Heat exchange condensing device and cooking equipment thereof

Abstract

The utility model discloses a heat exchange condensing device and cooking equipment thereof, the heat exchange condensing device comprises a pipeline assembly arranged in a spiral winding mode, the pipeline assembly comprises an inner pipe, the inner pipe is arranged in a spiral winding mode, a first spiral flow channel is formed in the inner pipe, and a second spiral flow channel is formed in the outer pipe; a first inlet and a first outlet are formed in the two opposite ends of the inner pipe correspondingly, and the first inlet and the first outlet communicate with the first spiral flow channel correspondingly to form a first channel; the outer pipe is arranged in a spiral winding mode and arranged outside the inner pipe in a sleeving mode, a second spiral flow channel is formed between the outer pipe and the inner pipe, a second inlet and a second outlet are formed in the outer pipe, and the second inlet and the second outlet are communicated with the second spiral flow channel to form a second channel. The heat exchange condensing device is simple in structure and capable of solving the problem that high-temperature steam exhausted from the front of the embedded steaming oven is scalded.

Description

TECHNICAL FIELD

[0001] The utility model relates to kitchen electrical technology field especially relates to a heat exchange condensing device and cooking equipment thereof. BACKGROUND

[0002] At present, the embedded steaming oven on the market all adopt the front exhaust, the high-temperature gas discharged does not do other aspects of processing, the high-temperature gas is directly connected to the air duct from the cavity inside through the pipe, and finally the high-temperature gas is discharged from the front end of the product by the air duct.

[0003] The high-temperature gas is directly discharged from the front end of the product during the use of the machine, and due to the high temperature of the discharged gas, it is easy to scald people or cause water droplets to hang on the air outlet, which affects the overall use experience. SUMMARY

[0004] The utility model aims at at least in a certain extent solve one of the problems existing in prior art related, for this purpose, the utility model provides a heat exchange condensing device, simple structure can solve the problem that the embedded steaming oven is scalded by the high-temperature steam discharged from the front.The utility model also provides a cooking equipment.

[0005] According to the heat exchange condensing device provided above, the following technical scheme is used to realize it:

[0006] A heat exchange condensing device, comprising a pipe assembly spirally wound, the pipe assembly comprises: an inner tube, the inner tube is spirally wound, a first spiral flow channel is formed in the inner tube, a first inlet and a first outlet are respectively arranged at opposite ends of the inner tube, the first inlet and the first outlet are respectively connected with the first spiral flow channel to form a first channel;An outer tube, the outer tube is spirally wound and sleeved on the inner tube, a second spiral flow channel is formed between the outer tube and the inner tube, a second inlet and a second outlet are arranged on the outer tube, the second inlet and the second outlet are respectively connected with the second spiral flow channel to form a second channel.

[0007] In some embodiments, the inner tube is an inner steam pipe made of heat-conducting material, the first inlet is arranged at the lowest point of the inner steam pipe, and the first outlet is arranged at the upper end of the inner steam pipe;The outer tube is an outer water pipe made of heat-conducting material or heat-insulating material, the second inlet and the second outlet are respectively arranged at the upper and lower ends of the outer water pipe, or the second inlet and the second outlet are respectively arranged at the lower and upper ends of the outer water pipe.

[0008] In some embodiments, the inner tube is an inner water tube made of a heat-conductive material, the first inlet and the first outlet are arranged at the upper and lower ends of the inner water tube, respectively, or the first inlet and the first outlet are arranged at the lower and upper ends of the inner water tube, respectively; the outer tube is an outer heat-conductive tube, the second inlet is arranged at the lowest point of the outer heat-conductive tube, and the second outlet is arranged at the upper end of the outer heat-conductive tube.

[0009] In some embodiments, a heat dissipation assembly is further arranged at the inner ring and / or the outer ring of the pipeline assembly, and the heat dissipation assembly is connected to or abuts against the outer surface of the outer heat-conductive tube.

[0010] In some embodiments, the heat dissipation assembly comprises a plurality of inner strip-shaped heat dissipation fins and / or a plurality of outer strip-shaped heat dissipation fins arranged circumferentially at intervals, the inner strip-shaped heat dissipation fins are arranged vertically at the inner ring of the pipeline assembly and connected to or abut against the outer lateral wall of the inner ring of the outer heat-conductive tube, and the outer strip-shaped heat dissipation fins are arranged vertically at the outer ring of the pipeline assembly and connected to or abut against the outer lateral wall of the outer ring of the outer heat-conductive tube.

[0011] In some embodiments, the heat dissipation assembly comprises a plurality of inverted U-shaped heat dissipation fins arranged circumferentially at intervals, the inverted U-shaped heat dissipation fins are clamped from top to bottom outside the pipeline assembly, and the inverted U-shaped heat dissipation fins are connected to or abut against the outer lateral wall of the inner ring and the outer lateral wall of the outer ring of the pipeline assembly, respectively.

[0012] In some embodiments, a heat dissipation fan is further arranged outside the pipeline assembly, and the air outlet direction of the heat dissipation fan is towards the pipeline assembly.

[0013] In some embodiments, a support assembly is further connected to the outer tube of the pipeline assembly.

[0014] According to the above-mentioned cooking device, the following technical solutions are adopted:

[0015] A cooking device comprises: an inner container assembly provided with a cooking cavity with one side open and an exhaust port in communication with the inner container; a water tank assembly arranged at the top of the inner container assembly and having a water outlet; an evaporator arranged outside the inner container assembly and having a water inlet and a steam outlet in communication with the cooking cavity; an exhaust assembly arranged at the top of the inner container assembly and in communication with the external atmosphere; a heat exchange condensing device as described above mounted outside the inner container assembly; the water outlet is in communication with the water inlet in sequence through the first channel, and the exhaust port is in communication with the exhaust assembly through the second channel; or the water outlet is in communication with the water inlet in sequence through the second channel, and the exhaust port is in communication with the exhaust assembly in sequence through the first channel.

[0016] In some embodiments, a second temperature probe is arranged on the exhaust assembly, the second temperature probe is used for detecting the exhaust temperature in the exhaust assembly in real time, the heat exchange condensing device has a cooling fan, and the cooling fan is used for adjusting its working gear according to the exhaust temperature.

[0017] Compared with the prior art, at least the following beneficial effects are achieved by the utility model:

[0018] The utility model discloses a spiral structure is formed to the inner tube of having the first spiral flow channel, and the outer tube is spirally coiled and is set and is installed in the outer tube, and the second spiral flow channel is formed between the inner and outer tubes, when high temperature steam flows through one flow channel, is affected by the water or low temperature of another flow channel and is cooled down, to realize the reduction of high temperature steam temperature, solve the problem of scalding of high temperature steam that the embedded type steaming oven is discharged from the front, the water that is preheated by high temperature steam flows to the evaporator of cooking equipment, to improve the steam output efficiency of evaporator, reduce energy consumption. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the structure schematic diagram of heat exchange condensing device in the utility model embodiment 1, and the heat exchange condensing device includes the first spiral flow channel and the second spiral flow channel.

[0020] Figure 2 It is the structure schematic diagram of heat exchange condensing device in the utility model embodiment 1, and the heat exchange condensing device includes the first spiral flow channel and the second spiral flow channel. Figure 1

[0021] Figure 3 It is the structure schematic diagram of heat exchange condensing device in the utility model embodiment 1, and the heat exchange condensing device includes the first spiral flow channel and the second spiral flow channel. Figure 2

[0022] Figure 4 It is the structure schematic diagram of cooking equipment in the utility model embodiment 1, and the cooking equipment includes the heat exchange condensing device. Figure 1

[0023] Figure 5 It is the structure schematic diagram of cooking equipment in the utility model embodiment 1, and the cooking equipment includes the heat exchange condensing device. Figure 2

[0024] Figure 6 It is the sectional view of heat exchange condensing device in the utility model embodiment 2.

[0025] Figure 7 It is the top view of heat exchange condensing device in the utility model embodiment 3.

[0026] Figure 8 It is the top view of heat exchange condensing device in the utility model embodiment 4.

[0027] ​​​​In the figure: 11-inner tube, 111-first spiral flow channel, 112-first inlet, 113-first outlet, 12-outer tube, 121-second spiral flow channel, 122-second inlet, 123-second outlet; 21-inner strip-shaped fin, 22-outer strip-shaped fin, 23-inverted U-shaped fin; 3-heat dissipation fan; 4-L-shaped support;

[0028] 5-inner container assembly, 51-cooking cavity, 52-exhaust port; 61-water tank assembly, 611-water outlet, 62-water pump; 7-evaporator, 71-water inlet, 72-vapor outlet; 8-exhaust assembly, 81-second temperature probe. DETAILED DESCRIPTION

[0029] The following examples are used to illustrate the present application, but the present application is not limited by these examples. Modifications or equivalent replacements of the specific implementation manners of the present application or partial technical features are made without departing from the spirit of the present application, which should be covered in the technical scheme range of the present application.

[0030] Example 1

[0031] Reference Figures 1-3 The present embodiment provides a heat exchange condensing device applied to a cooking equipment, the heat exchange condensing device comprising a spiral coiled pipe assembly (not shown in the figure), the spiral coiled number of the pipe assembly is not less than 1, preferably not less than 2, the pipe assembly has a first channel and a second channel, and the second channel is located at the periphery of the first channel.

[0032] The pipe assembly comprises an inner tube 11 and an outer tube 12, the inner tube 11 is spiral coiled, the spiral coiled number of the inner tube 11 is not less than 1, preferably not less than 2, a first spiral flow channel 111 is formed in the inner tube 11, a first inlet 112 and a first outlet 113 are respectively arranged at the opposite ends of the inner tube 11, and the first inlet 112 and the first outlet 113 are respectively connected with the first spiral flow channel 111 to form the first channel. The outer tube 12 is spiral coiled and sleeved on the outer tube 11, the spiral coiled number of the outer tube 12 is not less than 1, preferably not less than 2, and the opposite ends of the outer tube 12 are fixedly connected with the opposite ends of the inner tube 11. A second spiral flow channel 121 is formed between the outer tube 12 and the inner tube 11, the flow direction of the fluid flowing through the second channel 121 is the same as or opposite to that of the fluid flowing through the first channel 111, a second inlet 122 and a second outlet 123 are arranged on the outer tube 12, and the second inlet 122 and the second outlet 123 are respectively connected with the second spiral flow channel 121 to form the second channel.

[0033] In this embodiment, the number of spiral turns of the inner tube 11 and the outer tube 12 is greater than 3 turns and less than 4 turns, so as to ensure a longer heat exchange path and facilitate sufficient heat exchange. The first channel is used for passing high-temperature steam, and the second channel is used for passing normal-temperature water. At this time, the pipeline assembly is arranged in an inner water passage and outer air passage layout, as shown in Figure 3 When the high-temperature steam flows through the second channel, it is cooled by the water flowing through the first channel or low-temperature water, so as to reduce the temperature of the high-temperature steam and solve the problem of scalding caused by the high-temperature steam discharged from the front of the embedded steam oven. The water preheated by the high-temperature steam finally flows to the evaporator of the cooking device, so as to improve the steam output efficiency of the evaporator and reduce energy consumption.

[0034] Referring to Figures 2-3 Optionally, the inner tube 11 is an inner water tube made of a heat-conducting material. The first inlet 112 and the first outlet 113 are respectively arranged at the upper and lower ends of the inner water tube, so as to facilitate the downward flow of water after entering the heat exchange and condensation device. The outer tube 12 is an outer heat-conducting tube. The second inlet 122 is arranged at the lowest point of the outer heat-conducting tube, and the second outlet 123 is arranged at the upper end of the outer heat-conducting tube. At this time, the flow direction of the normal-temperature water in the first channel is completely opposite to the flow direction of the high-temperature steam in the second channel. In this way, not only is the logic of the upward rising of the high-temperature steam met, but also the water in the high-temperature steam is separated out to form condensed water when the high-temperature steam flows through the heat exchange and condensation device. Finally, the condensed water can flow back into the cooking cavity of the cooking device, so as to ensure that the discharged gas does not carry water vapor and the phenomenon of condensed water droplets occurring at the air outlet position of the cooking device is avoided, thereby improving the user experience.

[0035] It is particularly pointed out that the first inlet 112 and the first outlet 113 can also be arranged at the lower and upper ends of the inner water tube, respectively, so that the water flows upward after entering the heat exchange and condensation device. In this way, the flow direction of the water in the first channel is the same as the flow direction of the high-temperature steam in the second channel.

[0036] Referring to Figures 1-3 Further, the heat exchange and condensation device further comprises a heat dissipation assembly (not shown in the figure). The heat dissipation assembly is arranged at the inner circle and / or the outer circle of the pipeline assembly, and the heat dissipation assembly is connected or abuts against the outer surface of the outer heat-conducting tube. In this way, the heat dissipation assembly can perform heat exchange with the high-temperature steam flowing through the outer heat-conducting tube. Under the cooperation of the heat dissipation assembly and the low-temperature characteristics of the first flow channel, the heat exchange speed is accelerated, the temperature of the high-temperature steam is quickly reduced, the problem of scalding caused by the high-temperature steam discharged from the front of the embedded steam oven is effectively solved, and the user experience is improved.

[0037] Referring to Figures 2-3In the embodiment, the heat dissipation assembly is arranged at the inner ring of the pipeline assembly, and the height of the heat dissipation assembly is equal to or close to the height of the outer heat pipe, specifically, the bottom of the heat dissipation assembly is higher than or flush with the lowest point of the top of the pipeline assembly, and the top of the heat dissipation assembly is lower than or flush with the highest point of the top of the pipeline assembly, so as to increase the contact area between the heat dissipation assembly and the outer heat pipe, and further improve the heat dissipation effect. The heat dissipation assembly includes a plurality of inner strip-shaped heat dissipation fins 21 arranged at intervals in the circumferential direction, which are vertically arranged at the inner ring of the pipeline assembly and connected or abutted with the outer side wall of the inner ring of the outer heat pipe, and the outer strip-shaped heat dissipation fin 22 is vertically arranged at the outer ring of the pipeline assembly and connected or abutted with the outer side wall of the outer ring of the outer heat pipe.

[0038] Reference Figures 1-3 Further, the heat exchange condensing device further comprises a heat dissipation fan 3 arranged outside the pipeline assembly and located at the bottom of the heat dissipation assembly. Of course, it can also be arranged at the top of the heat dissipation assembly. The air outlet direction of the heat dissipation fan 3 is towards the pipeline assembly, for dissipating heat of the heat dissipation assembly and / or the heat conduction assembly. Therefore, through the cooperation of the low-temperature characteristics of the first channel, the heat dissipation assembly and the heat dissipation fan, the high-temperature steam flowing through the second channel is rapidly cooled, and at the same time, a set of water-vapor separation condensing system is formed to separate the water in the high-temperature steam, so as to ensure that the discharged gas does not carry water vapor.

[0039] It is particularly pointed out that a temperature sensor for detecting the temperature of the steam can be added at the second outlet of the outer heat pipe, and the heat dissipation fan 3 can be configured to adjust its working gear according to the temperature of the steam, so as to realize stable and reliable cooling effect. Of course, at least one of the heat dissipation fan 3 and the heat dissipation assembly can be omitted to reduce the manufacturing cost while condensing and cooling the high-temperature steam.

[0040] Reference Figures 1-3 Further, the heat exchange condensing device further comprises a support assembly connected with the outer pipe 12 of the pipeline assembly, for fixing and installing the heat exchange condensing device on the top of the inner container assembly of the cooking equipment. In the embodiment, the support assembly includes two L-shaped supports 4 arranged at opposite outer sides of the pipeline assembly, and the upper ends of the two L-shaped supports are respectively connected and fixed with the outer pipe 12, so as to reliably support the pipeline assembly and the heat dissipation assembly connected and fixed on the pipeline assembly.

[0041] Reference Figures 4-5The embodiment also provides a cooking device, which is a steam oven or a steam oven, and comprises an inner container assembly 5, a water tank assembly 61, a water pump 62, an evaporator 7 and an exhaust assembly 8. The inner container assembly 5 is provided with a cooking cavity 51 with an open side and an exhaust port 52 connected to the inner container. A first temperature probe (not shown in the figure) is arranged on the inner container assembly 5 and used to detect the cavity temperature in the cooking cavity 51 in real time. The water tank assembly 61 and the water pump 62 are both mounted on the top of the inner container assembly 5. The water tank assembly 61 is provided with a water inlet (not shown in the figure) and a water outlet 611. The evaporator 7 is arranged outside the inner container assembly 5 and has a water inlet 71 and a steam outlet 72 connected to the cooking cavity 51. The exhaust assembly 8 is arranged on the top of the inner container assembly 5 and connected to the external atmosphere.

[0042] The cooking device further comprises a heat exchange condensing device as described above, which is mounted outside the inner container assembly 5. In this embodiment, the water outlet 611 of the water tank assembly 61 is connected to the water inlet 71 of the evaporator 7 in sequence through the water pump 62 and a first channel of the heat exchange condensing device. The exhaust port 52 of the inner container assembly 5 is connected to the exhaust assembly 8 through a second channel of the heat exchange condensing device.

[0043] When the cooking device starts the steam function, the water at room temperature in the water tank assembly 61 enters the first inlet of the heat exchange condensing device through the water pump 62, flows to the first outlet along the first inlet of the heat exchange condensing device, and is heated in the evaporator 7. The water is heated into steam in the evaporator 7, and then enters the cooking cavity 51 of the inner container assembly 5. At this time, the steam in the cooking cavity 51 flows to the second inlet of the heat exchange condensing device. When the high-temperature steam enters the second channel, it is rapidly cooled by the low temperature of the first channel. The heat dissipation assembly and the outer heat conduction pipe 12 are used to rapidly cool the outer wall of the outer heat conduction pipe 12 by using the heat conduction performance of the heat conduction material. The multiple cooling fins on the outer heat conduction pipe 12 also accelerate the speed of heat switching. The heat dissipation fan 3 at the bottom of the heat exchange condensing device rapidly cools the heat dissipation assembly and the outer wall of the outer heat conduction pipe 12. In this way, a set of rapid cooling cooking device is formed.

[0044] As can be seen, the high-temperature steam in the cooking cavity 51 is rapidly cooled by the low-temperature water path of the inner water pipe and the heat switching of the heat dissipation assembly after entering the heat exchange condensing device. At this time, the high-temperature steam entering the second channel is rapidly cooled by the internal and external heat exchange structure of the heat exchange condensing device from top to bottom. The water in the high-temperature steam is separated out by the low temperature, and the condensed water flows back to the cooking cavity 51. The gas after cooling is discharged through the exhaust assembly 8, forming a set of water-vapor separation condensing system.

[0045] Optionally, a second temperature probe 81 is arranged on the exhaust assembly 8, and the second temperature probe 81 is used to detect the exhaust temperature in the exhaust assembly 8 in real time. The heat exchange condensing device has a cooling fan 3, and the cooling fan 3 is used to adjust its working gear according to the exhaust temperature. In the embodiment, the cooling fan 3 can be set to gear 1 and gear 2. When it is detected that the exhaust temperature in the exhaust assembly 8 is less than a set temperature, the cooling fan 3 starts to work at gear 1, and the gear 1 of the cooling fan 3 has a lower rotating speed than the gear 2, so as to achieve an energy-saving state. Conversely, when it is detected that the exhaust temperature in the exhaust assembly 8 is greater than the set temperature, the cooling fan 3 starts to work at gear 2, and the rotating speed of the cooling fan 3 is increased, so as to quickly cool down.

[0046] Embodiment 2

[0047] Reference Figure 6 The difference between the embodiment and the embodiment 1 is that the first channel and the second channel are used for different purposes, that is, the first channel is used for passing normal-temperature water, and the second channel is used for passing high-temperature steam, and at this time, the pipeline assembly has an inner air passage and an outer water passage. In the embodiment, the inner pipe 11 is an inner steam pipe made of a heat-conducting material, the first inlet 112 is arranged at the lowest point of the inner steam pipe, and the first outlet 113 is arranged at the upper end of the inner steam pipe, so as to conform to the logic that steam rises upward. The outer pipe 12 is an outer water pipe made of a heat-conducting material or a heat-insulating material, and the second inlet 122 and the second outlet 123 are arranged at the upper and lower ends of the outer water pipe, respectively, so that the fluid flow directions of the first channel and the second channel are opposite. Of course, the second inlet 122 and the second outlet 123 can also be arranged at the lower and upper ends of the outer water pipe, respectively, so that the fluid flow directions of the first channel and the second channel are the same. When the heat exchange condensing device is applied to a cooking device, the water outlet 611 of the water tank assembly 61 is sequentially connected to the water inlet 71 of the evaporator 7 through the water pump 62 and the second channel of the heat exchange condensing device, and the exhaust port 52 is connected to the exhaust assembly 8 through the first channel of the heat exchange condensing device.

[0048] Optionally, when the outer water pipe is made of a heat-conducting material, a heat preservation layer can be additionally arranged on the outer surface of the outer water pipe, or a heat preservation layer can be additionally arranged on the outer sleeve of the pipeline assembly, so as to reduce the outward diffusion of heat. It is particularly pointed out that, since the pipeline assembly has an inner air passage and an outer water passage, the heat dissipation assembly and the cooling fan as described in the embodiment 1 can be omitted, so as to reduce the manufacturing cost.

[0049] When the high-temperature steam flows through the first channel, the high-temperature steam is cooled by the water or low-temperature steam flowing through the second channel, so as to reduce the temperature of the high-temperature steam, and solve the problem that the high-temperature steam discharged from the front of the embedded steam oven burns people. The water preheated by the high-temperature steam finally flows to the evaporator of the cooking device, so as to improve the steam output efficiency of the evaporator and reduce the energy consumption.

[0050] Embodiment 3

[0051] Reference Figure 7 The difference between the embodiment and the embodiment 1 is that the layout of the heat dissipation assembly is different. The heat dissipation assembly comprises a plurality of inner strip-shaped heat dissipation fins 21 and a plurality of outer strip-shaped heat dissipation fins 22 arranged at intervals in the circumferential direction, the inner strip-shaped heat dissipation fins 21 are vertically arranged on the inner ring of the pipeline assembly and connected or abutted with the outer side wall of the inner ring of the outer heat conduction pipe, and the outer strip-shaped heat dissipation fins 22 are vertically arranged on the outer ring of the pipeline assembly and connected or abutted with the outer side wall of the outer ring of the outer heat conduction pipe, so that the inner strip-shaped heat dissipation fins 21 and the outer strip-shaped heat dissipation fins 22 are cooperated to realize rapid cooling. Of course, all the inner strip-shaped heat dissipation fins 21 can be omitted.

[0052] Embodiment 4

[0053] Reference Figure 8 The difference between the embodiment and the embodiment 1 or 3 is that the specific structure of the heat dissipation assembly is different. The heat dissipation assembly comprises a plurality of inverted U-shaped heat dissipation fins 23 arranged at intervals in the circumferential direction, the inverted U-shaped heat dissipation fins 23 are clamped from top to bottom on the outside of the pipeline assembly, and the inverted U-shaped heat dissipation fins 23 are connected or abutted with the outer side wall of the inner ring and the outer side wall of the outer ring of the pipeline assembly respectively, so as to increase the contact area and facilitate rapid cooling.

[0054] The above only describes some embodiments of the present application. For those skilled in the art, without departing from the creative concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application.

Claims

1. A heat exchange condensing device, characterized by, The pipeline assembly comprises a spiral coil arrangement, and the pipeline assembly comprises: An inner tube (11) is spirally coiled, a first spiral flow channel (111) is formed inside the inner tube (11), a first inlet (112) and a first outlet (113) are respectively arranged at opposite ends of the inner tube (11), and the first inlet (112) and the first outlet (113) are respectively connected with the first spiral flow channel (111) to form a first channel; An outer tube (12) is spirally coiled and sleeved on the inner tube (11), a second spiral flow channel (121) is formed between the outer tube (12) and the inner tube (11), a second inlet (122) and a second outlet (123) are arranged on the outer tube (12), and the second inlet (122) and the second outlet (123) are respectively connected with the second spiral flow channel (121) to form a second channel.

2. The heat exchange condensing device according to claim 1, characterized in that, The inner tube (11) is an inner steam pipe made of heat-conducting material, the first inlet (112) is arranged at the lowest point of the inner steam pipe, and the first outlet (113) is arranged at the upper end of the inner steam pipe. The outer tube (12) is an outer water pipe made of heat-conducting material or heat-insulating material, and the second inlet (122) and the second outlet (123) are respectively arranged at the upper and lower ends of the outer water pipe or the lower and upper ends of the outer water pipe.

3. The heat exchange condensing device according to claim 1, characterized in that, The inner tube (11) is an inner water pipe made of heat-conducting material, and the first inlet (112) and the first outlet (113) are respectively arranged at the upper and lower ends of the inner water pipe or the lower and upper ends of the inner water pipe. The outer tube (12) is an outer heat-conducting tube, the second inlet (122) is arranged at the lowest point of the outer heat-conducting tube, and the second outlet (123) is arranged at the upper end of the outer heat-conducting tube.

4. The heat exchange condensing device according to claim 3, characterized in that, A heat dissipation assembly is further arranged on the inner circle and / or the outer circle of the pipeline assembly, and the heat dissipation assembly is connected with or abuts against the outer surface of the outer heat-conducting tube.

5. The heat exchange condensing device according to claim 4, characterized in that, The heat dissipation assembly comprises a plurality of inner strip-shaped heat dissipation fins (21) and / or a plurality of outer strip-shaped heat dissipation fins (22) arranged in a circumferential direction, the inner strip-shaped heat dissipation fins (21) are vertically arranged on the inner circle of the pipeline assembly and connected with or abut against the outer side wall of the inner circle of the outer heat-conducting tube, and the outer strip-shaped heat dissipation fins (22) are vertically arranged on the outer circle of the pipeline assembly and connected with or abut against the outer side wall of the outer circle of the outer heat-conducting tube.

6. The heat exchange condensing device according to claim 4, characterized in that, The heat dissipation assembly comprises a plurality of inverted U-shaped heat dissipation fins (23) arranged in a circumferential direction, the inverted U-shaped heat dissipation fins (23) are clamped from top to bottom on the outside of the pipeline assembly, and the inverted U-shaped heat dissipation fins (23) are respectively connected with or abut against the outer side wall of the inner circle and the outer side wall of the outer circle of the pipeline assembly.

7. A heat exchanging condensing device according to any one of claims 4-6, characterized in that A heat dissipation fan (3) is further arranged outside the pipeline assembly, and the air outlet direction of the heat dissipation fan (3) is towards the pipeline assembly.

8. A heat exchanging condensing device according to any one of claims 1-6, characterized in that Also included is a bracket assembly connected with the outer tube (12) of the pipeline assembly.

9. A cooking apparatus, characterized by, Comprise: The inner container assembly (5) is provided with a cooking cavity (51) with one side opening and an exhaust port (52) which is in communication with the inner container; The water tank assembly (61) is arranged on the top of the inner container assembly (5) and has a water outlet (611); The evaporator (7) is arranged outside the inner container assembly (5) and has a water inlet (71) and a steam outlet (72), which is in communication with the cooking cavity (51); The exhaust assembly (8) is arranged on the top of the inner container assembly (5) and is in communication with the external atmosphere; The heat exchange condensing device according to any one of claims 1-8 is installed outside the inner container assembly (5); The water outlet (611) is in communication with the water inlet (71) through the first channel in sequence, and the exhaust port (52) is in communication with the exhaust assembly (8) through the second channel; or the water outlet (611) is in communication with the water inlet (71) through the second channel in sequence, and the exhaust port (52) is in communication with the exhaust assembly (8) through the first channel in sequence.

10. A cooking apparatus according to claim 9, wherein A second temperature probe (81) is arranged on the exhaust assembly (8) for real-time detection of the exhaust temperature in the exhaust assembly (8), and the heat exchange condensing device has a cooling fan (3) for adjusting its working gear according to the exhaust temperature.

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