Heat exchange device and submerged combustion type gasification equipment
By designing a connected cavity structure and a flue gas distributor in the heat exchange device, efficient medium circulation and heat transfer are achieved, the problem of low heat exchange efficiency is solved, and the overall heat exchange performance is improved.
Patent Information
- Application Number
- CN202422278704.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-18
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-09-18
AI Technical Summary
In the existing heat exchange device, the heat transfer efficiency after mixing the flue gas and water is low, resulting in insufficient heat exchange efficiency and insufficient circulation power of the heat exchange medium.
A heat exchange device is designed, including a cofferdam and a flue gas distributor. The cofferdam has a first cavity and a second cavity that is connected. The flue gas distributor part is arranged in the first cavity. The high-temperature flue gas heats the medium and then is transmitted to the second cavity to heat the heat exchange coil, and is replenished through the external medium of the cofferdam to form a flowing medium circulation up and down.
The heat exchange efficiency and medium circulation power are improved, the flue gas heat is fully utilized, and the circulation effect of the heat exchange medium is enhanced.
Smart Images
Figure CN223077488U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of heat exchange devices, and particularly to a heat exchange device and a submerged combustion gasification device. Background Art
[0002] After the heat exchanger and the flue gas distributor are assembled, they are integrally installed in a water bath. Flue gas is ejected from the flue gas distributor and enters the water in the heat exchanger area. After the flue gas is quickly mixed with the water, heat is transferred to the water. The heated water and flue gas rise while transferring heat to the low-temperature medium in the heat exchanger to achieve heat exchange. However, there is a problem of low heat exchange efficiency. Summary of the Utility Model
[0003] This application provides a heat exchange device, which improves the heat exchange efficiency.
[0004] In a first aspect of this application, a heat exchange device is provided, including:
[0005] A heat exchanger, the heat exchanger includes a cofferdam and a heat exchange coil. The cofferdam has a first cavity and a second cavity arranged at intervals, the first cavity and the second cavity are communicated, and the heat exchange coil is arranged in the second cavity;
[0006] A flue gas distributor, the flue gas distributor includes a main flue gas distribution pipe, and at least a part of the main flue gas distribution pipe is arranged in the first cavity;
[0007] The flue gas distributor is used to heat the heat exchange medium located in the first cavity, and the heated heat exchange medium is transmitted from the first cavity to the second cavity to heat the heat exchange coil.
[0008] In some embodiments, the cofferdam includes a first baffle, a second baffle and a third baffle, and the first baffle, the second baffle and the third baffle are connected to each other to enclose the first cavity.
[0009] In some embodiments, the first baffle and the second baffle have an included angle α, satisfying: 90° < α ≤ 150°.
[0010] In some embodiments, the first baffle has a first length L1 along a first direction, and the first baffle has a height H along a second direction perpendicular to the first direction, satisfying: tan(α - 90) ≤ H / L2.
[0011] In some embodiments, the second baffle has a second length L2, and the main flue gas distribution pipe has a diameter D, satisfying: D / 2 ≤ L2.
[0012] In some embodiments, the third baffle is provided with a slot. The slot has a first width M1 in a first direction and a second width M2 in a second direction perpendicular to the first direction. The flue gas distribution main pipe has a diameter D, satisfying: D ≤ M1 and D / 2 ≤ M2 ≤ D.
[0013] In some embodiments, the cofferdam further includes a fourth baffle, a fifth baffle, and a sixth baffle. The fourth baffle, the fifth baffle, and the sixth baffle are connected to each other to enclose the second cavity, and the fourth baffle is connected to the first baffle.
[0014] In some embodiments, the fourth baffle has a third length L3, and the fifth baffle has a fourth length L4, satisfying: 1 / 2 ≤ (L4 - L3) / L4 ≤ 3 / 4.
[0015] In some embodiments, the flue gas distributor further includes at least one flue gas distribution branch pipe. The flue gas distribution branch pipe is connected to the flue gas distribution main pipe. The flue gas distribution branch pipe is disposed in the second cavity, and a plurality of flue gas nozzles are provided on the flue gas distribution branch pipe. The jet direction of the flue gas nozzles faces the heat exchange coil.
[0016] In some embodiments, the heat exchanger has a first base, and the flue gas distributor has a second base. The bottoms of the first base and the second base are located on the same horizontal plane.
[0017] The second aspect of the present application provides an immersion combustion gasification device, including the heat exchange device as described above.
[0018] In the present application, by making the cofferdam have a communicating first cavity and second cavity, and disposing at least part of the flue gas distribution main pipe in the first cavity, after the flue gas distributor heats the heat exchange medium in the first cavity, the heated heat exchange medium can be transmitted from the first cavity to the second cavity to heat the heat exchange coil in the second cavity, fully utilizing the heat of the flue gas distribution main pipe, thereby improving the heat exchange efficiency. Moreover, the heat exchange medium to be heated outside the cofferdam will also flow downward to supplement the heat exchange medium in the first cavity and the second cavity, improving the power of the heat exchange medium circulation and further improving the heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solutions in the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative efforts.
[0020] Figure 1It is a schematic structural diagram of the first perspective of the heat exchange device provided by the embodiment of the present application.
[0021] Figure 2 It is a schematic structural diagram of the second perspective of the heat exchange device provided by the embodiment of the present application.
[0022] Figure 3 It is a schematic structural diagram of the third perspective of the heat exchange device provided by the embodiment of the present application.
[0023] Figure 4 It is a cross-sectional view of the heat exchange device provided by the embodiment of the present application.
[0024] Figure 5 It is a schematic structural diagram of the first perspective of the cofferdam in the heat exchange device provided by the embodiment of the present application.
[0025] Figure 6 It is a schematic structural diagram of the second perspective of the cofferdam in the heat exchange device provided by the embodiment of the present application.
[0026] Figure 7 It is a schematic diagram of the circulation of the heat exchange working medium in the heat exchange device provided by the embodiment of the present application.
[0027] In the drawings, the components represented by the reference numerals are as follows:
[0028] 1. Heat exchanger; 11. Cofferdam; 100. First cavity; 200. Second cavity; 111. First baffle; 112. Second baffle; 113. Third baffle; 1131. Card slot; 114. Fourth baffle; 115. Fifth baffle; 116. Sixth baffle; 12. Heat exchange coil; 13. First base; 14. Frame; 2. Flue gas distributor; 21. Flue gas distribution main pipe; 22. Flue gas distribution branch pipe; 221. Flue gas nozzle; 23. Second base. Detailed implementation manners
[0029] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present application.
[0030] It should be noted that the serial number terms such as [First], [Second], [Third], [Fourth], etc. mentioned in this application do not represent any order, quantity or importance, but are only used to distinguish different parts. The directional terms such as [Upper], [Lower], [Left], [Right], etc. mentioned in this application are only references to the directions of the attached drawings. Therefore, the serial number terms, directional terms and positional relationship terms used are for explaining and understanding this application, rather than limiting this application. In the drawings, units with similar structures are denoted by the same reference numerals.
[0031] An embodiment of the present application provides a heat exchange device, and the present application will be described in detail below in conjunction with specific embodiments.
[0032] In a first aspect of the present application, a heat exchange device is provided, which includes a heat exchanger 1 and a flue gas distributor 2. The heat exchanger 1 includes a cofferdam 11 and heat exchange coils 12. The cofferdam 11 has a first cavity 100 and a second cavity 200 arranged at intervals, and the first cavity 100 and the second cavity 200 communicate with each other. The heat exchange coils 12 are arranged in the second cavity 200; the flue gas distributor 2 includes a flue gas distribution main pipe 21, and at least a part of the flue gas distribution main pipe 21 is arranged in the first cavity 100; the flue gas distributor 2 is used to heat the heat exchange medium located in the first cavity 100, and the heated heat exchange medium is transmitted from the first cavity 100 to the second cavity 200 to heat the heat exchange coils 12.
[0033] It can be understood that when the cofferdam 11 has only one cavity, the heat exchange coils 12 are arranged in the cavity, and the flue gas distribution main pipe 21 is arranged outside the cavity. When the flue gas distribution main pipe 21 transmits high-temperature flue gas (temperature about 1500°C), the high-temperature flue gas in the flue gas distribution main pipe 21 can transfer heat to the heat exchange medium outside the flue gas distribution main pipe 21, thereby heating the heat exchange medium, but the heated heat exchange medium cannot enter the cavity to heat the heat exchange coils 12 arranged in the cavity, resulting in heat waste; in addition, the heated heat exchange medium will rise due to the temperature increase. For example, when the heat exchange medium is water, the water will boil and rise due to the temperature increase, and the heat exchange medium to be heated outside the cofferdam 11 will flow downward to supplement the heat exchange medium in the cavity, resulting in opposite flow directions of the heat exchange medium outside the cofferdam 11, thereby causing insufficient circulating power of the heat exchange medium on the side of the flue gas distribution main pipe 21.
[0034] In this application, by making the cofferdam 11 have a connected first cavity 100 and second cavity 200, and arranging at least part of the flue gas distribution main pipe 21 in the first cavity 100, after the high-temperature flue gas in the flue gas distributor 2 heats the heat exchange medium in the first cavity 100, the heated heat exchange medium can be transmitted from the first cavity 100 to the second cavity 200 to heat the heat exchange coil 12 located in the second cavity 200, thus making full use of the heat of the high-temperature flue gas, improving the heat exchange efficiency, and the heat exchange medium to be heated outside the cofferdam 11 will also flow downward to supplement the heat exchange medium in the first cavity 100 and the second cavity 200, increasing the power of the heat exchange medium circulation and further improving the heat exchange efficiency.
[0035] In some embodiments, the flue gas distributor 2 further includes at least one flue gas distribution branch pipe 22. The flue gas distribution branch pipe 22 is connected to the flue gas distribution main pipe 21, the flue gas distribution branch pipe 22 is arranged in the second cavity 200, and a plurality of flue gas nozzles 221 are provided on the flue gas distribution branch pipe 22, and the jet direction of the flue gas nozzles 221 faces the heat exchange coil 12.
[0036] It can be understood that the high-temperature flue gas in the flue gas distribution main pipe 21 enters the flue gas distribution branch pipe 22 and is sprayed into the second cavity 200 from the flue gas nozzles 221 to heat the heat exchange medium in the second cavity 200. The two-phase mixing of the high-temperature flue gas and the heat exchange medium causes the mixing density in the second cavity 200 to decrease, and the heat exchange medium and the high-temperature flue gas are carried upward to heat the heat exchange coil 12. Finally, the heat exchange medium and the flue gas overflow from the second cavity 200, and the heat exchange medium to be heated outside the cofferdam 11 flows to supplement the heat exchange medium in the second cavity 200, forming an up-and-down flowing cycle, thereby improving the heat exchange efficiency.
[0037] In some embodiments, the material of the flue gas distribution main pipe 21 is selected from stainless steel.
[0038] It can be understood that the material of the flue gas distribution main pipe 21 is stainless steel with a high thermal conductivity. The high-temperature flue gas in the flue gas distribution main pipe 21 will quickly transfer heat to the heat exchange medium outside the flue gas distribution main pipe 21, causing the heat exchange medium outside the flue gas distribution main pipe 21 to rise after being heated. Under the action of the first cavity 100, the heated heat exchange medium is transmitted from the first cavity 100 to the second cavity 200 to heat the heat exchange coil 12, making full use of the heat of the high-temperature flue gas, thereby improving the heat exchange efficiency.
[0039] In some embodiments, the heat exchange medium is selected from water.
[0040] In some embodiments, the cofferdam 11 includes a first baffle 111, a second baffle 112, and a third baffle 113. The first baffle 111, the second baffle 112, and the third baffle 113 are connected to each other to enclose and form the first cavity 100.
[0041] It can be understood that after the flue gas distributor 2 heats the heat exchange medium in the first cavity 100, the heat exchange medium will rise after being heated. When the heated heat exchange medium rises to the first baffle 111, under the action of the first baffle 111, the second baffle 112 and the third baffle 113, it flows along the diversion direction of the first baffle 111, so as to be transferred from the first cavity 100 to the second cavity 200 to heat the heat exchange coil 12.
[0042] In some embodiments, the first baffle 111 and the second baffle 112 have an included angle α, satisfying: 90° < α ≤ 110°. Specifically, the value of the included angle α can be any one value or the range composed of any two values among 91°, 95°, 100°, 105°, 110°, 115°, 120°, 125°, 130°, 135°, 140°, 145°, 150°.
[0043] It can be understood that by controlling the included angle α between the first baffle 111 and the second baffle 112 to satisfy: 90° < α ≤ 110° in this application, an appropriate flow space can be ensured between the flue gas distribution main pipe 21 and the first cavity 100, so that the high-temperature flue gas in the flue gas distribution main pipe 21 can heat the heat exchange medium in the first cavity 100.
[0044] In some embodiments, the value of the angle is obtained by measuring with a protractor.
[0045] In some embodiments, the first baffle 111 has a first length L1 along the first direction X, and the first baffle 111 has a height H along the second direction Y perpendicular to the first direction X, satisfying: tan(α - 90) ≤ H / L2.
[0046] It can be understood that the first length L1 is the horizontal length of the first baffle 111, and the height H is the vertical height of the first baffle 111. By controlling the first length L1 and the height H to satisfy: tan(α - 90) ≤ H / L2 in this application, an appropriate flow space can be ensured between the flue gas distribution main pipe 21 and the first cavity 100, so that the high-temperature flue gas in the flue gas distribution main pipe 21 can heat the heat exchange medium in the first cavity 100, making full use of the heat of the high-temperature flue gas, thereby improving the heat exchange efficiency.
[0047] In some embodiments, the second baffle 112 has a second length L2, and the flue gas distribution main pipe 21 has a diameter D, satisfying: D / 2 ≤ L2.
[0048] It can be understood that in the present application, by making the second length L2 and the diameter D of the flue gas distribution main pipe 21 satisfy: D / 2 ≤ L2, the second baffle 112 can cover at least part of the flue gas distribution main pipe 21, so that at least part of the flue gas distribution main pipe 21 is located in the first cavity 100, so that the high-temperature flue gas in the flue gas distribution main pipe 21 can heat the heat exchange medium located in the first cavity 100, making full use of the heat of the high-temperature flue gas, thereby improving the heat exchange efficiency.
[0049] In some embodiments, the third baffle 113 is provided with a card slot 1131. The card slot 1131 has a first width M1 along the first direction X, and the card slot 1131 has a second width M2 along a second direction perpendicular to the first direction X. The flue gas distribution main pipe 21 has a diameter D, satisfying: D ≤ M1, and D / 2 ≤ M2 ≤ D.
[0050] It can be understood that the first width M1 is the horizontal width of the card slot 1131, and the second width M2 is the vertical height of the card slot 1131. In the present application, by making the third baffle 113 be provided with the card slot 1131, and making the first width M1, the second width M2 and the diameter D of the flue gas distribution main pipe 21 satisfy: D ≤ M1, and D / 2 ≤ M2 ≤ D, the card slot 1131 is adapted to the flue gas distribution main pipe 21, so that at least part of the flue gas distribution main pipe 21 is arranged in the first cavity 100, so that the high-temperature flue gas in the flue gas distribution main pipe 21 can heat the heat exchange medium located in the first cavity 100, making full use of the heat of the high-temperature flue gas, thereby improving the heat exchange efficiency.
[0051] In some embodiments, the cofferdam 11 further includes a fourth baffle 114, a fifth baffle 115 and a sixth baffle 116. The fourth baffle 114, the fifth baffle 115 and the sixth baffle 116 are connected to each other to enclose a second cavity 200, and the fourth baffle 114 is connected to the first baffle 111.
[0052] It can be understood that the fourth baffle 114 is connected to the first baffle 111, so that the first cavity 100 and the second cavity 200 can be communicated, so that the heated heat exchange medium in the first cavity 100 can be transferred from the first cavity 100 to the second cavity 200 under the guidance of the first baffle 111 to heat the heat exchange coil 12.
[0053] In some embodiments, the fourth baffle 114 has a third length L3, and the fifth baffle 115 has a fourth length L4, satisfying: 1 / 2 ≤ (L4 - L3) / L4 ≤ 3 / 4. Specifically, the ratio of (L4 - L3) / L4 can be any one value or the range composed of any two values among 1 / 2, 3 / 5, 7 / 10, 3 / 4.
[0054] It can be understood that after the high-temperature flue gas is mixed with the heat exchange medium, due to the small thermal conductivity of the gas, during the process of the mixture heating the heat exchange coil 12, it is mainly the heated heat exchange medium that heats the heat exchange coil 12. Therefore, increasing the proportion of the heat exchange medium in the high-temperature flue gas and the heat exchange medium can improve the heat exchange efficiency; the difference between the fourth length L4 and the third length L3 is the height difference between the fourth baffle 114 and the fifth baffle 115, which is also the inlet where the heat exchange medium to be heated outside the cofferdam 11 enters the second cavity 200. When the high-temperature flue gas rises with the heat exchange medium, more heat exchange medium to be heated will enter the second cavity 200, so that the proportion of the heat exchange medium in the high-temperature flue gas and the heat exchange medium can be increased, thereby improving the heat exchange efficiency.
[0055] In some embodiments, the values of the length, width and height are obtained by measuring with a tape measure.
[0056] In some embodiments, the heat exchanger 1 has a first base 13, and the flue gas distributor 2 has a second base 23. The bottoms of the first base 13 and the second base 23 are located on the same horizontal plane.
[0057] It can be understood that by making the bottoms of the first base 13 and the second base 23 be on the same horizontal plane, the heat exchanger 1 can be adapted to the flue gas distributor 2.
[0058] In some embodiments, the heat exchange coil 12 has an inlet pipeline 121 and an outlet pipeline 122. The heat exchange coil 12 is used to heat the working medium to be heated. The working medium to be heated enters the heat exchange coil 12 through the inlet pipeline 121 for heating, and the heated working medium is discharged through the outlet pipeline 122.
[0059] It can be understood that the inlet pipeline 121 is an inlet flange, the outlet pipeline 122 is an outlet flange, and the working medium to be heated is heated in the heat exchange coil 12.
[0060] In some embodiments, the working medium to be heated is selected from liquefied natural gas.
[0061] In some embodiments, the heat exchanger 1 further includes a frame 14, and the fourth baffle 114, the fifth baffle 115 and the sixth baffle 116 are connected to the frame 14.
[0062] It can be understood that the frame 14 can fix the fourth baffle 114, the fifth baffle 115 and the sixth baffle 116, so that the fourth baffle 114, the fifth baffle 115 and the sixth baffle 116 are connected to each other to enclose and form a second cavity 200.
[0063] In some embodiments, the material of the frame 14 is selected from stainless steel materials.
[0064] Working process:
[0065] The high-temperature flue gas in the flue gas distributor 2 heats the heat transfer medium in the first cavity 100. After that, the heated heat transfer medium can be transferred from the first cavity 100 to the second cavity 200 to heat the heat exchange coil 12 located in the second cavity 200. At the same time, the high-temperature flue gas entering the flue gas distribution branch pipe 22 from the flue gas distribution main pipe 21 is sprayed from the flue gas nozzle 221 into the second cavity 200 to heat the heat transfer medium in the second cavity 200. In the second cavity 200, the heat transfer medium and the high-temperature flue gas rise together to heat the heat exchange coil 12.
[0066] The second aspect of the present application provides a submerged combustion vaporizer (SCV), including the heat exchange device as described above.
[0067] In some embodiments, the submerged combustion vaporizer further includes:
[0068] A burner, which is connected to the flue gas distributor;
[0069] A water bath pool, in which the burner and the heat exchange device are arranged, and the heat transfer medium is contained in the water bath pool.
[0070] It can be understood that the high-temperature flue gas (with a temperature of about 1500 °C) generated by the combustion of the burner is transported to the flue gas distribution main pipe 21, and then enters the flue gas distribution branch pipe 22 from the flue gas distribution main pipe 21 and is sprayed into the second cavity 200 from the flue gas nozzle 221; when the high-temperature flue gas is in the flue gas distribution main pipe 21, the high-temperature flue gas located in the flue gas distribution main pipe 21 can heat the heat transfer medium in the first cavity 100, and the heated heat transfer medium is transferred from the first cavity 100 to the second cavity 200 to heat the heat exchange coil 12 located in the first cavity 100; the high-temperature flue gas sprayed from the flue gas nozzle 221 can heat the heat transfer medium in the second cavity 200, and the heat transfer medium and the high-temperature flue gas rise together to heat the heat exchange coil 12, thereby improving the heat exchange efficiency.
[0071] In summary, although the detailed description of the embodiments of the present application is as above, the above embodiments are not intended to limit the present application. Those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A heat exchange device, characterized in that, Comprising: A heat exchanger (1), the heat exchanger (1) includes a cofferdam (11) and heat exchange coils (12), the cofferdam (11) has a first cavity (100) and a second cavity (200) arranged at intervals, the first cavity (100) and the second cavity (200) communicate with each other, and the heat exchange coils (12) are arranged in the second cavity (200); A flue gas distributor (2), the flue gas distributor (2) includes a flue gas distribution main pipe (21), and at least part of the flue gas distribution main pipe (21) is arranged in the first cavity (100); The flue gas distributor (2) is used to heat the heat exchange medium located in the first cavity (100), and the heated heat exchange medium is transmitted from the first cavity (100) to the second cavity (200) to heat the heat exchange coils (12).
2. The heat exchange device according to claim 1, characterized in that, The cofferdam (11) includes a first baffle (111), a second baffle (112) and a third baffle (113), and the first baffle (111), the second baffle (112) and the third baffle (113) are connected to each other to enclose the first cavity (100).
3. The heat exchange device according to claim 2, characterized in that, The first baffle (111) and the second baffle (112) have an included angle α, satisfying: 90° < α ≤ 150°.
4. The heat exchange device according to claim 3, wherein, The first baffle (111) has a first length L1 along a first direction (X), and the first baffle (111) has a height H along a second direction (Y) perpendicular to the first direction (X), satisfying: tan(α - 90) ≤ H / L2.
5. The heat exchange device according to claim 2, characterized in that, The second baffle (112) has a second length L2, and the flue gas distribution main pipe (21) has a diameter D, satisfying: D / 2 ≤ L2.
6. The heat exchange device according to claim 2, characterized in that, The third baffle (113) is provided with a card slot (1131), the card slot (1131) has a first width M1 along the first direction (X), the card slot (1131) has a second width M2 along the second direction (Y) perpendicular to the first direction (X), and the flue gas distribution main pipe (21) has a diameter D, satisfying: D ≤ M1, and D / 2 ≤ M2 ≤ D.
7. The heat exchange device according to claim 2, characterized in that, The cofferdam (11) further includes a fourth baffle (114), a fifth baffle (115) and a sixth baffle (116), and the fourth baffle (114), the fifth baffle (115) and the sixth baffle (116) are connected to each other to enclose the second cavity (200), and the fourth baffle (114) is connected to the first baffle (111).
8. The heat exchange device according to claim 7, characterized in that, The fourth baffle (114) has a third length L3, and the fifth baffle (115) has a fourth length L4, satisfying: 1 / 2 ≤ (L4 - L3) / L4 ≤ 3 / 4.
9. The heat exchange device according to claim 1, wherein, The flue gas distributor (2) further includes at least one flue gas distribution branch pipe (22), the flue gas distribution branch pipe (22) is connected to the flue gas distribution main pipe (21), the flue gas distribution branch pipe (22) is arranged in the second cavity (200), and a plurality of flue gas nozzles (221) are arranged on the flue gas distribution branch pipe (22), and the jet direction of the flue gas nozzles (221) faces the heat exchange coils (12).
10. The heat exchange device according to claim 1, wherein, The heat exchanger (1) has a first base (13), the flue gas distributor (2) has a second base (23), and the bottoms of the first base (13) and the second base (23) are located on the same horizontal plane.
11. An immersion combustion gasification device, characterized in that, It includes the heat exchange device according to any one of claims 1 to 10.