CN2472223Y - Sulfur inspector - Google Patents
Sulfur inspector Download PDFInfo
- Publication number
- CN2472223Y CN2472223Y CN 01237237 CN01237237U CN2472223Y CN 2472223 Y CN2472223 Y CN 2472223Y CN 01237237 CN01237237 CN 01237237 CN 01237237 U CN01237237 U CN 01237237U CN 2472223 Y CN2472223 Y CN 2472223Y
- Authority
- CN
- China
- Prior art keywords
- temperature
- control device
- temperature control
- electric heating
- sulfur
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a sulfur detection device, which comprises a pure oxygen combustion chamber, a sulfur dioxide infrared detection device connected with the pure oxygen combustion chamber and a central processing unit connected with the infrared detection device; a combustion chamber temperature control device and an electric heating control device are also arranged in the sulfur detection device, and are connected with the interface of the single chip-controlled circuit board; the earth terminal of the temperature setting potentiometer of the temperature control device is connected in series with an operation mode switcher; the operation mode switcher comprises a voltage divider resistor and a controllable switch in parallel connection; the controllable switch is connected with the central processing unit interface. The utility model has the advantages that the switching between preheating and operation is achieved, and the service life of the combustion chamber and the electric heat pipe are prolonged.
Description
The utility model relates to a kind of checkout equipment, the Sulfur inspector of sulfur content in particularly a kind of test samples.
In the prior art, a kind of by the U.S. Leco Corporation infrared automatic sulphur meter of S-144DR type of Development and Production in recent years, the sulphuric dioxide infrared detecting device that is provided with the pure oxygen burning chamber and is communicated with the pure oxygen burning chamber, infrared detecting device links to each other with a central processing unit, it also is provided with chamber temperature control device and the electric heating control device that is connected with Single-chip Controlling wiring board interface, and the thermoelectric corner of temperature control equipment and the electric heating tube of electric heater unit are arranged in the firing chamber.The ultimate principle of its test is: sample burns under the pure oxygen environment of 1350 degree Celsius, makes sulfide fully be oxidized to SO
2After, measure its concentration through the infrared detection pond, thereby measure the sulfur content in the sample.By fully oxidation, be in the high-temperature region in order to ensure sulfide the sample air long period, therefore keep the constant high temperature of firing chamber most important the accuracy and the stability of measurement result.The shortcoming of its existence is, the ceramic body of firing chamber often is between the working temperature of room temperature and 1350 degrees centigrade and changes in the routine work, because the temperature difference of two states is very big, the ceramic body of firing chamber usually damages because of jump in temperature, so in use, lack shutdown as far as possible and sharply change the influence that brings, but increased energy consumption so again, cause electric heating tube and firing chamber hot soak condition simultaneously and the premature aging damage to reduce furnace temperature.
The utility model is at the deficiencies in the prior art, has proposed a kind ofly to prolong the serviceable life of firing chamber and electric heating tube and do not influence the Sulfur inspector of the measurement range and the measuring accuracy of existing equipment.
The purpose of this utility model reaches by the following technical programs, a kind of Sulfur inspector, the sulphuric dioxide infrared detecting device that is provided with the pure oxygen burning chamber and is communicated with the pure oxygen burning chamber, infrared detecting device links to each other with a central processing unit, it also is provided with chamber temperature control device and the electric heating control device that is connected with Single-chip Controlling wiring board interface, the thermoelectric corner of temperature control equipment and the electric heating tube of electric heater unit are arranged in the firing chamber, be characterized in: the temperature of temperature control equipment is set the earth terminal of potentiometer and is also connected with a duty switch, the duty switch is that a divider resistance and a gate-controlled switch compose in parallel, and gate-controlled switch inserts the central processing unit interface.The utility model is set the potentiometer place duty switch of connecting in temperature, the duty switch disconnects, play the effect of dividing potential drop, then be added at the bottom of the voltage drop of Control for Kiln Temperature circuit, current transformer induces the heating current of electric heating tube, pass to the CPU processor by the Single-chip Controlling wiring board, pass to the current value that computing machine demonstrates electric heating tube after treatment.Thermoelectric corner is converted into the variation of temperature of firing chamber the variation of voltage, electric current by Single-chip Controlling control, adjustment electric heating tube changes, the temperature of control firing chamber, when the duty switch is connected, enter duty, the utility model has increased the preheat function to the firing chamber, realizes the switching of preheating and duty, reduce furnace temperature and sharply change the influence that brings, prolonged the serviceable life of firing chamber and electric heating tube.
The purpose of this utility model can also come further to reach by the following technical programs, and the divider resistance in its duty switch is an adjustable resistance.Temperature when regulating preheating by the size of regulating the divider resistance resistance.
The utility model compared with prior art, transform by circuit existing temperature control equipment, set the potentiometer place duty switch of connecting in temperature, increased the preheat function of firing chamber, realize the switching of preheating and duty, improved the stability of measurement data, reduce furnace temperature and sharply change the influence that brings, prolong the serviceable life of firing chamber and electric heating tube, and do not influenced the Sulfur inspector of the measurement range and the measuring accuracy of existing equipment.
Fig. 1 is the annexation synoptic diagram of each parts of the utility model.
Fig. 2 switches electrical schematic diagram for temperature control, state.
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
Embodiment, as Fig. 1, shown in 2, Sulfur inspector described in the utility model, the sulphuric dioxide infrared detecting device 1 that is provided with pure oxygen burning chamber 2 and is communicated with pure oxygen burning chamber 2, infrared detecting device 1 links to each other with a central processing unit 5, it also is provided with chamber temperature control device 6 and the electric heating control device 7 that is connected with Single-chip Controlling wiring board 8 interfaces, the thermoelectric corner 3 of temperature control equipment 6 and the electric heating tube 4 of electric heater unit 7 are arranged in the firing chamber 2, the temperature of temperature control equipment 6 is set the earth terminal of potentiometer 9 and is also connected with a duty switch 11, duty switch 11 is that a divider resistance 10 and a gate-controlled switch 12 compose in parallel, and gate-controlled switch 12 inserts the interface of central processing unit 5.The utility model still utilizes the operation interface in the former instrumentation program, and just the Alarm Relay in the normal toolbar diagnostic menu renames pre-heat as, by the click to pre-heat, changes preheat mode and duty.During start work, pre-heat in the toolbar diagnostic menu in the operation interface of click control computer carries out preheating to the firing chamber, the duty switch disconnects, and the voltage that is added to the Control for Kiln Temperature circuit is 1.3V, and this moment, corresponding control furnace temperature was 650 degrees centigrade.Current transformer induces the heating current of electric heating tube, passes to the CPU processor by the Single-chip Controlling wiring board, passes to the current value that computing machine demonstrates electric heating tube after treatment.Thermoelectric corner is converted into the variation of voltage with the variation of temperature of firing chamber, changes by Single-chip Controlling control, the electric current of adjusting electric heating tube, thus the temperature of control firing chamber.When the utility model carries out work, click the pre-heat in the toolbar diagnostic menu in the operation interface of control computer again, this moment, the duty switch separated, and the voltage that is added to the Control for Kiln Temperature circuit is 6.6V, and this moment, corresponding control furnace temperature was 1350 degrees centigrade.Divider resistance in its duty switch is an adjustable resistance.Temperature when regulating preheating by the size of regulating the divider resistance resistance.This reality is novel by to the transformation of original Sulfur inspector, and having realized does not influence again on the basis of the measurement range of original instrument and precision not destroying original structure, carries out the switching of preheating and two kinds of functions of duty.Reduce furnace temperature and sharply change the influence that brings, prolonged the serviceable life of firing chamber and electric heating tube.
Claims (2)
1, a kind of Sulfur inspector, the sulphuric dioxide infrared detecting device (1) that is provided with pure oxygen burning chamber (2) and is communicated with pure oxygen burning chamber (2), infrared detecting device (1) links to each other with a central processing unit (5), it also is provided with chamber temperature control device (6) and the electric heating control device (7) that is connected with Single-chip Controlling wiring board (8) interface, the thermoelectric corner (3) of temperature control equipment (6) and the electric heating tube (4) of electric heater unit (7) are arranged in the firing chamber (2), it is characterized in that: the temperature of temperature control equipment (6) is set the earth terminal of potentiometer (9) and is also connected with a duty switch (11), duty switch (11) is that a divider resistance (10) composes in parallel with a gate-controlled switch (12), and gate-controlled switch (12) inserts the interface of central processing unit (5).
2, Sulfur inspector according to claim 1 is characterized in that: the divider resistance of (11) (10) is an adjustable resistance in the duty switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01237237 CN2472223Y (en) | 2001-04-05 | 2001-04-05 | Sulfur inspector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01237237 CN2472223Y (en) | 2001-04-05 | 2001-04-05 | Sulfur inspector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2472223Y true CN2472223Y (en) | 2002-01-16 |
Family
ID=33650069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01237237 Expired - Fee Related CN2472223Y (en) | 2001-04-05 | 2001-04-05 | Sulfur inspector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2472223Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089916A (en) * | 2014-07-16 | 2014-10-08 | 长沙开元仪器股份有限公司 | Sulfur measuring system |
| CN115980254A (en) * | 2022-10-26 | 2023-04-18 | 河北邯峰发电有限责任公司 | Method for measuring total sulfur in coal by infrared spectroscopy based on tungsten trioxide catalysis |
-
2001
- 2001-04-05 CN CN 01237237 patent/CN2472223Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089916A (en) * | 2014-07-16 | 2014-10-08 | 长沙开元仪器股份有限公司 | Sulfur measuring system |
| CN115980254A (en) * | 2022-10-26 | 2023-04-18 | 河北邯峰发电有限责任公司 | Method for measuring total sulfur in coal by infrared spectroscopy based on tungsten trioxide catalysis |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |