CN103175387A - Vacuum microwave drying oven - Google Patents

Abstract

The invention relates to heating equipment, in particular to a vacuum microwave drying oven. The vacuum microwave drying oven comprises an oven body including a containing cavity, an oven cover, a material tray, a control panel, an intake tube, an exit tube and an induced draft fan. The oven cover is provided with a first circular groove and a second circular groove, a sealing ring is arranged in the first circular groove in an embedded connection mode, and an elastic metal net is arranged in the second circular groove in an embedded connection mode. A microwave generator and a control circuit are arranged in the oven body; the material tray is disposed in the containing cavity and is connected with a motor through a rotary shaft; an electromagnetic valve is arranged on the intake tube; one end of the exit tube is communicated with the containing cavity, and the other end of the exit tube is connected with the induced draft fan; a one-way valve is arranged on the exit tube; a back plate of the containing cavity is a screen plate with meshes, a condenser pipe is arranged behind the screen plate, and the diameter of the mesh is smaller than or equal to 3 mm. The vacuum microwave drying oven overcomes the defects that traditional heating equipment cannot provide a vacuum environment, drying is slow, drying is not complete and uneven, vapor produced in drying cannot be discharged timely and the like. By means of the vacuum microwave drying oven, certain advantages are achieved.

Description

A kind of vacuum microwave drying case

Technical field

The present invention relates to a kind of firing equipment, especially a kind of vacuum microwave drying case.

Background technology

When some materials are heated, often need to guarantee the water content after dry materials and need Fast Heating avoiding the loss of nutriment, but existing firing equipment can't provide a vacuum environment mostly, rate of drying is slow, drying is not thorough; Utilize microwave to carry out dry equipment to material though have some, but there are the problems such as the even and microwave from leakage of uneven drying in these equipment more, cause materials quality to descend and unfavorable device operator healthy, thereby existing microwave dryer also exist steam that drying goes out in time to discharge to cause dry halfway problem in addition.

Summary of the invention

The present invention is intended to address the above problem, a kind of vacuum microwave drying case is provided, it has overcome that traditional heating equipment can't provide that heating in vacuum environmental drying speed is slow, dry not thoroughly, uneven drying is even and the dry steam that goes out such as can't in time discharge at the drawback, and its technical scheme that adopts is as follows:

a kind of vacuum microwave drying case, comprise the casing with container cavity, case lid, material tray, control panel, air inlet pipe, escape pipe and air-introduced machine, described case lid and casing are rotationally connected, offer first ring connected in star and the second annular groove on the described case lid face relative with casing, in described first ring connected in star, interlocking has sealing ring, the flexible wire netting of interlocking in described the second annular groove, the area that described first ring connected in star surrounds is greater than container cavity longitudinal cross-section area, the area that the area that described the second annular groove surrounds surrounds greater than the first ring connected in star, be provided with microwave generator and control circuit in described casing, described material tray be located in container cavity and by rotating shaft with in be located at bottom half motor be connected, material tray can rotate under the drive of motor and so can make heating material even, described microwave generator is located at the right side of container cavity, described control panel is electrically connected to control circuit, described air inlet pipe is provided with the magnetic valve of controlling its break-make, described air inlet pipe communicates with container cavity, described escape pipe one end communicates with container cavity, the other end is connected with air-introduced machine, described escape pipe is provided with the check valve of opening to the air-introduced machine direction from container cavity only, surround the backplate of container cavity for opening meshed sieve plate, described sieve plate back is provided with the condenser pipe of vertical setting, the aperture≤3mm of described mesh, and described sieve plate is made of metal.

On the technique scheme basis, the aperture of described mesh is 2.5mm.

The present invention has following advantage: easy to use, the heating environment of a vacuum can be provided, utilize heating using microwave, firing rate is fast, thoroughly dry, rotation by material tray can make dry materials even, and the effect by sieve plate and condenser pipe and can guarantee that to the restriction of mesh aperture on sieve plate the steam that drying goes out in time discharges has been avoided the water of having discharged is heated repeatedly.

Description of drawings

Fig. 1: structural representation of the present invention (with the sieve plate biopsy cavity marker devices);

Fig. 2: sieve plate of the present invention face structural representation;

Description of drawings:

1. casing, 2. container cavity, 3. case lid, 4. first ring connected in star, 5. the second annular groove, 6. sieve plate, 7. condenser pipe, 8. material tray, 9. control panel, 10. mesh, 11. air inlet pipe, 12. magnetic valves, 13. escape pipes, 14. lift pumps, 15. check valves,

The specific embodiment

The invention will be further described below in conjunction with accompanying drawing and example:

as depicted in figs. 1 and 2, a kind of vacuum microwave drying case, comprise the casing 1 with container cavity 2, case lid 3, material tray 8, control panel 9, air inlet pipe 11, escape pipe 13 and air-introduced machine 14, described case lid 3 is rotationally connected with casing 1, offer first ring connected in star 4 and the second annular groove 5 on described case lid 3 face relative with casing 1, in described first ring connected in star 4, interlocking has sealing ring, sealing ring can guarantee that casing 1 and the compactness of case lid 3 combinations guarantee the vacuum of container cavity 2, the flexible wire netting of interlocking in described the second annular groove 5, the elastic metallic net can prevent that microwave leakage from causing harmful effect to the person, the area that described first ring connected in star 4 surrounds is greater than container cavity 2 longitudinal cross-section areas, the area that the area that described the second annular groove 5 surrounds surrounds greater than first ring connected in star 4, be provided with microwave generator and control circuit in described casing 1, described material tray 8 be located in container cavity 2 and by rotating shaft with in be located at casing 1 bottom motor be connected, material tray 8 can rotate under the drive of motor and so make heating material even, described microwave generator is located at the right side of container cavity 2, described control panel 9 is electrically connected to control circuit, described air inlet pipe 11 is provided with the magnetic valve 12 of controlling its break-make, described air inlet pipe 11 communicates with container cavity 2, described escape pipe 13 1 ends communicate with container cavity 2, the other end is connected with air-introduced machine 14, described escape pipe 13 is provided with the check valve 15 of opening to air-introduced machine 14 directions from container cavity 2 only, the backplate that surrounds container cavity 2 is thesieve plate 6 that hasmesh 10, describedsieve plate 6 back are provided with the condenser pipe 7 of vertical setting, aperture≤the 3mm of describedmesh 10, describedsieve plate 6 is made of metal, metal mesh opening below 3mm only steam can be passed through, and microwave can't pass through.

Preferably, the aperture of describedmesh 10 is 2.5mm.

In use, first material is put on material tray 8, closes case lid 3, close the magnetic valve 12 on air inlet pipe, start air-introduced machines 14 by control panel 9, check valve 15 was opened and container cavity 2 was inhaled vacuum this moment, closed air-introduced machine 14 after reaching the certain vacuum degree; Start microwave generator and motors by control panel 9, be condensed into water droplet after themesh 10 that the steam in material passessieve plate 6 arrives on condenser pipes 7 and along condenser pipe 7 outer wall landings and discharge; The aperture ofmesh 10 is that 2.5mm can guarantee only to allow steam can't again heat by 10 pairs of condensed water of mesh by having avoided microwave by microwave, thereby the water that causes being attached on condenser pipe 7 returns again in container cavity 2, and then causes dry materials not thorough; Dry complete, close microwave generator and motor, open magnetic valve container cavity 2 12 this moment and communicate with the external world, open at last case lid 3 and take out material.

The above describes the present invention with way of example, but the invention is not restricted to above-mentioned specific embodiment, and all any change or modification of doing based on the present invention all belong to the scope of protection of present invention.

Claims (2)

1. vacuum microwave drying case, it is characterized in that: comprise the casing (1) with container cavity (2), case lid (3), material tray (8), control panel (9), air inlet pipe (11), escape pipe (13) and air-introduced machine (14), described case lid (3) is rotationally connected with casing (1), offer first ring connected in star (4) and the second annular groove (5) on described case lid (3) face relative with casing (1), in described first ring connected in star (4), interlocking has sealing ring, the flexible wire netting of interlocking in described the second annular groove (5), the area that described first ring connected in star (4) surrounds is greater than container cavity (2) longitudinal cross-section area, the area that the area that described the second annular groove (5) surrounds surrounds greater than first ring connected in star (4), described casing is provided with microwave generator and control circuit in (1), described material tray (8) be located in container cavity (2) and by rotating shaft with in be located at casing (1) bottom motor be connected, described microwave generator is located at the right side of container cavity (2), described control panel (9) is electrically connected to control circuit, described air inlet pipe (11) is provided with the magnetic valve (12) of controlling its break-make, described air inlet pipe (11) communicates with container cavity (2), described escape pipe (13) one ends communicate with container cavity (2), the other end is connected with air-introduced machine (14), described escape pipe (13) is provided with the check valve (15) of opening to air-introduced machine (14) direction from container cavity (2) only, surround the backplate of container cavity (2) for having the sieve plate (6) of mesh (10), described sieve plate (6) back is provided with the condenser pipe (7) of vertical setting, aperture≤the 3mm of described mesh (10), described sieve plate (6) is made of metal.

2. a kind of vacuum microwave drying case according to claim 1, it is characterized in that: the aperture of described mesh (10) is 2.5mm.

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