CN219166610U - Air-cooled heat regeneration structure and cryoablation device - Google Patents
Air-cooled heat regeneration structure and cryoablation device Download PDFInfo
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- CN219166610U CN219166610U CN202223428287.7U CN202223428287U CN219166610U CN 219166610 U CN219166610 U CN 219166610U CN 202223428287 U CN202223428287 U CN 202223428287U CN 219166610 U CN219166610 U CN 219166610U
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- 230000008929 regeneration Effects 0.000 title description 2
- 238000011069 regeneration method Methods 0.000 title description 2
- 238000011084 recovery Methods 0.000 claims abstract description 75
- 238000010438 heat treatment Methods 0.000 claims abstract description 63
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 47
- 238000005482 strain hardening Methods 0.000 claims abstract description 41
- 239000012530 fluid Substances 0.000 claims description 48
- 230000001172 regenerating effect Effects 0.000 claims description 15
- 238000004891 communication Methods 0.000 claims description 12
- 239000002826 coolant Substances 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 21
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 99
- 239000007789 gas Substances 0.000 description 49
- 229910052757 nitrogen Inorganic materials 0.000 description 48
- 238000002679 ablation Methods 0.000 description 13
- 238000009833 condensation Methods 0.000 description 12
- 230000005494 condensation Effects 0.000 description 12
- 239000007788 liquid Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 7
- 239000000779 smoke Substances 0.000 description 4
- 229910001873 dinitrogen Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 125000003158 alcohol group Chemical group 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
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Abstract
The utility model relates to an air-cooled heat recovery structure and cryoablation equipment, and relates to the technical field of cryoablation. The air-cooled heat recovery structure comprises a cold tank, a heat regenerator, an alcohol recovery tank and a flow guide piece, wherein the heat regenerator is used for exchanging heat with a back-flowing cold working medium so as to enable the back-flowing cold working medium to form target gas; the alcohol recovery tank is communicated with the heat regenerator and can heat the target gas; the flow guiding piece comprises a first flow guiding channel and a second flow guiding channel; the first diversion channel is used for guiding a part of the target gas heated by the alcohol recovery tank into the heat regenerator so as to be used as a heating medium for heat exchange with the reflowed cold working medium; the second diversion channel is used for guiding the other part of the target gas heated by the alcohol recovery tank into the bottom of the cold tank. The technical scheme disclosed by the application can solve the problem that condensed water is easy to form in the existing heat regenerator, and inconvenience is brought to use.
Description
Technical Field
The utility model relates to the technical field of cryoablation, in particular to an air-cooled regenerative structure and cryoablation equipment.
Background
Cryoablation is a surgical medical technique that uses cryoablation of target tissue. The typical cryoablation technical scheme is that a low-temperature working medium, also called cold working medium, is firstly input into an ablation needle, and after an ideal freezing region is formed at an ablation part, a hot working medium is input into the ablation needle to realize rapid re-heating.
The air-cooled heat regenerator is one of the components of the cryoablation device, and the air-cooled heat regenerator adopts heat in the air and the liquid nitrogen which flows back to perform forced heat exchange so as to improve the outlet temperature of nitrogen, so that the outlet nitrogen temperature is similar to or higher than the room temperature or higher than the condensation temperature, the phenomenon of white smoke is reduced, and the influence of the cryoablation device in an operating room is reduced.
However, because the heating medium adopted by the air-cooled heat regenerator is normal-temperature air, water vapor carried in the air can condense on the heat regenerator when the air is cooled, and because new normal-temperature air continuously enters, a large amount of condensed water is formed on the heat regenerator, and inconvenience is brought to use.
Disclosure of Invention
The embodiment of the application provides an air-cooled heat recovery structure and cryoablation equipment, can solve in the current regenerator and easily form the comdenstion water, bring inconvenient problem for the use.
In a first aspect, an embodiment of the present application provides an air-cooled regenerative structure, including:
a cold tank for containing a cold working medium;
the heat regenerator is connected with the cold tank through a connecting pipeline and is used for exchanging heat with the reflowed cold working medium so as to enable the reflowed cold working medium to form target gas;
an alcohol recovery tank in communication with the regenerator, the alcohol recovery tank being operable to heat the target gas; and
the flow guiding piece comprises a first flow guiding channel and a second flow guiding channel;
the first diversion channel is used for guiding a part of the target gas heated by the alcohol recovery tank into the heat regenerator so as to be used as a heating medium for heat exchange with the reflowed cold working medium; the second diversion channel is used for guiding another part of the target gas heated by the alcohol recovery tank into the bottom of the cold tank.
In one embodiment, the baffle comprises a fluid inlet, a first fluid outlet, a second fluid outlet;
wherein the fluid inlet, the first fluid outlet, and the tubing between the fluid inlet and the first fluid outlet form the first diversion channel;
the fluid inlet, the second fluid outlet and the pipeline between the fluid inlet and the second fluid outlet form the second diversion channel.
In one embodiment, the maximum cross-sectional width of the first fluid outlet is greater than the cross-sectional width of the second fluid outlet.
In one embodiment, the regenerator includes:
the heat regenerator body is provided with a heating medium outlet, a heating medium inlet, a cooling medium inlet and a cooling medium outlet; and
the fan is arranged at the heat medium inlet of the heat regenerator body;
the inlet of the fan is communicated with the first fluid outlet, and the outlet of the fan is communicated with the heat medium inlet of the heat regenerator body.
In one embodiment, the regenerator includes a heating element disposed at an outlet of the fan, wherein the heating element is a PTC heating element.
In one embodiment, the regenerator body includes:
the shell is respectively communicated with the heating medium inlet and the heating medium inlet;
the heat exchange tube is arranged in the shell, one end of the heat exchange tube is communicated with the cold working medium inlet, and the other end of the heat exchange tube is communicated with the cold working medium outlet;
wherein, at least one condensing collecting tray is arranged on the shell to guide the target gas heated by the heating element in the shell to the outside of the alcohol recovery tank.
In one embodiment, the alcohol recovery tank has a recovery inlet and a recovery outlet, the recovery inlet interfacing with the cold working medium outlet;
wherein the recovery outlet surrounds the recovery inlet and the recovery outlet is in communication with the fluid inlet.
In one embodiment, a heat insulation layer is arranged on the tank body of the alcohol recovery tank.
In one embodiment, the air-cooled regenerative structure comprises a valve box, and the valve box is used for controlling the connection or disconnection of the connecting pipeline.
In a second aspect, embodiments of the present application provide a cryoablation apparatus including an air cooled regenerative structure as described above.
Compared with the prior art, the embodiment of the application has the advantages that the first diversion channel is provided by arranging the diversion piece, the first diversion channel is used for carrying out heat exchange on the cold working medium by taking the heated target gas nitrogen as the heating medium, and the problem that a large amount of condensed water is formed on the heat regenerator due to the fact that the temperature of the heated target gas nitrogen is increased and the water content is greatly reduced can be effectively solved, so that the phenomenon of white smoke can be effectively reduced, and the problem that in the existing heat exchange process, water vapor can be condensed on the heat regenerator when meeting cold can be effectively solved; meanwhile, the target gas formed by heating and gasifying the cold working medium is used as a heating medium, so that the use of normal-temperature air as the heating medium can be avoided, and the water content in the heating medium can be further reduced. In addition, the second diversion channel is provided through the diversion piece, the target gas heated by the alcohol recovery tank is guided into the bottom of the cold tank by the second diversion channel, condensation frosting at the bottom of the cold tank is reduced, and meanwhile, direct contact between air and an air-cooled heat recovery structure can be reduced, so that air is prevented from entering the heat regenerator to perform heat exchange, and condensed water is further reduced.
Drawings
The utility model will be described in more detail hereinafter on the basis of embodiments and with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of an air-cooled regenerative structure according to an embodiment of the present utility model.
Reference numerals:
10. a cold tank; 20. a regenerator; 210. a regenerator body; 220. a fan; 230. a heating member; 240. a condensing and collecting tray; 250. a cold working medium outlet; 30. a connecting pipeline; 40. an alcohol recovery tank; 410. a recovery inlet; 420. a recovery outlet; 430. a thermal insulation layer; 50. a flow guide; 510. a first flow directing channel; 520. a second flow directing channel; 530. a first fluid outlet; 540. a second fluid outlet; 550. a fluid inlet; 60. a valve box.
Detailed Description
The utility model will be further described with reference to the accompanying drawings.
The air-cooled heat regenerator is one of the components of the cryoablation device, and the air-cooled heat regenerator adopts heat in the air and the liquid nitrogen which flows back to perform forced heat exchange so as to improve the outlet temperature of nitrogen, so that the outlet nitrogen temperature is similar to or higher than the room temperature or higher than the condensation temperature, the phenomenon of white smoke is reduced, and the influence of the cryoablation device in an operating room is reduced.
However, because the heating medium adopted by the air-cooled heat regenerator is normal-temperature air, water vapor carried in the air can condense on the heat regenerator when the air is cooled, and because new normal-temperature air continuously enters, a large amount of condensed water is formed on the heat regenerator, and inconvenience is brought to use.
In order to solve the above technical problems, at least one embodiment of the present application provides an air-cooled regenerative structure, which includes a cold tank 10, a regenerator 20, an alcohol recovery tank 40, and a flow guide 50; the cold tank 10 is used for containing cold working medium; the heat regenerator 20 is connected with the cold tank 10 through a connecting pipeline 30 and is used for exchanging heat with the reflowed cold working medium so as to enable the reflowed cold working medium to form target gas; the alcohol recovery tank 40 is communicated with the heat regenerator 20, and the alcohol recovery tank 40 heats the target gas; the flow guiding element 50 comprises a first flow guiding channel 510 and a second flow guiding channel 520; the first diversion channel 510 is used for guiding a part of target gas heated by the alcohol recovery tank 40 into the regenerator 20 to be used as a heating medium for exchanging heat with the reflowed cold working medium; the second diversion channel 520 is used to direct another portion of the target gas heated by the alcohol recovery tank 40 to the bottom of the cold tank 10.
From the above, the first diversion channel 510 is provided by the diversion piece 50, the first diversion channel 510 is used for exchanging heat with the cold working medium by taking the heated target gas nitrogen as the heating medium, and the temperature of the heated target gas nitrogen is increased and the water content is greatly reduced, so that the phenomenon of white smoke can be effectively reduced, and the problem that a large amount of condensed water is formed on the heat regenerator 20 due to condensation of water vapor on the heat regenerator 20 in the existing heat exchanging process can be effectively solved; meanwhile, the target gas formed by heating and gasifying the cold working medium is used as a heating medium, so that the use of normal-temperature air as the heating medium can be avoided, and the water content in the heating medium can be further reduced. In addition, the second flow guiding channel 520 is provided by the flow guiding member 50, the target gas heated by the alcohol recovery tank 40 is guided into the bottom of the cold tank 10 by the second flow guiding channel 520, so as to reduce condensation and frosting at the bottom of the cold tank 10, and meanwhile, the direct contact between the air and the air-cooled heat recovery structure can be reduced, so that the air is prevented from entering the heat regenerator 20 to exchange heat, and the condensed water is further reduced.
As shown in fig. 1, the air-cooled regenerative structure comprises a cold tank 10, a regenerator 20, an alcohol recovery tank 40 and a flow guide 50;
the cold tank 10 is used for containing a cold working medium. It should be noted that the cold working medium in the embodiment of the present application is liquid nitrogen. It should be further noted that, the outlet of the cold tank 10 may be connected to the ablation needle of the cryoablation apparatus, and the cold working medium in the cold tank 10 may enter the ablation needle to meet the requirements of the cryoablation operation.
The regenerator 20 is connected to the cold tank 10 through a connection pipe 30 and is used for exchanging heat with the recirculated cold working medium so that the recirculated cold working medium forms a target gas. It should be noted that, the ablation needle of the cryoablation apparatus has a medium return outlet, and the medium return outlet is communicated with the cold working medium inlet of the heat exchange tube, so that the cold working medium in the ablation needle flows back into the regenerator 20. The target gas is nitrogen gas formed by gasification of liquid nitrogen.
The alcohol recovery tank 40 is in communication with the regenerator 20, and the alcohol recovery tank 40 can heat the target gas. It should be noted that the cryoablation apparatus may include a thermal tank for providing a thermal medium, an outlet of the thermal tank is connected to the ablation needle, and the thermal tank provides alcohol vapor at 100 ℃ for the ablation needle as the thermal medium, so that the cryoablation apparatus not only can satisfy the cryoablation requirement, but also can satisfy the hot-melt operation requirement. In addition, the hot working medium alcohol vapor in the ablation needle can flow back into the heat regenerator 20, is discharged into the alcohol recovery tank 40 by the heat regenerator 20, and is condensed and liquefied by the alcohol recovery tank 40 to recover alcohol, and meanwhile, the target gas nitrogen is heated by utilizing heat emitted in the condensation and liquefaction process. It should be further noted that the specific construction of the alcohol recovery tank 40 is prior art, and the embodiments of the present application will not be repeated.
The target gas nitrogen is heated by the alcohol recovery tank 40, so that the temperature of the target gas nitrogen is increased, and the heated target gas nitrogen can be used as a heating medium to exchange heat with liquid nitrogen in the heat regenerator 20, thereby providing conditions for normal operation and use of the equipment.
The flow guiding piece 50, the flow guiding piece 50 comprises a first flow guiding channel 510 and a second flow guiding channel 520; the first diversion channel 510 is used for guiding a part of target gas heated by the alcohol recovery tank 40 into the regenerator 20 to be used as a heating medium for exchanging heat with the reflowed cold working medium; the second diversion channel 520 is used to direct another portion of the target gas heated by the recovery tank to the bottom of the cold tank 10. The target gas nitrogen is split by the guide piece 50, the heated target gas nitrogen is introduced into the heat regenerator 20 by the first guide channel 510 and is used as a heating medium to exchange heat with the cold working medium, and the problem that a large amount of condensed water is formed on the heat regenerator 20 due to condensation of water vapor on the heat regenerator 20 when the water content of the heated target gas is greatly reduced in the existing heat exchange process can be effectively solved; the target gas heated by the recovery tank is guided to the bottom of the cold tank 10 by the second diversion channel 520, so that condensation frosting at the bottom of the cold tank 10 is reduced, direct contact between air and an air-cooled heat recovery structure is reduced, and air is prevented from entering the regenerator 20 to exchange heat, so that condensed water is further reduced.
As shown in fig. 1, in some embodiments, the baffle 50 includes a fluid inlet 550, a first fluid outlet 530, and a second fluid outlet 540;
wherein the fluid inlet 550, the first fluid outlet 530, and the first diversion channel 510 formed by the pipeline between the fluid inlet 550 and the first fluid outlet 530; a fluid inlet 550, a second fluid outlet 540, and a conduit between the fluid inlet 550 and the second fluid outlet 540. It should be noted that the maximum cross-sectional width of the first fluid outlet 530 is greater than the cross-sectional width of the second fluid outlet 540.
As shown in fig. 1, in some embodiments, regenerator 20 includes a regenerator body 210 and a fan 220; the regenerator body 210 has a heating medium outlet, a heating medium inlet, a cooling medium inlet, and a cooling medium outlet. It should be noted that, when the cryoablation apparatus includes a hot tank for providing a hot working medium, and the hot working medium provided by the hot tank is alcohol vapor, during the use of the cryoablation apparatus, the cold working medium outlet 250 of the regenerator 20 has both the emission of target gas nitrogen and the emission of alcohol vapor.
The fan 220 is disposed at the heat medium inlet of the regenerator body 210. Wherein an inlet of the fan 220 is in communication with the first fluid outlet 530, and an outlet of the fan 220 is in communication with a heating medium inlet of the regenerator body 210. Negative pressure is formed by arranging the fan 220 so as to lead the heated target gas nitrogen into the heat regenerator 20 through the fan 220 and provide heating medium for the heat regenerator 20.
As shown in fig. 1, in some embodiments, regenerator 20 includes a heating element 230, heating element 230 being disposed at the outlet of fan 220. Since the temperature of the target gas nitrogen heated by the recovery tank is low, the target gas nitrogen is further heated by the heating member 230 to increase the temperature of the target gas as a heating medium, thereby improving heat exchange efficiency.
In some embodiments, the heating element 230 is a PTC heating element 230. The PTC heating member 230 is composed of a PTC ceramic heating element and an aluminum tube. By heating the target gas nitrogen with the PTC heating member 230, there are advantages of high heating efficiency, power saving and safety.
In some embodiments, regenerator body 210 includes a housing and heat exchange tubes; the shell is respectively communicated with the heating medium inlet and the heating medium outlet. The target gas nitrogen heated by the PTC heating element 230 enters the shell through the heating medium inlet, so that preparation is made for heat exchange; and the normal-temperature nitrogen after heat exchange is completed is discharged into the external environment through a heat medium outlet.
The heat exchange tube is disposed within the housing, one end of the heat exchange tube is in communication with the cold working medium inlet and the other end is in communication with the cold working medium outlet 250. It should be noted that the heat exchange tube may be spirally set in the shell to increase the residence time of the cold working medium liquid nitrogen in the heat exchange tube, so as to exchange heat fully. It should be noted that the heat exchange fins are arranged on the outer wall of the heat exchange tube, so as to further improve the heat dissipation efficiency, make the returned cold working medium liquid nitrogen be completely converted into nitrogen, and improve the overall temperature of the nitrogen.
As shown in fig. 1, there is at least one condensing collecting tray 240 on the housing to guide the target gas heated by the heating member 230 in the housing to the outside of the alcohol recovery tank 40. It should be noted that, the housing may be provided with a plurality of condensation collecting trays 240, and the plurality of condensation collecting trays 240 are circumferentially arranged around the housing. The target gas nitrogen is guided to the periphery of the recovery tank through the condensation collection plate 240, the outer wall of the recovery tank is blown, and an air curtain is formed on the periphery of the recovery tank, so that the air cooling heat recovery structure is reduced to be in direct contact with air, the air is prevented from entering the heat regenerator 20 to exchange heat, and condensate water is further reduced.
As shown in fig. 1, in some embodiments, the alcohol recovery tank 40 has a recovery inlet 410 and a recovery outlet 420, the recovery inlet 410 interfacing with the cold medium outlet; wherein the recovery outlet 420 surrounds the recovery inlet 410 and the recovery outlet 420 is in communication with the fluid inlet 550.
As shown in fig. 1, in some embodiments, an insulating layer 430 is provided on the body of the alcohol recovery tank 40. The insulating layer 430 includes, but is not limited to, a glass fiber insulating layer and a rock wool insulating layer. The heat dissipation of the alcohol recovery tank 40 generated in the process of condensing and liquefying alcohol is reduced by arranging the heat insulation layer 430, so that the heat is used for heating target gas nitrogen which enters the alcohol recovery tank 40 together with alcohol vapor, and the temperature of the target gas nitrogen is improved, so that the heat exchange efficiency is improved.
As shown in fig. 1, in some embodiments, the air-cooled regenerative structure includes a valve box 60, and the valve box 60 is used to control the connection or disconnection of the connecting pipe 30. It should be noted that, a phase separator may be disposed in the valve box 60, and the cold working medium in the cold tank 10 separates the gasified nitrogen in the cold tank 10 through the phase separator before entering the ablation needle, so as to ensure that the liquid nitrogen flows into the ablation needle as much as possible, so as to improve the cryoablation effect. In addition, the gasified nitrogen gas can enter the heat regenerator 20 and then be discharged to the external environment, so as to avoid the discharge of the low-temperature nitrogen gas into the external environment.
The working process of the embodiment of the application comprises the following steps:
when the cryoablation apparatus is in standby, the cryoablation apparatus has no low temperature output, the fan 220 is operated, and the regenerator 20 is filled with ambient temperature air.
When the cryoablation equipment starts low-temperature output, the ablation needle flows back liquid nitrogen into the heat regenerator 20, the first heat exchange is carried out through the heat regenerator 20, and the liquid nitrogen is gasified into target gas nitrogen; the target gas nitrogen flows into the alcohol recovery tank 40, the target gas nitrogen performs secondary heat exchange in the alcohol recovery tank 40, and the heated target gas nitrogen enters the guide piece 50 through the recovery outlet 420;
part of the heated target gas nitrogen is guided to the fan 220 through the first diversion channel 510, is heated by the PTC heating element 230, and is guided to the regenerator 20 after third heat exchange to be used as a heating medium for heat exchange with the reflux liquid nitrogen; after the heat exchange between the target gas nitrogen serving as the heating medium in the heat regenerator 20 and the liquid nitrogen is completed, the target gas nitrogen is normal-temperature nitrogen and is discharged from the heating medium outlet and the condensation collecting disc 240;
another part of the heated target gas nitrogen is guided to the bottom of the cold tank 10 through the second guide channel 520.
In a second aspect, an embodiment of the present application provides a cryoablation apparatus, including an air-cooled regenerative structure according to any one embodiment of the present application, and further has all technical effects brought by the technical solutions of the foregoing embodiments.
While the utility model has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present utility model is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.
Claims (10)
1. An air-cooled regenerative structure, comprising:
a cold tank (10) for containing a cold working medium;
the heat regenerator (20) is connected with the cold tank (10) through a connecting pipeline (30) and is used for exchanging heat with the reflowed cold working medium so as to enable the reflowed cold working medium to form target gas;
an alcohol recovery tank (40) in communication with the regenerator (20), the alcohol recovery tank (40) being operable to heat the target gas; and
a flow guide (50), the flow guide (50) comprising a first flow guide channel (510) and a second flow guide channel (520);
the first diversion channel (510) is used for guiding a part of the target gas heated by the alcohol recovery tank (40) into the heat regenerator (20) so as to be used as a heating medium to exchange heat with the reflowed cold working medium; the second diversion channel (520) is used for guiding another part of the target gas heated by the alcohol recovery tank (40) into the bottom of the cold tank (10).
2. The air-cooled regenerative structure of claim 1, wherein the flow guide (50) comprises a fluid inlet (550), a first fluid outlet (530), a second fluid outlet (540);
wherein the fluid inlet (550), the first fluid outlet (530) and the piping between the fluid inlet (550) and the first fluid outlet (530) constitute the first diversion channel (510);
the fluid inlet (550), the second fluid outlet (540) and the piping between the fluid inlet (550) and the second fluid outlet (540) constitute the second diversion channel (520).
3. The air-cooled regenerative structure of claim 2, wherein a maximum cross-sectional width of the first fluid outlet (530) is greater than a cross-sectional width of the second fluid outlet (540).
4. An air-cooled regenerator structure according to claim 2, characterized in that the regenerator (20) comprises:
a regenerator body (210) having a heating medium outlet, a heating medium inlet, a cooling medium inlet, and a cooling medium outlet; and
a fan (220) provided at a heat medium inlet of the regenerator body (210);
wherein an inlet of the fan (220) is in communication with the first fluid outlet (530), and an outlet of the fan (220) is in communication with the heat medium inlet of the regenerator body (210).
5. The air-cooled regenerator structure of claim 4, wherein the regenerator (20) comprises a heating element (230), the heating element (230) being disposed at an outlet of the fan (220);
wherein the heating element (230) is a PTC heating element (230).
6. An air-cooled regenerator structure according to claim 5, characterized in that the regenerator body (210) comprises:
the shell is respectively communicated with the heating medium inlet and the heating medium inlet;
the heat exchange tube is arranged in the shell, one end of the heat exchange tube is communicated with the cold working medium inlet, and the other end of the heat exchange tube is communicated with the cold working medium outlet;
wherein the housing has at least one condensing collecting tray (240) thereon to guide the target gas heated by the heating member (230) inside the housing to the outside of the alcohol recovery tank (40).
7. The air-cooled regenerative structure according to claim 4, wherein the alcohol recovery tank (40) has a recovery inlet (410) and a recovery outlet (420), the recovery inlet (410) being in abutment with the cold medium outlet;
wherein the recovery outlet (420) surrounds the recovery inlet (410) and the recovery outlet (420) is in communication with the fluid inlet (550).
8. The air-cooled regenerative structure according to claim 7, wherein a heat insulation layer (430) is provided on the tank body of the alcohol recovery tank (40).
9. An air-cooled regenerator structure according to claim 1, characterized in that it comprises a valve box (60), said valve box (60) being adapted to control the connection or disconnection of said connecting duct (30).
10. A cryoablation apparatus comprising an air cooled regenerative structure as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223428287.7U CN219166610U (en) | 2022-12-19 | 2022-12-19 | Air-cooled heat regeneration structure and cryoablation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223428287.7U CN219166610U (en) | 2022-12-19 | 2022-12-19 | Air-cooled heat regeneration structure and cryoablation device |
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| Publication Number | Publication Date |
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| CN219166610U true CN219166610U (en) | 2023-06-13 |
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| CN202223428287.7U Active CN219166610U (en) | 2022-12-19 | 2022-12-19 | Air-cooled heat regeneration structure and cryoablation device |
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| Country | Link |
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| CN (1) | CN219166610U (en) |
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