CN2668239Y

CN2668239Y - Sealed pressurized microwave digesting tank

Info

Publication number: CN2668239Y
Application number: CNU032495439U
Authority: CN
Inventors: 罗方若
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-07-17
Filing date: 2003-07-17
Publication date: 2005-01-05
Anticipated expiration: 2013-07-17

Abstract

The utility model relates to an improved sealed pressurized microwave digesting tank. The aperture of the tank which has an aperture at one end is connected in the matching mode with an outer cover through square screws. The aperture of the tank is matched with an inner cover which can be sealed in the taper inclined plane mode with the tank. The center position between the inner cover and the outer cover is provided with a bulge structure through which the inner cover and the outer cover can butt and press. The inner cover is sealed with the aperture of the tank through the bulge. In addition, the thickness of the inner cover ring periphery between the bulge and the internal opening of the tank is smaller than the thickness of the wall of the tank, wherein, the inner cover is at least provided with an explosion proof area whose thickness is smaller than the thickness of the ring periphery thereof. The outer cover is provided with a channel structure communicated with the surrounding. The structure can ensure the normal resolution reaction operations of the microwave sample and can meanwhile solve the problem of the explosion proof when the pressure in the tank increases in the emergency or accident conditions. The safety performance in the operations is improved.

Description

Sealing supercharging microwave digestion jar

Technical field

The utility model relates to a kind of microwave pressure digestion solubilizing reaction container of realized superpressure automatically unloading of improved form.

Background technology

The micro-wave digestion sample is a kind of new sample digestion technology, from last century the seventies put forward, the eighties beginning promptly has micro-wave digestion equipment to emerge.In industry, agricultural, environmental protection, sanitary inspection, metallurgy, geology, medicine, clearing up of the various samples of department such as chemical industry all has been widely used aspect the accurate mensuration of the trace in the various samples, trace and ultratrace element at atom spectrum such as atomic absorption instrument, ICP-emission spectrometer, atomic fluorescence instrument, ICP-mass spectrograph and anode digestion instrument etc. especially.At notification number is a kind of microwave pressure reaction sample-dissolving pot that disclosed a kind of the applicant designs proposition in the Chinese patent literature of CN2182670Y, its structure is made up of tank body, enclosing cover and three parts of inner cap that an end of all making with polytetrafluoroethylene (PTFE) respectively usually has opening, wherein but enclosing cover is connected with tank body peristome classical prescription threaded engagement, being convenient to need not can be directly tight with hand-screw by other instruments, easy to use, be easy to maintenance clean, and can guarantee the firm reliability that is connected; An inner cap and jar mouthful tapered slope that warp can cooperatively interact, and a diameter that between inner cap and enclosing cover, is provided with less than the boss structure of jar mouth internal diameter make its compress mutually realize inner cap with jar mouthful a sealing, the interior cover of this boss periphery then is designed to have thin ringed perimeter structure.Its operation principle is: when jar internal pressure during greater than rated value, press in the somewhere of the ringed perimeter structure division of this thinner thickness promptly can be subjected to promote and upwarp, realize the venting release, reach the purpose of automatic safe protective; After the step-down its again voluntarily reinstatement continue to keep airtight.The actual result who uses proves, the structural elements that the microwave pressure of this version reacts molten this sample-dissolving pot of sample digester is few, reasonable in design, easy and simple to handle, safe and reliable, firm and durable, and it is strong to have the ability of clearing up, even for the high-temperature alloy steel that is difficult to dissolve, rutile, platinum-rhodium catalyst etc., also can decompose fully very soon; It is fast to clear up speed, and general sample only needed can clear up fully in 3-5 minute; Reagent dosage is few, only needs 3-5 milliliter solvent usually, especially saves high purity reagent, reduces analysis cost greatly; Pollute minimumly, reagent blank is low, helps the high-sensitivity analysis instrument and accurately measures trace element; Energy savings, power consumption is few, and disposable input expense waits significant superiority less.But also find in actual use, under the pressure sharp increase situation that runs into some accident or burst, make troubles owing to the microwave pressure of this structure reaction digester still lacks the laminated structure that unloads that can mediate quickly and effectively when increasing severely with processing pressure, thereby can not guarantee that still being perfectly safe in the actual use lean on.

The utility model content

At above-mentioned situation, the utility model will provide a kind of digester that improves the sealing supercharging microwave reaction of structure, to solve still unsatisfactory part in the above-mentioned microwave reaction digester structure.

The structure of the utility model sealing supercharging microwave digestion jar is the improvement of making on above-mentioned similar digester basis.That is: at one end the peristome of the tank body of opening is connected through square thread and enclosing cover, the peristome of tank body is combined with one and can the tapering incline plane type makes the inner cap that is sealed and matched with it, between the centre of inner cap and enclosing cover, be provided with and it is cooperated as roof pressure and make inner cap and tank body peristome realize the bulge-structure of sealing, and the thickness partly of the inner cap ringed perimeter between this bulge-structure and tank body internal orifice is less than the wall thickness of tank body.Wherein be provided with the explosion-proof area of a thickness at least, cover outside and be provided with the channel design that is communicated with extraneous maintenance less than its ringed perimeter segment thickness interior covering.

On the basis of said structure, as can be when implementing a kind of mode of reference example, be to make the explosion-proof area that covers in wherein said be adopted as the cecum enclosed construction of a blind hole type structure that is arranged at its centre for convenient, at this moment, said this channel design then can be corresponding with this blind hole structure be provided with can connect the bulge-structure that is arranged between inner cap and enclosing cover and the through-hole structure of outer cover structure simultaneously.

Equally, the bulge-structure between said inner cap and enclosing cover is also convenient to be adopted as the overall structure form that covers in being arranged at concentric shape in the said structure.

Owing in above-mentioned inner cap, be provided with a thickness than the littler explosion-proof area of its ring-type peripheral part thickness, and cover outside and be provided with the channel design that is in communication with the outside, therefore, should have pressure sharp increase situation by inner cap even in clearing up course of reaction, occurred exceeding than the unexpected or burst of the normal pressure relief capability scope at this ringed perimeter position of minimal thickness, also only allow it to be broken through by the thinner explosion-proof area of this thickness, and the channel design that is in communication with the outside that can cover outside being arranged on is mediated pressure quickly and effectively, avoid having an accident, further guarantee and improved the safe and reliable of operation process.

On the basis of foregoing,,, can also make modification, replacement or the change of various ways according to the ordinary skill knowledge and the customary means of this area not breaking away under the above-mentioned basic fundamental thought of the utility model prerequisite.

Below in conjunction with the specific embodiment, foregoing of the present utility model is described in further detail again by the accompanying drawing illustrated embodiment.But this should be interpreted as that the scope of the above-mentioned theme of the utility model only limits to following example.All technology that is realized based on the utility model foregoing all belong to scope of the present utility model.

Description of drawings

Fig. 1 is the structural representation of the utility model sealing supercharging microwave digestion jar.

The specific embodiment

Sealing supercharging microwave digestion jar as shown in the figure, the tank body 1, enclosing cover 2 and inner cap 5 three parts that are had opening by an end of all being made by polytetrafluoroethylene (PTFE) are respectively formed.The peristome outside of tank body 1 is connected through square thread 7 and the enclosing cover 2 that has corresponding internal thread; The interior oral area of tank body 1 and the taper fit inclined-plane 6 of inner cap 5 through cooperatively interacting are sealed and matched.Central part in inner cap 5 outer faces has one be the cylindrical bump structure of overall structure form with it, and cooperates and inner cap 5 is cooperated with the interior oral area realization effective seal of tank body with the roof pressure of 2 of this bulge-structure and enclosing covers.The thickness of the inner cap 5 ringed perimeter part between this cylindrical bump structural outer rim and tank body internal orifice should be less than the wall thickness of tank body 1.Central part at inner cap 5 also is provided with the explosion-proof area 3 of a thickness less than its ring-type peripheral part thickness, and enclosing cover 2 is provided with and the extraneous channel design 4 that connects.The cecum enclosed construction that this explosion-proof area 3 shown in the figure is a blind hole type structure; 4 of channel designs are the bulge-structure that covers in the connecting simultaneously of corresponding setting with this blind hole structure and the through hole of enclosing cover 2 structures.

Claims

1. seal supercharging microwave digestion jar, at one end the peristome of the tank body of opening (1) is connected through square thread (7) and enclosing cover (2), the peristome of tank body (1) is combined with one and can tapering inclined-plane (6) mode makes the inner cap (5) that is sealed and matched with it, between the centre of inner cap (5) and enclosing cover (2), be provided with and it is cooperated as roof pressure and make inner cap (5) and tank body peristome realize the bulge-structure of sealing, and the thickness of the part of inner cap (5) ringed perimeter between this bulge-structure and tank body internal orifice is less than the wall thickness of tank body (1), it is characterized in that being provided with at least on inner cap (5) explosion-proof area (3) of a thickness less than this ringed perimeter segment thickness, enclosing cover (2) is provided with the channel design (4) that is communicated with extraneous maintenance.

2. sealing supercharging microwave digestion jar as claimed in claim 1, it is characterized in that explosion-proof area (3) on the said inner cap (5) for being arranged at the cecum enclosed construction of a blind hole type structure in its centre, said channel design (4) for be provided with corresponding the time with this blind hole structure perforation be arranged at the bulge-structure between inner cap and enclosing cover and the through-hole structure of enclosing cover (2) structure.

3. sealing supercharging microwave digestion jar as claimed in claim 1 or 2 is characterized in that bulge-structure between said inner cap and enclosing cover is for being arranged at the overall structure form on the inner cap (5) with concentric shape.