CN210322543U - Electromagnetic heating high-pressure digestion instrument - Google Patents
Electromagnetic heating high-pressure digestion instrument Download PDFInfo
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- CN210322543U CN210322543U CN201921171389.0U CN201921171389U CN210322543U CN 210322543 U CN210322543 U CN 210322543U CN 201921171389 U CN201921171389 U CN 201921171389U CN 210322543 U CN210322543 U CN 210322543U
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Abstract
The utility model provides an electromagnetic heating high-pressure digestion instrument, which comprises a main case, a control box and a high-pressure digestion tank; an instrument bottom plate, a stainless steel deep hole plate, a hydraulic lifter and a power distributor are arranged in the mainframe box; the instrument bottom plate is arranged at the bottom inside the main case, and the upper surface of the instrument bottom plate is provided with a plurality of electromagnetic heating coils; the stainless steel deep hole plate is positioned above the instrument bottom plate and connected to the bottom of the main case through a hydraulic lifter, and each hole in the stainless steel deep hole plate corresponds to each electromagnetic heating coil on the instrument bottom plate; the power supply distributor is arranged inside the instrument bottom plate; the high-pressure digestion tank is detachably arranged in the hole of the stainless steel deep hole plate; the control box is connected with the power supply distributor; the technology realizes rapid thermal conversion, temperature control and pressure control in the conventional digestion heating process. The hydraulic lifting structure is adopted, so that the rapid temperature and pressure control of the auxiliary reaction tank can be realized rapidly, and the safety in the digestion process is ensured.
Description
Technical Field
The utility model belongs to the technical field of the analysis experiment equipment and specifically relates to a novel appearance is cleared up to electromagnetic heating high pressure is related to.
Background
The main devices which are generally required to carry out wet digestion on a sample in the current detection laboratory are a microwave digestion instrument, a graphite digestion instrument and the like. The microwave digestion instrument adopts microwaves as heating units in the using process, and has the advantages of high temperature rising speed and difficulty in uniform temperature control due to different microwave absorption conditions of samples with different polarities in the same batch, so that simultaneous digestion cannot be realized. The microwave digestion instrument carries out high-pressure closed digestion under the conditions of temperature and pressure control. However, metal materials are strictly forbidden to be used in the microwave field, and generally only nonpolar organic materials can be used as containers, but the temperature-resistant and pressure-resistant indexes of the organic materials which can be applied in the microwave field are limited, so that the digestion temperature and the digestion pressure of microwave digestion are greatly limited, and digestion of partially insoluble samples, such as ores, alloys, organic materials and other samples, cannot be realized. Meanwhile, the limited use of metal materials in the microwave field also makes the sensor made of partial metal difficult to apply. Therefore, potential safety hazards such as pipe explosion after overpressure of the digestion pipe are caused.
The graphite digestion instrument is also a conventional method for digesting a sample by a wet method at present, the graphite is heated quickly and has the characteristic of uniform heating, but the heating speed is slow, the temperature control difficulty is high, the temperature flushing and other conditions are easily caused, and at present, the full-automatic digestion can be carried out only by adopting a normal-pressure digestion method and adding configurations such as automatic acid supplementation and the like. The atmospheric digestion easily causes the loss of volatile elements in the digestion tube, and the digestion time is much longer than that of the high-pressure closed digestion method.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides an electromagnetic heating high-pressure digestion instrument, which aims to realize the conventional digestion of rapid thermal transformation, temperature control and pressure control in the heating process in the pretreatment of a high-pressure and high-flux sample. The reaction tank can be used for sample digestion pretreatment in a laboratory, can also be used in the operation processes of sample synthesis, sample extraction and the like, adopts a hydraulic lifting structure to quickly control the temperature and the pressure of the auxiliary reaction tank, and ensures the safety in the digestion process.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
an electromagnetically heated high pressure digestion apparatus comprising:
the device comprises a main case, a control case and a high-pressure digestion tank;
an instrument bottom plate, a stainless steel deep hole plate, a hydraulic lifter and a power distributor are arranged in the mainframe box;
the instrument bottom plate is arranged at the bottom inside the main case, and a plurality of electromagnetic heating coils are arranged on the upper surface of the instrument bottom plate;
the stainless steel deep hole plate is positioned above the instrument bottom plate, the stainless steel deep hole plate is connected to the bottom of the main case through the hydraulic lifter, and each hole in the stainless steel deep hole plate corresponds to each electromagnetic heating coil on the instrument bottom plate;
the power supply distributor is arranged inside the instrument bottom plate;
the high-pressure digestion tank is detachably arranged in the hole of the stainless steel deep hole plate;
the control box is connected with the power supply distributor.
Preferably, the control box is provided with a display and touch screen and a main control system circuit.
Preferably, the electromagnetic heating coil is coated with a high temperature and corrosion resistant material.
Preferably, each of the electromagnetic heating coils is connected to a power distributor.
Preferably, the surface of the stainless steel deep hole plate is subjected to corrosion prevention treatment.
Preferably, the number of the hydraulic lifters is 4, the fixed end of each hydraulic lifter is respectively arranged at one corner of the bottom in the mainframe box, and the lifting end of each hydraulic lifter is respectively arranged at one corner of the lower surface of the stainless steel deep hole plate.
Preferably, the temperature control device further comprises a temperature detection sensor probe arranged on the surface of the stainless steel deep hole plate, and the temperature detection sensor probe is connected with the main controller.
Preferably, still including setting up the optical ranging sensor at top in the mainframe box, optical ranging sensor is used for measuring the lift position of stainless steel deep hole board, optical ranging sensor's output and main control unit are connected.
Preferably, still including setting up the pressure monitoring sensor at the top in the mainframe box, pressure monitoring sensor is used for detecting the inside pressure variation value of high pressure digestion jar, pressure monitoring sensor is connected with main control unit.
Preferably, the air exhaust heat radiator is arranged at the top in the main case, the air exhaust heat radiator is used for exchanging air inside the main case with outside, and the air exhaust heat radiator is connected with the main controller.
The technical scheme has the following beneficial effects: the utility model discloses a novel electromagnetic heating high pressure clears up appearance new equipment belongs to the experimental facilities field, and this equipment mainly used laboratory carries out the sample and clears up the pretreatment process, also can be used to in the operation processes such as sample synthesis, sample extraction. The equipment can be used for high-pressure high-flux sample pretreatment, and the technology realizes rapid thermal conversion, temperature control and pressure control in the conventional digestion heating process. The hydraulic lifting structure is adopted, so that the rapid temperature and pressure control of the auxiliary reaction tank can be realized rapidly, and the safety in the digestion process is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of an electromagnetic heating high pressure digestion apparatus of the present invention;
description of reference numerals: 1. an instrument base plate; 2. a main machine box body; 3. an air inlet of the box body; 4. an electromagnetic heating coil; 5. a temperature detection sensor probe; 6. a stainless steel deep hole plate; 7. high-pressure digestion tank; 8. a hydraulic lifter; 9. an optical ranging sensor; 10. a pressure monitoring sensor; 11. an exhaust radiator; 12. the main controller is connected with a lead; 13. a display and touch screen; 14. a main control system circuit; 15. a power distributor; 16. and a control box.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of the present invention:
an electromagnetically heated high pressure digestion apparatus comprising:
the main case 2, the control case 16 and the high-pressure digestion tank 7;
an instrument bottom plate 1, a stainless steel deep hole plate 6, a hydraulic lifter 8 and a power distributor 15 are arranged in the mainframe box 2;
the instrument bottom plate 1 is arranged at the bottom inside the main case 2, and a plurality of electromagnetic heating coils 4 are arranged on the upper surface of the instrument bottom plate 1; the stainless steel deep hole plate 6 is positioned above the instrument bottom plate 1, the stainless steel deep hole plate 6 is connected to the bottom of the main case 2 through the hydraulic lifter 8, and each hole on the stainless steel deep hole plate 6 corresponds to each electromagnetic heating coil 4 on the instrument bottom plate 1; the high-pressure digestion tank 7 is detachably arranged in the hole of the stainless steel deep hole plate 6; each electromagnetic heating coil 4 heats each high-pressure digestion tank 7, and the stainless steel deep hole plate 6 can be used as a fixed support and a protective outer sleeve of the high-pressure digestion tank 7 and also used as an electromagnetic induction heating conductor and conducts heat to the high-pressure digestion tank 7.
The power supply distributor 15 is arranged inside the instrument base plate 1;
the control box 16 is connected to the power distributor 15.
Preferably, the control box 16 is provided with a display and touch screen 13 and a main control system circuit 14.
Preferably, the electromagnetic heating coil 4 is coated with a high temperature and corrosion resistant material to ensure that the electromagnetic heating coil 4 is not corroded by corrosive gas.
Preferably, each electromagnetic heating coil 4 is connected to a power distributor 15, so as to provide uniform power for the PID control system.
Preferably, the surface of the stainless steel deep hole plate 6 is subjected to anti-corrosion treatment, so that the service life of the stainless steel deep hole plate 6 is prolonged.
Preferably, the number of the hydraulic lifters 8 is 4, the fixed end of each hydraulic lifter 8 is respectively arranged at one corner of the bottom in the mainframe box 2, the lifting end of each hydraulic lifter 8 is respectively arranged at one corner of the lower surface of the stainless steel deep hole plate 6, the hydraulic lifter 8 ensures that the plane of the stainless steel deep hole plate 6 is always kept horizontal, and simultaneously, after receiving a lifting command, the stainless steel deep hole plate 6 is smoothly lifted or dropped to a preset position.
Preferably, the temperature detection device also comprises a temperature detection sensor probe 5 arranged on the surface of the stainless steel deep hole plate 6, wherein the output end of the temperature detection sensor probe 5 is connected with the main controller 16, and detected temperature data is transmitted to the main controller 16 in time, so that the temperature of the stainless steel deep hole plate is ensured not to exceed the requirement of a main control system.
Preferably, still including setting up the optical ranging sensor 9 at top in the mainframe box, optical ranging sensor 9 is used for measuring stainless steel deep hole board 6's lift position, optical ranging sensor 9's output is connected with main control unit for measure the position that stainless steel deep hole board 6 goes up and down and arrive, and can be when stainless steel deep hole board 6 does not reach predetermined position, send alarm signal to main control unit 16.
Preferably, the high-pressure digestion tank further comprises a pressure monitoring sensor 10 arranged at the top in the main case, the pressure monitoring sensor 10 is used for detecting a pressure change value inside the high-pressure digestion tank 7, the pressure monitoring sensor 10 is connected with the main controller 16, can sense the pressure change value inside the high-pressure digestion tank 7, and can feed back a pressure relief condition inside the high-pressure digestion tank 7 to the main controller 16.
Preferably, the air exhaust heat radiator 11 is arranged at the top in the main case, the air exhaust heat radiator 11 is used for exchanging air inside the main case with the outside, the air exhaust heat radiator 11 is connected with the main controller 16, the air exhaust heat radiator 11 is started and operated all the time in the working process of the whole machine, after the hydraulic lifter 8 is lifted, the air exhaust amount of the air exhaust heat radiator 11 is automatically increased, and air flows through the bottom of the stainless steel deep hole plate 6 to rapidly cool the round pipe at the bottom of the stainless steel deep hole plate 6. The exhaust fan adopts a round air inlet, and the upper edge of the round air inlet is higher than the plane of the raised stainless steel deep hole plate 6.
Use the utility model discloses a device's specific embodiment as follows: the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can better understand the present invention and apply it to experimental work, but the examples are not intended to limit the present invention.
The attached figure is a complete electromagnetic heating high-pressure digestion instrument, and the instrument bottom plate 1 is used for fixing an instrument box body and related internal parts and has a load-bearing function. The utility model aims at carrying out safe digestion under the high temperature high pressure condition to the difficult sample of dispelling.
The instrument main machine box body 2 is also a shell of the whole machine, and the box body air inlet 3 is positioned at the side of the main machine box body 2. The instrument bottom plate 1 is positioned at the bottommost part of the whole instrument and is also a bearing part of the main machine. The electromagnetic heating coil 4, the temperature detection sensor probe 5, the stainless steel deep hole plate 6, the high-pressure digestion tank 7, the hydraulic lifter 8, the optical distance measurement sensor 9, the pressure monitoring sensor 10, the power distributor 15 and other parts are positioned in the main machine box body 2 according to the figure.
The display and touch screen 13 and the main control system circuit 14 are fixedly installed in a separate control box 16, and are connected with a power distributor 15 in the main machine case 2 through a main controller connecting wire 12.
And placing the sample to be digested and a proper amount of strong acid into a high-pressure digestion tank 7 for sealing, and then placing the sample and the proper amount of strong acid into the holes of the stainless steel deep hole plate 6, wherein the high-pressure digestion tank 7 has the functions of pressure relief and self protection after overpressure.
When the program starts to run, the stainless steel deep hole plate 6 is horizontally placed at the lowest point of the hydraulic lifter 8, and the bottom position of the round pipe at the bottom of the stainless steel deep hole plate 6 is just positioned in the electromagnetic heating coil 4.
When the program starts, the distance between the stainless steel deep hole plate 6 and the optical sensor 9 is measured by the optical distance measuring sensor 9 installed on the top of the instrument main unit casing 2. The distance is confirmed to ensure that the bottom position of the round tube at the bottom of the stainless steel deep hole plate 6 is just positioned in the electromagnetic heating coil 4. If the distance confirmation result shows that the position of the stainless steel deep hole plate 6 does not reach the standard, an error message is displayed on the display and touch screen 13, and the main control system prohibits the electromagnetic heating coil 4 from obtaining power supply from the power distributor 15.
After setting parameters of program operation, including temperature gradient, pressure limit, time, exhaust air volume and the like, on the display and touch screen 13, the host computer starts to operate the program. The program run command is sent to the relevant control unit and power distributor 15 via the main control system circuit 14. And the digestion program starts to run according to the set temperature gradient heating curve.
After the electromagnetic heating coil 4 receives power from the power distributor 15, the electromagnetic heating coil 4 starts to heat the bottom circular tube of the stainless steel deep hole plate 6. The stainless steel deep hole plate 6 can be used as a fixed support and a protective outer sleeve of the high-pressure digestion tank 7 and is also an electromagnetic induction heating conductor. After the round pipe position at the bottom of the stainless steel deep hole plate 6 is heated, the heat is transferred into the high-pressure digestion tank 7.
After the high-pressure digestion pipe 7 is heated, the reaction substrates in the tank body start to react. Because the high-pressure digestion tank 7 is designed in a sealing structure, the pressure in the tank body rises along with the reaction.
The operation of the temperature control system mainly depends on the temperature detection sensor probe 5 connected on the stainless steel deep hole plate 6 to feed back the temperature data of the heated stainless steel deep hole plate 6 to the main control system. The PID control circuit built in the main control system circuit 14 controls the power supply of the electromagnetic heating coil 4 according to the set gradient heating curve. Thereby limiting the temperature of the stainless steel deep hole plate within the range of the set temperature rising curve.
Along with the continuous progress of the reaction in the high-pressure digestion tube 7, the pressure in the high-pressure reaction tank 7 gradually rises, and in the whole pressure rising process, the pressure monitoring sensor also continuously transmits the internal pressure change value data of all the high-pressure digestion tanks 7 to the display and touch screen 13. When the pressure in the high-pressure digestion pipe 7 exceeds a pressure limit value set on the display and touch screen 13 before the reaction starts, the main control system starts overpressure alarm and gives a starting signal to the hydraulic lifter 8. And the power supply to the electromagnetic heating coil 4 is cut off by the power distributor 15. The temperature control system stops operating. The timer on the temperature gradient heating curve is suspended.
After the hydraulic lifter 8 obtains a starting signal and starts to lift the stainless steel deep hole plate 6, the air exhaust radiator 11 introduces the outside room temperature air into the instrument main unit box 2 from the box air inlet 3. After the outside normal atmospheric temperature air is introduced, the stainless steel deep hole plate 6 is cooled, along with the cooling of the stainless steel deep hole plate 6, the temperature of the high-pressure digestion tank 7 inserted into the stainless steel deep hole plate can be reduced, and the reduction of the temperature can bring the pressure reduction of the high-pressure digestion tank 7.
When the pressure in the high-pressure digestion tank 7 is reduced to be lower than the pressure limit value set on the display and touch screen 13, the main control system circuit 14 gives a starting signal to the hydraulic lifter 8 to guide the stainless steel deep hole plate 6 to descend to the initial position of the stainless steel deep hole plate 6 at the beginning of the heating program. The temperature control system starts to operate and the main control system 14 gives a start signal to the power distributor 15 to turn on the power supply to the electromagnetic heating coil 4. And timing is continued on the temperature gradient heating curve.
After the temperature gradient heating curve is finished, the display and touch screen 13 displays that the whole instrument enters the high-pressure digestion tank 7 and enters the cooling process.
The cooling is controlled by a main control system. After the main control system sends a signal to the hydraulic lifter 8 to obtain a starting signal and starts to lift the stainless steel deep hole plate 6 to a cooling fixed position, the air exhaust radiator 11 introduces outside room temperature air into the instrument main unit box 2 from the box air inlet 3. After the introduction of the outside air, the stainless steel deep hole plate 6 is cooled. The temperature of the stainless steel deep hole plate 6 is obtained by the temperature detection sensor probe 5, when the temperature of the stainless steel deep hole plate 6 is reduced to normal temperature, the display and touch screen 13 displays that a digestion completion signal is sent out, and the whole sample digestion program is completed.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. An electromagnetic heating high pressure digestion instrument, comprising:
a main case (2), a control case (16) and a high-pressure digestion tank (7);
an instrument bottom plate (1), a stainless steel deep hole plate (6), a hydraulic lifter (8) and a power distributor (15) are arranged in the mainframe box (2);
the instrument bottom plate (1) is arranged at the bottom inside the main case (2), and a plurality of electromagnetic heating coils (4) are arranged on the upper surface of the instrument bottom plate (1);
the stainless steel deep hole plate (6) is positioned above the instrument bottom plate (1), the stainless steel deep hole plate (6) is connected to the bottom of the main case (2) through the hydraulic lifter (8), and each hole in the stainless steel deep hole plate (6) corresponds to each electromagnetic heating coil (4) in the instrument bottom plate (1);
the power supply distributor (15) is arranged inside the instrument base plate (1);
the high-pressure digestion tank (7) is detachably arranged in the hole of the stainless steel deep hole plate (6);
the control box (16) is connected with the power supply distributor (15).
2. An electromagnetically heated high-pressure digestion apparatus according to claim 1,
the control box (16) is provided with a display and touch screen (13) and a main control system circuit (14).
3. An electromagnetically heated high-pressure digestion apparatus according to claim 1,
the electromagnetic heating coil (4) is coated by a high-temperature-resistant and corrosion-resistant material.
4. An electromagnetically heated high-pressure digestion apparatus according to claim 1,
each electromagnetic heating coil (4) is respectively connected with a power supply distributor (15).
5. An electromagnetically heated high-pressure digestion apparatus according to claim 1,
the surface of the stainless steel deep hole plate (6) is subjected to anti-corrosion treatment.
6. An electromagnetically heated high-pressure digestion apparatus according to claim 1,
hydraulic pressure riser (8) set up to 4, the stiff end of each hydraulic pressure riser (8) sets up respectively a corner of bottom in mainframe box (2), the lift end of each hydraulic pressure riser (8) sets up respectively on a corner of stainless steel deep hole board (6) lower surface.
7. The electromagnetically heated high pressure digestion apparatus according to claim 1, further comprising:
the temperature detection sensor probe (5) is arranged on the surface of the stainless steel deep hole plate (6), and the temperature detection sensor probe (5) is connected with the main controller.
8. The electromagnetically heated high pressure digestion apparatus according to claim 1, further comprising:
the optical ranging sensor (9) of top is in the mainframe box, optical ranging sensor (9) are used for measuring the lift position of stainless steel deep hole board (6), the output and the main control unit of optical ranging sensor (9) are connected.
9. The electromagnetically heated high pressure digestion apparatus according to claim 1, further comprising:
the pressure monitoring sensor (10) is arranged at the top in the main case, the pressure monitoring sensor (10) is used for detecting a pressure change value inside the high-pressure digestion tank (7), and the pressure monitoring sensor (10) is connected with the main controller.
10. The electromagnetically heated high pressure digestion apparatus according to claim 1, further comprising:
the air exhaust radiator (11) is arranged at the top in the main case, the air exhaust radiator (11) is used for exchanging air inside the main case with the outside, and the air exhaust radiator (11) is connected with the main controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921171389.0U CN210322543U (en) | 2019-07-24 | 2019-07-24 | Electromagnetic heating high-pressure digestion instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921171389.0U CN210322543U (en) | 2019-07-24 | 2019-07-24 | Electromagnetic heating high-pressure digestion instrument |
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| CN210322543U true CN210322543U (en) | 2020-04-14 |
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| CN201921171389.0U Active CN210322543U (en) | 2019-07-24 | 2019-07-24 | Electromagnetic heating high-pressure digestion instrument |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112129616A (en) * | 2020-09-30 | 2020-12-25 | 河北华清环境科技集团股份有限公司 | Graphite digestion pretreatment system and method |
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2019
- 2019-07-24 CN CN201921171389.0U patent/CN210322543U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112129616A (en) * | 2020-09-30 | 2020-12-25 | 河北华清环境科技集团股份有限公司 | Graphite digestion pretreatment system and method |
| CN112129616B (en) * | 2020-09-30 | 2022-02-08 | 河北华清环境科技集团股份有限公司 | Graphite digestion pretreatment system and method |
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