CN2527998Y - Portable microcomputer far-infrared digester - Google Patents
Portable microcomputer far-infrared digester Download PDFInfo
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- CN2527998Y CN2527998Y CN 02228705 CN02228705U CN2527998Y CN 2527998 Y CN2527998 Y CN 2527998Y CN 02228705 CN02228705 CN 02228705 CN 02228705 U CN02228705 U CN 02228705U CN 2527998 Y CN2527998 Y CN 2527998Y
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- furnace body
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- temperature
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Abstract
The utility model relates to a digesting instrument, in particular to a portable microcomputer remote infrared digesting instrument, which comprises a digesting oven and a microcomputer control circuit, the digesting oven is provided with an outer oven body where an inner oven body is sleeved, one or more layers of location barriers that digesting tube can be inserted into are arranged in the inner oven body and are located below the lower layers of location plates, a digestion hot resource is arranged on the chassis, a temperature sensor is arranged on the digesting chassis or wall, an exhaust condensing mechanism is arranged on the upper cover of the upper end of the digesting oven body or at the opening of the upper end of the digesting tube. The digesting instrument has light weight, low price, and high automation degree, the utility model is very applicable for being applied in national grass-root labs and country.
Description
(1) technical field, the utility model relate to a kind of digestion instrument, particularly relate to a kind of Portable Microprocessor Based far infrared digesting-apparatus.
(2) background technology, the digestion instrument is one of common instrument equipment of Chemical Analysis Lab, be widely used in the worker, chemical examination in the agricultural production is measured, macromolecular substances can be decomposed into small molecular weight material so that the analyzing and testing examination, present like product both domestic and external is more, but all price is higher, instrument is heavy, should not in vast rural area, China basic unit laboratory, apply, DK6 digestion instrument as Italian Velp company, every price reaches 22632 yuan, and the MW520 micro-wave digestion device price of MERCK of Germany is up to 48500 yuan, the MK-III microwave dissolver in China Shanghai, price also reaches 42500 yuan, the LNK872 type of will the calculating digester of domestic lower price, price is 4980 yuan every, heats with resistance wire, can not realize quick test, and weight is up to 20kg, carries to move very inconveniently, and above-mentioned these like products are difficult in the vast rural area, China basic unit laboratory and promote the use of.
(3) utility model content, the purpose of this utility model be, designs a kind of in light weightly, can realize test fast, and price is low, can popularize the Portable Microprocessor Based far infrared digesting-apparatus of use in vast basic unit laboratory and rural area.
The technical solution of the utility model is:
A kind of Portable Microprocessor Based far infrared digesting-apparatus, contain digesting, microcomputer control circuit, digesting contains external furnace body suit inner furnace body, the one to multiple layer grid spacer of plug-in mounting digestion tube is installed in inner furnace body,, is equipped with on the chassis and clears up thermal source in the bottom of lower floor's grid spacer, on chassis or inner furnace body inwall, temperature sensor is housed, on digestion body of heater upper end, covers or the digestion tube upper port is equipped with the exhaust condensing mechanism.
Microcomputer control circuit is gathered change-over circuit by single-chip microcomputer and peripheral temperature thereof, the temperature adjustment control circuit, and supervisory keyboard, power circuit is formed, microcomputer singlechip U
4Can use AT89C51, AT89C52,8051,8052, GMS97L51, a kind of in MCS-51 such as the 97L52 series unit sheet machine, the electronic bridge measurement circuit that the temperature acquisition change-over circuit is made up of the temperature sensor and the resistance of two symmetric designs is amplified the measured temperature signal by operational amplifier, by A/D conversion chip U
3Be TLC0832 or TLC0834 and microcomputer singlechip U
4Pin P
12, P
1.3, P
14Connect respectively, the temperature adjustment control circuit adopts the P of pulse width modulation mode by microcomputer singlechip
22The defeated pulse signal of interface is sent into transistor base, and collector connects+5V, connects a resistance again and connects the solid-state relay positive pole, emitter connects the solid-state relay negative terminal, connect a resistance between the collector and emitter, solid-state relay exchanges end and clears up the thermal source series connection to civil power, the SW of supervisory keyboard
1Thermometric, SW
3Adjust+, SW
5The timing button is by plug J
1KEY, an end respectively with single-chip microcomputer P
00, P
01, P
02Pin connects, the other end all with P
26Pin connects, SW
2If temperature, SW
4Adjust-, SW
6Confirm button respectively with P
00, P
01, P
02Connect, the other end all with P
27Connect, power circuit is the low pressure reduction integrated package of pressure-stabilizing U of resistance-capacitance depressurization full-wave rectification
5, model is that TPS7101 and peripheral cell are formed, output+5V DC voltage, and to single-chip microcomputer, temperature acquisition change-over circuit, the temperature adjustment control circuit provides voltage, J
2For showing output interface, connect display, its pin 1 connects+5V, and 2 and 3 pin meet single-chip microcomputer P
20, P
21, pin 4 ground connection, J
3Be remote alarm interface, device taking alarm, its pin 1 connects+5V, and pin 3 meets the P of single-chip microcomputer
22
The external furnace body skin is a metal shell, can be right cylinder or water chestnut cylinder, nexine is a thermofin, adopt insulation material, inner furnace body is sleeved in the heat-insulation layer inside surface, inner furnace body and grid spacer, the chassis all adopts ceramic material to make, on having a temperature sensor to be loaded on to clear up chassis under the pore over against grid spacer, have projection to support one to multiple layer grid spacer on the inner furnace body wall, the exhaust condensing mechanism has the swan-neck or the spiral pipe that turn to 180 °, swan-neck or spiral pipe pass open-top receptacle, its lower port is communicated with digestion tube or inner furnace body, and is sealed and matched with digestion tube upper port or loam cake, and the bend pipe upper port can be down, near container bottoms, at external furnace body upper end jug, the supporting pad angle is equipped with in lower end, external furnace body bottom surface, and loam cake is equipped with handle.
The utlity model has useful good effect:
(1) this digestion instrument volume is little, in light weight, is easy to carry about with one to be fit to the universal use in vast rural area, China basic unit laboratory.Weight has only 1.2kg, and is very light, is about 1/8 of external lighter similar instruments weight, is about domestic light weight 1/16 with quasi-instrument; The sample number is minimum to reach 0.3～0.4 for weight/clear up, and external low homogeneous data is 1.67, and domestic is 1.1.
(2) this digestion instrument belongs to high-performance, low price, digestion single sample shared instrument price (price/clear up sample number) is minimum, 1000 yuan of every less thaies of this digestion instrument price, price/clear up the sample number less than 250 yuan, what external like product was lower also reaches 3772 yuan, what domestic like product was lower is 276 yuan, this digestion instrument is cleared up thermal source and is used quartzy far infrared heater, quick heating, thermal efficiency height has improved test speed, shorten the test duration, be highly suitable for China basic unit laboratory and vast rural area is applied.
(3) this digestion instrument uses micro computer implementation procedure temperature control, and temperature (room temperature～420 ℃) and constant temperature time can be set arbitrarily in wide temperature range, temperature control accurately, reliable.
(4) popularization and application of this digestion instrument will apply fertilizers scientifically to the fast measuring of China's rural area soil fertility and realization and have bigger practical significance.
(4) description of drawings:
One of Fig. 1 digesting structural representation
The digestion thermal source of Fig. 2 digesting and temperature sensor scheme of installation
Two of Fig. 3 digesting structural representation
One of Fig. 4 grid spacer structural representation
Two of Fig. 5 grid spacer structure mark intention
One of Fig. 6 temperature acquisition change-over circuit synoptic diagram
Two of Fig. 7 temperature acquisition change-over circuit synoptic diagram
Fig. 8 microcomputer singlechip and thermoregulation circuit synoptic diagram
Fig. 9 power circuit and supervisory keyboard structural representation
(5) embodiment:
Embodiment one, referring to Fig. 1,2,4,5,6,8,9, among the figure, 1 supporting pad angle for the installation of digesting outer bottom, be generally three, uniform being loaded on the outer bottom, 2 is the thermofin on the digesting outer bottom, makes with insulation material, as asbestos etc., the outside is a metal material, is shaped as circle, is stainless steel material, 3 for being installed on the chassis on the thermofin of external furnace body bottom surface, use stupalith, 8 bolts, 4 the thermals source of clearing up for installing on the chassis 3 for chassis 3 and external furnace body bottom surface are connected and fixed, present embodiment adopts the far infrared quartz pipe, 9 for being installed in temperature sensor A and the B on the chassis, A, among the B one be installed in grid spacer digestion tube placed hole 20 under, be close to digestion tube bottom surface outer wall, another is installed on the chassis 3 between two digestion tubes, 5 for the perpendicular wall of digesting external furnace body, is the cylinder metal material, available stainless steel, external furnace body metal outer wall 5 upper ends dress handle 16, about each one, 6 is heat-insulation layer, uses asbestos material, 7 is the external furnace body loam cake, on cover and be equipped with handle 19, by the 17 and 18 exhaust condensing mechanisms of forming, wherein 17 is a bend pipe, bend pipe 17 passes worn-out mouthful container 18, its lower port and inner furnace body 10 is communicated with, and with loam cake 7 sealing and fixing, the upper end of bend pipe 17 turns to 180 °, mouth down, near the inner bottom surface of container 18, inner furnace body 10 and external furnace body heat-insulation layer suit are made with stupalith, the inside surface of inner furnace body 10 has projection 13, the grid spacer 11,14 that support is made with stupalith is a locating slot, has the through hole 20 of laying digestion tube 15 in grid spacer 11.
By Fig. 6,8,9 form microcomputer control circuit, and figure center 1 is temperature acquisition A/D change-over circuit, has designed the two-way symmetric circuit, wherein one the tunnel gathers the digestion solution temperature, and digestive environments temperature is gathered on another road, uses R
1, R
3And R
7(temperature sensor), R
4, and use R
2, R
5And R
8(temperature sensor), R
6Each forms bridge circuit respectively by transport and placing device U
1A, U
1B, promptly the TLC4502 integrated package amplifies collecting temperature signal, R
3, R
4, and R
5, R
6Public termination+5V, R
1, R
7And R
2, R
8Common end grounding, R
4, R
7And R
6, R
8Common end grounding, R
4, R
7And R
6, R
8Common port meets transport and placing device U1A respectively, U1B, the in-phase end of TLC4502, and R
1, R
3And R
2, R
5Public termination backward end, U1A, the output terminal of U1B meet A/D conversion U respectively
3(TLC0832) pin 2,3, U
3Pin 1 meet single-chip microcomputer U
4AT89C51 pin P
1.1, pin 4 ground connection, U
3Pin 8 connect+5V, pin 7,6,5 meets single-chip microcomputer U respectively
4The pin P of AT89C51
12, P
13, P
14
+ 5V is through R
12Connect the EA/VP pin of 89C51, C
1, C
2Common point one end ground connection in parallel, another termination crystal resonator meets single-chip microcomputer U respectively
4X
1, X
2Pin ,+5V meets C
3Meet R
13Ground connection, C
3, R
13Common point meets RESET pin, J
3Interface device taking alarm, J
3Pin 1 connects+5V, and pin 3 meets P
23, J
2Be output interface, connect display, J
2Pin 4 ground connection, pin 1 connects+5V, pin 2,3, meets P respectively
20, P
21, frame 3 is temperature adjustment control circuit, triode G
1Base stage meets the P of 89C51
22Pin, collector connect+and 5V meets R again
15Meet U
9The solid-state relay anode, emitter meets U
9Negative terminal, U
9The serial connection digestion of interchange end thermal source, i.e. far infrared quartz pipe R
22Connect civil power ,+5V is respectively with R
9, R
10, R
11Meet U
4Pin P
00, P
01, P
02, meet keyboard interface J simultaneously again respectively
1 Pin 1,2,3, the pin 4,5 of KEY meet P respectively
26, P
27, keyboard, SW1 measures, the SW2 thermometric, the SW3 adjustment+, the SW5 timing, an end meets J respectively
1 Interface pin 1,2,3, the other end all meet J
1Pin 4, SW2 establishes temperature, the SW4 adjustment-, SW6 confirms button, an end meets J respectively
1The pin 1,2,3 of KEY interface, the other end all meet J
1Pin 5.
Embodiment two, referring to Fig. 2, and 3,4,5,7,8,9 in the present embodiment, and the representative same meaning that numbering is identical with embodiment one does not repeat.The place that some is different is described as follows: the digesting structure is substantially with embodiment one, and a bit not being both does not have loam cake, and the exhaust condensing mechanism is directly installed on digestion tube 15 upper port.In temperature collection circuit, increase relay J K, JK D in parallel
2, one termination+5V, another termination triode G
2Collector, G
2Grounded emitter, G
2Base stage is through R
10Meet the P of AT89C51
1.5Pin, another is along separate routes through R
9Connect+5V, the JK moving contact connects two output terminals of transport and placing device of temperature collection circuit respectively.
Claims (3)
1. Portable Microprocessor Based far infrared digesting-apparatus, contain digesting, microcomputer control circuit, it is characterized in that: digesting contains external furnace body suit inner furnace body, the one to multiple layer grid spacer of plug-in mounting digestion tube is installed in inner furnace body,, is equipped with on the chassis and clears up thermal source in the bottom of lower floor's grid spacer, on chassis or inner furnace body inwall, temperature sensor is housed, on digestion body of heater upper end, covers or the digestion tube upper port is equipped with the exhaust condensing mechanism.
2. digestion instrument according to claim 1 is characterized in that: microcomputer control circuit, gather change-over circuit by single-chip microcomputer and peripheral temperature thereof, and the temperature adjustment control circuit, supervisory keyboard, power circuit is formed, microcomputer singlechip U
4Can use AT89C51, AT89C52,8051,8052, GMS97L51, a kind of in MCS-51 such as the 97L52 series unit sheet machine, the electronic bridge measurement circuit that the temperature acquisition change-over circuit is made up of the temperature sensor and the resistance of two symmetric designs is amplified the measured temperature signal by operational amplifier, by A/D conversion chip U
3Be TLC0832 or TLC0834 and microcomputer singlechip U
4Pin P
12, P
13, P
14Connect respectively, the temperature adjustment control circuit adopts the P of pulse width modulation mode by microcomputer singlechip
22The defeated pulse signal of interface is sent into transistor base, and collector connects+5V, connects a resistance again and connects the solid-state relay positive pole, emitter connects the solid-state relay negative terminal, connect a resistance between the collector and emitter, solid-state relay exchanges end and clears up the thermal source series connection to civil power, the SW of supervisory keyboard
1Thermometric, SW
3Adjust+, SW
5The timing button is by plug J
1KEY, an end respectively with single-chip microcomputer P
00, P
01, P
02Pin connects, the other end all with P
26Pin connects, SW
2If temperature, SW
4Adjust-, SW
6Confirm button respectively with P
00, P
01, P
02Connect, the other end all with P
27Connect, power circuit is the low pressure reduction integrated package of pressure-stabilizing U of resistance-capacitance depressurization full-wave rectification
5, model is that TPS7101 and peripheral cell are formed, output+5V DC voltage, and to single-chip microcomputer, temperature acquisition change-over circuit, the temperature adjustment control circuit provides voltage, J
2For showing output interface, connect display, its pin 1 connects+5V, and 2 and 3 pin meet single-chip microcomputer P
20, P
21, pin 4 ground connection, J
3Be remote alarm interface, device taking alarm, its pin 1 connects+5V, and pin 3 meets the P of single-chip microcomputer
22
3. digestion instrument according to claim 1 and 2, it is characterized in that: external furnace body is outer to be metal shell, can be right cylinder or water chestnut cylinder, nexine is a thermofin, adopt insulation material, inner furnace body is sleeved in the heat-insulation layer inside surface, inner furnace body and grid spacer, chassis all adopt ceramic material to make, on having a temperature sensor to be loaded on to clear up chassis under the pore over against grid spacer, there is projection to support one to multiple layer grid spacer on the inner furnace body wall, the exhaust condensing mechanism has the swan-neck or the spiral pipe that turn to 180 °, and swan-neck or spiral pipe pass open-top receptacle, and its lower port is communicated with digestion tube or inner furnace body, and be sealed and matched with digestion tube upper port or loam cake, the bend pipe upper port can be down, and close container bottoms is at external furnace body upper end jug, the supporting pad angle is equipped with in lower end, external furnace body bottom surface, and loam cake is equipped with handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02228705 CN2527998Y (en) | 2002-03-18 | 2002-03-18 | Portable microcomputer far-infrared digester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02228705 CN2527998Y (en) | 2002-03-18 | 2002-03-18 | Portable microcomputer far-infrared digester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2527998Y true CN2527998Y (en) | 2002-12-25 |
Family
ID=33705188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02228705 Expired - Fee Related CN2527998Y (en) | 2002-03-18 | 2002-03-18 | Portable microcomputer far-infrared digester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2527998Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102313668A (en) * | 2011-08-25 | 2012-01-11 | 上海新拓分析仪器科技有限公司 | Microwave digestion furnace chamber |
| CN102713557A (en) * | 2009-11-03 | 2012-10-03 | 7685297加拿大有限公司 | Systems and methods for preparing samples for chemical analysis |
| CN103223320A (en) * | 2013-04-24 | 2013-07-31 | 上海天科化工检测有限公司 | Balance pressurization type high efficiency digestion apparatus |
| CN103278373A (en) * | 2013-04-15 | 2013-09-04 | 济南海能仪器股份有限公司 | Graphite-based digestion device and control method thereof |
| CN103683980A (en) * | 2013-12-17 | 2014-03-26 | 广东瑞德智能科技股份有限公司 | Electric cooker control circuit with simplified direct-current power supply structure |
| CN106198175A (en) * | 2016-08-25 | 2016-12-07 | 西安西北有色地质研究院有限公司 | A kind of sample ashing device of fast heating intelligent temperature control |
| US9844782B2 (en) | 2013-06-21 | 2017-12-19 | Coldblock Technologies Inc. | Systems and methods for preparing samples for chemical analysis using a cooled digestion zone |
| CN108709792A (en) * | 2018-07-06 | 2018-10-26 | 山东华盛天同标准技术服务有限公司 | A kind of detection food heavy metal heating resolution automatic control device |
-
2002
- 2002-03-18 CN CN 02228705 patent/CN2527998Y/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10073018B2 (en) | 2009-11-03 | 2018-09-11 | Coldblock Technologies Inc. | Systems and methods for preparing samples for chemical analysis |
| CN102713557B (en) * | 2009-11-03 | 2015-04-15 | 7685297加拿大有限公司 | Systems and methods for preparing samples for chemical analysis |
| CN102713557A (en) * | 2009-11-03 | 2012-10-03 | 7685297加拿大有限公司 | Systems and methods for preparing samples for chemical analysis |
| US8955399B2 (en) | 2009-11-03 | 2015-02-17 | 7685297 Canada Inc. | Systems and methods for preparing samples for chemical analysis |
| CN102313668A (en) * | 2011-08-25 | 2012-01-11 | 上海新拓分析仪器科技有限公司 | Microwave digestion furnace chamber |
| CN102313668B (en) * | 2011-08-25 | 2013-03-20 | 上海新拓分析仪器科技有限公司 | Microwave digestion furnace chamber |
| CN103278373B (en) * | 2013-04-15 | 2015-09-30 | 济南海能仪器股份有限公司 | Graphite counteract appearance and control method thereof |
| CN103278373A (en) * | 2013-04-15 | 2013-09-04 | 济南海能仪器股份有限公司 | Graphite-based digestion device and control method thereof |
| CN103223320A (en) * | 2013-04-24 | 2013-07-31 | 上海天科化工检测有限公司 | Balance pressurization type high efficiency digestion apparatus |
| CN103223320B (en) * | 2013-04-24 | 2015-02-18 | 上海天科化工检测有限公司 | Balance pressurization type high efficiency digestion apparatus |
| US9844782B2 (en) | 2013-06-21 | 2017-12-19 | Coldblock Technologies Inc. | Systems and methods for preparing samples for chemical analysis using a cooled digestion zone |
| CN103683980A (en) * | 2013-12-17 | 2014-03-26 | 广东瑞德智能科技股份有限公司 | Electric cooker control circuit with simplified direct-current power supply structure |
| CN103683980B (en) * | 2013-12-17 | 2019-04-26 | 广东瑞德智能科技股份有限公司 | A kind of control circuit of electric rice cooker of simplified direct current supply structure |
| CN106198175A (en) * | 2016-08-25 | 2016-12-07 | 西安西北有色地质研究院有限公司 | A kind of sample ashing device of fast heating intelligent temperature control |
| CN106198175B (en) * | 2016-08-25 | 2018-11-09 | 西安西北有色地质研究院有限公司 | A kind of sample ashing device of fast heating intelligent temperature control |
| CN108709792A (en) * | 2018-07-06 | 2018-10-26 | 山东华盛天同标准技术服务有限公司 | A kind of detection food heavy metal heating resolution automatic control device |
| CN108709792B (en) * | 2018-07-06 | 2023-09-12 | 方圆标志检验检测(山东)有限公司 | Automatic control device is cleared up in heating of detection food heavy metal |
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|---|---|---|---|
| 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 |