CN208504804U - A kind of ultralow temperature condensation enrichment system - Google Patents
A kind of ultralow temperature condensation enrichment system Download PDFInfo
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- CN208504804U CN208504804U CN201820842984.1U CN201820842984U CN208504804U CN 208504804 U CN208504804 U CN 208504804U CN 201820842984 U CN201820842984 U CN 201820842984U CN 208504804 U CN208504804 U CN 208504804U
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Abstract
A kind of ultralow temperature provided by the utility model condenses enrichment system, it include: except water piping system, enrichment parsing pipe-line system, refrigeration system, cold source distribution system, adiabatic system and control system, wherein control system is by control except water piping system, enrichment parsing pipe-line system, refrigeration system, the work of cold source distribution system realize sample gas except aqueous mode, target substance condensation Enrichment Mode in sample gas, target substance heats interpretive model in sample gas, and remove water pipe heat drying mode.Enrichment system is not only high performance integrates water removal, enrichment, parsing function for the ultralow temperature condensation of the utility model, but also small in size, low in energy consumption.
Description
Technical field
The utility model relates to gas beneficiation technologies fields, and in particular to a kind of ultralow temperature condensation enrichment system.
Background technique
It is controlled in atmospheric monitoring and VOCs, that is, volatile organic compounds (volatile organic compounds) monitoring
In reason field, need that monitoring objective gas is enriched with and is concentrated to improve monitoring accuracy and monitoring efficiency.Current enrichment
Concentration technique mainly has absorption and two kinds of cryogenic condensation.Wherein adsorption technology is to be situated between by being passed through sample gas filled with absorption
In the pipeline of matter, the target substance in sample gas is enriched with suction-operated.The advantage of this mode is device structure
Relatively easy, cost is relatively low, and disadvantage is while to need to regularly replace adsorbing medium to the more demanding of adsorbing medium, and different
The different adsorbing medium of material demand, moieties are difficult to effectively be enriched with, while easily remaining in desorption, influence to examine knot
Fruit.Cryogenic condensation technology be by the way that sample gas is passed through cryotrap, make target substance temperature therein be reduced to dew point or
Freezing point is hereinafter, and condensing in cold-trap surface and being enriched with.Its advantage is without filling adsorbent, production cost and maintenance cost
Relative reduction, Sync enrichment effect is more excellent, and light pipe thermal desorption is not easy to remain, and keeps monitoring result more accurate.
It is enriched with field in gas, is cooled down frequently with to quartz ampoule to carry out cooling richness to the gas flowed through inside quartz ampoule
Collection.Since the concentration of VOCs itself is extremely low, when VOCs is flowed through inside quartz ampoule, therefore, to assure that the tube body of quartz ampoule and outer
Mass exchange is not generated between boundary's environment, in case extraneous impurity, which flows into inside quartz ampoule, causes shadow to final measurement result
It rings.In the prior art, frequently with stainless steel layer is arranged on the outside of quartz ampoule, since the consistency of stainless steel will be much higher than quartz
Pipe, therefore can prevent impurity from flowing into quartz ampoule well by stainless steel.
When VOCs is after enrichment, need to heat quartz ampoule again, so that enriched VOCs flows after gasifying
Out, measurement of concetration is carried out.CN105043846A discloses a kind of volatile organic matter sample gas trapping system and capture method, including
Inlet duct, de-watering apparatus, the capturing device being sequentially connected, the de-watering apparatus include condensation head, which includes: and remove
What water installations cold-trap was connected removes water tube base, is wound in except the passive metal on water tube base is except water pipe；The passive metal is except water pipe
Inlet end is connected with inlet duct, and outlet side is connected with capturing device；The capturing device includes trapping head, which includes
The trapping tube socket being connected with capturing device cold-trap, the passive metal trap tube being wound on trapping tube socket；The passive metal is caught
The inlet end of collector is connected with de-watering apparatus, and outlet side is connected with gas analyzer device；The two of the passive metal trap tube
End is connected with heating power supply.Passive metal is wrapped in except on water tube base except water pipe in the prior art, except water pipe without and cold-trap
Directly contact, passive metal trap tube be wrapped in trapping tube socket on, trap tube does not contact directly with cold-trap, loss of refrigeration capacity compared with
Greatly, condensation efficiency is lower, then needs to provide the cold source of more High cooling power to make up the cooling capacity of loss, cause overall structure it is bulky,
Power consumption is big.And except water pipe is different from the cryogenic temperature at different location on trap tube, gas is except cold in water pipe or trap tube
Solidifying uneven, arresting efficiency is lower.In addition, a set of condenser system is needed except the condensation of water pipe and trap tube is each, so as to cause whole
The volume of a volatile organic matter sample gas trapping system is big, and cost is high.
Utility model content
Therefore, the technical problem to be solved by the present invention is to overcome volatile organic matter sample gas trapping in the prior art
The volume of system is larger, the biggish defect of loss of refrigeration capacity, thus the ultralow temperature for providing a kind of small volume, can reducing loss of refrigeration capacity
Condense enrichment system.
In order to solve the above technical problems, a kind of ultralow temperature provided by the utility model condenses enrichment system, comprising:
Except water piping system, including water pipe is removed, and water removal pipe heating device, wherein except water pipe includes the first pipeline layer,
The second pipeline layer in the outside of the first pipeline layer is set, and the second pipeline layer is used to cooling capacity being transferred to described first
On pipeline layer, freeze to the first pipeline layer, makes to condense by the vapor in the sample gas in the first pipeline layer
On the inner wall of the first pipeline layer, sample gas water removal is realized, the water removal pipe heating device is used for first pipe
Floor heating in road evaporates the vapor being condensate in the first pipeline floor, realizes except water pipe is dry；
Enrichment parsing pipe-line system, including enrichment analytic tube, and enrichment parsing pipe heating device, wherein being enriched with analytic tube
Including third pipeline layer, it is set in the 4th pipeline layer in the outside of the third pipeline layer, the inlet end of the third pipeline layer
It being connected to the outlet side of the first pipeline layer, the 4th pipeline layer is used to cooling capacity being transferred to the third pipeline layer,
Freeze to the third pipeline layer, makes to be condensate in described the by the target substance in the sample gas in the third pipeline layer
On the inner wall of three pipeline layers, target substance enrichment is realized, the enrichment parsing pipe heating device is used for the third pipeline layer
Heating makes the target substance for being condensate in the third pipeline layer carry out heating parsing；
Cold source provides device, is separately connected with the second pipeline layer, the 4th pipeline layer, is second pipeline
Layer, the 4th pipeline layer provide institute's chilling requirement；
Control system provides device, the water removal pipe heating device, the enrichment analytic tube with the cold source respectively and heats
Device electrical connection provides device, the water removal pipe heating device, enrichment parsing pipe heating device by controlling the cold source
Work realizes that target substance condensation Enrichment Mode, target substance heat interpretive model to sample gas except aqueous mode, in sample gas,
And remove water pipe heat drying mode.
It further include the detecting instrument for detection gas, the outlet side company of the detecting instrument and the third pipeline layer
Logical, the control system is electrically connected with the detecting instrument, controls the detecting instrument work.
The first pipeline layer, the third pipeline layer are conductor, the water removal pipe heating device include respectively with institute
The two of the both ends electrical connection of the first pipeline layer are stated except water pipe electrical power contacts terminal, and respectively with remove the two of water pipe power electric connection
It is a remove water pipe heating power supply contactor, the second pipeline layer condense when, it is described except water pipe heating power supply contactor with it is corresponding
The water pipe electrical power contacts terminal that removes disconnects, described to remove water pipe heating power supply contactor when the first pipeline layer heats
It connects to form closed circuit with the corresponding water pipe electrical power contacts terminal that removes；
The enrichment parsing pipe heating device includes two enrichment solutions being electrically connected respectively with the both ends of the third pipeline layer
Pipe electrical power contacts terminal is analysed, and is contacted respectively with two enrichment analytic tube heating power supplies of enrichment analytic tube power electric connection
Device, when the 4th pipeline layer condensation is enriched with, the enrichment analytic tube heating power supply contactor is parsed with the corresponding enrichment
Pipe electrical power contacts terminal disconnects, when the third pipeline layer heating parses, the enrichment analytic tube heating power supply contactor
It connects to form closed circuit with the corresponding enrichment analytic tube electrical power contacts terminal.
It is described to include except water pipe heating power supply contactor
Except water pipe connecting pin, it is connect with water pipe power supply is removed, except described in two of water pipe heating power supply contactor described in two
Except the one of connection in water pipe connecting pin removes the anode of water pipe power supply, another connection removes the cathode of water pipe power supply；
Except water pipe electromagnetic relay, water pipe electric is removed on water pipe sliding bar including removing water pipe sliding bar and being wound in described remove
Magnetic coil, described when being powered except water pipe electromagnetic coil, generating makes the electromagnetic force moved upwards except water pipe sliding bar so that even
It connects and is connected to except water pipe connecting pin with the water pipe electrical power contacts terminal that removes described in water pipe sliding bar upper end in described remove；
Except water pipe bias piece, be connected to it is described except on water pipe sliding bar, it is described moved upwards except water pipe sliding bar when, institute
It states and removes water pipe bias piece generation biasing force, it is described except water pipe sliding bar is described inclined in the power-off except water pipe electromagnetic coil
It moves downward under the action of pressure and is removed so as to be connected to the water pipe connecting pin of removing except water pipe sliding bar upper end with described
The separation of water pipe power supply contact terminal；
And/or
The enrichment analytic tube heating power supply contactor includes
It is enriched with analytic tube connecting pin, is connect with enrichment analytic tube power supply, two enrichment analytic tube heating power supply contacts
The anode of the one of connection enrichment analytic tube power supply in the enrichment analytic tube connecting pin of two of device, another connection enrichment solution
Analyse the cathode of pipe power supply；
It is enriched with analytic tube electromagnetic relay, including is enriched with analytic tube sliding bar and is wound in the enrichment analytic tube sliding bar
On enrichment analytic tube electromagnetic coil, when the enrichment analytic tube electromagnetic coil is powered, generation makes enrichment analytic tube sliding
Electromagnetic force that bar moves upwards so that be connected to the enrichment analytic tube connecting pin of the enrichment analytic tube sliding bar upper end with
The enrichment analytic tube electrical power contacts terminal connection；
It is enriched with analytic tube bias piece, is connected on the enrichment analytic tube sliding bar, in the enrichment analytic tube sliding bar
When moving upwards, the enrichment analytic tube bias piece generates biasing force, described in enrichment analytic tube electromagnetic coil power-off
Enrichment analytic tube sliding bar is moved downward under the action of the biasing force so as to be connected on the enrichment analytic tube sliding bar
The enrichment analytic tube connecting pin at end is separated with the enrichment analytic tube electrical power contacts terminal.
The control system includes:
Sensor, including for monitor the temperature except water pipe except water pipe temperature sensor, and for monitoring
State the enrichment analytic tube temperature sensor of the temperature of enrichment analytic tube；
Central control unit exports PWM letter by pid algorithm to the data for removing water pipe temperature sensor described in monitoring
Number water pipe electromagnetic relay is removed to described, described except water pipe electromagnetic relay to control heating power by control closure duty ratio defeated
Out, it realizes to the accurate temperature controlling except water pipe；The central control unit detects the enrichment analytic tube temperature sensor
To data handled, give the enrichment analytic tube electromagnetic relay by PID algorithm output pwm signal, the enrichment solves
It analyses pipe electromagnetic relay and heating power output is controlled by control closure duty ratio, realize accurate temperature controlling；
Man-machine interface, with the central control unit communication connection.
Insulating layer and/or the third pipeline layer and institute are equipped between the first pipeline layer and the second pipeline layer
It states and is equipped with insulating layer between the 4th pipeline layer.
The first pipeline layer and/or the third pipeline layer are passivation stainless steel capillary or are arranged stainless steel tube outside
Quartz ampoule.
Adsorptivity coating is equipped in the first pipeline layer and/or in third pipeline layer.
The second pipeline layer and/or the 4th pipeline layer are copper pipe.
The first pipeline layer, the sealing that the both ends of the third pipeline layer are connected separately with for connecting sampling gas circuit connect
Head.
It includes refrigeration system and cold source distribution system that the cold source, which provides device,；
The refrigeration cold head of the refrigeration system is suitable for connecting with the 4th pipeline layer, provides cooling capacity for the 4th pipeline layer；It is described
Cold source distribution system is conductive structure, and one end is connect with the refrigeration system, and the other end is connect with a second pipeline layer, is
It is the cryogenic temperature that the 4th pipeline layer provides that the cryogenic temperature that the second pipeline layer provides, which is higher than the refrigeration cold head,；
Or the cold source distribution system has the first conductive structure, the second conductive structure, wherein first conductive structure
One end connect with the refrigeration cold head of the refrigeration system, the other end is connect with the second pipeline layer, the second thermally conductive knot
One end of structure is connect with the refrigeration cold head of the refrigeration system, and the other end is connect with the 4th pipeline layer, and described first is thermally conductive
Structure is that the cryogenic temperature that the second pipeline layer provides is provided higher than second conductive structure the 4th pipeline layer
Cryogenic temperature.
The refrigeration system includes thermoacoustic Cryo Refrigerator, the low temperature of the regenerator of the refrigeration cold head and the refrigeration machine
Part between the low-temperature end and temperature end of the regenerator of end connection, the conductive structure and the refrigeration machine connects.
The conductive structure includes heat conduction ring, and the heat conduction ring is socketed in outside the regenerator, and the heat conduction ring with
The low-temperature end spacing of the link position of the regenerator and the regenerator is arranged.
The conductive structure further includes heat-conductive bracket, and one end of the heat-conductive bracket is connect with the heat conduction ring, the other end
It is connect with secondary cold head, the pair cold head is suitable for connecting with the second pipeline layer.
The conductive structure includes thermal resistance mechanism, and one end of the thermal resistance mechanism is connect with the refrigeration cold head, the other end
It is connect with the second pipeline layer.
The refrigeration system includes mixed work medium for throttling ultra-low temperature refrigerating device, and the conductive structure includes and second pipe
The secondary cold head of road floor connection, and in the cold medium circulation line for being connected to the regenerator of the refrigeration machine with the secondary cold head.
The refrigeration cold head is connect by the first fixator with the 4th pipeline layer, and the conductive structure is solid by second
Determine device to be correspondingly connected with the second pipeline layer.
It further include adiabatic system, described except water pipe, the enrichment analytic tube are set in the adiabatic system, the insulation
System is described except water pipe, the enrichment analytic tube and external heat exchange for completely cutting off.
The adiabatic system includes vacuum airtight container, and the vacuum pump outside the vacuum airtight container is arranged in, and controls institute
The solenoid valve that vacuum pump vacuumizes is stated, Packed electric interfaces, pipe interface are reserved on the vacuum airtight container, it is described to remove
Water piping system, enrichment parsing pipe-line system are installed in the vacuum airtight container, and the control system passes through described
Vacuum pump work described in solenoid valve control.
The adiabatic system includes closed container, and the heat-insulating material being filled in the closed container, the water removal
Pipe, the enrichment analytic tube are installed in the closed container, and the closed container is equipped with inflating port, and is reserved with sealing
Electric interfaces, pipe interface.
Desiccant is equipped in the closed container.
Technical solutions of the utility model have the advantages that
1, in the present invention, except water pipe and enrichment analytic tube are multi-layer structure design, specially in stainless steel tube
On the one hand one layer of copper pipe of housing can be reinforced exchanging heat using the thermal conductive resin of copper, realize the rapid cooling of pipe, another party
Face can be realized the temperature equalization of whole section of pipeline, and using this design, the first fixator is not needed and whole section of the second pipeline layer,
Two fixators do not need to be bonded completely with whole section of the 4th pipeline layer, and only need to carry out part contact, can be realized and remove to whole section
Water pipe, the refrigeration for being enriched with analytic tube, especially when longer except water pipe, enrichment analytic tube, this design can subtract significantly
The volume of small intermediate heat exchange structure, on the one hand reduces the volume of whole equipment, on the other hand reduces system thermal capacitance, reduces
Loss of refrigeration capacity.
2, in the present invention, the design of cold source distribution system realizes a refrigeration system while providing two kinds of differences
The cold source of temperature meets the needs of water removal and enrichment different temperatures respectively.It thus is avoided that and is carried out respectively using more set refrigeration systems
Enrichment and water removal, greatly reduce system bulk and power consumption.
3, in the present invention, the heat-insulating material using vacuum insulation or for aerospace field is insulated, and
And be all made of closed container and closed to each, prevent the convection current except water piping system, enrichment parsing pipe-line system and air
Heat exchange, reduces the loss of refrigeration capacity of system, to realize the miniaturization of refrigeration system, reduces system bulk and power consumption, simultaneously
Condensation problem is prevented.
4, in the present invention, since heating power supply is needed using copper wires, and copper wires have well simultaneously
Thermal conductivity be easy to prolong conducting wire when carrying out pipeline refrigeration and generate loss of refrigeration capacity.Therefore the heating of the utility model unique design
Power contactor, in refrigeration, contactor is disconnected, and avoids loss of refrigeration capacity.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is that the ultralow temperature of the utility model condenses the schematic diagram of enrichment system；
Fig. 2 is the structural schematic diagram of the enrichment parsing pipe-line system of the utility model；
Fig. 3 is the structural schematic diagram of enrichment parsing pipe-line system shown in Fig. 2 when heated；
Fig. 4 is that third pipeline layer, the second pipeline layer, the insulating layer of enrichment parsing pipe-line system shown in Fig. 2 are formed by
It is enriched with the sectional view of analytic tube；
Fig. 5 is the utility model except the structural schematic diagram of water piping system when heated；
Fig. 6 is that the first pipeline layer, the second pipeline layer, insulating layer shown in fig. 5 except water piping system is formed by water removal
The sectional view of pipe；
Fig. 7 is a kind of structural schematic diagram of cold source distribution system provided by the utility model；
Fig. 8 is the structural schematic diagram of another cold source distribution system provided by the utility model.
Description of symbols:
1- refrigeration system；2- refrigeration cold head；3- cooling fan；The air duct 4-；5- adiabatic system；6- removes water pipe；7- enrichment pipe；
8- removes water pipe temperature sensor；9- is enriched with analytic tube temperature sensor；10- cold source distribution system；11- electric interfaces；12- water removal
Pipe heating power supply contactor；13- removes water pipe electromagnetic relay；14- removes water pipe power supply；15- seal nipple；16- is enriched with analytic tube
Power contactor；17- is enriched with analytic tube electromagnetic relay；18- is enriched with analytic tube power supply；19- solenoid valve；20- vacuum pump；21-
Central control unit；22- man-machine interface；
100- third pipeline layer；The 4th pipeline layer of 101-；102- insulating layer；103- is enriched with analytic tube electrical power contacts terminal；
105- is enriched with analytic tube electromagnetic coil；106- is enriched with analytic tube sliding bar；107- is enriched with analytic tube connecting pin；108- enrichment parsing
Pipe bias piece；
201- regenerator；204- heat conduction ring；205- heat-conductive bracket；206- pair cold head；The first fixator of 208-；209- second
Fixator；210- thermal resistance mechanism；
300- the first pipeline layer；301- the second pipeline layer；302- insulating layer；303- removes water pipe electrical power contacts terminal；305-
Except water pipe electromagnetic coil；306- removes water pipe sliding bar；307- removes water pipe connecting pin；308- removes water pipe bias piece.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
In addition, as long as technical characteristic involved in the utility model different embodiments disclosed below is each other
Not constituting conflict can be combined with each other.
Embodiment 1
As shown in figures 1 to 6, a kind of ultralow temperature of the utility model condenses enrichment system, comprising:
Except water piping system, including water pipe 6 is removed, and water removal pipe heating device, wherein except water pipe 6 includes the first pipeline layer
300, the second pipeline layer 301 in the outside of the first pipeline layer 300 is set, and the second pipeline layer 301 is used for cooling capacity
It is transferred on the first pipeline layer 300, freezes to the first pipeline layer 300, make by the first pipeline layer 300
Vapor in sample gas is condensate on the inner wall of the first pipeline layer 300, realizes sample gas water removal, described to remove water pipe
Heating device is used to make the vapor being condensate in the first pipeline layer 300 evaporate the first pipeline layer 300 heating, real
Now except water pipe 6 is dry；
Enrichment parsing pipe-line system, including enrichment analytic tube 7, and enrichment parsing pipe heating device, wherein enrichment parsing
Pipe 7 includes third pipeline layer 100, is set in the 4th pipeline layer 101 in the outside of the third pipeline layer 100, the third pipe
The inlet end of road floor 100 is connected to the outlet side of the first pipeline floor 300, and the 4th pipeline layer 101 is for passing cooling capacity
It is handed on the third pipeline layer 100, freezes to the third pipeline layer 100, make through adopting in the third pipeline layer 100
Sample gas in sample gas is condensate on the inner wall of the third pipeline layer 100, realizes the target substance enrichment in sample gas, institute
Enrichment parsing pipe heating device is stated to be used to make the mesh for being condensate in the third pipeline layer 100 to the third pipeline layer 100 heating
Mark substance heating parsing；
Cold source provides device, is separately connected with the second pipeline layer 301, the 4th pipeline layer 101, is described second
Pipeline layer 301, the 4th pipeline layer 101 provide institute's chilling requirement；
Control system provides device, the water removal pipe heating device, the enrichment analytic tube with the cold source respectively and heats
Device electrical connection provides device, the water removal pipe heating device, enrichment parsing pipe heating device by controlling the cold source
Work realizes that target substance condensation Enrichment Mode, target substance heat interpretive model to sample gas except aqueous mode, in sample gas,
And remove water pipe heat drying mode.
In the present invention, except water pipe 6 and enrichment analytic tube 7 are multi-layer structure design, the second pipeline layer 301 can be with
Cooling capacity is evenly transferred on the first pipeline layer 300, is freezed to the first pipeline layer 300, the 4th pipeline layer 101 can be by cooling capacity
It is evenly transferred on third pipeline layer 100, freezes to third pipeline layer 100, therefore, can not only realize the temperature of whole section of pipeline
Equilibrium, using this design, the first fixator does not need to be bonded completely with whole section of the second pipeline layer 301, the second fixator is not required to
It to be bonded completely with whole section of the 4th pipeline layer 101, and only need to carry out part contact, can be realized to whole section except water pipe 6, enrichment
The refrigeration of analytic tube 7, especially when longer except water pipe 6, enrichment analytic tube 7, this design can greatly reduce centre
The volume of heat exchange structure, on the one hand reduces the volume of whole equipment, on the other hand reduces system thermal capacitance, reduces cooling capacity damage
It loses.
As shown in figures 2-6, the first pipeline layer 300, the third pipeline layer 100 are conductor, described except water pipe adds
Thermal includes that two be electrically connected respectively with the both ends of the first pipeline layer 300 remove water pipe electrical power contacts terminal 303, Yi Jifen
Water pipe heating power supply contactor 12 is not removed with two except water pipe power electric connection, it is described when the second pipeline layer 301 condenses
Except water pipe heating power supply contactor 12 and corresponding described except water pipe electrical power contacts terminal 303 disconnects, first pipeline
It is described to be connected except water pipe heating power supply contactor 12 with the corresponding water pipe electrical power contacts terminal 303 that removes when layer 300 heats
Form closed circuit；
The enrichment parsing pipe heating device includes two enrichments being electrically connected respectively with the both ends of the third pipeline layer 100
Analytic tube electrical power contacts terminal 103, and the two enrichment analytic tubes heating electricity being electrically connected respectively with enrichment analytic tube power supply 18
Source contactor 16, when the 4th pipeline layer 101 condensation enrichment, the enrichment analytic tube heating power supply contactor 16 with it is corresponding
The enrichment analytic tube electrical power contacts terminal 103 disconnects, when the heating of third pipeline layer 100 parses, the enrichment solution
Analysis pipe heating power supply contactor 16 forms closed circuit with the corresponding connection of enrichment analytic tube electrical power contacts terminal 103.Institute
State except water pipe heating power supply contactor 12, be enriched with analytic tube heating power supply contactor 16 design make in condensation described in except water pipe
Heating power supply contactor 12 is disconnected with the corresponding electrical power contacts terminal, or enrichment analytic tube heating power supply contactor 16
It is disconnected with corresponding electrical power contacts terminal, so that cooling capacity be avoided to generate loss of refrigeration capacity along the conducting wire being controlled to a power supply.
Specifically, as seen in figs. 5-6, it is described except water pipe heating power supply contactor 12 includes
Except water pipe connecting pin 307 removes the two of water pipe heating power supply contactor 12 with except 6 power supply of water pipe is connect described in two
A anode that water pipe power supply 14 is removed except the one of connection in water pipe connecting pin 307, another connection is except water pipe power supply 14
Cathode；
Except water pipe electromagnetic relay 13, including removing water pipe sliding bar 306 and being wound in described except on water pipe sliding bar 306
Described when being powered except water pipe electromagnetic coil 305 except water pipe electromagnetic coil 305, generation makes described except water pipe sliding bar 306 is transported upwards
Dynamic electromagnetic force is so as to be connected to described except the described of 306 upper end of water pipe sliding bar removes water pipe with described except water pipe connecting pin 307
Electrical power contacts terminal 303 is connected to；
Except water pipe bias piece 308, be connected to it is described except on water pipe sliding bar 306, described except water pipe sliding bar 306 is upward
It is described except water pipe bias piece 308 generates biasing force when movement, it is described to remove water pipe in the power-off except water pipe electromagnetic coil 305
Sliding bar 306 is moved downward under the action of the biasing force so as to be connected to described except described in 306 upper end of water pipe sliding bar
Except water pipe connecting pin 307 is separated with the water pipe electrical power contacts terminal 303 that removes.
As in Figure 2-4, the enrichment analytic tube heating power supply contactor 16 includes
It is enriched with analytic tube connecting pin 107, is connect with enrichment analytic tube power supply 18, two enrichment analytic tube heating power supplies
The anode of the one of connection enrichment analytic tube power supply 18 in the enrichment analytic tube connecting pin 107 of two of contactor 16, it is another
The cathode of a connection enrichment analytic tube power supply 18；
It is enriched with analytic tube electromagnetic relay 17, including is enriched with analytic tube sliding bar 106 and is wound in the enrichment analytic tube
Enrichment analytic tube electromagnetic coil 105 on sliding bar 106, when the enrichment analytic tube electromagnetic coil 105 is powered, generation makes described
The electromagnetic force that enrichment analytic tube sliding bar 106 moves upwards is so as to be connected to the institute of enrichment 106 upper end of analytic tube sliding bar
Enrichment analytic tube connecting pin 107 is stated to be connected to 18 contact terminal 103 of enrichment analytic tube power supply；
It is enriched with analytic tube bias piece 108, is connected on the enrichment analytic tube sliding bar 106, in the enrichment analytic tube
When sliding bar 106 moves upwards, the enrichment analytic tube bias piece 108 generates biasing force, in the enrichment analytic tube electromagnetic wire
When 105 power-off of circle, the enrichment analytic tube sliding bar 106 is moved downward under the action of the biasing force so as to be connected to institute
The enrichment analytic tube connecting pin 107 for stating enrichment 106 upper end of analytic tube sliding bar is contacted with the enrichment analytic tube power supply 18
Terminal 103 separates.
Insulating layer 302 is equipped between first pipeline layer 300 and the second pipeline layer 301 as described in shown in Fig. 4,6, it is described
Insulating layer 102 is equipped between third pipeline layer 100 and the 4th pipeline layer 101.The setting of insulating layer 302 can prevent power supply from existing
Heated current is conducted to other component when carrying out electrified regulation to the first pipeline layer 300, is led to short circuit, is in addition insulated
Layer 302 has certain heat-blocking action, and the heat for reducing by the first pipeline layer 300 is conducted to the second pipeline layer 301, can make the first pipe
300 temperature energy rapid increase of road floor.The setting of insulating layer 102 can prevent power supply to be powered to the third pipeline layer 100
Heated current is conducted to other component when heating, leads to short circuit, and in addition insulating layer 102 has certain heat-blocking action, is subtracted
The heat of few third pipeline layer 100 is conducted to the 4th pipeline layer 101, can enable 100 temperature rapid increase of third pipeline layer.
Particularly, the first pipeline layer 300, the third pipeline layer 100 are passivation stainless steel capillary or are arranged outside
The quartz ampoule of stainless steel tube can be very good to avoid inside extraneous impurity inflow the first pipeline layer 300, third pipeline layer
Final measurement result is had an impact inside 100, to improve the accuracy of measurement result.
Further, the first pipeline layer 300, be equipped with adsorptivity coating in third pipeline layer 100.Adsorptivity coating
Setting the first pipeline layer 300, the suction-operated of third pipeline 100 pairs of gas of layer can be made more preferable.
It is preferred that the second pipeline layer 301, the 4th pipeline layer 101 are copper pipe, copper pipe thermal conductivity is high, can quickly
The even cooling capacity by refrigeration system 1 passes to the second pipeline layer 301, the 4th pipeline layer 101 refrigeration rapidly, guarantees whole section of pipeline
Temperature equalization, and do not need whole section of pipeline and connect with refrigeration system 1, when pipeline is long, this design contracting
The small volume of whole equipment, reduces system thermal capacitance, reduces loss of refrigeration capacity.
The first pipeline layer 300, the third pipeline layer 100 both ends be connected separately with for connecting sampling gas circuit
Seal nipple 15.The convenient connection with extraneous sampling gas circuit of the setting of seal nipple 15.
Further, the ultralow temperature condensation enrichment system of the utility model further includes the detecting instrument for detection gas,
The detecting instrument is connected to the outlet side of the third pipeline layer 100, and the control system is electrically connected with the detecting instrument,
The detecting instrument work is controlled, in this way, sample gas removes water, the enrichment of target substance, target substance parse, except water pipe removes in sample gas
Water, the detection of sample gas and etc. can be controlled by control system, using more convenient.
Embodiment 2
Since enrichment analytic tube 7 is different with the cryogenic temperature except water pipe 6, enrichment analytic tube 7 generally requires -150 DEG C or so,
And except 6 temperature of water pipe need to be at -50 DEG C or so, it is therefore desirable to obtain the cold source of two kinds of different temperatures simultaneously from refrigeration system 1.In order to
It is further reduced space shared by ultralow temperature condensation enrichment system and reduces energy consumption, the cold source of the utility model provides
Device uses special structure, and lower mask body introduces cold source and provides the structure of device:
As shown in FIG. 7 and 8, it includes refrigeration system 1 and cold source distribution system that the cold source of the utility model, which provides device,
10；
The refrigeration cold head 2 of the refrigeration system 1 is suitable for connecting with the 4th pipeline layer 101, provides for the 4th pipeline layer 101 cold
Amount；The cold source distribution system 10 is conductive structure, and one end is connect with the refrigeration system 1, the other end and one second pipe
Road floor 301 connects, and being higher than the refrigeration cold head 2 for the cryogenic temperature that the second pipeline layer 301 provides is the 4th pipeline
The cryogenic temperature that layer 101 provides.Such structure may be implemented a refrigeration system while provide the cold source of two kinds of different temperatures,
Meet the needs of water removal and enrichment different temperatures respectively.It thus is avoided that and is enriched with and is removed water respectively using more set refrigeration systems,
Greatly reduce system bulk and power consumption.
In the present embodiment 2, the refrigeration system 1 includes thermoacoustic Cryo Refrigerator, the refrigeration cold head 2 and the refrigeration
The low-temperature end connection of the regenerator 201 of machine, the regenerator 201 of the conductive structure and the refrigeration machine low-temperature end and temperature end
Between part connection.
The conductive structure includes heat conduction ring 204, and the heat conduction ring 204 is socketed in outside the regenerator 201, and institute
The low-temperature end spacing of the link position and the regenerator 201 of stating heat conduction ring 204 and the regenerator 201 is arranged.
When in use, the refrigeration cold head 202 of refrigeration machine is that the 4th pipeline layer 101 provides cooling capacity, due to heat conduction ring 204
The low-temperature end spacing of the position of connection and the regenerator 201 is arranged, and the heat conduction ring 204 and heat-conductive bracket 205 are to the pair
The temperature for the cooling capacity that cold head 206 is transmitted is higher than the temperature of cooling capacity provided by the refrigeration cold head 202, the pair cold head 206
Cooling capacity is provided to the second pipeline layer 301.The 4th pipeline layer 101 and the second pipeline can be met by a refrigeration system
The refrigeration requirement of layer 301, to reduce the volume of whole system, power consumption is lower.
In interchangeable embodiment, the thermoacoustic Cryo Refrigerator can be replaced pulse tube refrigerating machine, Stirling system
Cold or GM refrigeration machine.The refrigeration cold head 2 is connect by the first fixator 208 with the 4th pipeline layer 101, described to lead
Heat structure is correspondingly connected with by the second fixator 209 with the second pipeline layer 301.
Embodiment 3
3 difference from Example 2 of the present embodiment is: the conductive structure further includes heat-conductive bracket 205, described to lead
One end of hot bracket 205 is connect with the heat conduction ring 204, and the other end connect with secondary cold head 206, the pair cold head 206 suitable for
The second pipeline layer 301 connects.
The conductive structure includes thermal resistance mechanism 210, and one end of the thermal resistance mechanism 210 is connect with the refrigeration cold head 2,
The other end is connect with the second pipeline layer 301.
Since the thermal resistance mechanism 210 has thermal resistance, the thermal resistance mechanism 210 is to the second pipeline layer 301
The temperature of the cooling capacity of transmitting is higher than the refrigeration temperature of the cold head 202 to cooling capacity provided by the 4th pipeline layer 101.
Embodiment 4
4 difference from Example 2 of the present embodiment is:
The refrigeration system 1 includes mixed work medium for throttling ultra-low temperature refrigerating device, and the conductive structure includes and described second
The secondary cold head 206 that pipeline layer 301 connects, and the regenerator 201 of the refrigeration machine is being connected to the pair cold head 206
Cold medium circulation line.
In interchangeable embodiment, the mixed work medium for throttling ultra-low temperature refrigerating device can be replaced J-T refrigeration machine.
Embodiment 5
Certainly, as interchangeable embodiment, as shown in Figure 1, the structure of cold source distribution system 10 is also possible that institute
Cold source distribution system 10 is stated with the first conductive structure, the second conductive structure, wherein one end of first conductive structure and institute
The refrigeration cold head 2 for stating refrigeration system 1 connects, and the other end is connect with the second pipeline layer 301, and the one of second conductive structure
End is connect with the refrigeration cold head 2 of the refrigeration system 1, and the other end is connect with the 4th pipeline layer 101, and described first is thermally conductive
Structure is that be higher than second conductive structure be the 4th pipeline layer 101 to the cryogenic temperature that provides of the second pipeline layer 301
The cryogenic temperature of offer.
Embodiment 6
Lower mask body introduces the structure of control system, as shown in Figure 1, in the present embodiment, the preferably described control system
System includes:
Sensor, including for monitor the temperature except water pipe 6 except water pipe temperature sensor 8, and for monitoring
The enrichment analytic tube temperature sensor 9 of the temperature of the enrichment analytic tube；
Central control unit 21 exports the data that water pipe temperature sensor 8 is removed described in monitoring by PID algorithm
Pwm signal removes water pipe electromagnetic relay 13 to described, and the water pipe electromagnetic relay 13 that removes passes through control closure duty ratio control
Heating power output, is realized to the accurate temperature controlling except water pipe 6；The central control unit 21 parses tube temperature to the enrichment
The data that degree sensor detects are handled, and give the enrichment analytic tube electromagnetic relay by pid algorithm output pwm signal
17, the enrichment analytic tube electromagnetic relay 17 controls heating power output by control closure duty ratio, realizes accurate temperature controlling；
Man-machine interface 22, with 21 communication connection of central control unit.
Except the constant pressure source that the heating power supply of water pipe and enrichment pipe is low-voltage and high-current, it is loaded directly into stainless steel tube two
End, is powered to it, converts electrical energy into thermal energy using the resistance of stainless steel tube itself, make its heating.By controlling electrical power contacts
Device and enrichment pipe and except being connected and disconnected from for electrical power contacts terminal at water pipe both ends controls the on-off of heating power supply, need to be implemented
When heating, power contactor and terminal connection, heater circuit closure, when not needing heating, power contactor and terminal are disconnected, and are added
Heater circuit open circuit, while bring heat transfer is avoided contact with, generate loss of refrigeration capacity.Central control unit monitored pipeline temperature number
According to, and given by pid algorithm output pwm signal except water pipe electromagnetic relay 13 or enrichment analytic tube electromagnetic relay 17, water removal
Pipe electromagnetic relay 13 or enrichment analytic tube electromagnetic relay 17 are by control closure duty ratio control heating power output, in turn
Realize accurate temperature controlling.Man-machine interface is touch screen or control switch, and central control unit is PLC or single-chip microcontroller, controls software package
Include the overall operation logic and temperature control algorithm of system.
Embodiment 7
In order to reduce heat loss, the ultralow temperature condensation enrichment system of the utility model further includes adiabatic system 5, lower mask
Body introduces the structure of adiabatic system:
As shown in Figure 1, the utility model ultralow temperature condensation enrichment system further include adiabatic system 5, it is described except water pipe 6,
The enrichment analytic tube 7 is set in the adiabatic system 5, and the adiabatic system 5 is described except water pipe 6, the richness for completely cutting off
Collect analytic tube 7 and external heat exchange.The setting of adiabatic system 5 can be carried out to except water piping system, enrichment parsing pipe-line system
Insulated heat obstructs itself and extraneous heat exchange, reduces heat loss.
There are many structures of adiabatic system, and in the present embodiment, the preferably described adiabatic system 5 includes vacuum airtight container,
Vacuum pump 20 outside the vacuum airtight container is set, the solenoid valve 19 that the vacuum pump 20 vacuumizes, the vacuum are controlled
Packed electric interfaces 11, pipe interface are reserved on closed container, it is described except water piping system, the enrichment parse pipeline system
System is installed in the vacuum airtight container, and the control system controls the vacuum pump 20 by the solenoid valve 19 and works.
Vacuum airtight container is tightly connected by vacuum flange and refrigeration cold head 2, except water piping system, enrichment parsing pipeline pass through pipeline
Interface is pierced by from vacuum tank, and the wiring of heating power supply, temperature sensor, contactor etc. passes through electric interfaces from vacuum tank
In be pierced by, vacuum pump 20 keeps the vacuum state in container, solenoid valve 19 is for controlling for extracting air out from vacuum tank
System vacuumizes the on-off of gas circuit.
Embodiment 8
As the interchangeable embodiment of embodiment 7, the structure of the adiabatic system of the present embodiment 8 can be with are as follows: described
Adiabatic system 5 includes closed container, and the heat-insulating material being filled in the closed container, described to remove water pipe 6, the enrichment
Analytic tube 7 is installed in the closed container, and the closed container is equipped with inflating port, and reserves Packed electric interfaces
11, pipe interface.Desiccant is equipped in the further closed container.The heat-insulating material use minimum it is preferable to use thermal coefficient
It, in this way can be to except water piping system, enrichment parsing pipe-line system and cold source distribution system in the heat-insulating material of aerospace field
System carries out good package and is insulated.Inflating port makes to keep centainly just in container for drying nitrogen to be perfused into container
Pressure, prevents air from entering, the vapor in air is caused to condense in container.
In addition, in the embodiment above, the ultralow temperature condensation enrichment system of the utility model further include to refrigeration system 1 into
The radiator structure of row heat dissipation, as shown in Figure 1, the radiator structure includes cooling fan 3, and for connecting cooling fan 3 and system
The hot end of cooling system 1 or the air duct 4 of condenser, the setting of radiator structure may insure hot end or the condenser of air and refrigeration machine
Carry out abundant heat convection.
The course of work of the utility model:
The ultralow temperature condensation enrichment system of the utility model can realize according to user instructions following functions:
1, sample gas removes water
After receiving instruction, refrigeration system 1 is started to work, and refrigeration 2 temperature of cold head gradually decreases, except water pipe 6 passes through cold source point
10 heat release of match system, temperature gradually decrease, simultaneously because the presence of cold source distribution system 10, except 6 temperature of water pipe is cold higher than freezing
First 2 temperature, then heated and exported by PID control, stablize it at -50 DEG C or so, avoids the mesh of higher in sample gas
Mark substance, that is, VOCs condenses in except water pipe, influences to detect result.Sample gas is sent into and removes water pipe 6, vapor therein exists
It is condensed on tube wall, realizes dry water removal.
2, condensation enrichment
After receiving instruction, refrigeration system 1 is started to work, and refrigeration 2 temperature of cold head gradually decreases, and is enriched with analytic tube 7 due to straight
It connects and 2 contact heat-exchanging of cold head that freezes, temperature can be reduced to -150 DEG C to export hereinafter, heating again by PID control, make its temperature
Stablize at -150 DEG C or so.Sample gas after water removal is sent into enrichment analytic tube 7, target substance therein, that is, gaseous state VOCs exists
It is condensed on tube wall, realizes enrichment concentration.
3, heating parsing
After receiving instruction, enrichment analytic tube power contactor 16 is powered on, and is closed with enrichment pipe electrical power contacts terminal 103, electricity
Source is connected, and electric current makes it generate heat by the stainless steel tube in enrichment analytic tube 7, since voltage is sufficiently high, heating power foot
Enough big, enrichment 7 temperature of analytic tube can rise rapidly, and after rising to specified resolution temperature from -150 DEG C in 10 seconds, pass through
Pid algorithm carries out heating duty than control, stablizes its temperature in specified resolution temperature.Due to being enriched with the rapid liter of analytic tube 7
Temperature, the VOCs condensed on inner wall gasify rapidly, are sent into dry inert carrier gas into enrichment analytic tube 7 at this time, will be gaseous
VOCs takes out of, and is delivered in detecting instrument.
3, water pipe heat drying is removed
After receiving instruction, except water pipe heating power supply contactor 12 powers on, it is closed with water pipe electrical power contacts terminal 303 is removed, electricity
Source is connected, and by making it generate heat except the stainless steel tube in water pipe 6, temperature rises very rapidly up to assigned temperature, rises to electric current
After specified resolution temperature, heating duty is carried out than control by pid algorithm, stablizes its temperature in assigned temperature.Except water pipe 6
The ice crystal adhered on inner wall gasifies rapidly, at this time to except dry inert carrier gas is passed through in water pipe 6, vapor is taken out of, is realized
Except water pipe is dry.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes among the protection scope created still in the utility model.
Claims (21)
1. a kind of ultralow temperature condenses enrichment system characterized by comprising
Except water piping system, including water pipe is removed, and water removal pipe heating device, wherein except water pipe includes the first pipeline layer, setting
The second pipeline layer in the outside of the first pipeline layer, the second pipeline layer are used to cooling capacity being transferred to first pipeline
On layer, freezes to the first pipeline layer, make to be condensate in institute by the vapor in the sample gas in the first pipeline layer
On the inner wall for stating the first pipeline layer, sample gas water removal is realized, the water removal pipe heating device is used for the first pipeline layer
Heating evaporates the vapor being condensate in the first pipeline layer, realizes except water pipe is dry；
Enrichment parsing pipe-line system, including enrichment analytic tube, and enrichment parsing pipe heating device, wherein enrichment analytic tube includes
Third pipeline layer is set in the 4th pipeline layer in the outside of the third pipeline layer, the inlet end of the third pipeline layer and institute
The outlet side connection of the first pipeline layer is stated, the 4th pipeline layer is used to cooling capacity being transferred to the third pipeline layer, to institute
Third pipeline layer refrigeration is stated, makes to be condensate in the third pipe by the target substance in the sample gas in the third pipeline layer
On the inner wall of road floor, the enrichment of target substance is realized, the enrichment parsing pipe heating device is for adding the third pipeline layer
Heat makes the target substance for being condensate in the third pipeline layer carry out heating parsing；
Cold source provides device, is separately connected with the second pipeline layer, the 4th pipeline layer, for the second pipeline layer, institute
It states the 4th pipeline layer and institute's chilling requirement is provided；
Control system provides device, the water removal pipe heating device, enrichment parsing pipe heating device with the cold source respectively
Electrical connection provides device, the water removal pipe heating device, enrichment parsing pipe heating device work by controlling the cold source
Realize that target substance condensation Enrichment Mode, target substance heat interpretive model to sample gas except aqueous mode, in sample gas, and
Except water pipe heat drying mode.
2. a kind of ultralow temperature according to claim 1 condenses enrichment system, which is characterized in that further include for detection gas
Detecting instrument, the detecting instrument is connected to the outlet side of the third pipeline layer, the control system and the detector
Device electrical connection controls the detecting instrument work.
3. a kind of ultralow temperature according to claim 1 condenses enrichment system, which is characterized in that the first pipeline layer, institute
Stating third pipeline layer is conductor, and the water removal pipe heating device includes being electrically connected respectively with the both ends of the first pipeline layer
Two remove water pipe electrical power contacts terminal, and remove water pipe heating power supply contactor, institute with two except water pipe power electric connection respectively
It is described to be disconnected except water pipe heating power supply contactor with the corresponding water pipe electrical power contacts terminal that removes when stating the condensation of the second pipeline layer
Connection, when the first pipeline layer heats, it is described except water pipe heating power supply contactor with it is corresponding described except water pipe electrical power contacts
Terminal is connected to form closed circuit；
The enrichment parsing pipe heating device includes two enrichment analytic tubes being electrically connected respectively with the both ends of the third pipeline layer
Electrical power contacts terminal, and two enrichment analytic tube heating power supply contactors with enrichment analytic tube power electric connection respectively, institute
When stating the condensation enrichment of the 4th pipeline layer, the enrichment analytic tube heating power supply contactor and the corresponding enrichment analytic tube power supply
Contact terminal disconnects, when third pipeline layer heating parsing, the enrichment analytic tube heating power supply contactor with it is corresponding
The enrichment analytic tube electrical power contacts terminal connect to form closed circuit.
4. a kind of ultralow temperature according to claim 3 condenses enrichment system, which is characterized in that described to remove water pipe heating power supply
Contactor includes
Except two water removals of water pipe heating power supply contactor are removed with except water pipe power supply is connect in water pipe connecting pin described in two
The one of connection in pipe connecting pin removes the anode of water pipe power supply, another connection removes the cathode of water pipe power supply；
Except water pipe electromagnetic relay, water pipe electromagnetic wire is removed on water pipe sliding bar including removing water pipe sliding bar and being wound in described remove
Circle, described when being powered except water pipe electromagnetic coil, generating makes the electromagnetic force moved upwards except water pipe sliding bar so as to be connected to
The water pipe connecting pin of removing for removing water pipe sliding bar upper end is connected to the water pipe electrical power contacts terminal that removes；
Except water pipe bias piece, be connected to it is described except on water pipe sliding bar, it is described moved upwards except water pipe sliding bar when, it is described to remove
Water pipe bias piece generates biasing force, described except water pipe sliding bar is in the biasing force in the power-off except water pipe electromagnetic coil
Under the action of move downward so as to be connected to described described except water pipe connecting pin and described except water pipe except water pipe sliding bar upper end
The separation of electrical power contacts terminal；
And/or
The enrichment analytic tube heating power supply contactor includes
It is enriched with analytic tube connecting pin, connect with enrichment analytic tube power supply, two described to be enriched with analytic tube heating power supply contactor
The anode of two one of connection enrichment analytic tube power supplys in enrichment analytic tube connecting pin, another connection enrichment analytic tube
The cathode of power supply；
It is enriched with analytic tube electromagnetic relay, including enrichment analytic tube sliding bar and is wound on the enrichment analytic tube sliding bar
Be enriched with analytic tube electromagnetic coil, the enrichment analytic tube electromagnetic coil be powered when, generate make the enrichment analytic tube sliding bar to
The electromagnetic force of upper movement so that be connected to the enrichment analytic tube connecting pin of the enrichment analytic tube sliding bar upper end with it is described
It is enriched with the connection of analytic tube electrical power contacts terminal；
It is enriched with analytic tube bias piece, is connected on the enrichment analytic tube sliding bar, it is upward in the enrichment analytic tube sliding bar
When movement, the enrichment analytic tube bias piece generates biasing force, in enrichment analytic tube electromagnetic coil power-off, the enrichment
Analytic tube sliding bar is moved downward under the action of the biasing force so as to be connected to the enrichment analytic tube sliding bar upper end
The enrichment analytic tube connecting pin is separated with the enrichment analytic tube electrical power contacts terminal.
5. a kind of ultralow temperature according to claim 4 condenses enrichment system, which is characterized in that the control system includes:
Sensor, including for monitor the temperature except water pipe except water pipe temperature sensor, and for monitoring the richness
Collect the enrichment analytic tube temperature sensor of the temperature of analytic tube；
Central control unit gives the data that water pipe temperature sensor is removed described in monitoring by pid algorithm output pwm signal
It is described that except water pipe electromagnetic relay, the water pipe electromagnetic relay that removes is exported by control closure duty ratio control heating power,
It realizes to the accurate temperature controlling except water pipe；The central control unit detects the enrichment analytic tube temperature sensor
Data are handled, and give the enrichment analytic tube electromagnetic relay, the enrichment analytic tube by pid algorithm output pwm signal
Electromagnetic relay controls heating power output by control closure duty ratio, realizes accurate temperature controlling；
Man-machine interface, with the central control unit communication connection.
6. a kind of ultralow temperature according to claim 1 condenses enrichment system, which is characterized in that the first pipeline layer and institute
It states to be equipped between insulating layer and/or the third pipeline layer and the 4th pipeline layer between the second pipeline layer and is equipped with insulating layer.
7. a kind of ultralow temperature according to claim 6 condenses enrichment system, which is characterized in that the first pipeline layer and/
Or the third pipeline layer is the quartz ampoule for being passivated stainless steel capillary or being arranged stainless steel tube outside.
8. a kind of ultralow temperature according to claim 7 condenses enrichment system, which is characterized in that the first pipeline layer and/
Or adsorptivity coating is equipped in third pipeline layer.
9. a kind of ultralow temperature according to claim 6 condenses enrichment system, which is characterized in that the second pipeline layer and/
Or the 4th pipeline layer is copper pipe.
10. a kind of ultralow temperature according to claim 1 to 9 condenses enrichment system, which is characterized in that described the
One pipeline layer, the third pipeline layer both ends be connected separately with for connect sampling gas circuit seal nipple.
11. ultralow temperature according to claim 1 to 8 condenses enrichment system, which is characterized in that
It includes refrigeration system and cold source distribution system that the cold source, which provides device,；
The refrigeration cold head of the refrigeration system is suitable for connecting with the 4th pipeline layer, provides cooling capacity for the 4th pipeline layer；The cold source
Distribution system is conductive structure, and one end is connect with the refrigeration system, and it is described that the other end is connect with a second pipeline layer
It is the cryogenic temperature that the 4th pipeline layer provides that the cryogenic temperature that second pipeline layer provides, which is higher than the refrigeration cold head,；
Or the cold source distribution system has the first conductive structure, the second conductive structure, wherein the one of first conductive structure
End is connect with the refrigeration cold head of the refrigeration system, and the other end is connect with the second pipeline layer, second conductive structure
One end is connect with the refrigeration cold head of the refrigeration system, and the other end is connect with the 4th pipeline layer, first conductive structure
Being higher than second conductive structure for the cryogenic temperature that the second pipeline layer provides is the refrigeration that the 4th pipeline layer provides
Temperature.
12. a kind of ultralow temperature according to claim 11 condenses enrichment system, which is characterized in that the refrigeration system includes
Thermoacoustic Cryo Refrigerator, the refrigeration cold head connect with the low-temperature end of the regenerator of the refrigeration machine, the conductive structure and institute
State the part connection between the low-temperature end and temperature end of the regenerator of refrigeration machine.
13. a kind of ultralow temperature according to claim 12 condenses enrichment system, which is characterized in that the conductive structure includes
Heat conduction ring, the heat conduction ring are socketed in outside the regenerator, and the link position and institute of the heat conduction ring and the regenerator
State the low-temperature end spacing setting of regenerator.
14. a kind of ultralow temperature according to claim 13 condenses enrichment system, which is characterized in that the conductive structure also wraps
Heat-conductive bracket is included, one end of the heat-conductive bracket is connect with the heat conduction ring, and the other end is connect with secondary cold head, and the pair cold head is suitable
It is connect in the second pipeline layer.
15. a kind of ultralow temperature according to claim 12 condenses enrichment system, which is characterized in that the conductive structure includes
Thermal resistance mechanism, one end of the thermal resistance mechanism are connect with the refrigeration cold head, and the other end is connect with the second pipeline layer.
16. a kind of ultralow temperature according to claim 11 condenses enrichment system, which is characterized in that the refrigeration system includes
Mixed work medium for throttling ultra-low temperature refrigerating device, the conductive structure include the secondary cold head connecting with the second pipeline layer, Yi Ji
The cold medium circulation line that the regenerator of the refrigeration machine is connected to the secondary cold head.
17. a kind of ultralow temperature according to claim 11 condenses enrichment system, which is characterized in that the refrigeration cold head passes through
First fixator is connect with the 4th pipeline layer, and the conductive structure is corresponding with the second pipeline layer by the second fixator
Connection.
18. ultralow temperature according to claim 1 to 9 condenses enrichment system, which is characterized in that further include insulation
System, described except water pipe, the enrichment analytic tube are set in the adiabatic system, the adiabatic system is for completely cutting off described remove
Water pipe, the enrichment analytic tube and external heat exchange.
19. a kind of ultralow temperature according to claim 18 condenses enrichment system, which is characterized in that the adiabatic system includes
The vacuum pump outside the vacuum airtight container is arranged in vacuum airtight container, controls the solenoid valve that the vacuum pump vacuumizes, institute
It states and reserves Packed electric interfaces, pipe interface on vacuum airtight container, it is described to remove water piping system, the enrichment analytic tube
Road system is installed in the vacuum airtight container, and the control system passes through vacuum pump work described in the solenoid valve control.
20. a kind of ultralow temperature according to claim 18 condenses enrichment system, which is characterized in that the adiabatic system includes
Closed container, and the heat-insulating material being filled in the closed container, it is described except water pipe, the enrichment analytic tube are installed on institute
It states in closed container, the closed container is equipped with inflating port, and reserves Packed electric interfaces, pipe interface.
21. a kind of ultralow temperature according to claim 20 condenses enrichment system, which is characterized in that set in the closed container
There is desiccant.
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| CN201820842984.1U CN208504804U (en) | 2018-05-31 | 2018-05-31 | A kind of ultralow temperature condensation enrichment system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108592461A (en) * | 2018-05-31 | 2018-09-28 | 山前（珠海）科技有限公司 | A kind of ultralow temperature condensation enrichment system |
| CN109806612A (en) * | 2019-03-18 | 2019-05-28 | 杭州阿卡米低温科技有限责任公司 | A kind of mechanical cryotrap based on moving component |
| CN111443140A (en) * | 2020-04-10 | 2020-07-24 | 苏州天蓝分析仪器有限公司 | Enrichment detection analysis device for online measurement of ultralow-concentration VOC |
| CN116124567A (en) * | 2023-02-03 | 2023-05-16 | 北京鹏宇昌亚环保科技有限公司 | Volatile organic compound enrichment pretreatment device |
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2018
- 2018-05-31 CN CN201820842984.1U patent/CN208504804U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108592461A (en) * | 2018-05-31 | 2018-09-28 | 山前（珠海）科技有限公司 | A kind of ultralow temperature condensation enrichment system |
| CN109806612A (en) * | 2019-03-18 | 2019-05-28 | 杭州阿卡米低温科技有限责任公司 | A kind of mechanical cryotrap based on moving component |
| CN109806612B (en) * | 2019-03-18 | 2021-05-25 | 杭州阿卡米低温科技有限责任公司 | Mechanical type cryotrap based on moving part |
| CN111443140A (en) * | 2020-04-10 | 2020-07-24 | 苏州天蓝分析仪器有限公司 | Enrichment detection analysis device for online measurement of ultralow-concentration VOC |
| CN116124567A (en) * | 2023-02-03 | 2023-05-16 | 北京鹏宇昌亚环保科技有限公司 | Volatile organic compound enrichment pretreatment device |
| CN116124567B (en) * | 2023-02-03 | 2023-06-16 | 北京鹏宇昌亚环保科技有限公司 | Volatile organic compound enrichment pretreatment device |
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