CN201145691Y - Quality testing sublimation furnace temperature and pressure control apparatus - Google Patents
Quality testing sublimation furnace temperature and pressure control apparatus Download PDFInfo
- Publication number
- CN201145691Y CN201145691Y CNU2008200690755U CN200820069075U CN201145691Y CN 201145691 Y CN201145691 Y CN 201145691Y CN U2008200690755 U CNU2008200690755 U CN U2008200690755U CN 200820069075 U CN200820069075 U CN 200820069075U CN 201145691 Y CN201145691 Y CN 201145691Y
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- temperature
- control device
- furnace
- quartz ampoule
- pressure control
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Abstract
The utility model relates to a temperature and pressure control device for testing the quality of a subliming furnace is mainly used for an analysis device testing the purity of melamine through sublimation in melamine chemical engineering enterprises or fine chemical product quality arbitral mechanisms. The utility model solves the bottleneck problem of inconsistent control of a sublimation temperature control device and a pressure relief device, thereby effectively ensuring the normal operation of the test. The temperature and pressure control device mainly consists of a silica tube, rubber plugs, a thermocouple, a thermal resistor, a stainless steel tube, a vacuum gauge, a vacuum pump and a needle valve which are connected together. The rubber plugs are adaptively arranged on two ends of the silica tube, wherein one end of the silica tube is hermetically connected with the temperature control thermocouple and the thermal resistor showing the temperature of the furnace, and the other end of the silica tube is hermetically connected with a stainless steel exhaust pipe to meet the pressure relief condition. The temperature and pressure control device is applied to the sublimation equipment to avoid the over temperature which burns out the temperature control device and a furnace body heating system, the block of the exhaust pipe and the scrap of the equipment. The temperature and pressure control device which ensures the safe running of the subliming furnace is suitable for the routine quality test.
Description
One, technical field:
The utility model relates to melamine chemical enterprise or fine chemical product quality arbitration mechanism, especially a kind of quality inspection subliming furnace temperature-control pressure-control device.
Two, background technology:
In melamine purity quality inspection process,, continue distillation 2 hours, the test condition strictness under the decompression control 0.67-4.00KPa condition owing to 305 ± 10 ℃ of subliming furnace temperature controls.The triamine sublimation process, the temperature control overtemperature is too high, and then condensed polymer, monamide diamides and so on impurity also distils totally in the sample, causes test failure.Even burn out temperature regulating device and body of heater heating system, write-off equipment.Temperature control is crossed low and decompression does not satisfy condition, and then sample can not distil, and can't normally test.At present, exchange of technology is known, adopts the enterprise of subliming furnace quality inspection triamine purity, all exists the temperature control drift too high, and the situation of damage equipment does not have the device in direct dynamic temperature control in quartz ampoule two ends and decompression coordination in various degree.Subliming furnace equipment adopts the burner hearth outside surface to be shaped on the monofilament groove of screw type, heating element alloy filament winding heats in groove, thermopair inserts burner hearth sensing temperature control, under reduced pressure, cause interior displays temperature of quartzy tube chamber and burner hearth temperature control inconsistent, cause serious overtemperature or radiation overtemperature, cause test failure, even burning out temperature regulating device and body of heater heating system, reduced pressure line stops up.
Three, summary of the invention:
The purpose of this utility model provides a kind of quality inspection subliming furnace temperature-control pressure-control device, adopt this device directly to coordinate to control quartzy intraluminal sublimation temperature effectively and satisfy reduced pressure, solve the bottleneck problem of distillation temperature regulating device and the inharmonious control of reliever, the purpose of this utility model is to realize like this, in furnace shell, fixing the stove ceramic pipe, connecting the circuit silk on ceramic pipe at stove; Quartz ampoule is enclosed within the ceramic pipe, there is rubber plug at the two ends of quartz ampoule, one end rubber of quartz ampoule is plugged with two holes, the thermopair and the thermal resistance of appropriate length installed in sealing respectively, both keeping parallelisms in tube chamber are non-intersect, the other end has two rubber plugs, three holes (second interval 20cm distance plays a balance fixation) are arranged on two rubber plugs, and three parallel disjoint φ 6mm stainless steel exhaust tubes are tightly connected, one connects the reduced vacuum meter, one connects φ 6mm stainless steel aciculiform valve (air intake), another root connects the vacuum pump that has the surge flask device, and whole connecting link is all smeared with 704 fluid sealants and solidified sealing, and assurance device is air tight; Carriage is positioned at the middle part of quartz ampoule, and quartz boat is positioned at above the carriage; Temperature controller is installed in the middle of power supply and the temperature control WRN-010 type NiCr-NiSi thermopair, and thermopair is connected on the thermal resistance.
This device is applied to avoid overtemperature in the subliming furnace equipment, burns out temperature regulating device and body of heater heating system, stops up exhaust tube, write-off equipment; Ensured the subliming furnace safe operation, customary daily quality inspection.
Four, description of drawings:
Fig. 1 is for to be a kind of structural representation of quality inspection subliming furnace temperature-control pressure-control device, among the figure 1, furnace shell 2, electric furnace heating wire 3, stove be with ceramic pipe 4, quartz ampoule 5, rubber plug 6, quartz boat 7, carriage 8, surge flask 9, vacuum pump 10, power supply 11, temperature controller 12, thermocouple thermometer 13, vacuum meter 14, thermal resistance 15, thermopair
Five, embodiment:
In Fig. 1, in furnace shell 1, fixing stove with ceramic pipe 3, connecting circuit silk 2 at stove on ceramic pipe 3; Quartz ampoule 4 is enclosed within the ceramic pipe 3, there is rubber plug 5 at the two ends of quartz ampoule 4, one end rubber plug 5 of quartz ampoule 4 has two holes, the thermopair 15 and the thermal resistance 14 of appropriate length installed in sealing respectively, both keeping parallelisms in tube chamber are non-intersect, two rubber plugs 5 of the other end have three holes (second interval 20cm distance plays a balance fixation), and three parallel disjoint φ 6mm stainless steel exhaust tubes are tightly connected, one connects reduced vacuum meter 13, one connects φ 6mm stainless steel aciculiform valve (air intake), another root connects the vacuum pump 9 that has surge flask 8 devices, whole connecting link is all smeared with 704 fluid sealants and is solidified sealing, and assurance device is air tight; Carriage 7 is positioned at the middle part of quartz ampoule 4, and quartz boat 6 is positioned at above the carriage; Temperature controller 11 is installed in the middle of power supply 10 and the thermopair 15, and thermocouple thermometer 12 is connected on the thermal resistance 14.
Claims (2)
1, a kind of quality inspection subliming furnace temperature-control pressure-control device, it is to be formed by connecting with pottery (3), quartz ampoule (4), rubber plug (5), quartz boat (6), carriage (7), surge flask (8), vacuum pump (9), power supply (10), temperature controller (11), thermocouple thermometer (12), vacuum meter (13), thermal resistance (14) and thermopair (15) by furnace shell (1), electric furnace heating wire (2), stove, it is characterized in that: in furnace shell (1), fixing stove with ceramic pipe (3), connecting circuit silk (2) on ceramic pipe (3) at stove; Carriage (7) is positioned at the middle part of quartz ampoule (4), and quartz boat (6) is positioned at above the carriage (7); Temperature controller (11) is installed in the middle of power supply (10) and the thermopair (15), and thermocouple thermometer (12) is connected on the thermal resistance (14).
2, a kind of quality inspection subliming furnace temperature-control pressure-control device according to claim 1, it is characterized in that: quartz ampoule (4) is enclosed within the ceramic pipe (3), there is rubber plug (5) at the two ends of quartz ampoule (4), one end rubber plug (5) of quartz ampoule (4) has two holes, sealing is installed with thermopair (15) and thermal resistance (14) respectively, both keeping parallelisms in tube chamber are non-intersect, two rubber plugs of the other end (5) have three holes, second interval 20cm distance, three parallel disjoint stainless steel exhaust tubes are tightly connected, one connects reduced vacuum meter (13), one connects stainless steel aciculiform valve, another root connects the vacuum pump (9) that has surge flask (8) device, and whole connecting link is all smeared with 704 fluid sealants and solidified sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200690755U CN201145691Y (en) | 2008-01-21 | 2008-01-21 | Quality testing sublimation furnace temperature and pressure control apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200690755U CN201145691Y (en) | 2008-01-21 | 2008-01-21 | Quality testing sublimation furnace temperature and pressure control apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201145691Y true CN201145691Y (en) | 2008-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200690755U Expired - Fee Related CN201145691Y (en) | 2008-01-21 | 2008-01-21 | Quality testing sublimation furnace temperature and pressure control apparatus |
Country Status (1)
| Country | Link |
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| CN (1) | CN201145691Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425946A (en) * | 2011-11-30 | 2012-04-25 | 中国科学院地质与地球物理研究所 | Vacuum focusing furnace device for inert gas diffusion experiment |
| CN102889946A (en) * | 2012-10-25 | 2013-01-23 | 杭州师范大学 | Device for sensing and measuring temperature and salinity of water body on surface layer |
| CN103383190A (en) * | 2013-08-06 | 2013-11-06 | 深圳市沃尔核材股份有限公司 | Energy-saving heating furnace |
| CN111504762A (en) * | 2020-04-16 | 2020-08-07 | 中南大学 | A heating device and method for simulating thermal damage of roadway surrounding rock |
| CN112197880A (en) * | 2020-09-21 | 2021-01-08 | 洛阳欧祺精密零件制造有限公司 | Platinum rhodium wire thermocouple protection device for vacuum sintering furnace |
| CN113521790A (en) * | 2021-08-27 | 2021-10-22 | 浙江赛威科光电科技有限公司 | A kind of OLED material vacuum sublimation purification equipment |
-
2008
- 2008-01-21 CN CNU2008200690755U patent/CN201145691Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425946A (en) * | 2011-11-30 | 2012-04-25 | 中国科学院地质与地球物理研究所 | Vacuum focusing furnace device for inert gas diffusion experiment |
| CN102425946B (en) * | 2011-11-30 | 2014-04-09 | 中国科学院地质与地球物理研究所 | Vacuum focusing furnace device for inert gas diffusion experiment |
| CN102889946A (en) * | 2012-10-25 | 2013-01-23 | 杭州师范大学 | Device for sensing and measuring temperature and salinity of water body on surface layer |
| CN103383190A (en) * | 2013-08-06 | 2013-11-06 | 深圳市沃尔核材股份有限公司 | Energy-saving heating furnace |
| CN103383190B (en) * | 2013-08-06 | 2015-07-15 | 深圳市沃尔核材股份有限公司 | Energy-saving heating furnace |
| CN111504762A (en) * | 2020-04-16 | 2020-08-07 | 中南大学 | A heating device and method for simulating thermal damage of roadway surrounding rock |
| CN111504762B (en) * | 2020-04-16 | 2021-09-17 | 中南大学 | Heating device and method for simulating heat damage of surrounding rock of roadway |
| CN112197880A (en) * | 2020-09-21 | 2021-01-08 | 洛阳欧祺精密零件制造有限公司 | Platinum rhodium wire thermocouple protection device for vacuum sintering furnace |
| CN113521790A (en) * | 2021-08-27 | 2021-10-22 | 浙江赛威科光电科技有限公司 | A kind of OLED material vacuum sublimation purification equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081105 |