CN212391322U - High-pressure digestion tank - Google Patents
High-pressure digestion tank Download PDFInfo
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- CN212391322U CN212391322U CN202020350027.4U CN202020350027U CN212391322U CN 212391322 U CN212391322 U CN 212391322U CN 202020350027 U CN202020350027 U CN 202020350027U CN 212391322 U CN212391322 U CN 212391322U
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- tank
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- optical fiber
- pressure relief
- temperature measuring
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Abstract
The utility model discloses a high-pressure digestion tank, which comprises a sample-loading inner tank, a tank frame, a protective outer tank, a tank bottom gasket, an elastic gland, a screw pressure pad, a fixing screw, an infrared scanning temperature measuring device, a temperature measuring optical fiber and an optical fiber quartz sleeve; the protective outer tank is sleeved outside the sample-holding inner tank, the protective outer tank is arranged on the tank frame through a tank bottom gasket, the infrared scanning temperature measuring device is fixed on the tank frame, and the infrared scanning temperature measuring device is in contact with the protective outer tank; the elastic gland is embedded and sealed at the top of the sample loading inner tank, the screw pressure pad is placed above the elastic gland, and the fixing screw is fixed above the screw pressure pad through the tank frame; the optical fiber quartz sleeve is fixed below the elastic gland through threads, the optical fiber quartz sleeve is positioned inside the sample loading inner tank, and the temperature measuring optical fiber penetrates through the concentric through hole and is suspended inside the optical fiber quartz sleeve. The utility model discloses a high pressure is cleared up jar and is realized accurate temperature measurement, can realize the automatic physics pressure release under the extreme pressure condition again, has promoted the security performance.
Description
Technical Field
The utility model relates to a chemistry detects the field, in particular to jar is cleared up to high pressure.
Background
High-pressure digestion tank, also called high-pressure sealed tank, high-pressure sample dissolving bomb, pressure dissolving bomb, high-pressure digestion tank, pressure digestion device and geological digestion tank. Under the environment of high-temperature and high-pressure closed strong acid or strong base, the digestion effect of indissolvable substances is better, a plurality of samples which are difficult to digest by the traditional method can be digested, the method has a wide application range, and is suitable for batch sample digestion, and the indissolvable samples (such As heavy metals like As, Hg, Pb and the like) can be completely dissolved within 10-to-minutes at 180 ℃, so that various samples can be digested.
The high-temperature high-pressure closed microwave digestion instrument can be widely used for sample pretreatment in a scientific laboratory; the optical fiber temperature measurement is free from microwave interference, the phenomenon of sparking is avoided, the advantage of high temperature measurement precision is needed to be adopted more and more, the conventional digestion tank group resistance temperature measurement sensor is arranged, the platinum resistance temperature measurement is carried out under the condition of meeting certain heat interference in the microwave environment part structure, so the accuracy is not high, the digestion tank structure for the optical fiber temperature measurement in the foreign countries seen in the market adopts the sapphire pipe with high price for installation and sealing, the structure for side extrusion locking and sealing is adopted, the internal optical fiber temperature measurement structure seen in the market adopts PTFE or PFA sleeve pipe as the installation structure, and the accurate temperature measurement is difficult to ensure. Other digestion tanks in the industry cannot realize automatic pressure relief, and can explode under extreme pressure, which not only causes operation interruption, but also can generate potential safety hazard.
There is a need for a high pressure digestion tank which can realize accurate temperature measurement and ensure the overall safety performance of the device under extreme pressure to solve the technical problems.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a jar is cleared up to high pressure, the utility model discloses a jar is cleared up to high pressure can realize accurate temperature measurement, can realize the automatic physics pressure release under the extreme pressure condition again, has promoted the security performance.
The utility model discloses a solve above-mentioned technical problem through following technical scheme:
the utility model provides a high-pressure digestion tank, which comprises a sample-loading inner tank, a tank frame, a protective outer tank, a tank bottom gasket, an elastic gland, a screw pressure pad, a fixing screw, an infrared scanning temperature measuring device, a temperature measuring optical fiber and an optical fiber quartz sleeve; the protective outer tank is sleeved outside the sample-holding inner tank, the protective outer tank is arranged on the tank frame through the tank bottom gasket, the infrared scanning temperature measuring device is fixed on the tank frame, and the infrared scanning temperature measuring device is in contact with the protective outer tank; the elastic pressing cover is sleeved and sealed on the top of the sample loading inner tank, the screw pressing pad is placed above the elastic pressing cover, and the fixing screw is fixed above the screw pressing pad through the tank frame; the centers of the fixing screw, the screw pressure pad and the elastic gland are all provided with concentric through holes; the optical fiber quartz sleeve is fixed below the elastic gland through threads, the optical fiber quartz sleeve is positioned inside the sample loading inner tank, the temperature measuring optical fiber penetrates through the concentric through hole and is suspended inside the optical fiber quartz sleeve, and the optical fiber quartz sleeve is provided with a plurality of blind holes; a pressure measuring channel penetrates through the elastic gland, the pressure measuring channel is communicated with the interior of the sample loading inner tank, the first pressure measuring channel is connected with a pressure testing interface and a pressure relief device, a through film is arranged on the pressure relief device, and a first pressure relief opening is formed in the rear end of the through film; the side wall of the elastic gland is provided with a plurality of second pressure relief ports, and a plurality of second pressure relief hole grooves are formed below the elastic gland; the second pressure relief ports correspond to the second pressure relief hole grooves one to one and are communicated through second pressure relief channels.
In the utility model, the sample-holding inner tank is used for loading samples to be processed, and the material and the structure of the sample-holding inner tank are conventional in the field;
preferably, in order to make the deformation and permeability of the sample holding inner tank lower under the high-temperature and high-pressure environment and realize better recovery under the high temperature, the material of the sample holding inner tank is a composite PTFE material, and the composite PTFE material comprises 0.003 mass percent of PPVE, 0.15 mass percent of PFA and 99.847 mass percent of PTFE.
The utility model discloses in, the outer jar of protection is used for the protection dress appearance inner tank is placed and is burst under the high pressure condition and cause splashing of inside material, the material of the outer jar of protection is the conventionality in this field, generally is glass fiber material and adds the PFA coating, and the heat resistance is strong, corrosion resistance is good, and mechanical strength is high.
In the utility model, the tank frame is used for bearing other components of the high-pressure digestion tank, and the structure of the tank frame is conventional in the field;
preferably, the tank frame comprises a bearing base, a connecting frame and a fixed top seat; the bearing base, the connecting frame and the fixed top seat form an integral structure, a bearing space is formed by the bearing base, the connecting frame and the fixed top seat, and the bottom of the protective outer tank is fixed above the bearing base through the tank bottom gasket; the center of the fixed top seat is provided with a threaded hole, and the fixed screw penetrates through the threaded hole and is fixed on the tank frame.
The utility model discloses in, tank bottoms gasket is used for the protection the bottom of outer jar of protection with the contact segment of tank tower, the tank bottoms gasket is the conventionality in this field.
In the utility model, the elastic gland is a main structural component of the utility model, and is provided with a concentric through hole, a pressure measuring channel, a second pressure relief port, a second pressure relief hole groove and a second pressure relief channel, wherein the concentric through hole is used for communicating the temperature measuring optical fiber; the pressure measuring channel is communicated with a subsequent pressure measuring device, and the pressure relief principle of the first pressure relief opening is that under the super-high pressure, gas penetrates through the through film to realize pressure relief; the second pressure relief hole is used for realizing automatic pressure relief of the device under larger pressure, the second pressure relief hole groove and the upper part of the sample containing inner tank are completely sealed in a conventional state, when the pressure is overlarge, the elastic gland deforms, the second pressure relief hole groove can ventilate, and gas is discharged from the second pressure relief hole through the second pressure relief channel to realize physical pressure relief;
preferably, the number of the second pressure relief ports is 4, and the second pressure relief ports are distributed on the side face of the elastic gland at equal intervals;
preferably, the aperture of the second pressure relief opening is 0.5-0.8 mm.
The utility model discloses in, the holistic security performance of device under the different pressure conditions has been guaranteed through the mode that first pressure release mouth and second pressure release mouth combined together, and the suitability of device is wider, and the security performance is higher.
The utility model discloses in, the screw pressure pad is used for the protection elasticity gland not by set screw damages and further realizes sealed, the screw pressure pad is the field conventionality.
The utility model discloses in, set screw be used for realizing the elasticity gland with the abundant sealing of dress appearance inner tank, set screw is the conventionality in this field.
The utility model discloses in, infrared scanning temperature measuring device is used for the temperature of real-time detection dress appearance inner tank, infrared scanning temperature measuring device is the field conventionality, realizes accurate temperature measurement through the cooperation of infrared scanning temperature measuring device and temperature measurement optic fibre.
The utility model discloses in, temperature measurement optic fibre is used for measuring the inside temperature of dress appearance inner tank, temperature measurement optic fibre is the field conventionality.
The utility model discloses in, the optical fiber quartz sleeve is used for the protection temperature measurement optic fibre, the optical fiber quartz sleeve is the field conventionality.
The utility model discloses in, the pressure test interface is used for connecting other pressure measurement devices.
The utility model discloses a jar is cleared up to high pressure's theory of operation does: the sample to be processed is placed in the sample loading inner tank, the temperature is synchronously measured through the infrared scanning temperature measuring device and the temperature measuring optical fiber, the pressure is relieved through the first pressure relief port and the second pressure relief port, and the bearable pressure is not lower than 10 MPa.
This practicality goes on positive progress effect: the utility model discloses a high pressure is cleared up jar and is realized accurate temperature measurement, can realize the automatic physics pressure release under the extreme pressure condition again, has promoted the security performance.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a schematic sectional view of a high pressure digestion tank according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a high pressure digestion tank according to an embodiment of the present invention;
FIG. 3 is a schematic view of a partial structure of a high pressure digestion tank according to an embodiment of the present invention;
fig. 4 is a top view of the high pressure digestion tank of the embodiment of the present invention.
Description of reference numerals:
1. a tank rack; 2. filling a sample into an inner tank;
3. protecting the outer tank; 4. an elastic gland;
5. a screw pressure pad; 6. a set screw;
7. a temperature measuring optical fiber; 8. a tank bottom gasket;
9. an infrared scanning temperature measuring device; 71. an optical fiber quartz sleeve;
41. a pressure test interface; 42. a pressure relief device;
43. a first pressure relief port; 44. a second pressure relief vent;
61. a concentric through hole.
Detailed Description
The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1 and fig. 2, the present embodiment provides a high-pressure digestion tank, which includes a sample-holding inner tank 2, a tank frame 1, a protective outer tank 3, a tank bottom gasket 8, an elastic gland 4, a screw pressure pad 5, a fixing screw 6, an infrared scanning temperature measurement device 9, a temperature measurement optical fiber 7 and an optical fiber quartz sleeve 71; the protective outer tank 3 is sleeved outside the sample-holding inner tank 2, the protective outer tank 3 is arranged on the tank bracket 1 through a tank bottom gasket 8, the infrared scanning temperature measuring device 9 is fixed on the tank bracket 1, and the infrared scanning temperature measuring device 9 is in contact with the protective outer tank 3; the elastic gland 4 is embedded and sealed at the top of the sample loading inner tank 2, the screw pressure pad 5 is placed above the elastic gland 4, and the fixing screw 6 is fixed above the screw pressure pad 5 through the tank frame 1; the centers of the fixing screw 6, the screw pressure pad 5 and the elastic gland 4 are all provided with concentric through holes 61; the optical fiber quartz sleeve 71 is fixed below the elastic gland 4 through threads, the optical fiber quartz sleeve 71 is positioned inside the sample loading inner tank 2, the temperature measuring optical fiber 7 penetrates through the concentric through hole 61 and is suspended inside the optical fiber quartz sleeve 71, and a plurality of blind holes are formed in the optical fiber quartz sleeve 71; a pressure measuring channel (not shown in the figure) penetrates through the elastic gland 4, the pressure measuring channel is communicated with the interior of the sample loading inner tank 2, a pressure testing interface 41 and a pressure relief device 42 are connected to the first pressure measuring channel, a penetrating film is arranged on the pressure relief device 42, and a first pressure relief opening 43 is formed in the rear end of the penetrating film; the side wall of the elastic gland 4 is provided with 4 second pressure relief ports 44, and 4 second pressure relief hole grooves (not shown in the figure) are formed below the elastic gland 4; the second pressure relief ports 44 correspond to the second pressure relief hole grooves one by one, and are communicated through a second pressure relief passage (not shown).
In this embodiment, the sample holding inner tank 2 is used for holding a sample to be processed, and in order to make the sample holding inner tank 2 have lower deformation and permeability in a high-temperature and high-pressure environment and achieve better restorability at a high temperature, the material of the sample holding inner tank 2 is a composite PTFE material including 0.003% by mass of PPVE, 0.15% by mass of PFA, and 99.847% by mass of PTFE.
In this embodiment, the outer protective tank 3 is used for protecting the sample loading inner tank 2, and is placed to burst under the high pressure condition to cause the splashing of internal substances, and the outer protective tank 3 is made of glass fiber materials and PFA coating, so that the heat resistance is strong, the corrosion resistance is good, and the mechanical strength is high.
In the embodiment, the tank frame 1 is used for bearing other components of the high-pressure digestion tank; the tank frame 1 comprises a bearing base, a connecting frame and a fixed top seat; the bearing base, the connecting frame and the fixed top seat form an integral structure, a bearing space is formed by the bearing base, the connecting frame and the fixed top seat, and the bottom of the protective outer tank 3 is fixed above the bearing base through a tank bottom gasket 8; the center of the fixed top seat is provided with a threaded hole, and a fixing screw 6 penetrates through the threaded hole and is fixed on the tank frame 1.
In this embodiment, the can bottom gasket 8 is used to protect the bottom of the outer can 3 and the contacting portion of the can holder 1.
In this embodiment, the elastic gland 4 is a main structural component of this embodiment, the elastic gland 4 is provided with a concentric through hole 61, a pressure measuring channel, a second pressure relief port 44, a second pressure relief hole groove and a second pressure relief channel, and the concentric through hole 61 is used for penetrating through the temperature measuring optical fiber 7; the pressure measuring channel is communicated with a subsequent pressure measuring device, and the pressure relief principle of the first pressure relief port 43 is that under the overlarge pressure, gas penetrates through the thin film to realize pressure relief; the second pressure relief port 44 is used for realizing automatic pressure relief of the device under larger pressure, the second pressure relief hole groove and the upper part of the sample loading inner tank 2 are completely sealed in a conventional state, when the pressure is overlarge, the elastic gland 4 deforms, the second pressure relief hole groove can be ventilated, and gas is discharged from the second pressure relief port 44 through a second pressure relief channel, so that physical pressure relief is realized; the second pressure relief ports 44 are distributed on the side surface of the elastic gland 4 at equal intervals; the second pressure relief port 44 has a 0.6mm aperture.
In this embodiment, the mode that combines together through first pressure release 43 and second pressure release 44 has guaranteed the holistic security performance of device under the different pressure conditions, and the suitability of device is wider, and the security performance is higher.
In this embodiment, the screw pressure pad 5 is used to protect the elastic gland 4 from being damaged by the fixing screw 6 and to further achieve sealing.
In this embodiment, the fixing screw 6 is used to achieve sufficient sealing between the elastic gland 4 and the sample holding inner tank 2.
In this embodiment, infrared scanning temperature measuring device 9 is used for real-time detection dress appearance inner tank 2's temperature, realizes accurate temperature measurement through the cooperation of infrared scanning temperature measuring device 9 and temperature measurement optic fibre 7.
In this embodiment, the temperature measuring optical fiber 7 is used for measuring the internal temperature of the sample holding inner tank 2.
In this embodiment, the optical fiber quartz sleeve 71 is used to protect the temperature measuring optical fiber 7.
In this embodiment, the pressure test interface 41 is used to connect to other pressure measuring devices.
The working principle of the high-pressure digestion tank of the embodiment is as follows: the sample to be processed is placed in the sample loading inner tank, the temperature is synchronously measured through the infrared scanning temperature measuring device and the temperature measuring optical fiber, the pressure is relieved through the first pressure relief port and the second pressure relief port, and the bearable pressure is not lower than 10 MPa.
The high pressure digestion tank of this embodiment can realize accurate temperature measurement, can realize again the automatic physics pressure release under the extreme pressure condition, has promoted the security performance.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A high-pressure digestion tank is characterized by comprising a sample loading inner tank, a tank frame, a protective outer tank, a tank bottom gasket, an elastic gland, a screw pressure pad, a fixing screw, an infrared scanning temperature measuring device, a temperature measuring optical fiber and an optical fiber quartz sleeve; the protective outer tank is sleeved outside the sample-holding inner tank, the protective outer tank is arranged on the tank frame through the tank bottom gasket, the infrared scanning temperature measuring device is fixed on the tank frame, and the infrared scanning temperature measuring device is in contact with the protective outer tank; the elastic pressing cover is sleeved and sealed on the top of the sample loading inner tank, the screw pressing pad is placed above the elastic pressing cover, and the fixing screw is fixed above the screw pressing pad through the tank frame; the centers of the fixing screw, the screw pressure pad and the elastic gland are all provided with concentric through holes; the optical fiber quartz sleeve is fixed below the elastic gland through threads, the optical fiber quartz sleeve is positioned inside the sample loading inner tank, the temperature measuring optical fiber penetrates through the concentric through hole and is suspended inside the optical fiber quartz sleeve, and the optical fiber quartz sleeve is provided with a plurality of blind holes; a pressure measuring channel penetrates through the elastic gland, the pressure measuring channel is communicated with the interior of the sample loading inner tank, a pressure testing interface and a pressure relief device are connected to the pressure measuring channel, a through film is arranged on the pressure relief device, and a first pressure relief opening is formed in the rear end of the through film; the side wall of the elastic gland is provided with a plurality of second pressure relief ports, and a plurality of second pressure relief hole grooves are formed below the elastic gland; the second pressure relief ports correspond to the second pressure relief hole grooves one to one and are communicated through second pressure relief channels.
2. The high pressure digestion tank according to claim 1, wherein said tank rack comprises a load-bearing base, a connecting rack and a fixed top seat; the bearing base, the connecting frame and the fixed top seat form an integral structure, a bearing space is formed by the bearing base, the connecting frame and the fixed top seat, and the bottom of the protective outer tank is fixed above the bearing base through the tank bottom gasket; the center of the fixed top seat is provided with a threaded hole, and the fixed screw penetrates through the threaded hole and is fixed on the tank frame.
3. The high pressure digestion tank according to claim 1, wherein the number of the second pressure relief ports is 4, and the second pressure relief ports are distributed on the side surface of the elastic gland at equal intervals.
4. The high-pressure digestion tank according to claim 1, wherein the aperture of the second pressure relief port is 0.5-0.8 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020350027.4U CN212391322U (en) | 2020-03-19 | 2020-03-19 | High-pressure digestion tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020350027.4U CN212391322U (en) | 2020-03-19 | 2020-03-19 | High-pressure digestion tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212391322U true CN212391322U (en) | 2021-01-22 |
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ID=74247342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020350027.4U Active CN212391322U (en) | 2020-03-19 | 2020-03-19 | High-pressure digestion tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212391322U (en) |
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2020
- 2020-03-19 CN CN202020350027.4U patent/CN212391322U/en active Active
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