CN201210154Y - Device for evaluating heat oxidation stability of organic heat carrier - Google Patents
Device for evaluating heat oxidation stability of organic heat carrier Download PDFInfo
- Publication number
- CN201210154Y CN201210154Y CNU2008201081294U CN200820108129U CN201210154Y CN 201210154 Y CN201210154 Y CN 201210154Y CN U2008201081294 U CNU2008201081294 U CN U2008201081294U CN 200820108129 U CN200820108129 U CN 200820108129U CN 201210154 Y CN201210154 Y CN 201210154Y
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- aluminium
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Abstract
The utility model relates to a device used to evaluate the thermal oxidation stability of an organic heat carrier, which comprises a temperature control meter (2), a temperature sensor (7), an electric heating wire (16), a thermostatic tank body (4), a thermostatic tank door (11) and an aluminum bath (9) arranged in the thermostatic tank, wherein, the temperature sensor (7) which is connected with the temperature control meter (2) is arranged in a hole (13) of the aluminum bath (9). Since the temperature sensor (7) which is connected with the temperature control meter (2) is arranged inside the aluminum bath (9), the temperature of the aluminum bath can be more accurately controlled, so that the experimental precision can be increased.
Description
Technical field
The utility model relates to a kind of device of evaluating the organic heat carrier thermal oxidation stability.
Background technology
With indirect mode heat is called thermal barrier from the heat transfer medium that heating unit is delivered to hot cell, industrial thermal barrier can be divided into organic heat carrier and inorganic thermal barrier two big classes.Organic heat carrier is commonly called as conduction oil, is used for high-temperature heating process and accurately controls heating and cooling process or single cooling purpose in temperature, the same system.Organic heat carrier because have thermal efficiency height, conduct heat evenly, temperature is easy to control, equipment is not had burn into carries characteristics such as convenient, has now developed into a kind of thermal barrier that use is the widest, consumption is maximum.
Oxidation stability is meant the effect of organic heat carrier opposing air (or oxygen) and keeps its character that the ability of permanent change does not take place.Oxidation stability is one of important indicator of estimating the organic heat carrier quality, but its organic heat carrier for ingress of air in the use is particularly important.
The industry standard SH/T of Sinopec 0209 provides a kind of thermal stability determination method of hydraulic oil, and the qualification test device that it adopts comprises automatic convection current constant temperature oven of electric heating and aluminium bath; The automatic convection current constant temperature oven of electric heating is a conventional oven that has temperature control system, and heater strip is positioned at the constant temperature oven bottom, and it is a cylindrical aluminium block that aluminium is bathed, and aluminium block upper edge circumference evenly has 6 beaker holes, is used to place sample; During test, aluminium is bathed the position that is shelved on from constant temperature oven working plate 15cm height, and the point for measuring temperature of temperature control system is positioned at aluminium and bathes the top.This installs simplicity of design, and easy operating has avoided thermostatic bath to adopt the inconvenience of oil bath, also can be used to simulate simultaneously the organic heat carrier state of ingress of air at high temperature in the expansion slot.Temperature variation is between ± 1 ℃ in the testing requirements constant temperature oven, but in process of the test, find, the indicated temperature of temperature that aluminium is bathed and constant temperature oven temperature element differs greatly, even can reach more than 50 ℃, and the temperature near two beaker holes at constant temperature chamber door place is minimum, reaches more than 2 ℃ with the maximum temperature deviation in other beaker hole.
The utility model content
At the deficiencies in the prior art, the invention provides a kind of device that is used to evaluate the organic heat carrier thermal oxidation stability, this device can be controlled the aluminium bath temperature more accurately, improves the degree of accuracy of test.
A kind of device of evaluating the organic heat carrier thermal oxidation stability comprises temperature control instrument 2, temperature sensor 7, electrical heating wire 16, thermostatic box 4, constant temperature chamber door 11 and is arranged on the interior aluminium of constant temperature oven and bathes 9; Wherein, the temperature sensor 7 that links with temperature control instrument 2 is arranged on aluminium and bathes in 9 the hole 13.
The utility model is located at aluminium by the temperature sensor with the Thermostat Temperature Control system and bathes inside, can control the aluminium bath temperature more accurately, makes the indicated temperature of constant temperature oven represent real test temperature.
Description of drawings
Further specify the utility model below in conjunction with the drawings and specific embodiments.
When Fig. 1 is in opening for the constant temperature chamber door, the front view of the utility model device.
Fig. 2 bathes 9 vertical view for aluminium.
Fig. 3 bathes 9 sectional views along B-B ' line for aluminium.
When Fig. 4 was in closed condition for the constant temperature chamber door, the utility model device was along the sectional view of A-A ' line.
Wherein, 1-controller dial plate; The 2-temperature control instrument; 3-overtemperature outage instrument; The 4-thermostatic box; The 5-air vent; 6-aluminium steam-inflated plastic shroud plate; The 7-temperature sensor; Thermal-insulating sealing bar in the 8-; 9-aluminium is bathed; The outer thermal-insulating sealing bar of 10-; 11-constant temperature chamber door; 15-aluminium is bathed leg; The 16-electrical heating wire; The 17-insulation material.
Embodiment
As shown in Figure 1, device described in the utility model comprises temperature control instrument 2, temperature sensor 7, electrical heating wire 16, thermostatic box 4, constant temperature chamber door 11 and is arranged on the interior aluminium bath 9 of constant temperature oven.As shown in Figures 2 and 3, it is cylindrical aluminium blocks that aluminium bathes 9, bathes 9 circumference along aluminium and evenly has beaker hole 12, is used to place the beaker that is added with test specimen.The number in beaker hole 12 can be selected according to the needs of test; The height in beaker hole 12 and diameter depend on the height and the external diameter of beaker, and the height in preferred beaker hole 12 is slightly less than the height of beaker, and the slightly larger in diameter in beaker hole 12 is in the external diameter of beaker.
As shown in Figures 2 and 3, in the device described in the utility model, the center of aluminium bath 9 has hole 13, is used for laying temperature sensor 7.Temperature control instrument 2 links with temperature sensor 7 and electrical heating wire 16, according to the signal of temperature sensor 13, adjusts the output to electrical heating wire 16, thereby the aluminium bath temperature is controlled at design temperature.13 most preferred positions, hole are at the center of aluminium bath 9, but therefore formation is to restriction of the present utility model, because metallic aluminium has thermal conductive resin, so the utility model all can be realized in any position that aluminium is bathed in hole 13.
In the prior art, the temperature element of Thermostat Temperature Control system is positioned at aluminium and bathes the top, and the indicated temperature of actual temperature that aluminium is bathed and constant temperature oven temperature element differs greatly, even can reach more than 50 ℃.The utility model is located at aluminium by the temperature sensor with the Thermostat Temperature Control system and bathes inside, can control the aluminium bath temperature more accurately, improves the degree of accuracy of test.
As shown in Figure 4, in the device described in the utility model, electrical heating wire 16 uniform winding directly heat aluminium and bathe 9 outside the cylinder of aluminium bath 9.Electrical heating elements in the utility model is not limited to electrical heating wire, and any electrical heating elements that can directly heat the aluminium bath as heat tape, includes in scope of the present utility model.
In the prior art, aluminium is bathed the position that is shelved on from constant temperature oven working plate 15cm height, and electrical heating wire is positioned under the constant temperature oven working plate.In the process of the test, there is hysteresis to a certain degree in the heating that aluminium is bathed, and temperature fluctuation is also bigger.The utility model is bathed with aluminium by electrical heating elements and is contacted, and directly heat aluminium and bathe, the hysteresis that can reduce to heat, temperature controlling is also more steady.
The employed constant temperature oven of prior art is an a conventional oven, between its oven door and oven body sealing bad, and be an air chamber in the oven door.Test is found: the heat insulation effect of a conventional oven chamber door is relatively poor, cause aluminium bathe in the temperature difference in each beaker hole, minimum near the temperature in two beaker holes at constant temperature chamber door place, can reach more than 2 ℃ with the maximum temperature deviation in other beaker hole.As shown in Figure 1 and Figure 4, in the device described in the utility model, thermal-insulating sealing bar 8 on thermostatic box 4, being equipped with, thermal-insulating sealing bar 10 outside being equipped with on constant temperature chamber door 11 adds insulation material 17 in constant temperature chamber door 11.The utility model is by installing thermal-insulating sealing bar on thermostatic box 4 and/or constant temperature chamber door 11, and in constant temperature chamber door 11, add insulation material 17, making the maximum temperature deviation of each sample room of testing simultaneously is 1 ℃, can guarantee the thermal oxidation stability of each test specimen of evaluation under identical condition.
As shown in Figure 1 and Figure 4, the utility model is provided with stainless aluminium steam-inflated plastic shroud plate 6 between aluminium bath 9 and thermostatic box 4, the sample in electrical heating wire 16 and the beaker is isolated fully.In the process of the test, can be heated volatilization and condense in constant temperature oven bottom and aluminium is bathed on 9 of sample is difficult to clear up; Also exist simultaneously certain potential safety hazard.The utility model is isolated electrical heating wire 16 and test specimen fully by installing aluminium steam-inflated plastic shroud plate between aluminium bath 9 and thermostatic box 4, has both helped the cleaning in the constant temperature oven, has guaranteed the safety of test again.
Device described in the utility model also is provided with overtemperature outage instrument 3, the aluminium bath temperature is monitored in real time, to guarantee experimental safe.As shown in Figure 3, aluminium is bathed 9 and is also had hole 14, is used to place the temperature sensor that links with overtemperature outage instrument 3.In the experimentation, in case the Thermostat Temperature Control system breaks down, cause the aluminium bath temperature to surpass default alarm temperature, overtemperature outage instrument 3 can be cut off the power supply of electrical heating wire 16 according to the signal of temperature sensor transmission, stops heating.
Claims (7)
1. device of evaluating the organic heat carrier thermal oxidation stability, the aluminium that comprises temperature control instrument (2), temperature sensor (7), electrical heating wire (16), thermostatic box (4), constant temperature chamber door (11) and be arranged in the constant temperature oven is bathed (9), it is characterized in that the temperature sensor (7) that links with temperature control instrument (2) is arranged in the hole (13) of aluminium bath (9).
2. according to the described device of claim 1, it is characterized in that electrical heating wire (16) is wrapped in aluminium and bathes outside the cylinder of (9), directly heat aluminium and bathe (9).
3. according to claim 1 or 2 described devices, it is characterized in that, on thermostatic box (4) and/or the constant temperature chamber door (11) the thermal-insulating sealing bar is housed, insulation material (17) is housed in the constant temperature chamber door (11).
4. according to claim 1 or 2 described devices, it is characterized in that, bathe between (9) and the thermostatic box (4) at aluminium and be provided with aluminium steam-inflated plastic shroud plate (6).
5. according to the described device of claim 3, it is characterized in that, bathe between (9) and the thermostatic box (4) at aluminium and be provided with aluminium steam-inflated plastic shroud plate (6).
6. according to claim 1 or 2 described devices, it is characterized in that device also is provided with overtemperature outage instrument (3), the temperature sensor that links with overtemperature outage instrument (3) is arranged in the hole (14) of aluminium bath (9).
7. according to the described device of claim 3, it is characterized in that device also is provided with overtemperature outage instrument (3), the temperature sensor that links with overtemperature outage instrument (3) is arranged in the hole (14) of aluminium bath (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201081294U CN201210154Y (en) | 2008-05-29 | 2008-05-29 | Device for evaluating heat oxidation stability of organic heat carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201081294U CN201210154Y (en) | 2008-05-29 | 2008-05-29 | Device for evaluating heat oxidation stability of organic heat carrier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201210154Y true CN201210154Y (en) | 2009-03-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201081294U Expired - Lifetime CN201210154Y (en) | 2008-05-29 | 2008-05-29 | Device for evaluating heat oxidation stability of organic heat carrier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201210154Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102998327A (en) * | 2012-11-16 | 2013-03-27 | 北京市太阳能研究所集团有限公司 | Quick thermal stability detector and detection method thereof |
| CN103091365A (en) * | 2011-11-04 | 2013-05-08 | 中国石油化工股份有限公司 | Method for determining oxidation stability and corrosion of lubricating oil |
| CN108801897A (en) * | 2018-08-28 | 2018-11-13 | 南京正明观新材料有限公司 | A method of measuring the Oxidation Stability of Oil Film of Bearing Oil |
| CN115950511A (en) * | 2023-03-08 | 2023-04-11 | 南通市计量检定测试所 | Intelligent control integrated type volume correction instrument detection device and detection method |
-
2008
- 2008-05-29 CN CNU2008201081294U patent/CN201210154Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103091365A (en) * | 2011-11-04 | 2013-05-08 | 中国石油化工股份有限公司 | Method for determining oxidation stability and corrosion of lubricating oil |
| CN102998327A (en) * | 2012-11-16 | 2013-03-27 | 北京市太阳能研究所集团有限公司 | Quick thermal stability detector and detection method thereof |
| CN108801897A (en) * | 2018-08-28 | 2018-11-13 | 南京正明观新材料有限公司 | A method of measuring the Oxidation Stability of Oil Film of Bearing Oil |
| CN115950511A (en) * | 2023-03-08 | 2023-04-11 | 南通市计量检定测试所 | Intelligent control integrated type volume correction instrument detection device and detection method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090318 |
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| CX01 | Expiry of patent term |