CN208399446U - A kind of second level pyrolysis analysis system - Google Patents
A kind of second level pyrolysis analysis system Download PDFInfo
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- CN208399446U CN208399446U CN201821146051.5U CN201821146051U CN208399446U CN 208399446 U CN208399446 U CN 208399446U CN 201821146051 U CN201821146051 U CN 201821146051U CN 208399446 U CN208399446 U CN 208399446U
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Abstract
The utility model proposes a kind of second levels to be pyrolyzed analysis system, including the first six-way valve, primary adsorption pipe, second six-way valve, secondary absorption pipe and hot and cold side switching system, first six-way valve is for the absorption to primary adsorption pipe, desorption switches over, the 1 of first six-way valve, 4 interfaces are connected with primary adsorption pipe, the 1 of second six-way valve, 4 interfaces are connected with secondary absorption pipe, 5 interfaces of first six-way valve are connected with 3 interfaces of the second six-way valve, second six-way valve is for the absorption to secondary absorption pipe, desorption switches over, the hot and cold side switching system is for realizing primary adsorption pipe, the low temperature of secondary absorption pipe, high temperature shift, the hot and cold side switching system realizes adsorption tube cold end in such a way that guide rail is mobile, the fast cooling in hot end, heating switching, using multi-stage absorption, it can be improved The sampling amount of gaseous sample, in such a way that electric/pneumatic drives guide rail mobile, moment realizes that the heating of adsorption tube and cooling require.
Description
[technical field]
The utility model relates to the technical field of Thermal desorption, especially a kind of technical field of second level pyrolysis analysis system.
[background technique]
Thermal desorption technology is a kind of two in one technique: collection sampling with concentrate in one, then by sample from sampling pipe transfer
It is detected after being shifted out.Thermal desorption is released organic compound by the way of heating from sampling pipe, rather than is used
The method of solvent elution, this makes Thermal desorption technology avoid longer solvent elution time, and the solvent-free peak in chromatogram,
Electronic cooling low temperature is unstable in the prior art, and concentration effect is less desirable；Liquid nitrogen refrigerating: temperature is low but troublesome in poeration,
A kind of and waste liquid nitrogen, it is proposed that second level pyrolysis analysis system.
[utility model content]
The purpose of this utility model is exactly to solve the problems of the prior art, proposes a kind of second level pyrolysis analysis system, adopts
With multi-stage absorption, the sampling amount of gaseous sample can be improved, by fast resolving, reduce the widthization of chromatographic peak, pass through electronic/gas
The mobile mode of dynamic driving guide rail, moment realize that the heating of adsorption tube and cooling require.
To achieve the above object, the utility model proposes a kind of second levels to be pyrolyzed analysis system, including the first six-way valve, level-one
Adsorption tube, the second six-way valve, secondary absorption pipe and hot and cold side switching system, first six-way valve are used for primary adsorption pipe
Adsorption and desorption switches over, and 1,4 interfaces of first six-way valve are connected with primary adsorption pipe, second six-way valve
1,4 interfaces are connected with secondary absorption pipe, and 5 interfaces of first six-way valve are connected with 3 interfaces of the second six-way valve, and described second
Six-way valve is for switching over the adsorption and desorption of secondary absorption pipe, and the hot and cold side switching system is for realizing primary adsorption
Pipe, the low temperature of secondary absorption pipe, high temperature shift, the hot and cold side switching system realize that adsorption tube is cold in such a way that guide rail is mobile
End, hot end fast cooling, heating switching, the primary adsorption pipe by hot and cold side switching system enter elevated temperature desorption area into
Row concentrate desorption, the secondary absorption pipe by hot and cold side switching system enter in refrigeration system carry out low temperature aggregation adsorb or
It enters elevated temperature desorption area and carries out concentration desorption.
Preferably, 3 interfaces of first six-way valve are connected with pressure maintaining valve and switch valve, the 3 of first six-way valve
Interface is purge gass import, and after the switch valve for opening purge gass, foreign gas passes sequentially through the 3 of the first six-way valve, 4 interfaces, so
System is blown out by primary adsorption pipe, the 1 of the first six-way valve, 2 interfaces afterwards, 6 interfaces of first six-way valve are connected with pressure stabilizing
Valve and flow stabilizing valve, 6 interfaces of first six-way valve are carrier gas injection port, and carrier gas is entered by 6,1 interface of the first six-way valve
Then primary adsorption pipe passes sequentially through 4,5 interfaces and enters in the system of the second six-way valve, primary adsorption pipe is de- in high temperature at this time
Attached area.
Preferably, 3 interfaces of second six-way valve be carrier gas injection port, 5 interfaces of second six-way valve with point
Analyzer device is connected, and the carrier gas that the primary adsorption pipe elevated temperature desorption goes out enters second level suction by 3,4 interfaces of the second six-way valve
In attached pipe, low temperature aggregation absorption is carried out, secondary absorption pipe is in refrigeration system at this time, and second six-way valve is in secondary absorption
Foreign gas in switching state purge system after pipe completion absorption, then secondary absorption pipe enters elevated temperature desorption by guide rail
Area, carrier gas are successively passed through the 4 of the second six-way valve, 5 interfaces and are entered in analysis instrument.
Preferably, being equipped with refrigeration system in the hot and cold side switching system, the refrigeration modes of the refrigeration system are used
Low-temperature circulating refrigeration.
The utility model has the beneficial effects that the utility model by the first six-way valve, primary adsorption pipe, the second six-way valve,
The cooperation of secondary absorption pipe and hot and cold side switching system etc. can be improved the sampling amount of gaseous sample, passed through using multi-stage absorption
Fast resolving reduces the widthization of chromatographic peak, is driven by electric/pneumatic, and the mobile mode of guide rail, moment realizes the liter of adsorption tube
Mild cooling requires, and ensure that the consistency of sample analysis.
The feature and advantage of the utility model will be described in detail by embodiment combination attached drawing.
[Detailed description of the invention]
Fig. 1 is a kind of Technology Roadmap of second level pyrolysis analysis system of the utility model.
[specific embodiment]
Refering to fig. 1, a kind of second level of the utility model is pyrolyzed analysis system, including the first six-way valve, primary adsorption pipe, the two or six
Port valve, secondary absorption pipe and hot and cold side switching system, first six-way valve are used to carry out the adsorption and desorption of primary adsorption pipe
Switching, 1,4 interfaces of first six-way valve are connected with primary adsorption pipe, 1,4 interfaces and second level of second six-way valve
Adsorption tube be connected, 5 interfaces of first six-way valve are connected with 3 interfaces of the second six-way valve, second six-way valve be used for pair
The adsorption and desorption of secondary absorption pipe switches over, and the hot and cold side switching system is for realizing primary adsorption pipe, secondary absorption pipe
Low temperature, high temperature shift, the hot and cold side switching system realized in such a way that guide rail is mobile adsorption tube cold end, hot end it is quick
Cooling, heating switching, the primary adsorption pipe enter elevated temperature desorption area by hot and cold side switching system and carry out concentration desorption, institute
It states secondary absorption pipe and is entered in refrigeration system by hot and cold side switching system and carry out low temperature aggregation absorption or to enter high temperature de-
Attached area carries out concentration desorption.3 interfaces of first six-way valve are connected with pressure maintaining valve and switch valve, and the 3 of first six-way valve
Interface is purge gass import, and after the switch valve for opening purge gass, foreign gas passes sequentially through the 3 of the first six-way valve, 4 interfaces, so
System is blown out by primary adsorption pipe, the 1 of the first six-way valve, 2 interfaces afterwards, 6 interfaces of first six-way valve are connected with pressure stabilizing
Valve and flow stabilizing valve, 6 interfaces of first six-way valve are carrier gas injection port, and carrier gas is entered by 6,1 interface of the first six-way valve
Then primary adsorption pipe passes sequentially through 4,5 interfaces and enters in the system of the second six-way valve, primary adsorption pipe is de- in high temperature at this time
Attached area.3 interfaces of second six-way valve are carrier gas injection port, and 5 interfaces of second six-way valve are connected with analysis instrument, institute
It states the carrier gas that primary adsorption pipe elevated temperature desorption goes out to enter in secondary absorption pipe by 3,4 interfaces of the second six-way valve, carry out low
Temperature aggregation absorption, secondary absorption pipe is in refrigeration system at this time, and second six-way valve is after secondary absorption pipe completes absorption
Foreign gas in switching state purge system, then secondary absorption pipe enters elevated temperature desorption area by guide rail, and carrier gas successively passes through
4,5 interfaces for crossing the second six-way valve enter in analysis instrument.Refrigeration system, the system are equipped in the hot and cold side switching system
The refrigeration modes of cooling system are freezed using low-temperature circulating.
Utility model works process:
A kind of working principle of second level pyrolysis analysis system of the utility model are as follows: sample is adsorbed on level-one by sampling instrument and is pyrolyzed
In the primary adsorption pipe of analysis, sample is in member of the standing committee's state at this time, opens purging exhaust switch valve, the foreign gas in system is purged
Then system out blows out system to 1,2 interfaces by 3,4 interfaces, setting the first six-way valve at this time is the position that solid line leads to；Purging
After clean, the position that the first six-way valve of switching to dotted line leads to, then gas enters primary adsorption pipe by 6,1 interface, then passes through
4,5 interfaces enter in the system of the second six-way valve；The second six-way valve is in the logical position of solid line at this time, passes through guide rail (electronic/gas
It is dynamic) secondary absorption pipe is pushed into refrigeration system, for temperature since pipe is small, thermal capacitance is small, thus secondary absorption pipe instantaneous temperature reduction arrives
Then the elevated temperature desorption area set is desorbed by guide rail (electric/pneumatic), due to absorption in primary adsorption pipe by the low temperature of setting
The thermal capacitance of pipe is small, and sample instants are heated to desorption temperature, and concentration is desorbed out, be entered by the second six-way valve 3,4 interfaces low
In the secondary absorption pipe of temperature, carries out low temperature and focus absorption；After the completion of absorption, pass through the second six-way valve of switching position logical to dotted line
It sets, the foreign gas in purge system, secondary absorption pipe is pushed by the elevated temperature desorption set by guide rail (electric/pneumatic)
Area, since the thermal capacitance of adsorption tube is small, sample instants are heated to desorption temperature, enter GC or other analyzers by 4,5 interfaces
Device system.
Above-described embodiment is the explanation to the utility model, is not the restriction to the utility model, and any pair of sheet is practical new
Scheme after type simple transformation belongs to the protection scope of the utility model.
Claims (4)
1. a kind of second level is pyrolyzed analysis system, it is characterised in that: including the first six-way valve, primary adsorption pipe, the second six-way valve, second level
Adsorption tube and hot and cold side switching system, first six-way valve are described for switching over to the adsorption and desorption of primary adsorption pipe
1,4 interfaces of the first six-way valve are connected with primary adsorption pipe, and 1,4 interfaces of second six-way valve are connected with secondary absorption pipe,
5 interfaces of first six-way valve are connected with 3 interfaces of the second six-way valve, and second six-way valve is used for secondary absorption pipe
Adsorption and desorption switches over, and the hot and cold side switching system is for realizing primary adsorption pipe, the low temperature of secondary absorption pipe, high temperature
Conversion, the hot and cold side switching system realize that adsorption tube cold end, the fast cooling in hot end, heating are cut in such a way that guide rail is mobile
It changes, the primary adsorption pipe enters elevated temperature desorption area by hot and cold side switching system and carries out concentration desorption, the secondary absorption
Pipe is entered in refrigeration system by hot and cold side switching system to be carried out low temperature aggregation absorption or enters elevated temperature desorption area to be collected
Middle desorption.
2. a kind of second level as described in claim 1 is pyrolyzed analysis system, it is characterised in that: 3 interfaces of first six-way valve connect
It is connected to pressure maintaining valve and switch valve, 3 interfaces of first six-way valve are purge gass import, miscellaneous after the switch valve for opening purge gass
Matter gas passes sequentially through the 3 of the first six-way valve, 4 interfaces, then by primary adsorption pipe, the 1 of the first six-way valve, the blowout of 2 interfaces
System, 6 interfaces of first six-way valve are connected with pressure maintaining valve and flow stabilizing valve, 6 interfaces of first six-way valve be carrier gas into
Sample mouth, carrier gas enter primary adsorption pipe by 6,1 interface of the first six-way valve, then pass sequentially through 4,5 interfaces into the two or six
In the system of port valve, primary adsorption pipe is in elevated temperature desorption area at this time.
3. a kind of second level as described in claim 1 is pyrolyzed analysis system, it is characterised in that: 3 interfaces of second six-way valve are
5 interfaces of carrier gas injection port, second six-way valve are connected with analysis instrument, the carrier gas that the primary adsorption pipe elevated temperature desorption goes out
It is entered in secondary absorption pipe by the 3 of the second six-way valve, 4 interfaces, carries out low temperature aggregation absorption, secondary absorption pipe is at this time
In refrigeration system, second six-way valve foreign gas in switching state purge system after secondary absorption pipe completes absorption, so
Secondary absorption pipe enters elevated temperature desorption area by guide rail afterwards, and carrier gas is successively passed through the 4 of the second six-way valve, 5 interfaces and entered point
In analyzer device.
4. a kind of second level as described in claim 1 is pyrolyzed analysis system, it is characterised in that: be equipped in the hot and cold side switching system
The refrigeration modes of refrigeration system, the refrigeration system are freezed using low-temperature circulating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821146051.5U CN208399446U (en) | 2018-07-19 | 2018-07-19 | A kind of second level pyrolysis analysis system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821146051.5U CN208399446U (en) | 2018-07-19 | 2018-07-19 | A kind of second level pyrolysis analysis system |
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| CN208399446U true CN208399446U (en) | 2019-01-18 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109030679A (en) * | 2018-07-19 | 2018-12-18 | 浙江赛鹭鑫仪器有限公司 | A kind of second level pyrolysis analysis system |
| CN111044649A (en) * | 2020-03-18 | 2020-04-21 | 山东海慧环境科技有限公司 | Gas analysis device |
-
2018
- 2018-07-19 CN CN201821146051.5U patent/CN208399446U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109030679A (en) * | 2018-07-19 | 2018-12-18 | 浙江赛鹭鑫仪器有限公司 | A kind of second level pyrolysis analysis system |
| CN111044649A (en) * | 2020-03-18 | 2020-04-21 | 山东海慧环境科技有限公司 | Gas analysis device |
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