) that set up surveying buret (1) middle part, offer getting on buret (1) is surveyed to balanced orifice plate (3) the left and right sides respectively and press pipe (4a, 4b), get and press pipe flange (5a, 5b), connect to install and getting pressure pipe flange (5a, 5b), the two flange differential pressure transmitter on constitute. It makes conveniently, can guarantee to measure the high viscosity, can not arouse the jam during dirty medium, and measurement accuracy can reach 0.5 grade.
Description
Technical field
The utility model relates to balance type flow meter.
Background technology
Balance type flow meter is the non-standard restriction device of one grown up on standard orifice plate basis.Its sensor is the throttling element of a porous, when fluid is through porous restriction part, liquid will be balanced adjustment, form the full-blown turbulent flow that velocity flow profile has certain rule, stable differential pressure signal can be obtained by pressure obtaning device, calculate volumetric flow rate according to bernoulli equation, be provided with precision high, required straight length is short, and the features such as crushing is little, are widely used in the industrial circles such as rock gas, chemical industry, oil refining.
Prior art balance flow meter is by a pair pressure flange, is clamped to the balance hole plate in pressure flange, sealing gasket, pressure flange fastening connection piece 4, pressure flange is offered pressure port and forms.
When medium flows through balance hole plate, by being arranged on the pressure transducer in pressure port that pressure flange is offered, the pressure signal of side before and after the orifice plate that averages out, logical differential pressure transmitter records differential pressure signal, differential pressure is directly proportional to the square root of flow, thus records rate-of flow.
Above-mentioned prior art in use, because the pressure port on pressure flange is smaller, is generally Φ 8 or Φ 10, be only suitable for measuring low viscosity cleaning medium, when measure high viscosity fluid, containing solid particle fluid, pulpous state fluid time, pressure port is easily blocked, thus impact measure.The number of aperture of balance hole plate is also varied simultaneously, makes balance flow meter product be difficult to form standardization.
Utility model content
The purpose of this utility model improves for above-mentioned the deficiencies in the prior art, provides a kind of two flange tapping balance flow meter, be optimized simultaneously to the perforate mode of balance hole plate.
The utility model balance flow meter is arranged on balance hole plate 3 in the middle part of measuring tube 1 by measuring tube 1, the joint flange 2a, the 2b that are connected to measuring tube about 1 two ends, fixed seal connection, is opened in pressure pipe 4a, 4b on balance hole plate 3 left and right sides measuring tube 1 respectively, pressure pipe flange 5a, 5b, the double flanges differential pressure transmitter be mounted on pressure pipe flange 5a, 5b are formed;
Multiple equalizing ports 6 that balance hole plate 3 is offered are: offer an equalizing port 6 at the center of balance hole plate 3, and all the other equalizing ports 6 ' are uniformly distributed and are opened in on the concentric circles that is the center of circle of the center of balance hole plate 3;
The density S of equalizing port 6 is 0.45
S=(3.14×D1-n×d)÷D
D: equalizing port 6 diameter mm
N: the quantity of equalizing port 6
D: be balance hole plate 3 external diameter mm
D1: equalizing port 6 distributes concentric circles diameter mm.
The utility model is when medium flows through balance hole plate 3 by measuring tube 1, and before and after balance hole plate 3, pressure port can produce different pressure, records differential pressure signal by double flanges differential pressure transmitter.Differential pressure is directly proportional to flow and square root, thus records rate-of flow.
The utility model offers pressure pipe 4a, 4b because adopt on measuring tube 1, and pressure port diameter can reach more than Φ 50mm, can ensure measurement high viscosity, can not cause blocking during dirty medium.
By the density of the number of openings and perforate of determining equalizing port 6, greatly improve balance flow meter standardization level, conveniently to manufacture, verify by experiment, this perforate mode measuring accuracy can reach 0.5 grade.
Accompanying drawing explanation
Fig. 1 is the utility model example structure schematic diagram.
Namely the K direction view of Fig. 2 Fig. 1 is balance hole plate 3 structural representation.
Embodiment
The utility model balance flow meter is arranged on balance hole plate 3 in the middle part of measuring tube 1 by measuring tube 1, the joint flange 2a, the 2b that are connected to measuring tube about 1 two ends, fixed seal connection, is opened in pressure pipe 4a, 4b on balance hole plate 3 left and right sides measuring tube 1 respectively, pressure pipe flange 5a, 5b, the double flanges differential pressure transmitter be mounted on pressure pipe flange 5a, 5b are formed;
7 equalizing ports 6 that balance hole plate 3 is offered are: offer an equalizing port 6 at the center of balance hole plate 3, and all the other 6 equalizing ports 6 ' are uniformly distributed and are opened in on the concentric circles that is the center of circle of the center of balance hole plate 3;
The density S of equalizing port 6 is 0.45
S=(3.14×D1-n×d)÷D
D: equalizing port 6 diameter mm
N: the quantity of equalizing port 6
D: be balance hole plate 3 external diameter mm
D1: equalizing port 6 distributes concentric circles diameter mm.
Claims (1)
1. pair flange tapping balance type flow meter, is characterized in that: by measuring tube (1), the joint flange (2a, 2b) being connected to measuring tube (1) two ends, left and right, fixed seal connection be arranged on measuring tube (1) middle part balance hole plate (3), be opened in pressure pipe (4a, 4b) on balance hole plate (3) left and right sides measuring tube (1) respectively, pressure pipe flange (5a, 5b), the double flanges differential pressure transmitter be mounted on pressure pipe flange (5a, 5b) form;
Multiple equalizing ports (6) that balance hole plate (3) is offered are: offer an equalizing port (6) at the center of balance hole plate (3), and all the other equalizing ports (6 ') are uniformly distributed that to be opened in the center of balance hole plate (3) be on the concentric circles in the center of circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520684451.1U CN205002806U (en) | 2015-09-07 | 2015-09-07 | Two flanges are got and are pressed balanced type flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520684451.1U CN205002806U (en) | 2015-09-07 | 2015-09-07 | Two flanges are got and are pressed balanced type flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205002806U true CN205002806U (en) | 2016-01-27 |
Family
ID=55159690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520684451.1U Active CN205002806U (en) | 2015-09-07 | 2015-09-07 | Two flanges are got and are pressed balanced type flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205002806U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105698879A (en) * | 2016-04-08 | 2016-06-22 | 大唐彬长发电有限责任公司 | Multi-measuring point flow measurement device |
| CN107687876A (en) * | 2016-08-06 | 2018-02-13 | 赵乐 | A kind of measurement apparatus and measuring method for measuring fluid flow |
-
2015
- 2015-09-07 CN CN201520684451.1U patent/CN205002806U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105698879A (en) * | 2016-04-08 | 2016-06-22 | 大唐彬长发电有限责任公司 | Multi-measuring point flow measurement device |
| CN107687876A (en) * | 2016-08-06 | 2018-02-13 | 赵乐 | A kind of measurement apparatus and measuring method for measuring fluid flow |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |