Multifunctional microwave tritium-carbon oxidation combustion device

Abstract

The utility model relates to a multifunctional microwave tritium-carbon oxidation combustion device which is characterized in that a preheating temperature zone furnace body, an oxidation combustion zone furnace body and a catalysis temperature zone furnace body are arranged in sequence along a straight line, and a quartz heating pipe penetrates through the preheating temperature zone furnace body, the oxidation combustion zone furnace body and the catalysis temperature zone furnace body; the first microwave heating device is inserted into the preheating temperature zone furnace body and fixedly connected with the preheating temperature zone furnace body, the second microwave heating device is inserted into the oxidizing combustion zone furnace body and fixedly connected with the oxidizing combustion zone furnace body, and the third microwave heating device is inserted into the catalyzing temperature zone furnace body and fixedly connected with the catalyzing temperature zone furnace body. The two ends of the quartz heating pipe are fixedly and detachably connected with the first quick-connection flange, and a first air outlet and a first air inlet are formed in the first quick-connection flange. According to the utility model, a plurality of small-diameter inner quartz heating tubes are arranged in the quartz heating tube, so that tritium and carbon of a plurality of different samples can be collected at the same time.

Description

TECHNICAL FIELD

[0001] The utility model relates to combustion detection field especially a kind of multifunctional microwave tritium carbon oxidation combustion device. BACKGROUND

[0002] In the tritium carbon oxidation combustion experiment process of biological sample (including food), it is often limited by equipment heating cavity and power, and the maximum processing amount of single sample is 100g fresh sample, and the tritium water collected after the oxidation combustion of the 100g fresh sample is distilled and purified, so that it is less.In addition, the remaining ash sample is not enough to do strontium 90.Currently, the existing device on the market can only meet the requirement of collecting tritium carbon after sample oxidation combustion, and the same sample needs to be burned to make ash sample for detecting strontium 90.

[0003] At the same time, the existing device on the market can only heat one kind of sample each time, and the experimental efficiency is low.Furthermore, the existing device uses traditional electric heating method, and the temperature rising rate is low, so that the sample spends a long time and consumes a lot of electric energy in the whole experiment process. UTILITY MODEL CONTENT

[0004] The utility model aims at solving above-mentioned problem, provides a kind of multifunctional microwave tritium carbon oxidation combustion device, solves above-mentioned problem.

[0005] A kind of multifunctional microwave tritium carbon oxidation combustion device, including: preheating temperature zone furnace body, oxidation combustion zone furnace body, catalytic temperature zone furnace body, quartz heating tube, first microwave heating device, second microwave heating device and third microwave heating device, the preheating temperature zone furnace body, oxidation combustion zone furnace body and catalytic temperature zone furnace body are sequentially arranged along straight line, the quartz heating tube passes through preheating temperature zone furnace body, oxidation combustion zone furnace body and catalytic temperature zone furnace body, the first microwave heating device is inserted into preheating temperature zone furnace body and is fixedly connected with preheating temperature zone furnace body, the second microwave heating device is inserted into oxidation combustion zone furnace body and is fixedly connected with oxidation combustion zone furnace body, the third microwave heating device is inserted into catalytic temperature zone furnace body and is fixedly connected with catalytic temperature zone furnace body, the both ends of quartz heating tube are respectively fixed and detachably connected with first quick flange, and the first quick flange is formed with first gas outlet and first gas inlet.

[0006] Further, it further includes inner quartz heating tube and second quick flange, multiple inner quartz heating tubes are located in quartz heating tube, the both ends of inner quartz heating tube respectively extend out of the through hole of the first quick flange of both ends, the both ends of inner quartz heating tube are respectively fixed and detachably connected with second quick flange, and the second quick flange is formed with second gas outlet and second gas inlet.

[0007] Further, it further includes sealing plate, and the sealing plate is fixedly and detachably connected with first quick flange, and the sealing plate is used to block the through hole.

[0008] Further, the second quick connection flange at one end of the inner quartz heating tube is formed with a second gas outlet and a second gas inlet, and the second quick connection flange at the other end is formed with two second gas inlets.

[0009] Further, a support plate is further included, and the support plate is formed with a support through hole, and the inner quartz heating tube passes through the support through hole and is attached to the inner wall of the support through hole.

[0010] Further, the first quick connection flange at one end of the quartz heating tube is formed with a first gas outlet and a first gas inlet, and the first quick connection flange at the other end is formed with two first gas inlets.

[0011] Further, the preheating temperature zone furnace body is fixedly connected with a plurality of first microwave heating devices, the oxidation combustion zone furnace body is fixedly connected with a plurality of second microwave heating devices, and the catalytic temperature zone furnace body is fixedly connected with a plurality of third microwave heating devices.

[0012] Further, a first temperature measuring device, a second temperature measuring device and a third temperature measuring device are further included, the first temperature measuring device is fixedly connected with the preheating temperature zone furnace body, the second temperature measuring device is fixedly connected with the oxidation combustion zone furnace body, the third temperature measuring device is fixedly connected with the catalytic temperature zone furnace body, and the first temperature measuring device, the second temperature measuring device and the third temperature measuring device are respectively electrically connected with a control device, and the control device is respectively electrically connected with the first microwave heating device, the second microwave heating device and the third microwave heating device.

[0013] Further, the preheating temperature zone furnace body is formed with a first connecting shell at both ends, the oxidation combustion zone furnace body is formed with a second connecting shell at both ends, the catalytic temperature zone furnace body is formed with a third connecting shell at both ends, and the two second connecting shells are fixedly connected with the first connecting shell and the third connecting shell.

[0014] Further, a condensing device, a tritium water collecting bottle, a carbon 14 collecting bottle and a rack are further included, the preheating temperature zone furnace body, the oxidation combustion zone furnace body and the catalytic temperature zone furnace body are respectively fixedly connected with the rack, the tritium water collecting bottle is located in the condensing device, the tritium water collecting bottle is connected with the gas outlet in communication through a pipeline, and the tritium water collecting bottle is connected with the carbon 14 collecting bottle in communication through a pipeline.

[0015] The utility model has the advantages that:

[0016] 1. The quartz heating tube has a large diameter, so that more samples can be loaded, and after the samples are oxidized and combusted, tritium and carbon can be normally collected, and the remaining ash samples can be used to make strontium 90;

[0017] 2. By installing a plurality of small-diameter inner quartz heating tubes in the quartz heating tube, tritium and carbon of multiple different samples can be collected at the same time;

[0018] 3. The microwave heating method ensures high heating rate with low power of the whole device, and solves the problem of low efficiency of sample radioactivity experiment. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only one embodiment of the present application, and for those skilled in the art, other drawings can be obtained from the provided drawings without creative labor.

[0020] Fig. 1 The front view structural schematic diagram of the present application;

[0021] Fig. 2 The three-dimensional structural schematic diagram of the present application;

[0022] Fig. 3 The three-dimensional structural schematic diagram of the present application;

[0023] Fig. 4 The front view and sectional view structural schematic diagram of the quartz heating tube and the inner quartz heating tube. DETAILED DESCRIPTION

[0024] The present application will be further described below in combination with the drawings and examples:

[0025] The embodiments of the present application will be described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0026] In the description of the present application, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected through intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] In the description of the utility model, need understanding is, the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and so on indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawing, just for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore can not be understood as limiting the utility model.

[0028] As shown in Figs. 1 to 4 A multifunctional microwave tritium carbon oxidation combustion device, comprising: preheating temperature zone furnace body 1, oxidation combustion zone furnace body 2, catalytic temperature zone furnace body 3, quartz heating tube 4, first microwave heating device 11, second microwave heating device 21 and third microwave heating device 31, preheating temperature zone furnace body 1, oxidation combustion zone furnace body 2 and catalytic temperature zone furnace body 3 are sequentially arranged along a straight line, quartz heating tube 4 passes through preheating temperature zone furnace body 1, oxidation combustion zone furnace body 2 and catalytic temperature zone furnace body 3, first microwave heating device 11 is inserted into preheating temperature zone furnace body 1 and is fixedly connected with preheating temperature zone furnace body 1, second microwave heating device 21 is inserted into oxidation combustion zone furnace body 2 and is fixedly connected with oxidation combustion zone furnace body 2, third microwave heating device 31 is inserted into catalytic temperature zone furnace body 3 and is fixedly connected with catalytic temperature zone furnace body 3, both ends of quartz heating tube 4 are fixedly and detachably connected with first quick flange 41, first quick flange 41 is formed with first gas outlet 42 and first gas inlet 43. The mode of microwave heating ensures that the overall power of the equipment is not large, and greatly improves the heating rate compared with the traditional electric heating mode, ensuring energy saving and time saving during the whole experimental process of the sample.

[0029] Preferably, the inner diameter of the quartz heating tube 4 is greater than or equal to 140 mm.

[0030] Further, it further comprises inner quartz heating tube 5 and second quick flange 51, a plurality of inner quartz heating tubes 5 are located inside quartz heating tube 4, both ends of inner quartz heating tube 5 respectively extend out of the through hole 411 of the first quick flange 41 at both ends, both ends of inner quartz heating tube 5 are fixedly and detachably connected with second quick flange 51, and second quick flange 51 is formed with second gas outlet 52 and second gas inlet 53. Different samples can be placed in each inner quartz heating tube 5, and each inner quartz heating tube 5 is respectively connected with different tritium water collection bottle 7 and carbon 14 collection bottle 8, so that multiple experiments can be carried out at a time.

[0031] Further, a sealing plate is fixedly and detachably connected with the first quick connection flange 41, and is used to seal the through hole 411. When the quartz heating tube 5 is not used, the sealing plate is used to seal the through hole 411 to prevent gas leakage.

[0032] Further, the second quick connection flange 51 at one end of the inner quartz heating tube 5 is provided with a second gas outlet 52 and a second gas inlet 53, and the second quick connection flange 51 at the other end is provided with two second gas inlets 53. The second gas inlet 53 on the left end of the second quick connection flange 51 is connected with oxygen, and the second gas outlet 52 is connected with the tritium water collecting bottle 7. One second gas inlet 53 on the right end of the second quick connection flange 51 is connected with oxygen, and the other second gas inlet 53 is connected with nitrogen. Two paths of oxygen and one path of nitrogen are respectively connected with the flow meter through PU pipes, and the flow meter is used to adjust the gas inlet flow rate during the experiment.

[0033] Further, a support plate 44 is provided, which is provided with a support through hole 441, and the inner quartz heating tube 5 passes through the support through hole 441 and is attached to the inner wall of the support through hole 441. The support plate 44 is used to contact the inner wall of the quartz heating tube 4, and is used to support the middle part of the inner quartz heating tube 5.

[0034] Further, the first quick connection flange 41 at one end of the quartz heating tube 4 is provided with a first gas outlet 42 and a first gas inlet 43, and the first quick connection flange 41 at the other end is provided with two first gas inlets 43. The first gas inlet 43 on the left end of the first quick connection flange 41 is connected with oxygen, and the first gas outlet 42 is connected with the tritium water collecting bottle 7. One first gas inlet 43 on the right end of the first quick connection flange 41 is connected with oxygen, and the other first gas inlet 43 is connected with nitrogen. Two paths of oxygen and one path of nitrogen are respectively connected with the flow meter through PU pipes, and the flow meter is used to adjust the gas inlet flow rate during the experiment.

[0035] Further, the preheating temperature zone furnace body 1 is fixedly connected with a plurality of first microwave heating devices 11, the oxidation combustion zone furnace body 2 is fixedly connected with a plurality of second microwave heating devices 21, and the catalytic temperature zone furnace body 3 is fixedly connected with a plurality of third microwave heating devices 31. Each furnace body uses a plurality of microwave heating devices, so that the heating speed is faster and the heating temperature in the furnace body is more uniform.

[0036] Further, the first temperature measuring device 12, the second temperature measuring device 22 and the third temperature measuring device 32 are fixedly connected with the preheating temperature zone furnace body 1, the oxidation combustion zone furnace body 2 and the catalytic temperature zone furnace body 3 respectively, and are electrically connected with the control device respectively, and the control device is electrically connected with the first microwave heating device 11, the second microwave heating device 21 and the third microwave heating device 31 respectively.

[0037] Further, the control device is a computer. The control device sets the specified temperature, and decides whether the microwave heating device of each furnace body continues to heat according to the temperature detected by the temperature measuring device.

[0038] Preferably, the computer comprises a display for setting time and temperature parameters.

[0039] Further, the preheating temperature zone furnace body 1 is formed with the first connecting shell 14 at both ends respectively, the oxidation combustion zone furnace body 2 is formed with the second connecting shell 24 at both ends respectively, the catalytic temperature zone furnace body 3 is formed with the third connecting shell 34 at both ends respectively, and the two second connecting shells 24 are fixedly connected with the first connecting shell 14 and the third connecting shell 34 respectively. The connecting shell is used for protecting the internal quartz heating tube 4 and keeping the quartz heating tube 4 warm.

[0040] Further, the condensing device 6, the tritium water collecting bottle 7, the carbon 14 collecting bottle 8 and the rack 9 are further included, the preheating temperature zone furnace body 1, the oxidation combustion zone furnace body 2 and the catalytic temperature zone furnace body 3 are fixedly connected with the rack 9 respectively, the tritium water collecting bottle 7 is located in the condensing device 6, the tritium water collecting bottle 7 is connected with the gas outlet through the pipeline, and the tritium water collecting bottle 7 is connected with the carbon 14 collecting bottle 8 through the pipeline. In one experiment, the tritium water collecting bottle 7 is connected with only one of the first gas outlet 42 and the second gas outlet 52, instead of being connected with the first gas outlet 42 and the second gas outlet 52 simultaneously.

[0041] Further, the rack 9 is connected with four universal wheels below, so as to facilitate the movement of the position of the rack 9.

[0042] Further, the first observation window 13, the second observation window 23 and the third observation window 33 are further included, and the first observation window 13, the second observation window 23 and the third observation window 33 are fixedly connected with the preheating temperature zone furnace body 1, the oxidation combustion zone furnace body 2 and the catalytic temperature zone furnace body 3 respectively, and are directed towards the quartz heating tube 4. The observation window is used for observing the position of the sample in the quartz heating tube 4 and the inner quartz heating tube 5, and whether the sample is fully combusted.

[0043] Working principle:

[0044] When the quartz heating tube 4 is used to heat the sample, the inner quartz heating tube 5 in the quartz heating tube 4 is removed, and the through hole 411 of the first quick flange 41 is closed by a sealing plate. The catalyst is placed in the quartz heating tube 4 in the catalytic temperature zone furnace body 3, and the sample is placed in the quartz heating tube 4 in the oxidation combustion zone furnace body 2. After loading, the quartz heating tube 4 is closed by the first quick flange 41, and the tritium water collection bottle 7 and the first gas outlet 42 are connected by a pipeline. Then, the preheating temperature zone furnace body 1, the oxidation combustion zone furnace body 2, and the catalytic temperature zone furnace body 3 are heated at the set temperature respectively, wherein the preheating temperature zone furnace body 1 is close to the first quick flange 41 through which nitrogen and oxygen are simultaneously introduced, for preheating the gas. The gas generated by heating and combustion of the sample enters the tritium water collection bottle 7 and the carbon 14 collection bottle 8 through the pipeline from the first gas outlet 42.

[0045] When the inner quartz heating tube 5 is used to heat, a plurality of inner quartz heating tubes 5 are inserted into the quartz heating tube 4, and each inner quartz heating tube 5 can be placed in a different sample. The catalyst is placed in the inner quartz heating tube 5 in the catalytic temperature zone furnace body 3, and the sample is placed in the inner quartz heating tube 5 in the oxidation combustion zone furnace body 2. The quartz heating tube 5 is fitted with the through hole 411, and the part of the quartz heating tube 5 that passes through the through hole 411 is fixed with the second quick flange 51. After loading, the inner quartz heating tube 5 is closed by the second quick flange 51, and the tritium water collection bottle 7 and the second gas outlet 52 of the inner quartz heating tube 5 are connected one by one by a pipeline. Then, the preheating temperature zone furnace body 1, the oxidation combustion zone furnace body 2, and the catalytic temperature zone furnace body 3 are heated at the set temperature respectively, wherein the preheating temperature zone furnace body 1 is close to the second quick flange 51 through which nitrogen and oxygen are simultaneously introduced, for preheating the gas. The gas generated by heating and combustion of the sample enters the tritium water collection bottle 7 and the carbon 14 collection bottle 8 through the pipeline from the second gas outlet 52.

[0046] The utility model is described above by way of example, but the utility model is not limited to the above specific embodiments, and any modification or modification based on the utility model belongs to the scope of the utility model claimed.

Claims

1. A multifunctional microwave tritium-carbon oxidation combustion device, characterized in that, It includes: Preheating temperature zone furnace body (1), oxidation combustion zone furnace body (2), catalytic temperature zone furnace body (3), quartz heating tube (4), first microwave heating device (11), second microwave heating device (21) and third microwave heating device (31), the preheating temperature zone furnace body (1), oxidation combustion zone furnace body (2) and catalytic temperature zone furnace body (3) are arranged in a straight line in order, the quartz heating tube (4) passes through the preheating temperature zone furnace body (1), oxidation combustion zone furnace body (2) and catalytic temperature zone furnace body (3), the first microwave heating device (11) is inserted into the preheating temperature zone furnace body (1) and is fixedly connected with the preheating temperature zone furnace body (1), the second microwave heating device (21) is inserted into the oxidation combustion zone furnace body (2) and is fixedly connected with the oxidation combustion zone furnace body (2), the third microwave heating device (31) is inserted into the catalytic temperature zone furnace body (3) and is fixedly connected with the catalytic temperature zone furnace body (3), the quartz heating tube (4) is respectively fixed and detachably connected with the first quick flange (41) at both ends, the first quick flange (41) is formed with a first gas outlet (42) and a first gas inlet (43).

2. The multifunctional microwave deuterium-carbon oxidation combustion device according to claim 1, characterized in that: It also includes inner quartz heating tube (5) and second quick flange (51), a plurality of inner quartz heating tubes (5) are located inside the quartz heating tube (4), the inner quartz heating tube (5) is respectively fixed and detachably connected with the second quick flange (51) at both ends, the second quick flange (51) is formed with a second gas outlet (52) and a second gas inlet (53).

3. The multifunctional microwave deuterium-carbon oxidation combustion device according to claim 2, characterized in that: It also includes a sealing plate, the sealing plate is fixedly and detachably connected with the first quick flange (41), and the sealing plate is used for plugging the through hole (411).

4. The multifunctional microwave deuterium-carbon oxidation combustion device according to claim 2, characterized in that: The second quick flange (51) at one end of the inner quartz heating tube (5) is formed with a second gas outlet (52) and a second gas inlet (53), and the second quick flange (51) at the other end is formed with two second gas inlets (53).

5. The multifunctional microwave deuterium-carbon oxidation combustion device according to claim 2, characterized in that: It also includes a support plate (44), the support plate (44) is formed with a support through hole (441), the inner quartz heating tube (5) passes through the support through hole (441) and is attached to the inner wall of the support through hole (441).

6. The multifunctional microwave deuterium-carbon oxidation combustion device according to claim 1, characterized in that: The first quick flange (41) at one end of the quartz heating tube (4) is formed with a first gas outlet (42) and a first gas inlet (43), and the first quick flange (41) at the other end is formed with two first gas inlets (43).

7. The multifunctional microwave deuterium-carbon oxidation combustion device according to claim 1, characterized in that: The preheating temperature zone furnace body (1) is fixedly connected with a plurality of first microwave heating devices (11), the oxidation combustion zone furnace body (2) is fixedly connected with a plurality of second microwave heating devices (21), and the catalytic temperature zone furnace body (3) is fixedly connected with a plurality of third microwave heating devices (31).

8. The multifunctional microwave deuterium-carbon oxidation combustion device according to claim 1, characterized in that: It also includes first temperature measuring device (12), second temperature measuring device (22) and third temperature measuring device (32), the first temperature measuring device (12) is fixedly connected with preheating temperature zone furnace body (1), the second temperature measuring device (22) is fixedly connected with oxidation combustion zone furnace body (2), the third temperature measuring device (32) is fixedly connected with catalytic temperature zone furnace body (3), the first temperature measuring device (12), second temperature measuring device (22) and third temperature measuring device (32) are electrically connected with control device respectively, the control device is electrically connected with first microwave heating device (11), second microwave heating device (21) and third microwave heating device (31) respectively.

9. The multifunctional microwave deuterium-carbon oxidation combustion device according to claim 1, characterized in that: The preheating temperature zone furnace body (1) is formed with first connecting shell (14) at both ends respectively, the oxidation combustion zone furnace body (2) is formed with second connecting shell (24) at both ends respectively, the catalytic temperature zone furnace body (3) is formed with third connecting shell (34) at both ends respectively, two second connecting shell (24) are fixedly connected with first connecting shell (14) and third connecting shell (34) respectively.

10. The multifunctional microwave deuterium-carbon oxidation combustion device according to claim 1, characterized in that: It also includes condensing device (6), tritium water collecting bottle (7), carbon 14 collecting bottle (8) and rack (9), the preheating temperature zone furnace body (1), oxidation combustion zone furnace body (2) and catalytic temperature zone furnace body (3) are fixedly connected with rack (9) respectively, the tritium water collecting bottle (7) is located in condensing device (6), the tritium water collecting bottle (7) is communicated with gas outlet through pipeline, the tritium water collecting bottle (7) is communicated with carbon 14 collecting bottle (8) through pipeline.

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