CN102389749B

CN102389749B - Hydrothermal synthesis reactor

Info

Publication number: CN102389749B
Application number: CN201110318928.0A
Authority: CN
Inventors: 孙丰江
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-10-10
Filing date: 2011-10-10
Publication date: 2014-12-10
Anticipated expiration: 2031-10-10
Also published as: CN102389749A

Abstract

The invention discloses a hydrothermal synthesis reactor which comprises a tank body, a jacket cover, an inner container and an inner cover. The hydrothermal synthesis reactor is characterized in that the bottom of the tank body is sealed, a rotary clamping mechanism is arranged between the jacket cover and the tank body, the inside of the top of the tank body is provided with a sealed step, the jacket cover and a lead screw are matched by threads, the lower end of the lead screw is provided with a sealed pressing plate, and the sealed pressing plate and the sealed step are matched. The hydrothermal synthesis reactor is good in sealing effect, therefore, the leakage of reaction materials can be avoided, and the accuracy of chemical determination can be improved; and because the hydrothermal synthesis reactor is reasonable in design, the service life of the reactor is long. Therefore, the hydrothermal synthesis reactor is an ideal high temperature and high pressure reaction vessel.

Description

A kind of hydrothermal synthesis reaction still

Technical field

The present invention relates to a kind of chemical reaction apparatus, high temperature resistant, the high pressure of especially using for a kind of chemical reaction, prevent the airtight container revealed.

Background technology

Hydrothermal synthesis reaction still, claims again polymerization reaction kettle, high-pressure digestion tank, Pressure solution bullet, is a kind of closed container that can decompose indissoluble material.Can be used for the molten sample pretreatment in the analyses such as atomic absorption spectrum and plasma transmitting; Also can be used for low dose of synthetic reaction; Also can utilize the interior strong acid of tank body or highly basic and high temperature high pressure enclosed environment to reach the object of rapid-digestion indissoluble material.The competent assistant who clears up sample while measuring trace element and trace element.The advantages such as it has good looking appearance, rational in infrastructure, simple to operate, shortens analysis time, and data are reliable.

At present, comparatively conventional hydrothermal synthesis reaction still generally includes columniform stainless steel tank body, upper shield with its threaded engagement, and the polytetrafluoroethylliner liner of placing in inner chamber, convenient to remove after reaction completes for convenience of inner bag, tank base is not integrative-structure, but in bottom, be provided with concentric circular hole, circular hole top is provided with the pad that is greater than its radius, existence due to the circular hole of tank base, and tank body and upper shield adopt the thread connecting mode degree of tightening to vary with each individual, cause the sealing of hydrothermal synthesis reaction still to be difficult to ensure card, being prone to reactive material reveals, affect experimental test data, if the material of revealing is poisonous, also can pollute surrounding environment.

In addition, because upper shield adopts and is threaded with tank body, because its operation is more frequent, thread abrasion is very fast, affects the service life of hydrothermal synthesis reaction still; For increasing the sealing of pad and tank base circular hole, normally at upper shield downside, be provided with stage clip, cause whole utensil appurtenances more, in case of damaged the use of the whole equipment of impact.

Summary of the invention

For overcoming above-mentioned technology technical problem, the present invention realizes by the following technical solutions: a kind of hydrothermal synthesis reaction still, the tank body that comprises a cylindricality, the upper shield of top, inner bag that can independent assortment, the inner cap coordinating with inner bag, described tank body, upper shield adopts high temperature resistant, the stainless steel material of high pressure is made, and inner bag, inner cap adopts the polytetrafluoroethylmaterial material that anti acid alkali performance is strong to make, it is characterized in that: the bottom of tank body is closed structure, upper shield can be enclosed within outside, tank body top, be provided with rotation clamping body between the two, after clamping, can limit both relatively moves up and down, tank body inside top is provided with a sealed step, upper shield coordinates with a leading screw by screw thread at circle centre position, the lower end of leading screw is fixed on the sealing clamp that a stainless steel makes, the sealed step of sealing clamp and tank body inner side is sealed and matched, the seal that keeps the space below sealing clamp in tank body.

The prerequisite that sealing clamp is combined closely with sealed step is that the relative upper shield of leading screw is moved down, and upper shield, the equal smoother in leading screw upper end, for reducing the simplification of operation, the upper end of leading screw is fixed with an adjusting nut, and the upper end centre of upper shield is provided with a hold-down nut, and leading screw upper section is provided with a via hole that can insert swing arm, by instruments such as spanner, screwdrivers, is convenient to operation.

Due in order to guarantee the tank body sealing in when work, tank base is not provided with circular hole, the taking-up of inner bag just becomes a problem, for this reason, the present invention has a cannelure in the upper surface of inner cap, is filled with high temperature resistant magnet in cannelure, because sealing clamp adopts stainless steel material, makes, attraction by magnet to it, takes out inner bag.

The present invention has following beneficial effect: because tank body not directly seals by upper shield, omitted helicitic texture between the two, but matched by revotating card locking structure, service life is longer; Because adopting sealing gland, sealed step, tank body upper end seals simultaneously, tank base is not established circular hole, sealing while effectively having improved chemical reaction, overcome in the past gland easy deficiency of deformation effect container seal after using several times, reduced the drawbacks such as chemical substance is leaked the pollution that brings or testing result error is larger.

Accompanying drawing explanation

Fig. 1 is perspective view of the present invention.

Fig. 2 is tank structure schematic diagram.

Fig. 3 is inner bag and inner cover structure schematic diagram.

Fig. 4 is that the present invention cuts structural representation open along central axis.

Fig. 5 is upper shield structural representation.

Fig. 6 is sealing clamp and screw structure schematic diagram.

Fig. 7 is the structural representation after setting pressure table of the present invention.

In figure, 1, tank body, 2, upper shield, 3, hold-down nut, 4, swing arm, 5, adjusting nut, 6, leading screw, 7, stainless steel tube, 8, Pressure gauge, 9, sealed step, 10, boss, 11, without land areas, 12, inner bag, 13, inner cap, 14, high temperature resistant magnet, 15, fixture block, 16, screw, 17, sealing clamp, 18, screw thread.

The specific embodiment

Referring to accompanying drawing 1,4, tank body 1 is cylindricality, its top is provided with upper shield 2, be provided with rotation clamping body between the two, and both make by stainless steel material, upper shield 2 sealed bottoms, top is open, inner chamber is used for placing inner bag 12, and inner bag 12 tops are provided with the inner cap 13 of cooperation, and described inner bag 12, inner cap 13 all have the polytetrafluoroethylmaterial material that anti acid alkali performance is good to make;

Referring to accompanying drawing 2,4,5, tank body 1 is provided with rotation clamping body with upper shield 2, described rotation clamping body is to have three boss 10 that shape is identical tank body 1 top outer is outwardly, the inner side, lower end of upper shield 2 is provided with three to projecting inward fixture block 15, by the fixture block of upper shield 2 15 aim at tank body 1 tops without land areas 11, upper shield 2 can be enclosed within to tank body 1 top, then rotate upper shield 2 and make fixture block 15 be positioned at boss 10 downsides, now both moving up and down obtained restriction; And shown in accompanying drawing 2,4, tank body 1 inside top is provided with a sealed step 9, and sealed step 9 bottoms are higher than inner cap 13;

Referring to accompanying drawing 1,4,5,6, upper shield 2 upper ends are fixed with a hold-down nut 3 at circle centre position, hold-down nut 3 and upper shield 2 are provided with the screw 16 running through, what screw 16 coordinated therewith is the leading screw 6 that a middle and lower part has screw thread 18, leading screw 6 is made by stainless steel material, its upper end is fixedly connected with adjusting nut 5, its lower end is fixed on the center of circle of circular sealing clamp 17, sealing clamp 17 adopts stainless steel material to make, it can be sealed and matched with aforesaid sealed step 9, for convenience of the position of adjusting screw 6; The upper section of leading screw 6 is provided with the via hole that can insert swing arm 4;

Referring to accompanying drawing 3,4, because tank body 1 bottom is not provided with circular hole, the taking-up of inner bag 12 just becomes a problem, for this reason, the present invention has a cannelure in the upper surface of inner cap 13, in cannelure, be filled with high temperature resistant magnet 14, sealing clamp 17 can take out inner bag 12 by the attraction with high temperature resistant magnet 14;

Referring to accompanying drawing 7, owing to needing to control the pressure in reactor in part chemical reaction process, leading screw 6, sealing clamp 17 can be processed into hollow-core construction, and leading screw 6 tops are connected with Pressure gauge 8 by stainless steel tube 7.

Its sealing principle is: by after inner bag 12, inner cap 13 seal combination, be positioned in the chamber of tank body 1, upper shield 2 and tank body 1 are clamped by rotation clamping body, then by spanner, hold-down nut 3 is fixed, then by swing arm 4 or spanner rotating threaded shaft 6, it is moved down, after moving down to a certain degree, sealing clamp 17 falls in sealed step 9, both combine closely and play the effect of sealing in chamber, for playing better sealing, can add high-temperature resistant rubber pad by between.

Claims

1. a hydrothermal synthesis reaction still, comprise the tank body of a cylindricality, the upper shield of top, inner bag that can independent assortment, the inner cap coordinating with inner bag, it is characterized in that: the bottom of tank body is closed structure, upper shield can be enclosed within outside, tank body top, be provided with rotation clamping body between the two, tank body inside top is provided with a sealed step, and upper shield coordinates with a leading screw by screw thread at circle centre position, the lower end of leading screw is fixed on sealing clamp, and the sealed step of sealing clamp and tank body inner side is sealed and matched; The upper end of leading screw is fixed with an adjusting nut, and the upper end centre of upper shield is provided with a hold-down nut, and leading screw upper section is provided with a via hole that can insert swing arm; The upper surface of inner cap has a cannelure, is filled with high temperature resistant magnet in cannelure; Described rotation clamping body is to have three boss that shape is identical tank body top outer is outwardly, and the inner side, lower end of upper shield is provided with three to projecting inward fixture block.