CN204694665U - Flash-point pick-up unit - Google Patents
Flash-point pick-up unit Download PDFInfo
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- CN204694665U CN204694665U CN201520231255.9U CN201520231255U CN204694665U CN 204694665 U CN204694665 U CN 204694665U CN 201520231255 U CN201520231255 U CN 201520231255U CN 204694665 U CN204694665 U CN 204694665U
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Abstract
The utility model provides a kind of flash-point pick-up unit, is placed in test cabinet, comprises: heating plate, is provided with heater strip or heating plate, for heating following sample cup; Sample cup, for placing oil product, fits with the lower surface of heating plate; High-field electrode, is fixed on heating plate, and is deep into down in sample cup, discharges in test cabinet for generation of electric arc; Sample temperature sensor, is deep in oil product, for measuring the temperature of oil product in sample cup; Pressure transducer, with the conducting of described sample cup air, for sensing the pressure in sample cup.Described flash-point pick-up unit adopts top cover type of heating, and heating is rapid and evenly, in addition, arc ignition makes igniting more stable and this flash-point pick-up unit only needs about 1mL ± 0.1mL sample.
Description
Technical field
The utility model relates to oil product industry temperature measuring equipment technical field, more specifically, relates to the flash-point detecting instrument that a kind of trace is remained silent.
Background technology
Flash-point be petroleum products under prescribed conditions, be heated to its steam and air Mixture and flame contact and send the minimum temperature that scintillation is.Flash-point, for representing oil product to reaction that is hot and flame under controlled laboratory conditions, is one of important indicator of assessment oil fire danger.Current domestic mensuration petroleum products close flash point all adopts GB/T 261 method.GB/T 261 formulates with reference to ISO2719 " Flash Point for Petroleum Products determination method (Bin Siji mono-Martin remain silent agar diffusion method) ", and the method test duration is long, consume the shortcomings such as sample size is large.
Utility model content
The utility model is to solve the above-mentioned technical matters that exists in prior art and make, its object is to provide a small amount of oil sample of a kind of use to detect the flash-point pick-up unit of oil flash point fast.
To achieve these goals, the utility model provides a kind of flash-point pick-up unit, is placed in test cabinet, comprises: heating plate, is provided with heater strip or heating plate, for heating following sample cup; Sample cup, for placing oil product, fits with the lower surface of heating plate; High-field electrode, is fixed on heating plate, and is deep into down in sample cup, discharges in test cabinet for generation of electric arc; Sample temperature sensor, is deep in oil product, for measuring the temperature of oil product in sample cup; Pressure transducer, is communicated with described sample cup, for sensing the pressure in sample cup.
Described flash-point pick-up unit, wherein, described flash-point pick-up unit also comprises control module, for the heating, cooling of oil product in Quality control cup, programming rate and cooling rate, accept temperature value that sample temperature sensor and pressure transducer detect and force value, also for controlling described high-field electrode with the electric discharge of the temperature interval of regulation.
Described flash-point measurement mechanism, wherein, described test cabinet closes but does not close, volume is 4 mL, the electrical discharge arc of described high-field electrode is 3J, and the amount putting into oil product in described sample cup is 1mL ± 0.1mL, and in described sample cup, the programming rate of oil product is 5.5 ± 0.825 DEG C/mL.
Described flash-point pick-up unit, wherein, described flash-point pick-up unit also bag photoelectricity positioning unit, for making sample cup warehouse entry, delivering from godown and locate.
Described flash-point pick-up unit, wherein, described heating plate is provided with draft tube, for injecting gas in sample cup, is communicated with by connecting pipe with described pressure transducer.
Described flash-point pick-up unit, wherein, described flash-point pick-up unit also comprises air pump, by described draft tube to injecting gas in sample cup.
Described flash-point pick-up unit, wherein, the injection rate IR of described gas is 1.5 mL.
Described flash-point pick-up unit, wherein, described sample cup inwall is stepped, comprises three ladders, and wherein, the first ladder, contacts with heating plate lower surface; Second ladder, described high-field electrode is inserted therein; 3rd ladder, for holding oil product to be measured, sample temperature sensor is inserted therein.
Described flash-point pick-up unit, wherein, described first ladder is back taper.
Described flash-point pick-up unit, wherein, the volume of described 3rd step trough is equal with the volume of oil product to be measured.
Flash-point pick-up unit described in the utility model adopts top cover type of heating to replace the bottom-heated of traditional flash point tester, and heating is rapid and evenly, in addition, arc ignition makes igniting more stable.This flash-point pick-up unit only needs about 1mL ± 0.1mL sample, approximately need 50-70mL oil sample to compare with conventional apparatus, this device sample size reduces, and not only substantially reduces test environmental pollution, also make oil sample programming rate significantly accelerate, testing efficiency significantly improves simultaneously.Normally closed but the blow-by state of test cabinet, thus make also to be in state that is closed but that do not close with the sample cup of its laminating, so both can make to keep the atmospheric pressure consistent with environment in cup, oil gas can be made again not to external diffusion, avoid the situation that in Open Cup test method, oil vapour environmental pollution and the volatilization due to light composition cause result more higher than actual value.
Accompanying drawing explanation
By reference to following embodiment and claims content and by reference to the accompanying drawings, other object of the present utility model and result will be understood and easy to understand more.In the accompanying drawings:
Fig. 1 is the schematic front view of the utility model flash-point pick-up unit;
Fig. 2 is the schematic top plan view of the utility model flash-point pick-up unit;
Fig. 3 is the cut-open view along A-A line in Fig. 2;
In the accompanying drawings, identical Reference numeral indicates similar or corresponding feature or function.
Embodiment
In the following description, for purposes of illustration, in order to provide the complete understanding to one or more embodiment, many details have been set forth.But, clearly, also these embodiments can be realized when there is no these details.In other example, one or more embodiment for convenience of description, known structure and equipment illustrate in block form an.
Come below with reference to accompanying drawings to be described in detail according to each embodiment of the present utility model.
Fig. 1 is the schematic front view of the utility model flash-point pick-up unit, Fig. 2 is the schematic top plan view of the utility model flash-point pick-up unit, as illustrated in fig. 1 and 2, be placed in test cabinet (not shown) that is closed but that do not close, preferably, the volume of described test cabinet is 4 mL, and flash-point pick-up unit 100 comprises:
Heating plate 110, is provided with heater strip or heating plate, and for heating following sample cup 120, adopt top cover type of heating to replace the bottom-heated of traditional flash point tester, heating is rapid and even;
Sample cup 120, for placing oil product, fit with the lower surface of heating plate 110, preferably, the amount putting into oil product in sample cup 120 is 1mL ± 0.1mL, approximately needs 50-70mL oil sample to compare with conventional apparatus, this device sample size reduces, not only substantially reduce test environmental pollution, also make oil sample programming rate significantly accelerate, testing efficiency significantly improves simultaneously;
High-field electrode 130, is fixed on heating plate, and is deep into down in sample cup 120, discharges in test cabinet for generation of electric arc, and adopt arc ignition to make igniting more stable, preferably, each electrical discharge arc of described high-field electrode is 3J;
Sample temperature sensor 140, is deep in oil product, for measuring the temperature of oil product in sample cup 120;
Pressure transducer 150, with the conducting of described sample cup 120 air, for sensing the pressure in 120 glasss, sample.
Preferably, described sample cup 120 inwall is stepped, comprises three ladders, and wherein, the first ladder 121, contacts with heating plate 110 lower surface, preferably, in back taper, increases the contact area of the first ladder 121 and heating plate 110 lower surface; Second ladder 122, described high-field electrode 130 is inserted therein; 3rd ladder 123, for holding oil product to be measured, sample temperature sensor is inserted therein, and preferably, the volume of the 3rd ladder 123 is equal with oil product volume to be measured, and such as, oil product to be measured is 1 mL, then the volume of the 3rd ladder 123 is 1 mL.
In addition, preferably, described flash-point pick-up unit 100 also comprises control module (not shown), for the heating, cooling of oil product in Quality control cup 120, programming rate and cooling rate, preferably, in Quality control cup 120, oil product heats with 5.5 ± 0.825 DEG C/mL programming rate.In addition, described control module also accepts temperature value that sample temperature sensor and pressure transducer detect and force value.Such as, moreover described control module, also for controlling described high-field electrode with the electric discharge of the temperature interval of regulation, discharges with the temperature interval of 2 DEG C.
The function of above-mentioned control module can be realized by one or more chip or integrated circuit.
In addition, preferably, described flash-point pick-up unit 100 also comprises photoelectricity positioning unit (not shown), for making sample cup warehouse entry, delivering from godown and locate, and such as optoelectronic switch, proximity switch, limit switch etc.
The method of operating of the utility model flash-point pick-up unit is as follows: be the closed of 4mL but in packing less test cabinet at a volume, to the 1mL sample 5.5 DEG C/mL programming rate heating in sample cup for liquid, discharge at test cabinet with the electric arc of 3J/ arc in predetermined time interval, fire, pressure jump in sample cup, captured by pressure transducer, so time temperature be the close flash point value of this sample.
Normally closed but the blow-by state of test cabinet, thus make also to be in state that is closed but that do not close with the sample cup 120 of its laminating, so both can make to keep the atmospheric pressure consistent with environment in cup, oil gas can be made again not to external diffusion, avoid the situation that in Open Cup test method, oil product steam environmental pollution and the volatilization due to light composition cause result more higher than actual value.
Fig. 2 is the schematic top plan view of the utility model flash-point pick-up unit, and Fig. 3 is the cut-open view along A-A line in Fig. 2, and as shown in Figures 2 and 3, this flash-point pick-up unit 100 also comprises:
Draft tube 111, be fixed on heating plate 110, for injecting air in sample cup 120, one end and the conducting of sample cup 120 air, the other end is connected with air pump 112, and it can be positioned at test cabinet, also can be positioned at outside test cabinet, preferably, after each igniting or with the temperature interval (such as 2 DEG C) of regulation, in sample cup 120, the air of 1.5mL is supplemented;
Communicating pipe 151, one end Bonding pressure sensor 150, the other end is connected to draft tube 111, makes pressure transducer can sense pressure in sample cup 120.
Described flash-point pick-up unit 100 is closed but in packing less test cabinet at one, heated to oil product by constant heating rate by heating plate 110, and discharge and gas injection in sample cup 120 with the temperature interval of regulation, when product vapour reaches a certain temperature, make sample vapors that moment scintillation occur by effluve, the oil product temperature that test cabinet moment produces when being greater than 20kPa pressure due to scintillation is flash-point value.
The utility model flash-point pick-up unit 100 comprises draft tube 111, after each igniting, injects air, the steam of oil product is fully contacted with air, shortens the time of next time lighting a fire, accelerate measuring speed in sample cup.
Although disclosed content shows exemplary embodiment of the present utility model above, it should be noted that under the prerequisite not deviating from the scope that claim limits, can multiple change and amendment be carried out.In addition, although element of the present utility model can describe or requirement with individual form, also it is contemplated that to have multiple element, is individual element unless explicitly limited.
Claims (10)
1. a flash-point pick-up unit, is placed in test cabinet, it is characterized in that described flash-point pick-up unit comprises:
Heating plate, is provided with heater strip or heating plate, for heating following sample cup;
Sample cup, for placing oil product, fits with the lower surface of heating plate;
High-field electrode, is fixed on heating plate, and is deep into down in sample cup, discharges in test cabinet for generation of electric arc;
Sample temperature sensor, is deep in oil product, for measuring the temperature of oil product in sample cup;
Pressure transducer, with the conducting of described sample cup air, for sensing the pressure in sample cup.
2. flash-point pick-up unit according to claim 1, it is characterized in that, described flash-point pick-up unit also comprises control module, for the heating, cooling of oil product in Quality control cup, programming rate and cooling rate, accept temperature value that sample temperature sensor and pressure transducer detect and force value, also for controlling described high-field electrode with the electric discharge of the temperature interval of regulation.
3. flash-point pick-up unit according to claim 1, it is characterized in that, described test cabinet closes but does not close, volume is 4 mL, the electrical discharge arc of described high-field electrode is 3J, the amount putting into oil product in described sample cup is 1mL ± 0.1mL, and in described sample cup, the programming rate of oil product is 5.5 ± 0.825 DEG C/mL.
4. flash-point pick-up unit according to claim 1, is characterized in that, described flash-point pick-up unit also bag photoelectricity positioning unit, for making sample cup warehouse entry, delivering from godown and locate.
5. flash-point pick-up unit according to claim 1, is characterized in that, described heating plate is provided with draft tube, for injecting gas in sample cup, is communicated with by connecting pipe with described pressure transducer.
6. flash-point pick-up unit according to claim 5, is characterized in that, described flash-point pick-up unit also comprises air pump, by described draft tube to injecting gas in sample cup.
7. flash-point pick-up unit according to claim 6, is characterized in that, the injection rate IR of described gas is 1.5 mL.
8. flash-point pick-up unit according to claim 1, is characterized in that, described sample cup inwall is stepped, comprises three ladders, and wherein, the first ladder, contacts with heating plate lower surface; Second ladder, described high-field electrode is inserted therein; 3rd ladder, for holding oil product to be measured, sample temperature sensor is inserted therein.
9. flash-point pick-up unit according to claim 8, is characterized in that, described first ladder is back taper.
10. flash-point pick-up unit according to claim 8, is characterized in that, the volume of described 3rd step trough is equal with the volume of oil product to be measured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520231255.9U CN204694665U (en) | 2015-04-16 | 2015-04-16 | Flash-point pick-up unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520231255.9U CN204694665U (en) | 2015-04-16 | 2015-04-16 | Flash-point pick-up unit |
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| CN204694665U true CN204694665U (en) | 2015-10-07 |
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| CN201520231255.9U Active CN204694665U (en) | 2015-04-16 | 2015-04-16 | Flash-point pick-up unit |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106483164A (en) * | 2016-10-27 | 2017-03-08 | 北京润道油液监测技术有限公司 | For testing test system and the method for oil sample close flash point |
| CN111537562A (en) * | 2020-04-30 | 2020-08-14 | 上海景颐自动化设备有限公司 | Flash point testing method for explosion-proof pressure detection |
| CN111766269A (en) * | 2020-08-11 | 2020-10-13 | 合肥国轩高科动力能源有限公司 | Automatic testing system and method for closed flash point of lithium ion battery electrolyte |
| CN113063821A (en) * | 2021-04-08 | 2021-07-02 | 安徽华瑞检测技术有限公司 | Device for detecting flash point of oil product |
| CN114441596A (en) * | 2020-10-30 | 2022-05-06 | 中国石油天然气股份有限公司 | Diesel oil flash point testing device and diesel oil flash point testing method |
-
2015
- 2015-04-16 CN CN201520231255.9U patent/CN204694665U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106483164A (en) * | 2016-10-27 | 2017-03-08 | 北京润道油液监测技术有限公司 | For testing test system and the method for oil sample close flash point |
| CN111537562A (en) * | 2020-04-30 | 2020-08-14 | 上海景颐自动化设备有限公司 | Flash point testing method for explosion-proof pressure detection |
| CN111766269A (en) * | 2020-08-11 | 2020-10-13 | 合肥国轩高科动力能源有限公司 | Automatic testing system and method for closed flash point of lithium ion battery electrolyte |
| CN114441596A (en) * | 2020-10-30 | 2022-05-06 | 中国石油天然气股份有限公司 | Diesel oil flash point testing device and diesel oil flash point testing method |
| CN114441596B (en) * | 2020-10-30 | 2024-01-30 | 中国石油天然气股份有限公司 | Diesel oil flash point testing device and diesel oil flash point testing method |
| CN113063821A (en) * | 2021-04-08 | 2021-07-02 | 安徽华瑞检测技术有限公司 | Device for detecting flash point of oil product |
| CN113063821B (en) * | 2021-04-08 | 2023-09-19 | 安徽华瑞检测技术有限公司 | Oil flash point detects uses device |
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