CN203798656U - Integrated heating device for rock pyrolysis instrument - Google Patents
Integrated heating device for rock pyrolysis instrument Download PDFInfo
- Publication number
- CN203798656U CN203798656U CN201420227817.8U CN201420227817U CN203798656U CN 203798656 U CN203798656 U CN 203798656U CN 201420227817 U CN201420227817 U CN 201420227817U CN 203798656 U CN203798656 U CN 203798656U
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- heating chamber
- heating
- crucible
- rock
- air inlet
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses an integrated heating device for a rock pyrolysis instrument. The integrated heating device comprises a crucible ejection rod and a heating chamber, the outer wall of the heating chamber is wound with a heating wire, a heating cavity is formed in the heating chamber, an opening is formed in the lower portion of the heating cavity, a flange for sealing the opening of the heating cavity is formed in the middle of the crucible ejection rod, a hydrogen flame detector is arranged above the heating chamber, the hydrogen flame detector and the heating cavity are communicated through a current limiting hole, the upper portion and the lower portion of the lateral wall of the heating chamber are provided with an air inlet pipe and an air outlet pipe respectively, the air inlet pipe and the air outlet pipe are communicated with the heating cavity and respectively provided with a valve, a carbon dioxide adsorption pipe is further connected to the position of an inlet of the air inlet pipe, and the inner diameter of the air inlet pipe is larger than the hole diameter of the current limiting hole. By means of the structure, the rock test sample pyrolyzation and oxidization function can be conveniently completed with only one heating chamber, the structure is simplified, the integrated heating device is convenient to use and maintain, the failure rate is effectively reduced, and the analysis efficiency can be improved.
Description
Technical field
The utility model relates to rock pyrolysis equipment technical field, especially a kind of for the integral type heating arrangement on rock pyrolysis instrument.
Background technology
Rock pyrolysis instrument (Rock-Eval) is instrument very important in petroleum natural gas exploration and geochemical investigation.The principle of this instrument is: rock dust is placed in the stainless steel crucible that top and bottom is screen cloth, and crucible is first put into heating chamber A, 300 DEG C of heating 5 minutes, makes rock discharge the hydro carbons (S1) of absorption; Continue to be heated to 600 DEG C, organic matter in rock is heated and generates hydro carbons (S2).S1 and S2 are carried and send into hydrogen flame detector (FID) and analyze by nitrogen, judge adsorbed hydrocarbons amount and the raw hydrocarbon potentiality of hydrocarbon source rock according to the productive rate of S1, S2.S2 takes out together with the sample of heating wherein crucible after analyzing and finishing from heating chamber, puts into another heating chamber B, in heating chamber B, passes into air, heating at 600 DEG C, and in sample, residual organic carbon is oxidized to CO
2, by detecting CO
2productive rate learn the amount (S4) of carbon residue, and according to the productive rate of S1, S2, S4, utilize formula to calculate the content of hydrocarbon source rock total organic carbon (TOC).
The method of Present Domestic outer analysis S4 is all to utilize an independent heating chamber B, thereby make apparatus structure comparatively complicated, and crucible need to be transferred to heating chamber B from heating chamber A, as increased complex operation with manual operation, increase instrument failure rate with automatic sampler.Another problem is: when crucible in heating chamber A when taking out, must wait for that heating chamber A is cooled to below 200 DEG C, like this, make increase analysis time, reduced work efficiency.For addressing the above problem, spy has manufactured and designed the heating arrangement that has pyrolysis and oxidative function concurrently.
Summary of the invention
The purpose of this utility model is to overcome the deficiency of above-mentioned prior art, provide a kind of simple in structure, have concurrently pyrolysis and oxidative function for the integral type heating arrangement on rock pyrolysis instrument.
To achieve these goals, the technical solution adopted in the utility model is: a kind of for the integral type heating arrangement on rock pyrolysis instrument, comprise the heating chamber that is wound with heater strip on crucible push rod and outer wall, in heating chamber, be provided with the heating chamber of lower opening, on crucible push rod middle part, be provided with the flange for heated sealed chamber opening, above heating chamber, be provided with hydrogen flame detector, between hydrogen flame detector and heating chamber, be connected by metering hole, it is characterized in that: the top and the bottom of described heating chamber sidewall are provided with respectively the admission line and the outlet pipe that are communicated with heating chamber, on admission line and outlet pipe, be respectively provided with a valve, inflow point at admission line is also connected with carbon dioxide adsorption tube, the internal diameter of admission line is greater than the aperture of described metering hole.
On flange on described crucible push rod, be also provided with high-temperature resistant seal ring.
The utility model, owing to adopting said structure, only needs to use a heating chamber just can complete pyrolysis and the oxidative function of rock sample, designs simplification, and use and maintenance is all very convenient.Owing to having cancelled the transfer step of sample crucible between two heating chambers in traditional approach, effectively reduce failure rate, and can improve analysis efficiency.
Brief description of the drawings
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, the utility model is a kind of for the integral type heating arrangement on rock pyrolysis instrument, comprises the heating chamber 3 that is wound with heater strip 2 on crucible push rod 1 and outer wall, is provided with the heating chamber 4 of lower opening in heating chamber 3.Wherein, in crucible push rod 1, offer carrier gas draft tube 11, on crucible push rod 1 middle part, be provided with the flange 12 for heated sealed chamber opening, on flange, be also provided with high-temperature resistant seal ring 13; Carrier gas draft tube 11 is provided with valve 14 and is communicated with carrier gas source (nitrogen).Above heating chamber, be provided with hydrogen flame detector 5, between hydrogen flame detector 5 and heating chamber 4, be connected by metering hole 6.
Be provided with respectively admission line 7 and outlet pipe 8 in the top and the bottom of above-mentioned heating chamber sidewall; The internal diameter of admission line is greater than the aperture of metering hole.One end of admission line 7 is communicated with heating chamber 4, and the other end is used for connecting extraneous air source of the gas, is provided with valve 71 and carbon dioxide adsorption tube 72 on admission line 7.One end of outlet pipe 8 is communicated with heating chamber 4, and the other end detects for connecting the infrared detector 9 of analyzing carbon residue amount, is also provided with valve 81 on outlet pipe.In use, air is first removed airborne carbon dioxide by carbon dioxide adsorption tube 72, then enters in heating chamber through valve 71, to sample after pyrolysis carbon be oxidized, then discharged by the outlet pipe 8 of bottom.
Function and the principle of work of each parts are described with concrete experimental procedure below: wherein, S1: rock discharges the hydro carbons of absorption; S2: the generation hydro carbons that is heated of the organic matter in rock; S4: the amount of carbon residue.
1, S1, S2 process are surveyed in pyrolysis: the crucible 10 that sample is housed is placed on crucible push rod 1, and crucible push rod 1 rises, and sample is pushed in the heating chamber 4 of heating chamber, between the flange of crucible push rod 1 and heating chamber, seals by high-temperature resistant seal ring 13; Then valve-off 71, valve 81, open valve 14, sends into nitrogen to heating chamber.Now, heating chamber starts heating, and the hydro carbons that hydrocarbon source rock discharges, under the carrying of nitrogen, enters into the nozzle 51 of hydrogen flame detector (FID) by metering hole 6, measure S1, S2.
2, the process of S4 is measured in oxidation: after pyrolytic process finishes, heating chamber keeps 600 DEG C.Valve 14 is closed, valve 71, valve 81 are opened, air is admitted to heating chamber the carbon of sample is oxidized, simultaneously, the pore 52 of small part air in hydrogen flame detector nozzle, flow out. because the internal diameter of pore 52 in metering hole 6 and nozzle is less than the internal diameter of air intake and air out pipeline, and air enters the position of heating chamber on the top, side of heating chamber, more approaches metering hole, so what flow out from metering hole is pure air, does not contain the CO of the oxidized generation of sample
2thereby, ensured to contain CO
2air stream flow out from valve 81 completely, and enter infrared detector, calculate S4.
3, sample is changed: after experiment finishes, reduce the temperature of heating chamber, and valve-off 71, valve 81, valve 14, crucible push rod 1 declines, and takes off crucible 10, puts into new crucible, starts the analysis of next sample.
Finally should be noted that; above content is only in order to illustrate the technical solution of the utility model; but not restriction to the utility model protection domain; the simple modification that those of ordinary skill in the art carries out the technical solution of the utility model or be equal to replacement, does not all depart from essence and the scope of technical solutions of the utility model.
Claims (2)
1. one kind for the integral type heating arrangement on rock pyrolysis instrument, comprise the heating chamber that is wound with heater strip on crucible push rod and outer wall, in heating chamber, be provided with the heating chamber of lower opening, on crucible push rod middle part, be provided with the flange for heated sealed chamber opening, above heating chamber, be provided with hydrogen flame detector, between hydrogen flame detector and heating chamber, be connected by metering hole, it is characterized in that: the top and the bottom of described heating chamber sidewall are provided with respectively the admission line and the outlet pipe that are communicated with heating chamber, on admission line and outlet pipe, be respectively provided with a valve, inflow point at admission line is also connected with carbon dioxide adsorption tube, the internal diameter of admission line is greater than the aperture of described metering hole.
2. according to claim 1 for the integral type heating arrangement on rock pyrolysis instrument, it is characterized in that: on the flange on described crucible push rod, be also provided with high-temperature resistant seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420227817.8U CN203798656U (en) | 2014-05-06 | 2014-05-06 | Integrated heating device for rock pyrolysis instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420227817.8U CN203798656U (en) | 2014-05-06 | 2014-05-06 | Integrated heating device for rock pyrolysis instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203798656U true CN203798656U (en) | 2014-08-27 |
Family
ID=51380861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420227817.8U Withdrawn - After Issue CN203798656U (en) | 2014-05-06 | 2014-05-06 | Integrated heating device for rock pyrolysis instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203798656U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994917A (en) * | 2014-05-06 | 2014-08-20 | 中国科学院广州地球化学研究所 | Heating device used on rock pyrolysis instrument |
-
2014
- 2014-05-06 CN CN201420227817.8U patent/CN203798656U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994917A (en) * | 2014-05-06 | 2014-08-20 | 中国科学院广州地球化学研究所 | Heating device used on rock pyrolysis instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140827 Effective date of abandoning: 20160406 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140827 Effective date of abandoning: 20160406 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |