CN219434752U - Low-temperature rapid control device for purging trap - Google Patents
Low-temperature rapid control device for purging trap Download PDFInfo
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- CN219434752U CN219434752U CN202320576805.5U CN202320576805U CN219434752U CN 219434752 U CN219434752 U CN 219434752U CN 202320576805 U CN202320576805 U CN 202320576805U CN 219434752 U CN219434752 U CN 219434752U
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- trap
- cooling
- refrigerating
- temperature
- control device
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- 238000010926 purge Methods 0.000 title claims abstract description 17
- 238000001816 cooling Methods 0.000 claims abstract description 98
- 238000004321 preservation Methods 0.000 claims abstract description 40
- 238000009413 insulation Methods 0.000 claims description 15
- 238000005057 refrigeration Methods 0.000 claims description 9
- 239000000919 ceramic Substances 0.000 claims description 7
- 230000017525 heat dissipation Effects 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000010030 laminating Methods 0.000 claims 1
- 239000012855 volatile organic compound Substances 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- 239000003570 air Substances 0.000 description 25
- 239000000126 substance Substances 0.000 description 5
- 238000001514 detection method Methods 0.000 description 3
- 239000012080 ambient air Substances 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of volatile organic compound pretreatment, in particular to a low-temperature rapid control device for a purging trap, which is characterized in that a refrigerating device comprising an electronic refrigerating unit and an air cooling unit is arranged, a plurality of cooling fins which are parallel and perpendicular to the refrigerating fins are arranged through the arranged refrigerating device, grooves are arranged among the cooling fins, the trapping trap unit is arranged in the grooves, the air cooling unit is arranged in a space arranged in the middle of the longitudinal direction of the cooling fins, and a heat preservation box with an outer sleeve is arranged to form a sealing environment, so that air flow generated by a fan can only circularly flow through the trapping trap along the grooves among the cooling fins, thereby realizing rapid cooling; by arranging the temperature sensor and the control device, the output power of the refrigerating sheet is adjusted in real time according to the detected temperature so as to keep a constant temperature state for the absorption sample of the trap, and the technical defects of difficult cooling and low working efficiency in the prior art are overcome.
Description
Technical Field
The utility model relates to the technical field of volatile organic compound pretreatment, in particular to a low-temperature rapid control device for a purging trap.
Background
When detecting volatile organic compounds with low content, the trap needs to be cooled to a set temperature, the trap adsorbs the substances at a low temperature section, after enrichment for a set time, the trap rapidly heats up to the set temperature, and the trap concentrates and separates out the enriched substances to be detected at a high temperature section and sends the substances to a rear end detection module for detection. At present, the air cooling technology uses a fan to directly blow room temperature air towards the trap, the final temperature of the trap is affected by the temperature of ambient air, when the trap temperature is close to the ambient air temperature, the cooling speed can be rapidly reduced, the refrigerating effect is poor, the trap temperature cannot be cooled to below room temperature, and the trap cannot work in a low-temperature area.
The electronic refrigeration is used for passive conduction cooling, because the air in the refrigeration cavity does not circulate, the heat radiation conduction and the passive convection of the air can be only used, and because the air is a poor conductor of heat, the refrigeration speed is lower, the refrigeration waiting time is longer, and the working efficiency is seriously affected.
Disclosure of Invention
The utility model discloses a low-temperature rapid control device for a purging trap, and aims to solve the technical problems in the prior art.
The utility model adopts the following technical scheme:
the low-temperature rapid control device for the purging trap comprises a refrigerating device, a heat insulation plate, a heat dissipation device, a temperature sensor, a heat preservation box and a control device, wherein the refrigerating device is arranged on the periphery of a trap unit, the heat insulation plate and the heat dissipation device are sequentially arranged at the lower end of the refrigerating device, the temperature sensor is respectively connected with the trap unit and the refrigerating device for measuring temperature, the heat preservation box is arranged outside the trap unit and the refrigerating device, and the control device is used for controlling the refrigerating device to cool and maintain constant temperature; the refrigerating device comprises an electronic refrigerating unit and an air cooling unit, wherein the electronic refrigerating unit comprises refrigerating sheets and a refrigerator positioned on the upper surface of the refrigerating sheets, the refrigerator is provided with a plurality of cooling sheets which are parallel and perpendicular to the refrigerating sheets, grooves are arranged between the cooling sheets, and a trap provided by the trap unit is horizontally arranged in the grooves, and the central axis of the trap unit is parallel to the cooling sheets; the air cooling unit is arranged in a space arranged in the middle of the longitudinal direction of the cooling fin, and the outer cover of the heat preservation box is attached to the refrigerator, the trap unit and the air cooling unit to form a sealed cold circulation chamber.
In some embodiments, the trap unit comprises the trap, a ceramic tube sleeved on the trap, a heating wire sleeved on the ceramic tube, and a trap temperature sensor for measuring the trap temperature, wherein two ends of the trap extend out of the insulation box.
In some embodiments, the air cooling unit comprises a fan, the fan is fixedly installed on a horizontal bottom plate arranged on the refrigerator, the front end and the rear end of the fan are respectively provided with a distance from the cooling fin, the side plane of the fan is flush with the plane of the cooling fin at the edge of the refrigerator, and the distances between grooves arranged on the cooling fins at two sides of the fan are the same.
In some embodiments, two support blocks are installed in parallel at two ends of the cooling fin on the heat insulating plate, the support blocks are perpendicular to the cooling fin, the total widths of the support blocks and the ends of the cooling fin are the same, and the distances between the support blocks and the two ends of the cooling fin are the same;
the heat preservation box is fixedly installed on the heat insulating plate, the heat preservation box comprises a top wall and side walls surrounding the periphery of the top wall downwards, grooves matched and attached to the supporting blocks are formed in two end walls of the heat preservation box, the two side walls of the heat preservation box are matched and attached to the cooling fins at the edges of the two side walls of the heat preservation box, the inner surface of the top wall is matched and attached to the tops of the cooling fins, and accordingly air flow generated by the fan in the heat preservation box circularly flows through the trapping well along the grooves between the cooling fins.
In some embodiments, the cooling fin is fixedly provided with a refrigerator temperature sensor.
In some embodiments, a through groove is transversely formed in the upper surface of the heat insulating plate, the through groove corresponds to the cooling fins on two sides of the fan, the cooling fins are arranged in the through groove, and the front surface of the cooling fins for cooling is attached to a bottom plate arranged on the refrigerator.
In some embodiments, the control device is connected to the fan, the cooling plate, the temperature sensor of the refrigerator, and the trap unit, so that when the temperature sensor of the refrigerator detects that the temperature reaches a preset value, the control device controls the fan to start working, cold air is circulated in the insulation box along the groove to blow to the trap, and when the temperature sensor of the trap detects that the temperature reaches the preset value, the control device adjusts the output power of the cooling plate in real time, so that the temperature of the trap is stabilized at the preset value.
In some embodiments, the heat dissipating device comprises a heat sink provided with a plurality of uniformly distributed heat dissipating fins.
The beneficial effects are that:
the utility model discloses a low-temperature rapid control device for a purging trap, which has the following advantages compared with the prior art:
a low-temperature rapid control device for a sweeping trap is characterized in that a refrigerating device comprising an electronic refrigerating unit and an air cooling unit is arranged, a heat insulation plate and a heat dissipation device are arranged at the lower end of the refrigerating device, a plurality of cooling plates which are parallel and perpendicular to the refrigerating plates are arranged through the refrigerating device, grooves are formed between the cooling plates, and a trap arranged in the trap unit is horizontally arranged in the grooves, and the central axis of the trap is parallel to the cooling plates; the air cooling unit is arranged in a space arranged in the middle of the longitudinal direction of the cooling fin, grooves matched and jointed with supporting blocks at two ends are formed in the two end walls of the heat preservation box, the two side walls of the heat preservation box are matched and jointed with the cooling fin at the edge, and the inner surface of the top wall is matched and jointed with the top of the cooling fin, so that air flow generated by the fan in the sealed heat preservation box can only circulate through the trapping trap along the grooves between the cooling fins, and the purpose of rapid cooling is realized; through be equipped with the fan, the refrigeration piece, the refrigerator temperature sensor, the controlling means that trap unit all connects, make when refrigerator temperature sensor detects that the temperature has reached the default, controlling means control the fan begins work, and the air conditioning is in the heat preservation box is followed the recess circulation blows to the trap, when trap temperature sensor detects that the temperature has reached the default, controlling means adjusts in real time the output of refrigeration piece has realized the trap is in the constant temperature state after the temperature reduces to the default, supplies the purge of trap, has overcome prior art cooling difficulty and the technological defect that work efficiency is low.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments are briefly described below to form a part of the present utility model, and the exemplary embodiments of the present utility model and the description thereof illustrate the present utility model and do not constitute undue limitations of the present utility model; in the drawings:
fig. 1 is a schematic structural diagram of a technical scheme of a low-temperature rapid control device for a purge trap provided by an embodiment of the utility model;
FIG. 2 is a schematic view of the structure of FIG. 1 with the insulation box removed;
FIG. 3 is a cross-sectional view A-A of FIG. 1;
fig. 4 is a sectional view of B-B in fig. 3.
In the figure:
a trap 1; a refrigerator 2; a cooling fin 21; a groove 22; a wide groove 23; a bottom plate 24; a cooling plate 3; a radiator 4; a heat sink 41; a heat insulating plate 5; a through groove 51; a ceramic tube 6; a support block 7; a fan 8; a fan bracket 9; a heating wire 10; a refrigerator temperature sensor 11; a trap temperature sensor 12; a thermal insulation box 13; a heat preservation box groove 133; a top wall 131; a sidewall 132; a front end cavity 14; a rear end cavity 15; an intermediate cavity 16; a fastener 17; a circuit board 18.
Description of the embodiments
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to specific embodiments of the present utility model and corresponding drawings. In the description of the present utility model, it should be noted that, as used in the specification and the claims, the term "comprising" is an open-ended term, and thus should be interpreted to mean "including, but not limited to"; "number" means more than 3.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
As shown in fig. 1-4, the technical scheme of the utility model comprises:
the low-temperature rapid control device for the purging trap comprises a refrigerating device, a heat insulation plate 5, a radiator 4, a trap temperature sensor 12, a refrigerator temperature sensor 11, a heat preservation box 13 and a circuit board 17, wherein the refrigerating device is arranged on the periphery of a trap unit, the heat insulation plate 5 and the radiator 4 are arranged at the lower end of the refrigerating device, the trap temperature sensor 12 is respectively connected with the trap unit and the refrigerating device for measuring temperature, and the heat preservation box 13 is sleeved outside the trap unit and the refrigerating device and is used for controlling the refrigerating device to cool and maintain constant temperature; wherein,,
the refrigerating device comprises an electronic refrigerating unit and an air-cooling unit, the electronic refrigerating unit comprises a refrigerating sheet 3 and a refrigerator 2 positioned on the upper surface of the refrigerating sheet 3, the refrigerator 2 is provided with a plurality of cooling sheets 21 which are parallel and perpendicular to the refrigerating sheet 3, grooves 22 are arranged between the cooling sheets 21, a trap 1 arranged in the trap unit is horizontally arranged in the wide grooves 23, and the central axis of the trap 1 is parallel to the cooling sheets 21; the air cooling unit is arranged in a middle cavity 16 arranged in the middle of the longitudinal direction of the cooling fin 21, and the heat preservation box 13 is sleeved outside the refrigerator 2, the trap unit and the air cooling unit to form a sealed cold circulation environment.
The preferred embodiment of the present utility model is shown in fig. 1-4:
the utility model provides a sweep quick speed adjusting accuse device of trap low temperature, includes installs at the peripheral refrigerating plant of trap unit, installs heat insulating board 5 and radiator 4 of refrigerating plant lower extreme, respectively with trap unit refrigerating plant connects the temperature sensor of temperature measurement, install trap unit refrigerating plant is outer heat preservation box 13 and be used for controlling refrigerating plant cooling and maintain constant temperature's controlling means.
The refrigerating device comprises an electronic refrigerating unit and an air cooling unit, the electronic refrigerating unit comprises a refrigerating sheet 3 and a refrigerator 2 positioned on the upper surface of the refrigerating sheet 3, and the front surface of the refrigerating sheet 3 for refrigeration is attached to a bottom plate 24 arranged on the refrigerator 2.
The refrigerator 2 is provided with a plurality of cooling fins 21 which are parallel and perpendicular to the cooling fins 3, the bottom of the cooling fins 21 is a bottom plate 24, grooves 22 are formed between the cooling fins 21, and wide grooves 23 positioned at the outermost side are used for installing the trap units. The trap unit comprises a trap 1, a ceramic tube 6 sleeved outside the trap 1, a heating wire 10 sleeved outside the ceramic tube 6 and a trap temperature sensor 12 for measuring the temperature of the trap 1, wherein the trap 1 is horizontally arranged in the wide groove 23, and the central axis is parallel to the cooling fin 21.
The fan 8 is installed in the middle cavity 16 that the longitudinal middle part of cooling fin 21 was equipped with, the installation direction of fan 8 makes the cold wind that produces blow along recess 22 direction, promptly fan 8 passes through fastener 17 fixed mounting on fan support 9, fan support 9 installs on the horizontal bottom plate 24 that refrigerator 2 was equipped with, just fan 8 is located middle cavity 16, just both sides distance before and after the fan 8 cooling fin 21 all is equipped with the preset interval, the lateral surface of fan 8 with cooling fin 21 plane parallel and level at refrigerator 2 edge, the recess 22 interval that cooling fin 21 was equipped with of fan 8 both sides is all the same.
On the heat insulating board 5, be located the longitudinal both ends of cooling fin 21 are installed respectively with a plurality of cooling fin 21 width the supporting shoe 7 the same, supporting shoe 7 with heat preservation box 13 links firmly, plays the purpose of supporting heat preservation box 13.
The heat preservation box 13 comprises a top wall 131 and a side wall 132 which surrounds the periphery of the top wall 131, the heat preservation box 13 is sleeved outside the refrigerator 2, the trap unit and the air cooling unit, the heat preservation box is fixedly arranged on the heat insulation plate 5 through a fastening piece 17, heat preservation box grooves 133 which are matched with the supporting blocks 7 are formed in the two end walls of the heat preservation box 13, front end cavities 14 and rear end cavities 15 are formed in the end walls formed by the heat preservation box 13 and the supporting blocks 7 respectively, the two side walls 132 of the heat preservation box 13 are matched and attached with the cooling fins 21 at the edges, the inner surface of the top wall 131 is matched and attached with the tops of the cooling fins 21, and the two ends of the trap 1 extend out of the heat preservation box 13 to form a sealed cold circulation environment, so that air flow generated by the fan 8 in the heat preservation box 13 can only flow along the middle cavity 16-groove 22-front end cavity 14-wide groove 23-rear end cavity 15-groove 22-middle cavity 16-fan 8-wide groove 22-wide groove 23-wide air flow is enabled to flow to be circulated to the trap 1, and the air flow is well-cooled down to the trap 1 when the air flow is cooled down to the trap 1, and the air flow is well is cooled down to the trap 1.
In this example, the cooling fin 21 is fixedly provided with a refrigerator temperature sensor 11, and the refrigerator temperature sensor 11 is connected with the circuit board 18.
In this example, the upper surface of the heat insulation board 5 is transversely provided with a through groove 51, the through groove 51 is arranged corresponding to the cooling fins 21 on two sides of the fan 8, the cooling fins 3 are installed in the through groove 51, and the upper surface of the cooling fins 3 and the upper surface of the heat insulation board 5 are located in the same plane, so that the front surface for cooling is attached to the bottom plate 24 provided with the refrigerator 2.
In this example, the circuit board 18 (not shown) is connected to the fan 8, the cooling fin 3, the refrigerator temperature sensor 11, the trap 1, the heating wire 10, and the trap temperature sensor 12.
The heat dissipation device comprises a radiator 4 provided with a plurality of uniformly distributed radiating fins 41.
The specific working process comprises the following steps:
when the temperature detected by the temperature sensor 11 of the refrigerator has reached the preset value, the circuit board 18 controls the fan 8 to start working, cold air circulates in the insulation box 13 along all the grooves 22 and the wide grooves 23, when the cold air blows to the trap 1 each time, the temperature of the trap 1 is reduced, because in a sealed environment, the temperature reduction speed is fast, when the temperature detected by the temperature sensor 12 of the trap has reached the preset value, the circuit board 18 adjusts the output power of the refrigerating plate 3 in real time, so that the temperature of the trap 1 is stabilized at the set value, the set value is usually set to 0-40 ℃, in this example, the temperature is set to 20 ℃, namely, the circuit board 18 controls the output power of the refrigerating plate 3, the temperature is kept at the constant temperature of 20 ℃, after the enrichment of the substances to be detected is completed by the trap 1, the circuit board 18 controls the heating wire 10 to heat the temperature to 200 ℃, and the trap 1 concentrates the enriched substances to be detected in the high temperature section, and the concentrated solution is delivered to the detection module at the rear end.
The embodiments of the present utility model have been described above with reference to the accompanying drawings, but the present utility model is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present utility model and the scope of the claims, which are to be protected by the present utility model.
Claims (8)
1. The utility model provides a sweep quick speed adjusting of trap low temperature accuse device which characterized in that: the device comprises a refrigerating device arranged on the periphery of a trap unit, a heat insulation plate and a heat dissipation device which are sequentially arranged at the lower end of the refrigerating device, a temperature sensor which is respectively connected with the trap unit and the refrigerating device for measuring temperature, a heat preservation box arranged outside the trap unit and the refrigerating device, and a control device for controlling the refrigerating device to cool and maintain constant temperature; wherein,,
the refrigerating device comprises an electronic refrigerating unit and an air cooling unit, the electronic refrigerating unit comprises refrigerating sheets and a refrigerator positioned on the upper surface of the refrigerating sheets, the refrigerator is provided with a plurality of cooling sheets which are parallel and perpendicular to the refrigerating sheets, grooves are arranged between the cooling sheets, and a trap arranged in the trap unit is horizontally arranged in the grooves, and the central axis of the trap is parallel to the cooling sheets; the air cooling unit is arranged in a space arranged in the middle of the longitudinal direction of the cooling fin, and the outer cover of the heat preservation box is attached to the refrigerator, the trap unit and the air cooling unit to form a sealed cold circulation chamber.
2. The purge trap low-temperature rapid control device according to claim 1, wherein: the trap unit comprises the trap, a ceramic tube sleeved outside the trap, a heating wire sleeved outside the ceramic tube and a trap temperature sensor for measuring the temperature of the trap, and two ends of the trap extend out of the heat preservation box.
3. The purge trap low-temperature rapid control device according to claim 2, wherein: the air cooling unit comprises a fan, the fan is fixedly installed on a horizontal bottom plate arranged on the refrigerator, the front end and the rear end of the fan are away from the cooling fin, the distance between the front end and the rear end of the fan is equal to the distance between the side plane of the fan and the plane parallel and level of the cooling fin at the edge of the refrigerator, and the distances between grooves arranged on the cooling fin at two sides of the fan are equal.
4. A purge trap low temperature rapid control device according to claim 3, wherein: two supporting blocks are arranged on the heat insulation plate in parallel at two ends of the cooling fin, the supporting blocks are perpendicular to the cooling fin, the total widths of the supporting blocks and the ends of the cooling fin are the same, and the distances between the supporting blocks and the two ends of the cooling fin are the same;
the heat preservation box is fixedly installed on the heat insulating plate, the heat preservation box comprises a top wall and side walls surrounding the periphery of the top wall downwards, grooves matched and attached to the supporting blocks are formed in two end walls of the heat preservation box, the two side walls of the heat preservation box are matched and attached to the cooling fins at the edges of the two side walls of the heat preservation box, the inner surface of the top wall is matched and attached to the tops of the cooling fins, and accordingly air flow generated by the fan in the heat preservation box circularly flows through the trapping well along the grooves between the cooling fins.
5. The purge trap low-temperature rapid control device according to claim 4, wherein: and the cooling fin is fixedly provided with a refrigerator temperature sensor.
6. The purge trap low-temperature rapid control device according to claim 5, wherein: the heat insulating plate upper surface transversely is equipped with logical groove, logical groove corresponds the fan both sides the cooling fin, lead to the inslot and be equipped with the refrigeration piece, the refrigeration piece is used for refrigerated front with the bottom plate laminating that the refrigerator was equipped with.
7. The purge trap low-temperature rapid control device according to claim 6, wherein: the control device is connected with the fan, the refrigerating sheet, the refrigerator temperature sensor and the trap unit, so that when the refrigerator temperature sensor detects that the temperature reaches a preset value, the control device controls the fan to start working, cold air circularly blows to the trap along the groove in the heat preservation box, and when the trap temperature sensor detects that the temperature reaches the preset value, the control device adjusts the output power of the refrigerating sheet in real time, so that the temperature of the trap is stabilized at the set value.
8. The purge trap low-temperature rapid control device according to claim 1, wherein: the heat dissipation device comprises a radiator provided with a plurality of uniformly distributed radiating fins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320576805.5U CN219434752U (en) | 2023-03-22 | 2023-03-22 | Low-temperature rapid control device for purging trap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320576805.5U CN219434752U (en) | 2023-03-22 | 2023-03-22 | Low-temperature rapid control device for purging trap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219434752U true CN219434752U (en) | 2023-07-28 |
Family
ID=87342869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320576805.5U Active CN219434752U (en) | 2023-03-22 | 2023-03-22 | Low-temperature rapid control device for purging trap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219434752U (en) |
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2023
- 2023-03-22 CN CN202320576805.5U patent/CN219434752U/en active Active
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