CN103675158A - Thermal analyzer - Google Patents
Thermal analyzer Download PDFInfo
- Publication number
- CN103675158A CN103675158A CN201310587706.8A CN201310587706A CN103675158A CN 103675158 A CN103675158 A CN 103675158A CN 201310587706 A CN201310587706 A CN 201310587706A CN 103675158 A CN103675158 A CN 103675158A
- Authority
- CN
- China
- Prior art keywords
- heater
- hole
- thermal analysis
- analysis apparatus
- adsorption tube
- 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.)
- Pending
Links
- 238000001179 sorption measurement Methods 0.000 claims abstract description 27
- 238000002076 thermal analysis method Methods 0.000 claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims description 23
- 238000012856 packing Methods 0.000 claims description 22
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 6
- 238000009826 distribution Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 229910052697 platinum Inorganic materials 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 238000004817 gas chromatography Methods 0.000 abstract 2
- 238000004140 cleaning Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 14
- 239000012159 carrier gas Substances 0.000 description 10
- 238000004587 chromatography analysis Methods 0.000 description 6
- 238000000197 pyrolysis Methods 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000003463 adsorbent Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 239000004566 building material Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 231100000614 poison Toxicity 0.000 description 2
- 230000007096 poisonous effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003822 preparative gas chromatography Methods 0.000 description 1
Images
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a thermal analyzer, belongs to the technical field of gas chromatography, and mainly aims to solve the common problems of high operative difficulty index and low service efficiency of the conventional thermal analyzer. The thermal analyzer is mainly characterized by comprising a gas outlet, a handle, a locking cap, an adsorption tube, an adsorption tube seal washer, a locking head, a furnace body, an end opening seal washer and an end opening seal nut, wherein one end of the furnace body is connected with the locking head, and the other end of the furnace body is sealed through the end opening seal washer and the end opening seal nut; chutes and circular teeth which are mutually matched are arranged between the locking head and the locking cap; the absorption tube seal washer is positioned between the chutes and the circular teeth; a through hole is formed in the thick wall of the furnace body; a heating rod is placed in the through hole; a gas inlet is formed in the middle of the furnace body. The thermal thermal analyzer has the characteristics of capability of performing thermal analysis on a sample in relatively short time, self-cleaning effect, no overall gas path dead volume, uniform heating, high analyzing efficiency and capability of truly realizing zero-tool operation, and is mainly used for a pretreating device for gas chromatography of volatile components.
Description
Technical field
The invention belongs to gas chromatographic analysis technique field.Be specifically related to a kind of gas chromatographic analysis support equipment, for the pretreating device of effumability composition gas chromatographic analysis.
Background technology
In recent years, indoor environmental pollution has been carried out to large quantity research both at home and abroad, the poisonous and harmful substance having detected reaches hundreds of, common also has more than 10 kinds, wherein the overwhelming majority is organism, these pollution sources are in chemical building material class building materials products such as various artificial boards, coating, tackifier, treating agents, and these materials can discharge multiple poisonous and harmful substance at normal temperatures, thereby cause air pollution.In order to prevent and control civil building engineering indoor environmental pollution, when the final acceptance of construction of civil building engineering indoor environment detects, national regulation: should adopt vapor-phase chromatography to analyze total volatile organism in room air (TVOC), the method need to be utilized a kind of thermal analysis apparatus.The current thermal analysis apparatus in use is owing to adopting the mode of upper and lower two parts clamping, and ubiquity heating is inhomogeneous, and the problem that operation easier is high, during loading and unloading adsorption tube, must be used spanner, thereby reduce service efficiency.
Summary of the invention
The object of the present invention is to provide a kind of thermal analysis apparatus, it is shorter that this device carries out to sample the time that pyrolysis analyses, and homogeneous heating, analyzing efficiency are high, and really realize zero tool operation.
Technical solution of the present invention is: a kind of thermal analysis apparatus, comprise gas outlet, handle, locking cap, adsorption tube, adsorption tube packing washer, locking head, body of heater, port sealing packing ring, port sealing nut, wherein, gas outlet, handle, locking cap form top cover; One end of body of heater is connected with locking head, adsorption tube packing washer through screw thread, and the other end is by port sealing packing ring, port sealing nut seal; It is characterized in that: between described locking head and locking cap, be provided with the skewed slot and the knuckle-tooth that cooperatively interact, adsorption tube packing washer is between skewed slot and knuckle-tooth; Described body of heater wall thickness is provided with through hole, places heating rod in this through hole, and body of heater middle part is provided with air admission hole.
Skewed slot described in technical solution of the present invention is for being three skewed slots of 120 ° of distributions on locking head surface, the vertical direction of skewed slot has the stroke height of 1.5mm, forms the three-clove style rotation gradient; Described knuckle-tooth is for being three knuckle-tooth of 120 ° of distributions in locking cap inside.
Body of heater internal diameter described in technical solution of the present invention is 6.2mm; Described through hole along wall thickness circumference be 180 ° symmetrical, through-hole diameter is 8mm.
On body of heater wall thickness described in technical solution of the present invention, be 90 ° with through hole and be distributed with the stepped hole that a diameter is 3mm, degree of depth 55mm, wherein stepped diameters is 5mm, degree of depth 15mm.
Body of heater top screw thread described in technical solution of the present invention is got the mode of the symmetrical excision in two ends.
Gas outlet and handle described in technical solution of the present invention are connected by screw, the handle that handle is polytetrafluoroethylmaterial material.
In stepped hole described in technical solution of the present invention, place platinum resistance.
The present invention is owing to being provided with skewed slot and the knuckle-tooth cooperatively interacting between locking head and locking cap, adsorption tube packing washer between skewed slot and knuckle-tooth, thereby when rotational lock cap, can be by adsorption tube packing washer extruding skewed slot, thereby reach the effect of sealing.The present invention is owing to adopting handle, and handle and gas outlet, locking cap are formed to top cover, thereby can locking cap and locking head be tightened and be unclamped by handle, without use spanner, thus raising service efficiency.The present invention is owing to being provided with through hole on body of heater wall thickness, in this through hole, be provided with heating rod, body of heater middle part is provided with air admission hole, thereby carrier gas (as nitrogen) is entered in body of heater by the air admission hole of body of heater side, carrier gas is flowed from top to down along the inwall of body of heater cavity and the outer wall of adsorption tube, when carrier gas arrives cavity bottom, enter adsorption tube, when carrier gas is flowed in the cavity of body of heater, reached pyrolysis eutectoid temperature, thereby the sample that makes to be attached on adsorbent is removed absorption, with carrier gas, enter chromatographic analysis system, sample component after finally pyrolysis being analysed is carried out separation and detection.The present invention has that sample is carried out to the time that pyrolysis analyses is shorter, and homogeneous heating, analyzing efficiency are high, the real feature that realizes zero tool operation.The present invention is mainly used in the pretreating device of effumability composition gas chromatographic analysis.
accompanying drawing explanation
Fig. 1 is the structural representation of thermal analysis apparatus of the present invention.
Fig. 2 is the stereographic map of thermal analysis apparatus of the present invention.
Fig. 3 is the fundamental diagram of thermal analysis apparatus of the present invention.
Embodiment
Below in conjunction with accompanying drawing, describe the present invention:
As shown in Figure 1 and Figure 2.The present invention includes gas outlet 1, handle 2, locking cap 3, adsorption tube 4, adsorption tube packing washer 5, locking head 6, body of heater 7, port sealing packing ring 8, port sealing nut 9.Wherein, gas outlet 1, handle 2, locking cap 3 forms top covers, and handle 2 is 1 upper end in gas outlet, and gas outlet 1 and handle 2 are connected by screw, and gas outlet 1 is threaded connection locking cap 3, the handle that handle 2 is polytetrafluoroethylmaterial material.One end of body of heater 7 is connected with locking head 6, adsorption tube packing washer 5 through screw thread, and the other end is by port sealing packing ring 8,9 sealings of port sealing nut.The inside that adsorption tube packing washer 5 is positioned at gas outlet 1 seals, locking head 6 is threaded connection the upper end at body of heater 7, port sealing nut 9 is threaded connection in the lower end of body of heater 7, and port sealing packing ring 8 seals in the inside of port sealing nut 9.Port sealing nut 9 is threaded connection in the lower end of body of heater 7, and port sealing packing ring 8 seals in the inside of port sealing nut 9.Locking head 6 surfaces are three skewed slots of 120 ° of distributions, the vertical direction of skewed slot has the stroke height of 1.5mm, form the three-clove style rotation gradient, locking cap 3 inside are 120 ° and are distributed with three knuckle-tooth, adsorption tube packing washer 5 is between skewed slot and knuckle-tooth, and when rotating cap, three knuckle-tooth are just in time stuck in three skewed slots of locking head 6, top cover can push 1.5mm by adsorption tube packing washer 5, thereby makes adsorption tube 4 and locking cap 3 reach sealing.Body of heater 7 internal diameters are 6.2mm, be 180 ° be symmetrically distributed with the through hole that diameter is 8mm on wall thickness along circumference, in this through hole, are provided with heating rod.Be 90 ° with through hole and be distributed with the stepped hole that diameter is 3mm, degree of depth 55mm, wherein stepped diameters is 5mm, degree of depth 15mm, is placed with platinum resistance in stepped hole, can make to be heated evenly in cavity.Body of heater 7 middle parts are provided with air admission hole.Body of heater 7 top screw threads are got mode or the structure of the symmetrical excision in two ends.
Principle of work and the use procedure of thermal analysis apparatus of the present invention are: as shown in Figure 3, there is the adsorption tube 4 of sample to insert in the cavity of body of heater 7 absorption, then top cover is vertically placed on to the top of locking head 6, rotating cap, three rooted teeth of top cover inside are just in time inserted in three grooves of locking head 6 outside surfaces, the opening of groove is taked circular arc chamfering design, facilitate the tooth of top cover to enter, locking head 6 adopts three-clove style rotation slope design, its vertical direction has the stroke height of 1.5mm, like this, when rotating cap, top cover can be by adsorption tube packing washer 5 extruding 1.5mm, thereby make adsorption tube 4 and locking cap 3 reach sealing.
Carrier gas (as nitrogen) is entered in body of heater 7 by the air admission hole of body of heater 7 sides, heating rod is in heating simultaneously, carrier gas is flowed from top to down along the inwall of body of heater 7 cavitys and the outer wall of adsorption tube 4, when carrier gas arrives cavity bottom, enter adsorption tube 4, when carrier gas is flowed in the cavity of body of heater 7, reached pyrolysis eutectoid temperature, thereby the sample that makes to be attached on adsorbent is removed absorption, with carrier gas, enters chromatographic analysis system, and the sample component after finally pyrolysis being analysed is carried out separation and detection.
Claims (7)
1. a thermal analysis apparatus, comprise gas outlet (1), handle (2), locking cap (3), adsorption tube (4), adsorption tube packing washer (5), locking head (6), body of heater (7), port sealing packing ring (8), port sealing nut (9), wherein, gas outlet (1), handle (2), locking cap (3) form top cover; One end of body of heater (7) is connected with locking head (6), adsorption tube packing washer (5) through screw thread, and the other end is by port sealing packing ring (8), port sealing nut (9) sealing; It is characterized in that: between described locking head (6) and locking cap (3), be provided with skewed slot and the knuckle-tooth cooperatively interacting, adsorption tube packing washer (5) is between skewed slot and knuckle-tooth; Described body of heater (7) wall thickness is provided with through hole, places heating rod in this through hole, and body of heater (7) middle part is provided with air admission hole.
2. a kind of thermal analysis apparatus according to claim 1, is characterized in that: described skewed slot is for to be three skewed slots of 120 ° of distributions on locking head (6) surface, the vertical direction of skewed slot has the stroke height of 1.5mm, forms the three-clove style rotation gradient; Described knuckle-tooth is for being three knuckle-tooth of 120 ° of distributions in locking cap (3) inside.
3. a kind of thermal analysis apparatus according to claim 1 and 2, is characterized in that: described body of heater (7) internal diameter is 6.2mm; Described through hole along wall thickness circumference be 180 ° symmetrical, through-hole diameter is 8mm.
4. a kind of thermal analysis apparatus according to claim 3, is characterized in that: on described body of heater (7) wall thickness, be 90 ° with through hole and be distributed with the stepped hole that a diameter is 3mm, degree of depth 55mm, wherein stepped diameters is 5mm, degree of depth 15mm.
5. a kind of thermal analysis apparatus according to claim 1 and 2, is characterized in that: described body of heater (7) top screw thread is got the mode of the symmetrical excision in two ends.
6. a kind of thermal analysis apparatus according to claim 1 and 2, is characterized in that: described gas outlet (1) and handle (2) are connected by screw, the handle that handle (2) is polytetrafluoroethylmaterial material.
7. a kind of thermal analysis apparatus according to claim 4, is characterized in that: in described stepped hole, place platinum resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310587706.8A CN103675158A (en) | 2013-11-21 | 2013-11-21 | Thermal analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310587706.8A CN103675158A (en) | 2013-11-21 | 2013-11-21 | Thermal analyzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103675158A true CN103675158A (en) | 2014-03-26 |
Family
ID=50313353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310587706.8A Pending CN103675158A (en) | 2013-11-21 | 2013-11-21 | Thermal analyzer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103675158A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1707259A (en) * | 2004-06-04 | 2005-12-14 | 中国科学院大连化学物理研究所 | A device for solid-state adsorption stirring rod thermal desorber |
| CN1803252A (en) * | 2005-01-14 | 2006-07-19 | 中国科学院大连化学物理研究所 | Sample-taking adsorption tube and its hydrolyzed adsorption device |
| CN101294933A (en) * | 2007-04-24 | 2008-10-29 | 中国科学院大连化学物理研究所 | A Thermal Desorption Sampling Device with Surface Air Purging |
| CN103323324A (en) * | 2012-03-21 | 2013-09-25 | 海洋王照明科技股份有限公司 | Hydrostatic pressure test connection joint |
-
2013
- 2013-11-21 CN CN201310587706.8A patent/CN103675158A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1707259A (en) * | 2004-06-04 | 2005-12-14 | 中国科学院大连化学物理研究所 | A device for solid-state adsorption stirring rod thermal desorber |
| CN1803252A (en) * | 2005-01-14 | 2006-07-19 | 中国科学院大连化学物理研究所 | Sample-taking adsorption tube and its hydrolyzed adsorption device |
| CN101294933A (en) * | 2007-04-24 | 2008-10-29 | 中国科学院大连化学物理研究所 | A Thermal Desorption Sampling Device with Surface Air Purging |
| CN103323324A (en) * | 2012-03-21 | 2013-09-25 | 海洋王照明科技股份有限公司 | Hydrostatic pressure test connection joint |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10690649B2 (en) | Supercritical CO2 reactor and test system of creepage, diffusion and erosion of rock mass | |
| CN102928499B (en) | Rapid analysis device and method for ambient air volatile organic compounds | |
| CN202033333U (en) | Gas-phase adsorption-desorption device having function of automatically analyzing injected samples | |
| CN202599102U (en) | Fast heating and cooling desorption furnace of thermal desorption device | |
| CN206339501U (en) | High Pressure Gas Sample Cells for Neutron Scattering | |
| CN201518018U (en) | Freely-pluggable type thermal desorbing instrument | |
| CN103675158A (en) | Thermal analyzer | |
| CN103792310A (en) | Sampling device for gas phase determination of released gas from water body | |
| CN209606165U (en) | A kind of segmented sampler for air detection | |
| CN107290463A (en) | A kind of portable purge and trap sampler | |
| CN202674695U (en) | PE (polyethylene) pipe end air blocking device | |
| CN205879622U (en) | Epoxy resin cure in -process volatile gaseous's gas -collecting device | |
| CN104020307A (en) | Automatic feeding method of headspace analysis detection equipment and implement system thereof | |
| CN101614726B (en) | Device for detecting migration volume of chemical substances in food packaging material | |
| CN205538324U (en) | Multi -functional transformer oil sampling device | |
| CN203929793U (en) | The automatic sample handling system of headspace analysis checkout equipment | |
| CN205826684U (en) | A kind of elemental analyser stable isotope mass spectrograph combined apparatus | |
| CN209841799U (en) | Waste gas reprocessing device for gas chromatograph | |
| CN203720155U (en) | Sample feeding device for measuring gas phase of water body release gas | |
| CN104133026B (en) | The oil product pre-treatment degas method of transformer insulated oil gas chromatographic | |
| CN212676217U (en) | Sample introduction device of mass spectrometer | |
| CN111141858B (en) | A device for thermal analyzer interface | |
| CN105928749A (en) | Gas collection device and gas collection method for volatilized gas during epoxy resin curing | |
| CN212008459U (en) | Online gas sample enrichment and sampling device based on three-way valve structure | |
| CN207318386U (en) | Solid phase extraction concentration device and with its associated with XRF |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Pei Xiaomin Inventor after: Wang Hao Inventor after: Zhang Bo Inventor after: Qin Jiabao Inventor before: Wang Hao Inventor before: Zhang Bo Inventor before: Qin Jiabao |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: WANG HAO ZHANG BO QIN JIABAO TO: PEI XIAOMIN WANG HAO ZHANG BO QIN JIABAO |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140326 |