CN2840072Y - Pyrolysis comprehensive estimating instrument - Google Patents
Pyrolysis comprehensive estimating instrument Download PDFInfo
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- CN2840072Y CN2840072Y CN 200520026482 CN200520026482U CN2840072Y CN 2840072 Y CN2840072 Y CN 2840072Y CN 200520026482 CN200520026482 CN 200520026482 CN 200520026482 U CN200520026482 U CN 200520026482U CN 2840072 Y CN2840072 Y CN 2840072Y
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- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The utility model relates to an electrical pyrolysis comprehensive evaluating instrument, which is characterized in that a monolithic computer in which a control program for controlling the operation of the instrument is stored is arranged in the circuit of the instrument; the peripheral circuit of the CPU of the monolithic computer comprises an A/D converting circuit composed of a 16 bit serial A/D converter, and an D/A output circuit composed of a highly integrated D/A converting chip which is a DAC of SPI serial input and 12 bit voltage output, and one chip can be provided with 4 path outputs; a temperature control system comprises a heating furnace filament, a thermocouple signal conditioning and digital converting circuit, a control logic interface and a D/A converting circuit, and the D/A converting circuit is connected with a voltage regulating module which controls the temperature of the heating furnace filament; the monolithic computer for storing the program also receives a control instruction from an upper PC to carry out operation. The utility model has the advantages of newly adopted technology of the system, new chip, high degree of system integration, high reliability, high precision of analysis, convenient installation and maintenance, and compact structure of the instrument.
Description
Technical field
The utility model relates to and adopts the rock pyrolysis analytical approach, carries out the rock stratum detection by quantitative, explains the instrument of hydrocarbon zone, particularly a kind of pyrolysis comprehensive evaluation instrument.
Background technology
It is vital link in the whole petroleum exploration and development with the brill technology that well logging is one, its objective is the discovery hydrocarbon zone, and estimates the checking hydrocarbon show zones.Well logging has developed into from the manual operations in past, artificial qualitative description uses multiple instrument, equipment, the collection data acquisition, handles and be interpreted as the oil exploration technology of one.
Technique of geochemical logging is the technical method of applied geophysics chemistry, carries out the well logging new technology of rock stratum detection by quantitative, explanation hydrocarbon zone.Groundization and special well logging technology are the well logging technology that just developed in recent years, grows up, with well logging, compound logging relatively, have that the data precision of analysis height, speed are fast, easy to operate, the equipment easy care, analyze with the sample source extensively, inputs/output is than height, economic benefit remarkable advantages.
It is on-the-spot that geochemical logging not only is applied to exploration, and be applied to the oil and gas development field, is used for the evaluation of Water Flooding Layer and remaining oil.At some elephants of China, carried out and comprised that rock pyrolysis analysis, quantitative fluorescence analysis, rock pore ooze the analysis and research work of projects such as analysis, rock sample spectral analysis, pyrolysis-gas chromatographic analysis.
Existing pyrolysis comprehensive evaluation instrument D/A output circuit is not seen the high integrated D/A conversion chip of employing, and circuit complexity, loose is not seen in addition yet and adopted monolithic thermopair digital quantizer to carry out the mode that Thermocouple Temperature Signal is amplified, nursed one's health.
Summary of the invention
The purpose of this invention is to provide a kind of circuit structure compactness, comprise the pyrolysis comprehensive evaluation instrument of unique temperature control system.Instrument comprises single-chip microcomputer, the communication interface that is attached thereto, steering logic interface, D/A change-over circuit, I/O interface, signal condition and A/D change-over circuit; By communication interface be communicated with upper PC, by the input and output of I/O interface gauge tap amount, it is characterized in that: comprise a single-chip microcomputer that contains the control program of storing the control instrument operation in the equipment circuit, the singlechip CPU peripheral circuit comprises the A/D change-over circuit of being made up of 16 bits serial A/D converter, and FID micro current amplifier signal input part with it connects; D/A conversion chip by high integration is formed the D/A output circuit, and this chip can be with 4 tunnel outputs for the DAC of SPI serial input, 12 voltage outputs, chip; Temperature control system comprises heating furnace silk, thermocouple signal conditioning and digital conversion circuit, steering logic interface and D/A change-over circuit, the D/A change-over circuit is connected with voltage regulating module, by the temperature of voltage regulating module control heating furnace silk, stored program single-chip microcomputer is also accepted upper PC instruction control and is operated.
The utility model has the advantages that system adopts other not have the new technology, the new chip that use with quasi-instrument, the level of integrated system height, the reliability height, the analysis precision height, installation and maintenance are easy, the apparatus structure compactness.
Description of drawings
Fig. 1 is the utility model circuit structure diagram, and book extract accompanying drawing as an illustration.
Fig. 2 is the temperature control system block diagram.
Fig. 3 is IC chip and temperature detection circuit theory figure.
Fig. 4 is the CPU workflow diagram.
Embodiment
Below in conjunction with accompanying drawing the embodiment of the invention is elaborated.As shown in Figure 1 to Figure 3, comprise a single-chip microcomputer that contains the control program of storing the control instrument operation in the equipment circuit, the singlechip CPU peripheral circuit comprises the A/D change-over circuit of being made up of 16 bits serial A/D converter, and FID micro current amplifier signal input part with it connects;
The simulating signal of FID ion flow is delivered to CPU through signal condition and A/D conversion again through the micro current amplifier amplification;
Pyrolysis oven temperature T 1, detecting device (heat block) temperature T 2, sample feeding rod temperature T 3 become digital signal to deliver to CPU through the steering logic interface by the thermocouple signal conditioning with digital conversion circuit collection, treatment conversion;
CPU according to initialize program to signal handle, finish system control, with upper PC communication.
D/A conversion chip by high integration is formed the D/A output circuit, and this chip can be with 4 tunnel outputs for the DAC of SPI serial input, 12 voltage outputs, chip;
Temperature control system comprises heating furnace silk, thermocouple signal adjustment and digital conversion circuit, steering logic interface and D/A change-over circuit, the D/A change-over circuit is connected with voltage regulating module, and stored program single-chip microcomputer is by the temperature of D/A change-over circuit and voltage regulating module control heating furnace silk.
Temperature sensing circuit: amplify and digital quantizer by monolithic K type thermopair, finish the detection conditioning and the digital conversion of thermocouple signal.This device is the monolithic thermopair digital quantizer of a complexity, and inside has Signal Regulation amplifier, 12 analog/digital heat-transmission galvanic couple converter, cold junction compensation sensing and correction, digitial controller, 1 SPI compatibility interface and 1 relevant logic control.Adopt this chip to finish thermocouple signal amplification, cold junction compensation, linearization and digitizing output function, simplified the Application Design of thermopair greatly in built-in field.
Stored program single-chip microcomputer is also accepted upper PC instruction control and is operated and make each feature board realize that function is as follows:
Input-motherboard comprises: input analog signal conditioner and A/D conversion; Thermocouple signal conditioning and digital conversion; CPU, system's control, communication function; D/A conversion and temperature control.
The switching value input/output board comprises: the I/O interface; The input of switching value signal; The output of switching value signal.
Pyrolysis comprehensive evaluation instrument CPU workflow as shown in Figure 4, carry out the establishment of program according to known and technical parameter that record, what show is a program of software control instrument CPU work, by this program process, automatically control the operation of pyrolysis comprehensive evaluation instrument, the utility model embodiment is illustrated, can be reproduced according to professional knowledge by those of ordinary skills.
Claims (1)
1. a pyrolysis comprehensive evaluation instrument comprises single-chip microcomputer, the communication interface that is attached thereto, steering logic interface, D/A change-over circuit, I/O interface, signal condition and A/D change-over circuit; By communication interface be communicated with upper PC, by the input and output of I/O interface gauge tap amount, it is characterized in that: comprise a single-chip microcomputer that contains the control program of storing the control instrument operation in the equipment circuit, the singlechip CPU peripheral circuit comprises the A/D change-over circuit of being made up of 16 bits serial A/D converter, and FID micro current amplifier signal input part with it connects; D/A conversion chip by high integration is formed the D/A output circuit, and this chip is the DAC of SPI serial input, 12 voltage outputs, chip belt 4 tunnel outputs; Temperature control system comprises heating furnace silk, thermocouple signal conditioning and digital conversion circuit, steering logic interface and D/A change-over circuit, the D/A change-over circuit is connected with voltage regulating module, by the temperature of voltage regulating module control heating furnace silk, stored program single-chip microcomputer is also accepted upper PC instruction control and is operated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520026482 CN2840072Y (en) | 2005-07-01 | 2005-07-01 | Pyrolysis comprehensive estimating instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520026482 CN2840072Y (en) | 2005-07-01 | 2005-07-01 | Pyrolysis comprehensive estimating instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2840072Y true CN2840072Y (en) | 2006-11-22 |
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ID=37428053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520026482 Expired - Fee Related CN2840072Y (en) | 2005-07-01 | 2005-07-01 | Pyrolysis comprehensive estimating instrument |
Country Status (1)
| Country | Link |
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| CN (1) | CN2840072Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2950094A4 (en) * | 2013-01-24 | 2017-02-22 | Shimadzu Corporation | Sample heating device and elemental analyzer |
-
2005
- 2005-07-01 CN CN 200520026482 patent/CN2840072Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2950094A4 (en) * | 2013-01-24 | 2017-02-22 | Shimadzu Corporation | Sample heating device and elemental analyzer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061122 Termination date: 20110701 |