CN105466505A - Content analyzing apparatus - Google Patents
Content analyzing apparatus Download PDFInfo
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- CN105466505A CN105466505A CN201410423649.4A CN201410423649A CN105466505A CN 105466505 A CN105466505 A CN 105466505A CN 201410423649 A CN201410423649 A CN 201410423649A CN 105466505 A CN105466505 A CN 105466505A
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- temperature sensor
- heating element
- housing
- analyzing apparatus
- straight tube
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Abstract
A content analyzing apparatus is provided. A heat-insulating layer is arranged on an inner cavity wall of a straight tube housing with two opened ends; the upper wall of the housing is provided with two separated temperature sensors; a front temperature sensor is arranged on the front part of the housing and a back temperature sensor is arranged on the back part of the housing; the lower wall of the housing is provided with a heating element; the heating element is arranged between the front temperature sensor and the back temperature sensor; the internal diameter of the straight tube housing is D; the distance between the front temperature sensor and the heating element is indicated as t1, which is 0.5 to 5 times of the internal diameter D; and the distance between the back temperature sensor and the heating element is displayed as t2, which is 10 to 30 times of the internal diameter D. During the use, the content analyzing apparatus can be cooperated with a flow meter and can be applied to detection for content of multi-phase flow of oil wells and fields and to two-phase mixture metering of other industries; the content analyzing apparatus is a straight tube section, thereby having small pressure loss, so flow regime cannot be broken and the content analyzing apparatus can be conveniently installed; and the measuring and calculation values acquired by the analyzing apparatus is free of effects of pressure, so high precision is possessed.
Description
Technical field
The present invention is a kind of two-phase mixture content analysis device, can be applicable to the detection of oilfield multiphase flow rates content, also can be applicable to the detection of relevant industries two-phase content metering.
Background technology
Oil-gas-water three-phase metering is an important process in field production management, measures accurately and grasps oil reservoir situation to oil well, formulates production decision, has important directive significance.With regard to the two-phase laminated flow densimetry that current domestic each oil field adopts, because gassiness in liquid phase is separated not thorough, very large on the impact of its accuracy of measuring, and in actual use because every mouthful of well, even same well different time, its fluid is all different with situation of giving vent to anger, and even fluctuates very large, therefore, it often can not produce a desired effect.
Summary of the invention
The invention provides a kind of novel two-phase mixture content analysis device.
A kind of content analysis device, is characterized in that, the straight tube housing cavity wall of both ends open is provided with thermofin; Shell top wall is provided with the temperature sensor at two intervals, and front temperature sensor is arranged on front portion, and rear temperature sensor is arranged on rear portion; Housing lower wall is provided with a heating element, and heating element is between former and later two temperature sensors.
Principle of work of the present invention is, different according to different medium specific heat capacity, when after two media mixing, under quantitative heat heating state, the mixing ratio that two media is different, obtaining result is exactly final heat up different, and the method is to gassiness insensitive (can not be a large amount of gas) because the specific heat capacity of gas to compare liquid very little.
Specific heat capacity formula: Q=cm Δ t
Q is heat, and c is specific heat capacity, and m is quality, and Δ t is the temperature difference
When obtaining mass rate by measuring, the temperature difference of total amount of heat that heating element produces and potpourri, can be just how many respectively by calculating the content of often kind of medium in potpourri,
Q=C1mδ1Δt+C2m（1-δ1）Δt
Q is the thermal value of unit interval, and C1 is the specific heat capacity of medium 1, and C2 is the specific heat capacity of medium 1, and m is the mass rate of unit interval, and δ 1 is the content (number percent) of medium 1, and Δ t is the temperature difference
Q is by the performance of heating element, and detecting electric current can directly obtain, and C1, C2 are dielectric constant, and m is recorded by mass flowmeter, and Δ t is the temperature difference that former and later two temperature sensors record, and now just can obtain the content of often kind of medium.
When the present invention applies, with flow measurement device with the use of; The detection of oilfield multiphase flow rates content can be applied to, also may be used for the metering solving other industry two-phase mixture, especially inaccurate to metering during liquid phase gassiness problem.The present invention contrasts with other sampling methods of tradition, and overcoming current popular densimetry affects the shortcoming large with the sampling error of sampling method by gassiness.The present invention has the function that real-time online detects, and can overcome sampling error, confidence level is higher.Apparatus of the present invention are a straight length, have the pressure loss little, do not destroy the effect of fluidised form, and easy for installation.Be not stressed with the value calculated impact measured by this analysis device, so precision is high.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present invention.
Accompanying drawing 2 is the present invention's structural representations when applying.
Temperature sensor, 4 rear temperature sensor, 5 heating elements, 6 mass flowmeters, 7 ring flanges before 1 housing, 2 thermofins, 3.
Embodiment
A kind of content analysis device, straight tube housing 1 internal chamber wall of both ends open is provided with thermofin 2; Shell top wall is provided with the temperature sensor at two intervals, and front temperature sensor 3 is arranged on front portion, and rear temperature sensor 4 is arranged on rear portion; Housing lower wall is provided with a heating element 5, and heating element is between former and later two temperature sensors.
Straight tube housing inner diameter D, front temperature sensor 3 is 0.5 times of internal diameter D to 5 times with the spacing t1 of heating element 5; Rear temperature sensor 4 is 10 times of internal diameter D to 30 times with the spacing t2 of heating element 5.
Straight tube housing both ends are provided with ring flange 7.
When the present invention uses, front end is oil water mixture import, and rear end is communicated with mass flowmeter 6 by flange 7.The course of work: potpourri is entered by import, first records temperature through front temperature sensor 3, is then heated by heating element 5 in content analysis device, then records temperature after heating to rear temperature sensor 4, eventually passes mass flowmeter 6 and records mass rate.
Housing 1 is adopted as standard steel pipe usually; Thermofin 2 thickness, according to the content analyzer determination thickness of different model specification, ensures effect of heat insulation; Medial temperature for ensureing that temperature sensor records temperature before and after heating, the distance that need determine between forward and backward temperature sensor 3,4 and heating element 5 according to flow, caliber etc.Pipeline shell internal diameter D, front temperature sensor 3 is 0.5 times of internal diameter D to 5 times with the spacing t1 of heating element 5; Rear temperature sensor 4 is 10 times of internal diameter D to 30 times with the spacing t2 of heating element 5.Because heated fluid should have upward flow phenomenon according to thermal effect, so heating element position is below pipeline, temperature sensor location is above pipeline, thus ensures that recording temperature is medial temperature.Eventually pass mass flowmeter and record mass rate, calculated by software, finally reach the object that potpourri two media measures respectively.
Claims (3)
1. a content analysis device, is characterized in that, the straight tube housing cavity wall of both ends open is provided with thermofin; Shell top wall is provided with the temperature sensor at two intervals, and front temperature sensor is arranged on front portion, and rear temperature sensor is arranged on rear portion; Housing lower wall is provided with a heating element, and heating element is between former and later two temperature sensors.
2. according to a kind of content analysis device according to claim 1, it is characterized in that, straight tube housing inner diameter D, the spacing t1 of front temperature sensor and heating element is 0.5 times of internal diameter D to 5 times; The spacing t2 of rear temperature sensor and heating element is 10 times of internal diameter D to 30 times.
3. according to a kind of content analysis device according to claim 1, it is characterized in that, straight tube housing both ends are provided with ring flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410423649.4A CN105466505A (en) | 2014-08-26 | 2014-08-26 | Content analyzing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410423649.4A CN105466505A (en) | 2014-08-26 | 2014-08-26 | Content analyzing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105466505A true CN105466505A (en) | 2016-04-06 |
Family
ID=55604455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410423649.4A Pending CN105466505A (en) | 2014-08-26 | 2014-08-26 | Content analyzing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105466505A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112461310A (en) * | 2020-12-07 | 2021-03-09 | 中国石油天然气集团有限公司 | Temperature difference flow sensor |
-
2014
- 2014-08-26 CN CN201410423649.4A patent/CN105466505A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112461310A (en) * | 2020-12-07 | 2021-03-09 | 中国石油天然气集团有限公司 | Temperature difference flow sensor |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160406 |