CN208984440U - A kind of heating digestion instrument - Google Patents
A kind of heating digestion instrument Download PDFInfo
- Publication number
- CN208984440U CN208984440U CN201821603400.1U CN201821603400U CN208984440U CN 208984440 U CN208984440 U CN 208984440U CN 201821603400 U CN201821603400 U CN 201821603400U CN 208984440 U CN208984440 U CN 208984440U
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- digestion
- shell
- tube
- nut
- tubule
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Abstract
The utility model discloses a kind of heating digestion instruments, including digestion tube, shell and connecting tube；The digestion tube is set in shell；Digestion tube both ends are respectively undergauge tubule, are stretched out outside shell by undergauge tubule；Undergauge tubule peripheral side is fixed with swivel nut, is screwed on by corresponding nut and swivel nut one end and digestion tube both ends are fixed on shell；The end of each undergauge tubule is the small circular cone structure of outer end bore, and connecting tube one end is equipped with horn mouth corresponding with the circular cone structure and docks with circular cone structure, and is screwed on by nut and the swivel nut other end and connecting tube is fixed to the corresponding end of digestion tube；Elastic construction is equipped at the horn mouth flaring of connecting tube between nut inner face.The utility model heats digestion instrument and is fixedly mounted conveniently, and has preferable high pressure effect resistant to high temperatures.
Description
Technical field
The utility model relates to chemical analysis instrument fields, and in particular to a kind of heating digestion instrument.
Background technique
Chemical analysis instrument often needs to carry out heating resolution to liquid sample under conditions of high temperature and pressure, and this requires resolutions to fill
It sets and is resistant to burn into resistance to oxidation and high temperature high voltage resistant, so when designing digestion instrument, in addition to needing to select suitable material system
Make digestion tube, guarantee digestion instrument also in need has good high pressure effect resistant to high temperatures.
Most of digestion instrument selects glass at present or quartz material makes digestion tube, and some uses test tube when installation
The method of plug will clear up the seal of tube, then test tube plug is fixed, or the both ends of digestion tube are embedded in card slot, then firmly compress both sides
Card slot achievees the effect that seal and fix digestion tube, these methods can encounter some problems in use, for example seal not
Tight or sealed pressure is crossed ambassador's digestion tube and is burst in the case where high temperature and pressure.
Summary of the invention
Purpose of the utility model is to solve defect existing in the prior art, provide it is a kind of facilitate fixed installation,
And there is the heating digestion instrument of preferable high pressure effect resistant to high temperatures.
In order to achieve the above object, the utility model relates to a kind of heating digestion instruments, including digestion tube, shell and connection
Pipe；Digestion tube is set in shell；Digestion tube both ends are respectively undergauge tubule, are stretched out outside shell by undergauge tubule；Undergauge tubule
Peripheral side is fixed with swivel nut, is screwed on by corresponding nut and swivel nut one end and digestion tube both ends are fixed on shell；Respectively
The end of undergauge tubule is the small circular cone structure of outer end bore, and connecting tube one end is equipped with loudspeaker corresponding with the circular cone structure
Mouth is docked with circular cone structure, and is screwed on by nut and the swivel nut other end and connecting tube is fixed to the corresponding end of digestion tube；
Elastic construction is equipped at the horn mouth flaring of connecting tube between nut inner face.
Digestion tube is fixed inside the shell, it is more convenient by the fixation to the fixed realization of shell to single unit system.Simultaneously
The elastic construction of the counter structure and nozzle peripheral hardware of connecting tube nozzle and resolution pipe end can effectively realize connecting tube and resolution
Sealing between pipe, and the excessive situation of sealed pressure under high-temperature and high-pressure conditions can be alleviated.
Further, elastic construction includes pressure ring, spring；Pressure ring is corresponding with the horn mouth outline shape of connecting tube, set
On the outside of horn mouth；Spring is set between pressure ring and nut inner face.
Further, spring uses disc spring.
Further, digestion tube peripheral side is equipped with heater strip fixing groove and platinum resistance placing groove.
Further, it is solid that fan hole, heating wire hole, platinum resistance string holes, fiber-optic fixing-hole and installation are respectively equipped on shell
Determine hole.
Further, shell includes shell, upper cover and lower cover；Upper cover and lower cover are fixed at shell upper and lower ends respectively；
Upper cover, lower cover corresponding position are respectively equipped with digestion tube fixation hole；The undergauge tubule at digestion tube both ends is each passed through corresponding disappear
It solves pipe fixation hole and stretches out shell both ends.
Further, observation port is additionally provided on shell.
The utility model has the advantage that compared with prior art
Using being screwed between swivel nut and nut, nut, the company between digestion tube and shell, connecting tube can be effectively realized
It connects, the mechanical pressure generated using conventional extruded sealing means is avoided, to burst phenomenon under preventing high temperature and pressure.And pass through
Connecting tube nozzle and the counter structure of resolution pipe end can effectively realize sealing, without sealing ring when assembling.It utilizes simultaneously
The elastic mechanism being arranged at connecting tube nozzle plays the role of pressure compensation, and the service life of digestion tube is greatly improved.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that the utility model heats digestion instrument；
Fig. 2 is the structural schematic diagram of digestion tube in Fig. 1；
Fig. 3 is the connection relationship diagram of digestion tube and connecting tube in Fig. 1.
In figure, 1- digestion tube, 11- undergauge tubule, 12- circular cone structure, 13- swivel nut, 14- heater strip fixing groove, 15- platinum
Resistance placing groove, 2- shell, 21- shell, 22- upper cover, 23- lower cover, 24- nut, 201- fan hole, 202- fiber-optic fixing-hole,
203- heats wire hole, and 204- installs fixation hole, 205- platinum resistance string holes, 206- digestion tube fixation hole, 3- connecting tube, 31- loudspeaker
Mouthful, 32- pressure ring, 33- disc spring, 34- nut.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawing.
As shown in Figure 1, the utility model heats digestion instrument, including digestion tube 1, shell 2 and connecting tube 3.In conjunction with Fig. 2,
1 both ends of digestion tube are respectively undergauge tubule 11, and 11 peripheral side of undergauge tubule is fixed with swivel nut 13, and the end of undergauge tubule 11 is
The small circular cone structure 12 of outer end bore.The fixed form of swivel nut 13 and digestion tube pasted using glass-metal gluing by the way of into
Row is fixed.Circular cone structure 12 stretches out 13 outside of swivel nut.1 peripheral side of digestion tube is equipped with heater strip fixing groove 14 and platinum resistance is placed
Slot 15.As shown in Figure 1, shell 2 includes shell 21, upper cover 22 and lower cover 23；Upper cover 22 and lower cover 23 are fixed by screw respectively
Set on the upper and lower ends of shell 21；Upper cover 22,23 corresponding position of lower cover are respectively equipped with digestion tube fixation hole 206.Digestion tube 1
In in shell 2, the undergauge tubule 11 at both ends is each passed through corresponding digestion tube fixation hole 206 and stretches out 21 both ends of shell, and passes through
Corresponding nut 24 is screwed on 13 one end of swivel nut and tightens, so that 1 both ends of digestion tube are fixed on shell 2.After shell 21
Fan hole 201, heating wire hole 203, platinum resistance string holes 205 is arranged in side, and the left and right sides is respectively provided with a fiber-optic fixing-hole 202, preceding
Side is equipped with observation port, and observation port can be covered by one piece of dismountable baffle.The rear side of shell 21 is additionally provided with installation fixation hole
204, facilitate the fixed installation for carrying out shell 2.
As shown in figure 3,3 one end of connecting tube is equipped with horn mouth 31 corresponding with 1 circular cone structure 12 of digestion tube, pass through loudspeaker
Mouth is docked with circular cone structure, and the other end successively passes through four disc springs of pressure ring 32 corresponding with bell shape, positive and negative placement
33, nut 34, and be screwed on and tightened with 13 other end of swivel nut by nut 34, so that connecting tube 3 to be fixed to pair of digestion tube 1
Ying Duan.Externally threaded length is not less than the summation of nut 24 and 34 internal screw thread length of nut on the swivel nut 13 of 1 peripheral hardware of digestion tube.
When assembling, first the upper cover 22 of shell 2 is opened, then the lower end undergauge tubule 11 of digestion tube 1 is worn together with swivel nut 13
The digestion tube fixation hole 206 for crossing lower cover 23, is screwed on lower end swivel nut 13 with nut 24 and is tightened, and upper cover 22 is fixed on shell later
On 31, and it is screwed on and is tightened with the upper end swivel nut 13 of nut 24 and digestion tube 1.The horn mouth 31 of connecting tube 3 and the circular cone of digestion tube 1
The docking of platform structure, then outer end sequentially passes through pressure ring 32, four disc springs 33 of positive and negative placement, nut 34, and by nut 34 with
Swivel nut 13, which is screwed on, to be tightened, so that connecting tube 3 to be fixed to the corresponding end of digestion tube 1.
Claims (7)
1. a kind of heating digestion instrument, it is characterised in that: the heating digestion instrument includes digestion tube, shell and connecting tube；Institute
Digestion tube is stated in shell；The digestion tube both ends are respectively undergauge tubule, are stretched out outside shell by undergauge tubule；The contracting
Diameter tubule peripheral side is fixed with swivel nut, is screwed on by corresponding nut with swivel nut one end and is fixed at the digestion tube both ends
On shell；The end of each undergauge tubule is the small circular cone structure of outer end bore, and described connecting tube one end is equipped with and the frustum of a cone
The corresponding horn mouth of structure is docked with the circular cone structure, and is screwed on by nut and the swivel nut other end by the connection
Pipe is fixed at the corresponding end of digestion tube；Elasticity knot is equipped at the horn mouth flaring of the connecting tube between nut inner face
Structure.
2. heating digestion instrument according to claim 1, it is characterised in that: the elastic construction includes pressure ring, spring；Institute
It is corresponding with the horn mouth outline shape of connecting tube to state pressure ring, is placed on the outside of horn mouth；The spring is set in pressure ring and nut
Between end face.
3. heating digestion instrument according to claim 2, it is characterised in that: the spring uses disc spring.
4. heating digestion instrument according to any one of claims 1 to 3, it is characterised in that: the digestion tube peripheral side is equipped with
Heater strip fixing groove and platinum resistance placing groove.
5. heating digestion instrument according to any one of claims 1 to 3, it is characterised in that: be respectively equipped with wind on the shell
Fan hole, heating wire hole, platinum resistance string holes, fiber-optic fixing-hole and installation fixation hole.
6. heating digestion instrument according to claim 5, it is characterised in that: the shell includes shell, upper cover and lower cover；
The upper cover and lower cover are fixed at shell upper and lower ends respectively；The upper cover, lower cover corresponding position are respectively equipped with digestion tube
Fixation hole；The undergauge tubule at the digestion tube both ends is each passed through corresponding digestion tube fixation hole and stretches out shell both ends.
7. heating digestion instrument according to claim 6, it is characterised in that: be additionally provided with observation port on the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821603400.1U CN208984440U (en) | 2018-09-29 | 2018-09-29 | A kind of heating digestion instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821603400.1U CN208984440U (en) | 2018-09-29 | 2018-09-29 | A kind of heating digestion instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208984440U true CN208984440U (en) | 2019-06-14 |
Family
ID=66786144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821603400.1U Active CN208984440U (en) | 2018-09-29 | 2018-09-29 | A kind of heating digestion instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208984440U (en) |
-
2018
- 2018-09-29 CN CN201821603400.1U patent/CN208984440U/en active Active
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