一种微波消解仪

Abstract

本实用新型公开了一种微波消解仪，应用于微波应用设备技术领域，包括壳体、设于所述壳体内的反应器，所述反应器包括反应腔、用于给所述反应腔加热的微波发生器和波导、设于所述反应腔外周的冷却腔、分别与所述反应腔的加压口和泄压口连接的加压系统和泄压系统、封盖于所述反应腔开口处的封盖装置、能够放置于所述反应腔内的消解罐，所述消解罐内装有载荷溶液，消解管放置于所述消解罐内；还包括能够驱动所述消解罐轴向旋转以使载荷溶液温度均匀的旋转装置。该微波消解仪使样品受热更加均匀，消解效率高，消解管不易导致爆管。

Claims

1. A microwave digestion apparatus, characterized by comprising: The device includes a housing (1), a reactor (2) disposed within the housing (1), the reactor (2) including a reaction chamber (208), a microwave generator (41) and a waveguide (42) for heating the reaction chamber (208), a cooling chamber (204) disposed on the outer periphery of the reaction chamber (208), a pressurization system (203) and a depressurization system (205) respectively connected to the pressurization port and the depressurization port of the reaction chamber (208), a cover (201) covering the opening of the reaction chamber (208), a digestion vessel (5) that can be placed in the reaction chamber (208), the digestion vessel (5) containing a load solution, and a digestion tube (6) placed in the digestion vessel (5); it also includes a rotating device that can drive the digestion vessel (5) to rotate axially to make the temperature of the load solution uniform.

2. The microwave digestion system of claim 1, wherein, The number of digestion vessels (5) is multiple, and the multiple digestion vessels (5) are placed vertically on the support (7). The digestion vessels (5) contain load solutions of different components. The digestion tube (6) is inserted into the corresponding digestion vessel (5). The inner wall of the digestion vessel (5) and the outer wall of the digestion tube (6) are spaced apart.

3. The microwave digestion system of claim 2, wherein, The bracket (7) includes an upper partition (71), a bottom plate (72) below the partition (71), and a central rod (73) connecting the partition (71) and the bottom plate (72). The partition (71) is provided with a plurality of through holes, and the center of the through holes is equidistant from the center of the central rod (73). The base plate (72) is provided with a positioning hole, which is aligned with the through hole. The digestion vessel (5) is inserted into the through hole and its bottom is supported on the positioning hole.

4. The microwave digestion system of claim 3, wherein, The rotating device includes: Two temperature sensors (206) are used to detect the temperature at both ends of the diameter of the digestion vessel (5). A rotation drive unit connected to the temperature sensor (206) that controls the rotation of the digestion vessel (5) when the temperature sensor (206) detects a temperature difference between two points.

5. The microwave digestion system of claim 4, wherein, The waveguide (42) and microwave generator (41) are located below the bottom surface of the reaction cavity (208). The base plate (72) of the support (7) is placed on the bottom surface of the reaction cavity (208). There is a gap between the outer diameter of the base plate (72) and the inner diameter of the reaction cavity (208). The rotation drive unit includes a power component located at the bottom of the reaction cavity (208) for driving the support (7) to rotate.

6. The microwave digestion system of claim 5, wherein, The waveguide (42) and microwave generator (41) are also located on the outer wall of the reaction cavity (208) to provide energy to the upper part of the reaction cavity (208).

7. The microwave digestion system of claim 5, wherein, The rotary drive unit also includes a circular track on the bottom surface of the reaction chamber (208) and a slider on the base plate (72), the slider being connected to the circular track.

8. The microwave digestion system of claim 2, wherein, The inner wall of the digestion vessel (5) is provided with a buffer gasket (62), the inner diameter of which is equal to the outer diameter of the digestion tube (6), and the digestion tube (6) is inserted into the buffer gasket (62).

9. The microwave digestion system of claim 2, wherein, The inside of the digestion tank (5) is provided with a vertical sliding groove, and the outer wall of the digestion tube (6) is provided with a sliding rail matched with the sliding groove, and the digestion tube (6) is in sliding connection with the digestion tank (5).

10. The microwave digestion system of claim 1, wherein, Further comprising a safety lock (202) for locking the cover (201) and the reaction cavity (208), the safety lock (202) is used for controlling the cover (201) to be opened when the reaction cavity (208) stops working and the internal temperature is lower than the safety temperature and the internal pressure is lower than the safety pressure.

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