CN103529163A - Portable oxygen index testing device and application method - Google Patents
Portable oxygen index testing device and application method Download PDFInfo
- Publication number
- CN103529163A CN103529163A CN201310519670.XA CN201310519670A CN103529163A CN 103529163 A CN103529163 A CN 103529163A CN 201310519670 A CN201310519670 A CN 201310519670A CN 103529163 A CN103529163 A CN 103529163A
- Authority
- CN
- China
- Prior art keywords
- oxygen index
- gas
- cabinet
- copper pipe
- combustion barrel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Sampling And Sample Adjustment (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The invention relates to the technical field of testing of an oxygen index needed in combustion of a material, especially to a portable oxygen index testing device and an application method. The portable oxygen index testing device comprises a case which is connected with an oxygen-nitrogen mixed gas cylinder through a gas flexible pipe; and according to the application method, oxygen-nitrogen mixed gas in the oxygen-nitrogen mixed gas cylinder is delivered to an incendiary cylinder of the case through the gas flexible pipe, then the sample is ignited, the value of a gas flowmeter is recorded, then the value of the gas flowmeter is recorded again when the sample is burned to a marked line, and thus, the value of the oxygen index of the sample can be calculated. The invention has the following beneficial effects: the portable oxygen index testing device has the advantages of convenience in manufacturing, carrying and transporting, convenient operation, low cost and applicability to on-site testing of the oxygen index of a fireproof thermal-insulation material and changes the situation that detection of the oxygen index of a material can only be completed in a laboratory in the prior art.
Description
(1) technical field
The present invention relates to belong to the technical field that material combustion requisite oxygen index is tested, particularly a kind of portable oxygen index proving installation and using method.
(2) background technology
Oxygen index refers under defined terms, and material carries out the required minimum oxygen concentration of flaming combustion in oxygen-nitrogen mixture stream.The height of oxygen index is the important indicator of judging material fire retardant performance, oxygen index measurer can be measured multiple material as the oxygen index of plastics, rubber, textile fabric, timber, foamed material and other polymeric material, yet, at present under technology, the oxygen index of material is all generally to have detected in laboratory, also there is no a kind of mancarried device and using method of testing oxygen index for scene now.
(3) summary of the invention
The present invention is in order to make up the deficiencies in the prior art, and a kind of portable oxygen index proving installation and using method that transportation, simple operation, cost are low, be suitable for on-the-spot test fire-retardant heat-insulation material oxygen index of being convenient to manufacture and carry is provided.
The present invention is achieved through the following technical solutions:
A kind of portable oxygen index proving installation, comprise cabinet, cabinet connects oxygen-nitrogen mixture bottle by gas flexible pipe, it is characterized in that: between described gas flexible pipe and oxygen-nitrogen mixture bottle, be connected with gas flow meter, on cabinet, be provided with combustion barrel, combustion barrel top is provided with cloche, is provided with sample locking pin in combustion barrel, and combustion barrel both sides are respectively arranged with and are installed on the copper pipe heating zone of cabinet inside and copper pipe disk around cooling zone.
Described cabinet side is provided with temp controlled meter, and temp controlled meter connects power switch, and power switch is connected with respectively heating power adjusting knob, the supply socket that is arranged at cabinet side, and cabinet bottom is provided with bottom, and connection terminal and relay are installed on bottom.
Described combustion barrel is through the cabinet top-portion apertures at cabinet top, by the internal and external threads being arranged at outside combustion barrel and in sheath, coordinate with sheath, combustion barrel Tong Di center is vertically fixed with vertical rod by nut, match with the external thread of bolt pin by internal thread in vertical rod top, sample locking pin is arranged on bolt pin in order to fixing sample, it is suitable for reading that cloche top offers cloche, and combustion barrel top is provided with anti-gray net.
Between described combustion barrel and cabinet, be provided with locating ring, combustion barrel one side is fixed with temperature-sensing probe by nut, and temperature-sensing probe is connected with temperature control line.
The described cylinder end, is connected with outlet nozzle by nut, and outlet nozzle is connected with copper pipe heating zone, and the outsourcing of copper pipe heating zone is provided with heating tape, between heating tape and outlet nozzle, is provided with overheat switch.
Described copper pipe heating zone was passed through hole and was connected around cooling zone with copper pipe disk, and copper pipe disk is provided with drawer around top, cooling zone, is placed with dry ice in drawer, and drawer bottom offers some pores.
Described copper pipe disk is connected with quick gas coupling with gas meter, precision pressure regulator, filtrator by copper pipe successively around cooling zone, quick gas coupling connects gas flexible pipe, and precision pressure regulator is connected with gas flow adjusting knob and gaseous tension fine adjustment knob.
Between described gas flexible pipe and oxygen-nitrogen mixture bottle, be connected with fast joint and gas cylinder release knob in turn, on fast joint, be connected with cylinder pressure gauge.
Described cabinet enclosure interior is provided with the heat-insulation layer for dry ice insulation in copper pipe heating zone and drawer.
A kind of portable oxygen index proving installation using method, it is characterized in that: sample is inserted on sample locking pin, cloche is vertically placed in sheath, dry ice is put into drawer, turn on the power switch 11, adjust temp controlled meter design temperature, open gas cylinder release knob, adjustments of gas pressure fine adjustment knob and gas flow regulation button, the temperature showing according to temp controlled meter is rotated heating power adjusting knob, after reaching 23 ℃ ± 2 ℃, sample top is lighted from cloche is suitable for reading with lighter gas temperature, record the numerical value of gas flow meter, after being burned to graticule, again reads by sample the numerical value that records gas flow meter, after the sample that burnt like this, can calculate the oxygen index value of this material.
The invention has the beneficial effects as follows: be convenient to manufacture and carry transportation, simple operation, cost low, be suitable for on-the-spot test fire-retardant heat-insulation material oxygen index, changed the present situation that the oxygen index of material can only detect in laboratory in the past.
(4) accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Accompanying drawing 1 is main TV structure schematic diagram of the present invention;
Accompanying drawing 2 is plan structure schematic diagram of the present invention;
Accompanying drawing 3 is side-looking structural representation of the present invention;
Accompanying drawing 4 is the A-A cut-open view of accompanying drawing 2;
Accompanying drawing 5 is the B-B cut-open view of accompanying drawing 4;
In figure, 1 cabinet, 2 gas flexible pipes, 3 oxygen-nitrogen mixture bottles, 4 gas flow meters, 5 combustion barrels, 6 cloches, 7 sample locking pins, 8 copper pipe heating zone, 9 copper pipe disks are around cooling zone, 10 temp controlled meters, 11 power switches, 12 heating power adjusting knobs, 13 supply sockets, 14 bottoms, 15 connection terminals, 16 relays, 17 cabinet top-portion apertures, 18 sheaths, 19 internal and external threads, at the bottom of 20, 21 nuts, 22 vertical rods, 23 internal threads, 24 bolt pins, 25 external threads, 26 samples, 27 cloches are suitable for reading, 28 anti-gray nets, 29 locating rings, 30 temperature-sensing probes, 31 temperature control lines, 32 outlet nozzles, 33 heating tapes, 34 overheat switches, 35 cross hole, 36 drawers, 37 dry ice, 38 pores, 39 copper pipes, 40 gas meters, 41 precision pressure regulators, 42 filtrators, 43 quick gas couplings, 44 gas flow adjusting knobs, 45 gaseous tension fine adjustment knobs, 46 fast joints, 47 gas cylinder release knobs, 48 cylinder pressure gauges, 49 heat-insulation layers.
(5) embodiment
Accompanying drawing is a kind of specific embodiment of the present invention.This embodiment comprises cabinet 1, cabinet 1 connects oxygen-nitrogen mixture bottle 3 by gas flexible pipe 2, between gas flexible pipe 2 and oxygen-nitrogen mixture bottle 3, be connected with gas flow meter 4, on cabinet 1, be provided with combustion barrel 5, combustion barrel 5 tops are provided with cloche 6, in combustion barrel 5, be provided with sample locking pin 7, combustion barrel 5 both sides are respectively arranged with and are installed on the copper pipe heating zone 8 of cabinet 1 inside and copper pipe disk around cooling zone 9.Cabinet 1 side is provided with temp controlled meter 10, temp controlled meter 10 connects power switch 11, power switch 11 is connected with respectively heating power adjusting knob 12, the supply socket 13 that is arranged at cabinet 1 side, and cabinet 1 bottom is provided with bottom 14, and connection terminal 15 and relay 16 are installed on bottom 14.Combustion barrel 5 is through the cabinet top-portion apertures 17 at cabinet 1 top, by the internal and external threads 19 being arranged at outside combustion barrel 5 and in sheath 18, coordinate with sheath 18, Tong Di 20 centers of combustion barrel 5 are vertically fixed with vertical rod 22 by nut 21, match with the external thread 25 of bolt pin 24 by internal thread 23 in vertical rod 22 tops, sample locking pin 7 is arranged on bolt pin 24 in order to fixing sample 26, it is suitable for reading 27 that cloche 6 tops offer cloche, and combustion barrel 5 tops are provided with anti-gray net 28.Between combustion barrel 5 and cabinet 1, be provided with locating ring 29, combustion barrel 5 one sides are fixed with temperature-sensing probe 30 by nut 21, and temperature-sensing probe 30 is connected with temperature control line 31.The cylinder end 20, is connected with outlet nozzle 32 by nut 21, and outlet nozzle 32 is connected with copper pipe heating zone 8, and 8 outsourcings of copper pipe heating zone are provided with heating tape 33, between heating tape 33 and outlet nozzle 32, are provided with overheat switch 34.Copper pipe heating zone 8 was passed through hole 35 and copper pipe disk and 9 was connected around cooling zone, and around cooling zone, 9 tops are provided with drawer 36 to copper pipe disk, are placed with dry ice 37 in drawer 36, and drawer 36 bottoms offer some pores 38.Copper pipe disk 9 is connected with gas meter 40, precision pressure regulator 41, filtrator 42 and quick gas coupling 43 by copper pipe 39 successively around cooling zone, quick gas coupling 43 connects gas flexible pipe 2, and precision pressure regulator 41 is connected with gas flow adjusting knob 44 and gaseous tension fine adjustment knob 45.Between gas flexible pipe 2 and oxygen-nitrogen mixture bottle 3, be connected with fast joint 46 and gas cylinder release knob 47 in turn, on fast joint 46, be connected with cylinder pressure gauge 48.Cabinet 1 enclosure interior is provided with the heat-insulation layer 49 for copper pipe heating zone 8 and interior dry ice 37 insulations of drawer 36.
Gas in small oxygen nitrogen mixed gas bottle 3 enters gas meter 40 by precision pressure regulator 41 by gas flexible pipe 2 and enters copper pipe 39 again after quick gas coupling 43 enters filtrator 42, copper pipe 39 enters copper pipe disk around cooling zone 9 through heat-insulation layer 49, this top, region is provided with drawer 36, in it, be placed with dry ice 37, in the bottom of drawer 36, have pore 38, the cold air that dry ice 37 distributes through air passing hole 38 enter copper pipe disk around cooling zone 9 gas cooled that make in copper pipe.Cooled gas enters copper pipe heating zone 8 through hole 35; the copper pipe in this region is surrounded by heating tape 33 outward and is provided with overheat switch 34; gas enters combustion barrel 5 through outlet nozzle 32; in combustion barrel 5, be provided with gas temperature-sensing probe 30; the bottom centre of combustion barrel 5 is vertically fixing by vertical rod 22 by nut 21; at the top of vertical rod 22, being provided with internal thread 23 can coordinate with the external thread 25 on bolt pin 24, and the middle part of bolt pin 24 is vertically provided with sample locking pin 7 for fixing sample 26.In sheath 18 He outside combustion barrel 5, be provided with internal and external threads 19, outside combustion barrel 5, be also provided with locating ring 29, the top of combustion barrel 5 is through cabinet top-portion apertures 17, and coordinate and screw internal and external threads 19 with sheath 18, make combustion barrel 5 be vertically fixed on the top of cabinet 1, anti-gray net 28 and cloche 6 are housed on the top of combustion barrel 5, in the bottom of cabinet 1, be provided with bottom 14, connection terminal 15 and relay 16 are housed on bottom 14, temp controlled meter 10, heating power adjusting knob 12, gas meter 40, gas flow adjusting knob 44, gaseous tension fine adjustment knob 45, quick gas coupling 43 grades are arranged on the side of cabinet 3.
Test complete powered-down switch 11, close gas cylinder release knob 47, pull up quick gas coupling 43, take off cloche 6, screw out bolt pin 24 etc., make like this this oxygen index proving installation be decomposed into three parts such as oxygen-nitrogen mixture bottle 3, cabinet 1, cloche 6, transportation is easy to carry.This device measuring ability meets standard code, and complete machine cost is low, is suitable for the oxygen index of on-the-spot test fire-retardant heat-insulation material.This installs general mechano-electronic manufacturer and can manufacture.
Claims (10)
1. a portable oxygen index proving installation, comprise cabinet (1), cabinet (1) connects oxygen-nitrogen mixture bottle (3) by gas flexible pipe (2), it is characterized in that: between described gas flexible pipe (2) and oxygen-nitrogen mixture bottle (3), be connected with gas flow meter (4), on cabinet (1), be provided with combustion barrel (5), combustion barrel (5) top is provided with cloche (6), in combustion barrel (5), be provided with sample locking pin (7), combustion barrel (5) both sides are respectively arranged with and are installed on the inner copper pipe heating zone (8) of cabinet (1) and copper pipe disk around cooling zone (9).
2. a kind of portable oxygen index proving installation according to claim 1, it is characterized in that: described cabinet (1) side is provided with temp controlled meter (10), temp controlled meter (10) connects power switch (11), power switch (11) is connected with respectively heating power adjusting knob (12), the supply socket (13) that is arranged at cabinet (1) side, cabinet (1) bottom is provided with bottom (14), and connection terminal (15) and relay (16) are installed on bottom (14).
3. a kind of portable oxygen index proving installation according to claim 1, it is characterized in that: described combustion barrel (5) is through the cabinet top-portion apertures (17) at cabinet (1) top, by being arranged at combustion barrel (5) internal and external threads (19) outer and that sheath (18) is interior, coordinate with sheath (18), cylinder (20) center, the end of combustion barrel (5) is vertically fixed with vertical rod (22) by nut (21), match with the external thread (25) of bolt pin (24) by internal thread (23) in vertical rod (22) top, it is upper in order to fixing sample (26) that sample locking pin (7) is arranged at bolt pin (24), cloche (6) top offers cloche (27) suitable for reading, combustion barrel (5) top is provided with anti-gray net (28).
4. a kind of portable oxygen index proving installation according to claim 1, it is characterized in that: between described combustion barrel (5) and cabinet (1), be provided with locating ring (29), combustion barrel (5) one sides are fixed with temperature-sensing probe (30) by nut (21), and temperature-sensing probe (30) is connected with temperature control line (31).
5. a kind of portable oxygen index proving installation according to claim 3; it is characterized in that: the described cylinder end (20) is connected with outlet nozzle (32) by nut (21); outlet nozzle (32) is connected with copper pipe heating zone (8); copper pipe heating zone (8) outsourcing is provided with heating tape (33), between heating tape (33) and outlet nozzle (32), is provided with overheat switch (34).
6. a kind of portable oxygen index proving installation according to claim 1, it is characterized in that: hole (35) was passed through in described copper pipe heating zone (8), and around cooling zone, (9) are connected with copper pipe disk, around cooling zone, (9) top is provided with drawer (36) to copper pipe disk, in drawer (36), be placed with dry ice (37), drawer (36) bottom offers some pores (38).
7. a kind of portable oxygen index proving installation according to claim 1, it is characterized in that: around cooling zone, (9) are connected with gas meter (40), precision pressure regulator (41), filtrator (42) and quick gas coupling (43) by copper pipe (39) described copper pipe disk successively, quick gas coupling (43) connects gas flexible pipe (2), and precision pressure regulator (41) is connected with gas flow adjusting knob (44) and gaseous tension fine adjustment knob (45).
8. a kind of portable oxygen index proving installation according to claim 1, it is characterized in that: between described gas flexible pipe (2) and oxygen-nitrogen mixture bottle (3), be connected with fast joint (46) and gas cylinder release knob (47) in turn, on fast joint (46), be connected with cylinder pressure gauge (48).
9. a kind of portable oxygen index proving installation according to claim 1, is characterized in that: described cabinet (1) enclosure interior is provided with the heat-insulation layer (49) for copper pipe heating zone (8) and the interior dry ice of drawer (36) (37) insulation.
10. a portable oxygen index proving installation using method, it is characterized in that: sample (26) is inserted on sample locking pin (7), cloche (6) is vertically placed in sheath (18), dry ice (37) is put into drawer (36), turn on the power switch (11), adjust temp controlled meter (10) design temperature, open gas cylinder release knob (47), adjustments of gas pressure fine adjustment knob (45) and gas flow regulation button (44), the temperature showing according to temp controlled meter (10) is rotated heating power adjusting knob (12), after reaching 23 ℃ ± 2 ℃, sample (26) top is lighted from cloche (27) suitable for reading with lighter gas temperature, record the numerical value of gas flow meter (4), after being burned to graticule, sample (26) again reads the numerical value that records gas flow meter (4), after the sample (26) that burnt like this, can calculate the oxygen index value of this material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310519670.XA CN103529163B (en) | 2013-10-29 | 2013-10-29 | A kind of portable oxygen index testing arrangement and using method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310519670.XA CN103529163B (en) | 2013-10-29 | 2013-10-29 | A kind of portable oxygen index testing arrangement and using method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103529163A true CN103529163A (en) | 2014-01-22 |
| CN103529163B CN103529163B (en) | 2016-05-04 |
Family
ID=49931343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310519670.XA Expired - Fee Related CN103529163B (en) | 2013-10-29 | 2013-10-29 | A kind of portable oxygen index testing arrangement and using method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103529163B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105467065A (en) * | 2015-12-30 | 2016-04-06 | 重庆精榜高分子材料有限公司 | Oxygen index tester |
| CN106501445A (en) * | 2016-12-24 | 2017-03-15 | 天津达元吉科技有限公司 | A kind of liftable oxygen index (OI) tester |
| CN107014948A (en) * | 2017-04-18 | 2017-08-04 | 广西丰林木业集团股份有限公司 | A kind of quick determination method of flame retardant fibre board combustibility |
| CN107036877A (en) * | 2016-12-19 | 2017-08-11 | 长安大学 | Laboratory's asphalt raw material early warning type temperature control and drawer type accommodate baking oven |
| CN114383900A (en) * | 2022-01-10 | 2022-04-22 | 合肥康柏斯工业设备有限公司 | Gas premixed combustion atmosphere analyzer |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1326718A (en) * | 1970-09-21 | 1973-08-15 | Michigan Chem Corp | Apparatus for the determination of flammability and smoke density of polymers |
| CN202033342U (en) * | 2011-03-16 | 2011-11-09 | 南京上元分析仪器有限公司 | Oxygen index meter for building materials |
| CN102353748A (en) * | 2011-09-22 | 2012-02-15 | 东南大学 | Oxygen index tester |
| CN203572810U (en) * | 2013-10-29 | 2014-04-30 | 山东省产品质量监督检验研究院 | Portable oxygen index test device |
-
2013
- 2013-10-29 CN CN201310519670.XA patent/CN103529163B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1326718A (en) * | 1970-09-21 | 1973-08-15 | Michigan Chem Corp | Apparatus for the determination of flammability and smoke density of polymers |
| CN202033342U (en) * | 2011-03-16 | 2011-11-09 | 南京上元分析仪器有限公司 | Oxygen index meter for building materials |
| CN102353748A (en) * | 2011-09-22 | 2012-02-15 | 东南大学 | Oxygen index tester |
| CN203572810U (en) * | 2013-10-29 | 2014-04-30 | 山东省产品质量监督检验研究院 | Portable oxygen index test device |
Non-Patent Citations (2)
| Title |
|---|
| 国家技术监督局: "纺织品 燃烧性能试验 氧指数法 GB/T 5454-1997", 《中华人民共和国国家标准》 * |
| 张新民 等: "阻燃纤维及其性能表征方法研究", 《上海纺织科学》 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105467065A (en) * | 2015-12-30 | 2016-04-06 | 重庆精榜高分子材料有限公司 | Oxygen index tester |
| CN105467065B (en) * | 2015-12-30 | 2017-08-15 | 重庆精榜高分子材料有限公司 | A kind of oxygen index (OI) tester |
| CN107036877A (en) * | 2016-12-19 | 2017-08-11 | 长安大学 | Laboratory's asphalt raw material early warning type temperature control and drawer type accommodate baking oven |
| CN107036877B (en) * | 2016-12-19 | 2023-07-14 | 长安大学 | Early-warning type temperature control and drawer type accommodating oven for asphalt mixture raw materials in laboratory |
| CN106501445A (en) * | 2016-12-24 | 2017-03-15 | 天津达元吉科技有限公司 | A kind of liftable oxygen index (OI) tester |
| CN106501445B (en) * | 2016-12-24 | 2019-03-05 | 天津达元吉科技有限公司 | A kind of liftable oxygen index (OI) tester |
| CN107014948A (en) * | 2017-04-18 | 2017-08-04 | 广西丰林木业集团股份有限公司 | A kind of quick determination method of flame retardant fibre board combustibility |
| CN114383900A (en) * | 2022-01-10 | 2022-04-22 | 合肥康柏斯工业设备有限公司 | Gas premixed combustion atmosphere analyzer |
| CN114383900B (en) * | 2022-01-10 | 2024-10-15 | 合肥康柏斯工业设备有限公司 | Gas premix combustion atmosphere analyzer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103529163B (en) | 2016-05-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103529163A (en) | Portable oxygen index testing device and application method | |
| CN106124357B (en) | A kind of multi-functional coal sample heating and oxidation rule test platform of automatic sampling | |
| CN203572810U (en) | Portable oxygen index test device | |
| CN104483350A (en) | Device for simulating programmed temperature rising and adiabatic oxidation of coal | |
| CN104392753A (en) | Experimental system used for simulating severe accident conditions of containment of nuclear power plant, and implementation method thereof | |
| CN103344505A (en) | Low-temperature stretching test system for twisted steel | |
| CN103293177B (en) | Quick heating and gasifying test device and application thereof | |
| CN103076221A (en) | Device for testing mechanical property of material at low temperature | |
| CN203396654U (en) | Low-temperature tensile test system for twisted steel | |
| CN203982238U (en) | Quick constant gas humidity generating means | |
| Zhang et al. | Experimental research on performance response of domestic gas cookers to variable natural gas constituents | |
| CN103063700B (en) | Method for synchronously measuring apparent thermophysical property and autoignition temperature of combustible particles | |
| CN203396634U (en) | Device for low-temperature tensile test of metal material | |
| CN103808543B (en) | Self-heating substance thermal reaction test system | |
| CN116413308A (en) | Device and method for rapidly testing spontaneous combustion tendency of coal body based on normal-temperature oxidation of active site | |
| CN103344487B (en) | Device for low-temperature stretching test of metal material | |
| CN204165958U (en) | A kind of combustible gas probe testing equipment | |
| CN204155427U (en) | A kind of cigarette temperature-sensitive sense combustible gas probe integration test case | |
| CN202304404U (en) | Low-temperature furnace body structure of thermal analyzer | |
| CN109855795A (en) | A kind of fission opposite opened high/low temperature experimental provision | |
| CN204807491U (en) | Static evaporation rate tester | |
| CN108507900A (en) | A kind of thermal analyzer and its control method | |
| RU2542604C1 (en) | Method of testing gas analytical sensors for operation speed with response time of less than 4 seconds | |
| CN103116005B (en) | The release of household electrical appliance hydrocarbon refrigerant and low explosion limits measurement mechanism | |
| CN110017919B (en) | Low-temperature infusion pipeline heat leakage testing system and measuring method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160504 Termination date: 20161029 |