CN209707223U - A kind of full-automatic heat desorption instrument - Google Patents
A kind of full-automatic heat desorption instrument Download PDFInfo
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- CN209707223U CN209707223U CN201920357503.2U CN201920357503U CN209707223U CN 209707223 U CN209707223 U CN 209707223U CN 201920357503 U CN201920357503 U CN 201920357503U CN 209707223 U CN209707223 U CN 209707223U
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Abstract
The utility model discloses a kind of full-automatic heat desorption instruments, including automatic sample handling system, sample desorption furnace, secondary desorption furnace, air-channel system and controller；The automatic sample handling system is connected to the air-channel system, and the air-channel system successively passes through the sample desorption furnace and secondary desorption furnace, and the sample desorption furnace, secondary desorption furnace, air-channel system are electrically connected the controller.The full-automatic heat desorption instrument of the utility model has the function of second adsorption desorption, and desorption peak type is good and desorption efficiency is high.
Description
Technical field
The utility model relates to field of analytic instrument, and in particular to a kind of full-automatic heat desorption instrument.
Background technique
Thermal desorptioner is a kind of device that pre-treatment can be carried out to analysis sample.Great advantage be can mitigate significantly it is both numerous
Trivial and time-consuming Artificial sample treatment process.Thermal desorptioner has become total volatile organic compounds in room air at present
(TVOC) standard method detected.The method be widely used for sky gas and water, in pedotheque micro-content organism detection；Food
The detection of product and packaging material volatile component；Environmental monitoring；Fragrance aroma；Drug residual solvents；The detection of people's expiratory air etc..
Existing thermal desorptioner, it is primary to desorb, there is a problem of desorbing peak type difference and desorption efficiency is low.
Utility model content
The utility model provides a kind of full-automatic heat desorption instrument with second adsorption desorption function, and specific structure is such as
Under:
A kind of full-automatic heat desorption instrument, including automatic sample handling system, sample desorption furnace, secondary desorption furnace, air-channel system and
Controller；The automatic sample handling system is connected to the air-channel system, the air-channel system successively pass through the sample desorption furnace and
Secondary desorption furnace, the sample desorption furnace, secondary desorption furnace, air-channel system are electrically connected the controller；
The automatic sample handling system includes upper push-rod motor, middle push-rod electric machine, lower push-rod motor, upper-side hole syringe needle, downside
Hole syringe needle, upper three-way connection, lower three-way connection, the sample disc for placing multiple desorption tubes, sample disc alignment sensor and step
Into motor；The upper push-rod motor, middle push-rod electric machine, lower push-rod motor, sample disc alignment sensor, stepper motor are electrically connected
The controller；
The upper push-rod motor and lower push-rod motor pass through respectively described in the upper three-way connection connects with lower three-way connection
Upper-side hole syringe needle and lower-side hole syringe needle, the upper three-way connection, lower three-way connection, upper-side hole syringe needle are connected to lower-side hole syringe needle
The air-channel system.
In one embodiment of the utility model, the air-channel system include vent line and be set to the vent line
On nitrogen inlet, pressure maintaining valve, pressure gauge, the first triple valve, other two interface of first triple valve one of them
The first branch and second branch are connected, another connection third branch；The first 2/2-way is successively arranged in the first branch
Valve, flowmeter and analog sampling export, and are successively arranged the second 2/2-way valve, the first needle-valve, the two or three in the second branch
Port valve, one of connection sample of other two interface of second triple valve desorb the desorption tube in furnace, another company
The first two-position three-way valve of the third branch is connect, the other end of the desorption tube connects four-way valve；Third branch road according to
It is secondary to be equipped with the second needle-valve, the first two-position three-way valve, third triple valve, wherein the one of other two interface of the third triple valve
A connection waste gas outlet, another is sequentially connected third 2/2-way valve and the 4th triple valve, and the 4th triple valve is in addition
One of connection of two interfaces it is secondary desorption furnace in second level desorption tube, the second level desorption tube the other end connection described in
Four-way valve, another second two-position three-way valve of connection, second two-position three-way valve are separately connected carrier gas inlet and the four-way
Valve；It is set in incubator from the secondary desorption furnace to the air path part of the four-way valve and the four-way valve；The controller
Also it is electrically connected first triple valve, the first 2/2-way valve, the second 2/2-way valve, the second triple valve, the first two-bit triplet
Valve, third triple valve, third 2/2-way valve, the 4th triple valve, the second two-position three-way valve, four-way valve.
In one embodiment of the utility model, heating dress is equipped in the sample desorption furnace and secondary desorption furnace
It sets, temperature sensor and insulating layer, is additionally provided with refrigerating plant in the secondary desorption furnace；
The controller is also electrically connected the heating device and temperature sensor；The controller is also electrically connected touch-control and shows
Screen.
In one embodiment of the utility model, the heating device of sample desorption furnace includes heating rod and thermally conductive
Block, the heating rod heat the heat-conducting block, and the heat-conducting block heats the desorption tube being located in the sample disc；
The heating device of the secondary desorption furnace is the liquid nitrogen container and heater strip for being surrounded on secondary desorption tube.
In one embodiment of the utility model, the refrigerating plant is liquid nitrogen refrigerating apparatus, the secondary desorption furnace
It is interior to be equipped with the liquid nitrogen container for being surrounded on secondary desorption tube.
In one embodiment of the utility model, the refrigerating plant is semiconductor cooling device, including semiconductor system
Cold piece, the semiconductor refrigerating block is electrically connected the controller；The heat absorbing end connection ring of the semiconductor refrigerating block is set to secondary
The radiating end connection of cold-making block outside desorption tube, the semiconductor refrigerating block is at least partly exposed to outside the secondary desorption furnace
Radiating block.
It further include transfer line and fan and heat release hole in one embodiment of the utility model.
It also further include the sample area lid and instrument wicket on shell in one embodiment of the utility model.
In the description of the present invention, if be related to term " front end ", " bottom ", " one end ", "outside", "horizontal",
"inner", "upper", " top ", " rear end ", " both ends ", "horizontal", " lower section ", " inside ", " lower end ", " lower section ", " lower part ", " on
The orientation or positional relationships of instructions such as side " are unless specified or limited otherwise to be based on the orientation or positional relationship shown in the drawings, be for
Convenient for description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have specifically
Orientation is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
The utility model has the advantages that
The full-automatic heat desorption instrument of the utility model has the function of second adsorption desorption, and desorption peak type is good and desorption efficiency is high.
Detailed description of the invention
Fig. 1 is the primary structure schematic diagram of the full-automatic heat desorption instrument of the utility model；
Fig. 2 is the top view of the full-automatic heat desorption instrument sample disc of the utility model；
Fig. 3 is the structural schematic diagram of the full-automatic heat desorption instrument sample disc positioning system of the utility model；
Fig. 4 is the external structure schematic diagram of the full-automatic heat desorption instrument of the utility model；
Fig. 5 is the full-automatic heat desorption instrument external structure rearview of the utility model；
Fig. 6 is the connection schematic diagram of the full-automatic heat desorption instrument air-channel system of the utility model；
The scale bar and disunity of each figure in the figures above, clear in order to watch, each figure is fitted on the basis of existing
When scaling.
In figure, sample desorbs furnace 13, secondary desorption furnace 14, upper push-rod motor 31, middle push-rod electric machine 32, lower push-rod motor
33, upper-side hole syringe needle 34, lower-side hole syringe needle 35, upper three-way connection 36, lower three-way connection 37, sample disc 10, sample disc positioning pass
Sensor 11, stepper motor 12, nitrogen inlet 411, pressure maintaining valve 412, pressure gauge 413, the first triple valve 414, the first branch 420,
Second branch 430, third branch 440, the first 2/2-way valve 421, flowmeter 422, analog sampling outlet 423, the second two
Two-way valve 431, the first needle-valve 432, the second triple valve 433, the first two-position three-way valve 442, four-way valve 450, the second needle-valve 441,
First two-position three-way valve 442, third triple valve 443, waste gas outlet 444, third 2/2-way valve 445, the 4th triple valve 446,
Second two-position three-way valve 448, carrier gas inlet 449, incubator 451, touching display screen 5, transfer line 53, connection electric wire, power supply
Switch 54, power outlet 62, heat release hole 61, sample area lid 52, instrument wicket 56.
Specific embodiment
By the technology contents of the utility model are described in detail, construction feature, are reached purpose and efficacy, reality is hereby enumerated below
It applies example and attached drawing is cooperated to be explained in detail.
A kind of full-automatic heat desorption instrument, including automatic sample handling system, sample desorb furnace 13, secondary desorption furnace 14, gas circuit system
System and controller；The automatic sample handling system is connected to the air-channel system, and the air-channel system successively passes through the sample desorption
Furnace 13 and secondary desorption furnace 14, the sample desorption furnace 13, secondary desorption furnace 14, air-channel system are electrically connected the controller；
The automatic sample handling system includes upper push-rod motor 31, middle push-rod electric machine 32, lower push-rod motor 33, upper-side hole syringe needle
34, lower-side hole syringe needle 35, upper three-way connection 36, lower three-way connection 37, sample disc 10, sample disc for placing multiple desorption tubes
Alignment sensor 11 and stepper motor 12；The upper push-rod motor 31, middle push-rod electric machine 32, lower push-rod motor 33, sample disc are fixed
Level sensor 11, stepper motor 12 are electrically connected the controller；
The upper push-rod motor 31 and lower push-rod motor 33 pass through the upper three-way connection 36 and lower three-way connection 37 respectively
Connect the upper-side hole syringe needle 34 and lower-side hole syringe needle 35, the upper three-way connection 36, lower three-way connection 37, upper-side hole syringe needle 34
The air-channel system is connected to lower-side hole syringe needle 35.
The air-channel system include vent line and nitrogen inlet 411 on the vent line, pressure maintaining valve 412,
Pressure gauge 413, the first triple valve 414, one of connection first branch of other two interface of first triple valve 414
420 and second branch 430, another connection third branch 440；The first 2/2-way valve is successively arranged in the first branch
421, flowmeter 422 and analog sampling export 423, are successively arranged the second 2/2-way valve 431, the first needle in the second branch
One of connection sample of valve 432, the second triple valve 433, other two interface of second triple valve 433 desorbs furnace 13
In desorption tube, another connects the first two-position three-way valve 442 of the third branch, the other end connection four of the desorption tube
Port valve 450；The third branch road is successively arranged the second needle-valve 441, the first two-position three-way valve 442, third triple valve 443, institute
One of connection waste gas outlet 444 of other two interface of third triple valve 443 is stated, another is sequentially connected third two
Two-way valve 445 and the 4th triple valve 446, the secondary solution of one of connection of other two interface of the 4th triple valve 446
The second level desorption tube in furnace 14 is inhaled, the other end of the second level desorption tube connects the four-way valve 450, another second liang of connection
Position three-way valve 448, second two-position three-way valve 448 are separately connected carrier gas inlet 449 and the four-way valve 450；From described two
The air path part and the four-way valve 450 of secondary desorption furnace 14 to the four-way valve 450 are set in incubator 451；The controller
Also be electrically connected first triple valve 414, the first 2/2-way valve 421, the second 2/2-way valve 431, the second triple valve 433,
First two-position three-way valve 442, third triple valve 443, third 2/2-way valve 445, the 4th triple valve 446, the second two-bit triplet
Valve 448, four-way valve 450.
Heating device, temperature sensor and insulating layer, institute are equipped in the sample desorption furnace 13 and secondary desorption furnace 14
It states in secondary desorption furnace 14 and is additionally provided with refrigerating plant；
The controller is also electrically connected the heating device and temperature sensor；The controller is also electrically connected touch-control and shows
Screen 51.
The heating device of the sample desorption furnace 13 includes heating rod and heat-conducting block, and the heating rod adds the heat-conducting block
Heat, the heat-conducting block heat the desorption tube being located in the sample disc 10；
The heating device of the secondary desorption furnace 14 is the liquid nitrogen container and heater strip for being surrounded on secondary desorption tube.
The refrigerating plant can be liquid nitrogen refrigerating apparatus, be equipped in the secondary desorption furnace 14 and be surrounded on secondary desorption tube
Liquid nitrogen container.The refrigerating plant may be semiconductor cooling device, including semiconductor refrigerating block, the semiconductor refrigerating
Block is electrically connected the controller；The heat absorbing end connection ring of the semiconductor refrigerating block is set to the cold-making block outside secondary desorption tube, institute
The radiating end connection for stating semiconductor refrigerating block is at least partly exposed to the secondary radiating block desorbed outside furnace 14.
It can also include transfer line 53 and fan and heat release hole 61.
It can also include the sample area lid 52 and instrument wicket 56 on shell.
The full-automatic heat desorption instrument of the utility model, each sensor, solenoid valve, heating device, motor are and controller
Connection, circuit can be integrated circuit or general element.Controller connects to be obtained received from the input of touching display screen parameter and sensor
The signal arrived, output control the folding of each solenoid valve, the operating of each motor and stopping and heating device heating temperature and
The time of heating.Solenoid valve, motor, heating device and sensor are commercially available commodity, and the controller of the utility model is selected
Be STM32 type single-chip microcontroller, controller can also for microprocessor, other single-chip microcontrollers, PLC, FPGA programmable logic gate circuit,
SoC system level chip, those skilled in the art can according to need free type selecting, should not be understood as the guarantor to the utility model
Protect the limitation of range.
When the full-automatic heat desorption instrument work of the utility model, sample disc 10 places desorption tube, and power is mentioned by stepper motor
For stepper motor is rotated by controller driving sample disc, and the position of desorption tube is positioned by sample disc alignment sensor 11.Specifically
, in one embodiment of the utility model, sample disc alignment sensor is photoelectric sensor, including two, the sample
Several sample disc stations being circumferentially evenly arranged are offered on disk, the outer rim of the sample disc is equipped with several circumferentially uniform cloth
Each sample station of the locating aperture set, the sample disc 10 corresponds to a locating holes, and dead-center position is individual
Locating holes determine sample disc station by the on-off of light optoelectronic switch.When photoelectric sensor 1 and photoelectric sensor 2 simultaneously
It is origin (zero point) position when connection, corresponding sample station is No. 1 position, when going to adjacent status locating holes, photoelectricity
Switch 1 is disconnected, and optoelectronic switch 2 is connected, and is No. 2 positions, and so on.As shown in connection with fig. 3, stepper motor 12 is connect by flange
First 15 connect with sample disc 10, and sample disc alignment sensor 11 is fixedly connected on the partition 18 by bracket 17, it is described every
Plate 18 is fixedly attached on machine case, offers what the output shaft 16 for the stepper motor 12 passed through on the partition 18
Through-hole.
After sample disc 10 rotate in place, as shown in connection with fig. 1, upper push-rod motor 31 is inserted into upper-side hole syringe needle 34 in desorption tube
Mouthful, lower-side hole syringe needle 35 is inserted into mouth under desorption tube by lower push-rod motor 33, and middle push-rod electric machine 32 pushes sample desorption furnace 13 to solution
Suction pipe heating, three branch pipes of three-way connection are separately connected side-hole pinhead, gas circuit and push-rod electric machine, connect this end of push-rod electric machine
Stuffiness is screwed in above push-rod electric machine by nipple, plays the role of being connected and fixed, while being sealed air tight.Three connect
Other two branch pipe of head, is separately connected into air-channel system and side-hole pinhead.Desorption tube both ends are sealed with rubber plug, and upper and lower two
The side-hole pinhead for accessing air-channel system is inserted into desorption tube, is connected to desorption tube, realizes that desorption tube is connected to air-channel system.
Sample desorbs furnace 13 and mainly heats to desorption tube, specifically, in one embodiment of the utility model, it is described
The heating device that sample desorbs furnace 13 includes heating rod and heat-conducting block, and the heating rod heats the heat-conducting block, described thermally conductive
Block heats the desorption tube being located in the sample disc 10.Sample desorption furnace be it is open, heating device includes heating
Stick and heat-conducting block, the heating rod heat the heat-conducting block, and the heat-conducting block adds the desorption tube being located in the sample disc
Heat；Desorption tube is exposed upward or downward in sample disc requires heat to middle section, and the heat-conducting block side, which is equipped with, accommodates solution
The notch of suction pipe, by the heat-conducting block around notch to being heated in the middle part of desorption tube.
Specifically, the heating device of the secondary desorption furnace 14 is to be surrounded in one embodiment of the utility model
The liquid nitrogen container and heater strip of secondary desorption tube.The refrigerating plant can be liquid nitrogen refrigerating apparatus, the secondary desorption furnace 14
It is interior to be equipped with the liquid nitrogen container for being surrounded on secondary desorption tube.As another embodiment, the refrigerating plant is semiconductor refrigerating
Device, the heat absorbing end connection ring of the semiconductor refrigerating block are set to the cold-making block outside secondary desorption tube, the semiconductor refrigerating block
Radiating end connection be at least partly exposed to it is described it is secondary desorption furnace 14 outside radiating block.
Specifically, as shown in connection with fig. 5, waste gas outlet facilitates connecting line in one embodiment of the utility model, it can
Exhaust gas is discharged to outdoor by pipeline, prevents exhaust emission Laboratory Air；Needle-valve adjusts exhaust gas flow；Carrier gas inlet connection
Chromatograph carrier gas；Assist gas entrance connection carrier gas (usually nitrogen, identical as chromatography carrier gas).Specifically, gas circuit such as Fig. 6 institute
Show.
When standby mode, the first 2/2-way valve 21, the second 2/2-way valve 31 and third 2/2-way valve 45 are turned off,
1 and the 2 of first two-position three-way valve 42 and the second two-position three-way valve 48 are logical, the connection desorption furnace 34 of four-way valve 50 and secondary desorption and
The interface of refrigeration case 47 is logical, and the interface for connecting the second two-position three-way valve 48 and gas phase GC is logical.
When enrichment state, the first 2/2-way valve 21 and the second 2/2-way valve 31 are turned off, third 2/2-way valve 45
Logical, 1 and the 3 of the first two-position three-way valve 42 are logical, and 1 and the 2 of the second two-position three-way valve 48 are logical, and the connection of four-way valve 50 desorbs furnace 34
Logical with the interface of secondary desorption and refrigeration case 47, the interface for connecting the second two-position three-way valve 48 and gas phase GC is logical.
When sample introduction state, the first 2/2-way valve 21, the second 2/2-way valve 31 and third 2/2-way valve 45 are turned off,
1 and the 3 of first two-position three-way valve 42 are logical, and 1 and the 2 of the second two-position three-way valve 48 are logical, the connection desorption furnace 34 of four-way valve 50 and the
The interface of two two-position three-way valves 48 is logical, and the interface for connecting secondary desorption and refrigeration case 47 and gas phase GC is logical.
When blowback state, the first 2/2-way valve 21 and third 2/2-way valve 45 are turned off, the second 2/2-way valve 31
Logical, the first two-position three-way valve 42 and the second two-position three-way valve 48 are 1 and 2 logical, the connection desorption furnace 34 of four-way valve 50 and secondary
The interface of desorption and refrigeration case 47 is logical, and the interface for connecting the second two-position three-way valve 48 and gas phase GC is logical.
When simulant standard samples sample states, the first 2/2-way valve 21 is logical, the second 2/2-way valve 31 and third 2/2-way
Valve 45 is turned off, 1 and 2 logical, the connection desorption furnaces 34 of four-way valve 50 of the first two-position three-way valve 42 and the second two-position three-way valve 48
Logical with the interface of secondary desorption and refrigeration case 47, the interface for connecting the second two-position three-way valve 48 and gas phase GC is logical.
In above-mentioned state description, logical 2/2-way valve is that 2/2-way valve is opened.The 1 and 2 of first two-position three-way valve 42
Logical, as the second needle-valve 41, the first two-position three-way valve 42, the gas circuit of third triple valve 43 are logical, the second triple valve 33, the first two
The gas circuit of triple valve 42 is closed.Logical 1 and 2 logical in 1 and the 2 of second two-position three-way valve 48, as third triple valve 43, the second two three
Port valve 48, the gas circuit of four-way valve 50 are logical, the gas circuit pass of third triple valve 43, the 4th triple valve 46.
The full-automatic heat desorption instrument of the utility model, each state can according to need free arrangement.In general situation
It can be following process: being in standby after turning on the power switch, it is complete into enrichment state after automatic sample handling system work
At sample introduction state is entered after enrichment state, then blowback carries out the enrichment state of next desorption tube, and so on, until complete
At all processing.Simulant standard samples sampling is used for test machine performance, can carry out before handling sample or as needed.
Specifically, can also include being located at outside shell as shown in connection with fig. 4 in one embodiment of the utility model
Transfer line 53 heats the gas circuit of its inside, can use low-pressure heating, prevent sample from condensing in transmit process,
Transfer line is directly connected with gas chromatograph.It can also include the sample area lid 52 and instrument wicket 56 on shell.It beats
Configured sample can be placed by opening sample area lid 52, covered when not used, prevented sundries from falling into instrument internal；Open instrument wicket
56, to flowmeter, pressure maintaining valve, pressure gauge, after setting pressure and flow parameter, Guan Shang, prevent other staff change pressure and
Flow set.
Specifically, can also include fan and heat release hole as shown in connection with fig. 5 in one embodiment of the utility model
61 circulation instrument internals and indoor temperature, prevent instrument internal temperature too high and influence instrument performance；As shown in connection with fig. 2, also
It may include being located at the intracorporal incubator 451 of shell, it is interior to be equipped with heating device and insulating layer, prevent sample cold in transmit process
It is solidifying.
In conclusion the preferred embodiment of only the utility model, does not limit the protection scope of the utility model with this, it is all
Equivalent changes and modifications made according to the scope of the patent of the utility model and the content of the manual are all what the utility model patent covered
Within the scope of.
Claims (8)
1. a kind of full-automatic heat desorption instrument, which is characterized in that desorb furnace (13), secondary desorption including automatic sample handling system, sample
Furnace (14), air-channel system and controller；The automatic sample handling system is connected to the air-channel system, and the air-channel system successively passes through
Sample desorption furnace (13) and secondary desorption furnace (14), the sample desorb furnace (13), secondary desorption furnace (14), air-channel system
It is electrically connected the controller；
The automatic sample handling system includes upper push-rod motor (31), middle push-rod electric machine (32), lower push-rod motor (33), upper-side hole needle
Head (34), lower-side hole syringe needle (35), upper three-way connection (36), lower three-way connection (37), the sample for placing multiple desorption tubes
Disk (10), sample disc alignment sensor (11) and stepper motor (12)；The upper push-rod motor (31), middle push-rod electric machine (32),
Lower push-rod motor (33), sample disc alignment sensor (11), stepper motor (12) are electrically connected the controller；
The upper push-rod motor (31) and lower push-rod motor (33) pass through the upper three-way connection (36) and lower three-way connection respectively
(37) connect the upper-side hole syringe needle (34) and lower-side hole syringe needle (35), the upper three-way connection (36), lower three-way connection (37),
Upper-side hole syringe needle (34) is connected to the air-channel system with lower-side hole syringe needle (35).
2. a kind of full-automatic heat desorption instrument as described in claim 1, which is characterized in that the air-channel system includes vent line
Be set to the vent line on nitrogen inlet (411), pressure maintaining valve (412), pressure gauge (413), the first triple valve (414),
One of connection first branch (420) of other two interface of first triple valve (414) and second branch (430),
Another connection third branch (440)；The first 2/2-way valve (421), flowmeter (422) are successively arranged in the first branch
Export (423) with analog sampling, be successively arranged in the second branch the second 2/2-way valve (431), the first needle-valve (432),
One of connection sample of second triple valve (433), other two interface of second triple valve (433) desorbs furnace (13)
In desorption tube, another connects the first two-position three-way valve (442) of the third branch, the other end connection of the desorption tube
Four-way valve (450)；The third branch road is successively arranged the second needle-valve (441), the first two-position three-way valve (442), third threeway
Valve (443), one of connection waste gas outlet (444) of other two interface of the third triple valve (443), another according to
Secondary connection third 2/2-way valve (445) and the 4th triple valve (446), other two interface of the 4th triple valve (446)
Secondary desorption furnace (14) of one of connection in second level desorption tube, the other end of the second level desorption tube connects the four-way
Valve (450), another connection the second two-position three-way valve (448), second two-position three-way valve (448) are separately connected carrier gas inlet
(449) and the four-way valve (450)；It is from secondary desorption furnace (14) to the air path part of the four-way valve (450) and described
Four-way valve (450) is set in incubator (451)；The controller is also electrically connected first triple valve (414), the first two two
Port valve (421), the second 2/2-way valve (431), the second triple valve (433), the first two-position three-way valve (442), third triple valve
(443), third 2/2-way valve (445), the 4th triple valve (446), the second two-position three-way valve (448), four-way valve (450).
3. a kind of full-automatic heat desorption instrument as described in claim 1, which is characterized in that the sample desorption is furnace (13) and secondary
It is equipped with heating device, temperature sensor and insulating layer in desorption furnace (14), is additionally provided with refrigeration in the secondary desorption furnace (14)
Device；
The controller is also electrically connected the heating device and temperature sensor；The controller is also electrically connected touching display screen
(51)。
4. a kind of full-automatic heat desorption instrument as claimed in claim 3, which is characterized in that the heating of sample desorption furnace (13)
Device includes heating rod and heat-conducting block, and the heating rod heats the heat-conducting block, and the heat-conducting block is to positioned at the sample disc
(10) the desorption tube heating on；It is described it is secondary desorption furnace (14) heating device be surrounded on secondary desorption tube liquid nitrogen container and
Heater strip.
5. a kind of full-automatic heat desorption instrument as claimed in claim 3, which is characterized in that the refrigerating plant is liquid nitrogen refrigerating dress
It sets, is equipped with the liquid nitrogen container for being surrounded on secondary desorption tube in secondary desorption furnace (14).
6. a kind of full-automatic heat desorption instrument as claimed in claim 3, which is characterized in that the refrigerating plant is semiconductor refrigerating
Device, including semiconductor refrigerating block, the semiconductor refrigerating block are electrically connected the controller；The heat absorption of the semiconductor refrigerating block
Connection ring is held to be set to the cold-making block outside secondary desorption tube, the radiating end connection of the semiconductor refrigerating block is at least partly exposed to institute
State the radiating block of secondary desorption furnace (14) outside.
7. a kind of full-automatic heat desorption instrument as described in claim 1, which is characterized in that further include transfer line (53) and fan
And heat release hole (61).
8. a kind of full-automatic heat desorption instrument as described in claim 1, which is characterized in that further include the sample area on shell
Cover (52) and instrument wicket (56).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920357503.2U CN209707223U (en) | 2019-03-20 | 2019-03-20 | A kind of full-automatic heat desorption instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920357503.2U CN209707223U (en) | 2019-03-20 | 2019-03-20 | A kind of full-automatic heat desorption instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209707223U true CN209707223U (en) | 2019-11-29 |
Family
ID=68644843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920357503.2U Active CN209707223U (en) | 2019-03-20 | 2019-03-20 | A kind of full-automatic heat desorption instrument |
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| Country | Link |
|---|---|
| CN (1) | CN209707223U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113945659A (en) * | 2021-10-13 | 2022-01-18 | 江苏天瑞仪器股份有限公司 | Gas path operation adjusting method for rapid thermal cracking RoHS detector |
-
2019
- 2019-03-20 CN CN201920357503.2U patent/CN209707223U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113945659A (en) * | 2021-10-13 | 2022-01-18 | 江苏天瑞仪器股份有限公司 | Gas path operation adjusting method for rapid thermal cracking RoHS detector |
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