Steam heat accumulator with high heat exchange efficiency

Abstract

The invention relates to the technical field of steam heat accumulators, in particular to a steam heat accumulator with high heat exchange efficiency, which comprises a heat accumulator outer cabin, a heat insulation assembly arranged in the heat accumulator outer cabin, and a liquid exchange mechanism arranged at the bottom of the heat insulation assembly, the air exchange mechanism is arranged at the top of the heat insulation assembly; the heat exchange assemblies are mounted in the liquid exchange mechanism and the air exchange mechanism; the heat accumulator outer cabin comprises a steam input pipe used for inputting high-temperature steam flow. An existing mode that heat exchange is conducted through outflow along fins of the heat exchanger is set into a built-in circulation heat exchange mode, the heat exchange assembly of a double-cavity structure is communicated with the liquid exchange assembly and the air exchange assembly, and after high-temperature steam flow enters an inner cavity of the heat exchange assembly along the air exchange assembly, the steam can be divided into multiple strands to sufficiently supply heat to a liquid storage part; therefore, heat energy loss caused by temperature difference inside and outside the outer cabin of the heat accumulator can be avoided by the concentrated circulating steam flow.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of steam accumulator, in particular to a steam accumulator with high heat exchange efficiency. BACKGROUND

[0002] The steam accumulator is a variable pressure regulating device used for balancing the steam load fluctuation in the field of thermal power generation. The stability of the heat supply system is achieved mainly through water container heat storage. The water is used as the heat storage medium. The steam load fluctuation is balanced through the charging and discharging processes.

[0003] The common horizontal steam accumulator has certain drawbacks in actual use. Since the heat exchanger inside the horizontal steam accumulator is in an exposed state, when the high-temperature steam enters the inner cavity of the tank, the steam will flow through the fins of the heat exchanger in the inner cavity of the tank. This outflow mode will cause the loss of part of the heat energy due to the temperature difference between the inside and outside of the tank. At the same time, the heating speed of the water is slow. Once the steam flow decreases, the solution temperature will decrease and the flow rate will increase. In order to solve the above-mentioned drawbacks, the existing horizontal tank needs to optimize the heat preservation effect of the tank. However, such optimization will further increase the production cost of the horizontal accumulator.

[0004] In view of this, a steam accumulator with high heat exchange efficiency is designed to solve the above-mentioned problems. SUMMARY

[0005] The present application aims to solve one of the technical problems existing in the prior art or related art.

[0006] To this end, the technical solution adopted by the present application is as follows: A steam accumulator with high heat exchange efficiency, comprising an accumulator outer cabin, a heat insulation assembly arranged in the accumulator outer cabin, a liquid changing mechanism installed at the bottom of the heat insulation assembly, a gas changing mechanism arranged at the top of the heat insulation assembly, and a plurality of heat exchange assemblies installed in the liquid changing mechanism and the gas changing mechanism; the accumulator outer cabin comprises a steam input pipe for inputting high-temperature steam flow; the gas changing mechanism comprises a plurality of top guide pipes, a first sequential gas feeding pipe connected to the other end of the steam input pipe, two top end face gas covers fixedly installed at both ends of the first sequential gas feeding pipe, a plurality of top drainage gas covers arranged between the two top end face gas covers and fixedly installed on the first sequential gas feeding pipe; the heat exchange assembly comprises a top cover, and the top end face gas cover and the top drainage gas cover are connected to the top cover through the top guide pipe; a top sealing disc is fixedly installed in the top cover; an outer pipe is installed at the bottom of the top cover; an inner pipe is sleeved in the middle of the inner cavity of the outer pipe; and a liquid storage cavity is arranged between the outer pipe and the inner pipe; the bottom cover comprises a bottom cover fixedly installed at the bottom of the outer pipe and the inner pipe, and a bottom sealing disc fixedly installed in the bottom cover; an input hole and an output hole are formed in the inner wall of the bottom cover; a pipe section of a liquid feeding pipe is installed in the input hole; a pipe section of a liquid discharging pipe is installed in the output hole; the liquid feeding pipe is used for supplying liquid to the liquid storage cavity; and the liquid discharging pipe is used for discharging liquid from the liquid storage cavity.

[0007] The application can be further configured in a preferred example that the heat insulation assembly comprises two first corner guards and two second corner guards, and the two first corner guards and the two second corner guards are respectively arranged at four corners of the array, the end face guard is arranged between the gaps between the adjacent second corner guard and the first corner guard, and the first side edge guard and the second side edge guard are arranged between the gaps between the adjacent two outer pipes.

[0008] The application can be further configured in a preferred example that the heat insulation assembly further comprises a plurality of pipe gap guards, and the pipe gap guards are used to provide effective support for the adjacent four outer pipes and to supply heat to the adjacent four outer pipes.

[0009] The application can be further configured in a preferred example that the liquid changing mechanism further comprises two first bottom corner air covers and two second bottom corner air covers, the first bottom corner air cover is fixedly installed at the bottom end of the second corner guard, the second bottom corner air cover is fixedly installed at the bottom end of the first corner guard, the bottom end face air cover is arranged between the gaps between the adjacent first bottom corner air cover and the second bottom corner air cover, and the first bottom edge air cover and the second bottom edge air cover are arranged between the gaps between the adjacent two outer pipes.

[0010] The application can be further configured in a preferred example that the first bottom edge air cover is fixedly installed at the bottom of the second side edge guard, and the second bottom edge air cover is fixedly installed at the bottom of the first side edge guard.

[0011] The application can be further configured in a preferred example that the liquid changing mechanism further comprises a plurality of bottom-arranged drainage air covers, the bottom-arranged drainage air covers are fixedly installed at the bottom of the pipe gap guard, and the bottom-arranged drainage air covers, the first bottom edge air cover, the second bottom edge air cover, the first bottom corner air cover, the second bottom corner air cover, the bottom end face air cover, and the bottom-arranged drainage air cover are all fixedly installed with a bottom guide pipe, and the bottom guide pipe is communicated with the bottom cover.

[0012] The application can be further configured in a preferred example that one side of the top end face air cover is provided with a first top corner air cover, and the other side of the top end face air cover is provided with a second top corner air cover, and the number of the first top corner air cover and the second top corner air cover is two. The first top corner air cover is fixedly installed at the top end of the second corner guard, and the second top corner air cover is fixedly installed at the top end of the first corner guard.

[0013] The application can be further configured in a preferred example that the two sides of the top-arranged drainage air cover are provided with symmetrically distributed first top edge air covers and second top edge air covers, the first top edge air cover is fixedly installed at the top end of the second side edge guard, and the second top edge air cover is fixedly installed at the top end of the first side edge guard.

[0014] In a preferred embodiment, the present invention may be further configured such that the ventilation mechanism further includes a second sequential air supply pipe, and the second sequential air supply pipe is connected to the first apex air hood, the second apex air hood, the first top edge air hood and the second top edge air hood, for collecting and transmitting the steam flow of residual heat energy.

[0015] In a preferred embodiment, the invention may be further configured such that the outer tube is made of copper and the inner tube is made of aluminum alloy, and the outer tube and the inner tube have the same wall thickness.

[0016] By adopting the above technical solution, the beneficial effects achieved by the present invention are as follows: 1. This invention replaces the existing heat exchange method of flowing outward along the heat exchanger fins with an internal circulation heat exchange method. It utilizes a dual-cavity heat exchange component connected to a liquid exchange component and a gas exchange component. When the high-temperature steam flows into the inner cavity of the heat exchange component along the gas exchange component, the steam can be divided into multiple streams to fully heat the liquid storage part. At this time, the centralized circulation of steam can avoid the problem of heat loss caused by the temperature difference between the inside and outside of the heat accumulator.

[0017] 2. This invention sets the fins of the existing single-tube liquid storage as an inner tube and an outer tube in a set structure, and reserves a liquid storage cavity between the inner tube and the outer tube. When a large flow of steam is concentrated in the inner tube cavity and multiple branched steam flows provide comprehensive heating along the outer tube, the solution with the increased heating area of ​​the liquid storage cavity can be rapidly heated. Even if the steam flow rate decreases, the heat insulation component set on the outermost part of the outer tube can work with the steam heat energy of the inner tube cavity to maintain a constant solution temperature in the liquid storage cavity.

[0018] 3. This invention uses a top-mounted air hood, a top-side air hood, a bottom-mounted air hood, and a bottom-side air hood to centrally pressurize and supply air into a uniformly distributed inner tube cavity. At this time, the inner tube can be in a state of efficient heat exchange. While the pressure in the inner tube cavity is constant, the flow rate of the multiple streams of steam transferred by the branches can be maintained at a constant state. After being transferred to multiple inner cavities of the protective pads, the outer wall of the outer tube can be continuously heated, thereby increasing the rate of temperature rise of the solution in the storage cavity. Attached Figure Description

[0019] Figure 1 This is a schematic diagram illustrating the use of the present invention; Figure 2 This is a partial perspective view of the present invention; Figure 3 For the present invention Figure 2 A partial schematic diagram; Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle; Figure 5 This is an exploded schematic diagram of the ventilation mechanism of the present invention; Figure 6The explosion schematic diagram of the liquid changing mechanism of the application; Figure 7 The explosion schematic diagram of the heat insulation assembly and the heat exchanging assembly of the application.

[0020] Reference signs: 100, outer tank of heat accumulator; 110, steam input pipe; 200, heat insulation assembly; 210, first corner gasket; 2101, second corner gasket; 220, end face gasket; 230, first side edge gasket; 2301, second side edge gasket; 240, pipe gap gasket; 300, liquid changing mechanism; 310, bottom cover; 3101, input hole; 3102, output hole; 320, liquid delivery pipe; 330, liquid discharge pipe; 340, bottom sealing disc; 350, first bottom edge air cover; 3501, second bottom edge air cover; 360, first bottom corner air cover; 3601, second bottom corner air cover; 370, bottom end face air cover; 3701, bottom drainage air cover; 380, bottom guide pipe; 400, air changing mechanism; 410, first top corner air cover; 4101, second top corner air cover; 420, first top edge air cover; 4201, second top edge air cover; 430, top end face air cover; 4301, top drainage air cover; 440, top guide pipe; 450, first order air delivery pipe; 460, second order air delivery pipe; 500, heat exchanging assembly; 510, top cover; 520, top sealing disc; 530, outer pipe; 540, inner pipe; 550, liquid storage cavity. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the application more clear and obvious, the application is further described in detail below in combination with specific embodiments and with reference to the drawings. It should be noted that the embodiments of the application and the features in the embodiments can be combined with each other without conflict.

[0022] It is understood that the above description is only exemplary and is not intended to limit the scope of the application.

[0023] Some embodiments of the application provide a high-heat-exchange-efficiency steam heat accumulator.

[0024] Embodiment 1: In combination with Figures 1 to 7As shown, the application provides a steam heat accumulator with high heat exchange efficiency, which comprises a heat accumulator outer cabin 100, a heat insulation assembly 200 arranged in the heat accumulator outer cabin 100, a liquid exchange mechanism 300 arranged at the bottom of the heat insulation assembly 200, an air exchange mechanism 400 arranged at the top of the heat insulation assembly 200, and a plurality of heat exchange assemblies 500 arranged in the liquid exchange mechanism 300 and the air exchange mechanism 400. The heat insulation assembly 200 is used to provide further heat supply for the plurality of heat exchange assemblies 500 and enhance the persistence of the heat energy of the solution in the plurality of heat exchange assemblies 500. The liquid exchange mechanism 300 is used to provide an ordered conversion path for the solution in the plurality of heat exchange assemblies 500 and enhance the constancy of the pressure of the high-temperature steam in the plurality of heat exchange assemblies 500. The air exchange mechanism 400 is used to control the input and output of the built-in high-temperature steam and cooperate with the liquid exchange mechanism 300 to implement internal circulation heat exchange for the plurality of heat exchange assemblies 500.

[0025] The heat accumulator outer cabin 100 comprises a steam input pipe 110 for inputting high-temperature steam. The air exchange mechanism 400 comprises a plurality of top guide pipes 440, a first sequential air supply pipe 450 connected to the other end of the steam input pipe 110, two top end face air covers 430 fixedly arranged at the two ends of the first sequential air supply pipe 450, and a plurality of top drainage air covers 4301 arranged between the two top end face air covers 430 and fixedly arranged on the first sequential air supply pipe 450. The heat exchange assembly 500 comprises a top cover 510, and the top end face air cover 430 and the top drainage air cover 4301 are connected to the top cover 510 through the top guide pipe 440. The top cover 510 is fixedly arranged with a top sealing disc 520, and the bottom of the top cover 510 is arranged with an outer pipe 530. The inner cavity of the outer pipe 530 is sleeved with an inner pipe 540 at the middle part, and a liquid storage cavity 550 is arranged between the outer pipe 530 and the inner pipe 540. The liquid exchange mechanism 300 comprises a bottom cover 310 arranged at the bottom of the outer pipe 530 and the inner pipe 540, and a bottom sealing disc 340 fixedly arranged in the bottom cover 310. The inner wall of the bottom cover 310 is provided with an input hole 3101 and an output hole 3102. A pipe section of a liquid supply pipe 320 is arranged in the input hole 3101, and a pipe section of a liquid discharge pipe 330 is arranged in the output hole 3102. The liquid supply pipe 320 is used to supply liquid to the liquid storage cavity 550, and the liquid discharge pipe 330 is used to discharge liquid from the liquid storage cavity 550. The heat insulation assembly 200 comprises two first corner protective pads 210, two second corner protective pads 2101, and a plurality of pipe gap protective pads 240. The two first corner protective pads 210 and the two second corner protective pads 2101 are respectively arranged at the four corners of the array. An end face protective pad 220 is arranged between the gap between the adjacent second corner protective pad 2101 and the first corner protective pad 210. A first side edge protective pad 230 and a second side edge protective pad 2301 are arranged between the gap between the adjacent two outer pipes 530. The tube gap protection pad 240 is used to provide effective support for the adjacent four outer tubes 530 and to concentrate heat supply to the adjacent four outer tubes 530. The outer tube 530 is made of copper material, the inner tube 540 is made of aluminum alloy material, and the wall thickness of the outer tube 530 and the inner tube 540 is the same.

[0026] When the steam input pipe 110 inputs high-temperature steam into the inside of the first order gas delivery pipe 450, the gas flow is transferred along the multiple tube segments at the bottom of the first order gas delivery pipe 450 into the two top end face gas covers 430 and the multiple top placed drainage gas covers 4301, and the top end face gas cover 430 and the top placed drainage gas cover 4301 are communicated with the top cover 510 through the top guide pipe 440, so that part of the high-temperature gas flow directly flows into the top cover 510 and the inner cavity of the inner tube 540 as the continuous input of the gas flow, at this time, the steam heat energy flowing into the inner cavity of the inner tube 540 directly radiates to the inner wall of the inner tube 540, and the bottom end of the inner tube 540 is fixed with the bottom cover 310, and the gas flow transferred through the inner cavity of the inner tube 540 and downwardly transferred is guided outwardly along the bottom cover 310 and the bottom guide pipe 380, and this process can directly implement the inner circulation of the high-temperature steam and rapidly heat the solution stored in the liquid storage cavity 550, and the area of the solution in the liquid storage cavity 550 is increased due to the inner tube 540 and the outer tube 530, so that the heating speed of the solution is effectively improved.

[0027] Preferably, the top placed drainage gas cover 4301 and the bottom placed drainage gas cover 3701 have the same structure, and the top end face gas cover 430 and the bottom end face gas cover 370 have the same structure, and after the two top end face gas covers 430 and the multiple top placed drainage gas covers 4301 are connected with the first order gas delivery pipe 450, they are used to concentrate gas supply to the multiple tube gap protection pads 240 and the two end face protection pads 220, and the transmission of the branched and multiple gas flows is realized by means of the top cover 510 and the bottom cover 310, so that the first corner protection pad 210, the second corner protection pad 2101, the first side edge protection pad 230 and the second side edge protection pad 2301 at the outermost periphery of the outer tube 530 can maintain a constant flow rate and a constant temperature, and the uniform heating of the outer wall of the outer tube 530 is ensured.

[0028] Example 2: In combination Figures 5 to 7 As shown in the embodiment 1, the liquid changing mechanism 300 further includes two first bottom corner gas covers 360, two second bottom corner gas covers 3601 and multiple bottom placed drainage gas covers 3701, the first bottom corner gas cover 360 is fixedly installed at the bottom end of the second corner protection pad 2101, the second bottom corner gas cover 3601 is fixedly installed at the bottom end of the first corner protection pad 210, the bottom end face gas cover 370 is arranged between the gaps between the adjacent first bottom corner gas cover 360 and the second bottom corner gas cover 3601, and the first bottom edge gas cover 350 and the second bottom edge gas cover 3501 are arranged between the gaps between the adjacent two outer tubes 530. The first bottom air cover 350 is fixedly installed at the bottom of the second side protective pad 2301, and the second bottom air cover 3501 is fixedly installed at the bottom of the first side protective pad 230; The bottom drainage air cover 3701 is fixedly installed at the bottom of the gap protective pad 240, and the bottom drainage air cover 3701, the first bottom air cover 350, the second bottom air cover 3501, the first bottom corner air cover 360, the second bottom corner air cover 3601 and the bottom end surface air cover 370 are all fixedly installed with the bottom guide pipe 380, and the bottom guide pipe 380 is communicated with the bottom cover 310.

[0029] Preferably, the outer walls of the first corner protective pad 210, the second corner protective pad 2101 and the end surface protective pad 220 are thickened to 3 cm, and the outer surfaces of the first corner protective pad 210, the second corner protective pad 2101 and the end surface protective pad 220 are coated with a heat preservation coating for reducing the speed of heat energy dissipation on the surface of the outer tube 530. Specifically, the first bottom corner air cover 360, the second corner protective pad 2101 and the first top corner air cover 410 constitute a heat exchange module at one corner, and similarly, the second bottom corner air cover 3601, the first corner protective pad 210 and the second top corner air cover 4101 constitute a heat exchange module at another corner, and the bottom end surface air cover 370, the end surface protective pad 220 and the top end surface air cover 430 are used for high-temperature sealing of the two heat exchange modules and enhancing the heating speed of the two outer tubes 530 at the outermost periphery.

[0030] Embodiment 3: In combination Figures 5 to 7 As shown in the above embodiment, the air exchange mechanism 400 further includes a second sequential air supply pipe 460, the two sides of the top drainage air cover 4301 are provided with symmetrically distributed first top edge air covers 420 and second top edge air covers 4201, the first top edge air cover 420 is fixedly installed at the top end of the second side protective pad 2301, and the second top edge air cover 4201 is fixedly installed at the top end of the first side protective pad 230; and the second sequential air supply pipe 460 is communicated with the first top corner air cover 410, the second top corner air cover 4101, the first top edge air cover 420 and the second top edge air cover 4201, and is used for converging and transmitting the steam flow of the remaining heat energy. One side of the top end surface air cover 430 is provided with the first top corner air cover 410, and the other side of the top end surface air cover 430 is provided with the second top corner air cover 4101, and the number of the first top corner air cover 410 and the second top corner air cover 4101 is both two. The first top corner air cover 410 is fixedly installed at the top end of the second corner protective pad 2101, and the second top corner air cover 4101 is fixedly installed at the top end of the first corner protective pad 210.

[0031] When the first order gas pipe 450 outputs the high-temperature steam flow from the plurality of bottom drainage gas cover 3701 and the two bottom end surface gas cover 370, the gas flow will be divided into multiple streams and drained into the outer tube 530, the tube gap pad 240 and the end surface pad 220 inner cavity, and combined with the further shunting of the top cover 510 and the bottom cover 310, the first corner pad 210, the second corner pad 2101, the first side pad 230, the second side pad 2301 and the tube gap pad 240 outside the plurality of outer tubes 530 can be matched with the outer tube 530 to form an effective passage for internal circulation, which can finally improve the heat exchange efficiency and reduce the heat energy loss.

[0032] The working principle and use process of the present application are as follows: Figure 2 The heat exchange module cross-section structure in the heat accumulator shown in the following figure is taken as an example. In use, the steam input pipe 110 is connected with the external pipeline, and the outer end of the first order gas pipe 450 is connected with the other end of the steam input pipe 110. As the high-temperature steam is transported along the steam input pipe 110 to the inside of the first order gas pipe 450, the branch pipe section on the first order gas pipe 450 will shunt the high-temperature steam, and the shunted high-temperature steam will be output along the two top end surface gas covers 430 and the plurality of top drainage gas covers 4301 in turn. The two top end surface gas covers 430 and the plurality of top drainage gas covers 4301 are connected with the inner cavity of the top cover 510 through the top guide pipe 440. Therefore, as the two top end surface gas covers 430 and the plurality of top drainage gas covers 4301 continuously output the high-temperature steam, the steam will flow into the cavities on the top of the two end surface pads 220 and the plurality of tube gap pads 240, and finally the gas flow will flow downward along the cavities on the top of the end surface pads 220 and the tube gap pads 240. In this process, the heat energy in the steam will radiate to the outer walls of the plurality of outer tubes 530 around the two end surface pads 220 and the plurality of tube gap pads 240. When the end face protective pad 220 and the pipe gap protective pad 240 continue to flow, the gas flow will flow into the two bottom end face gas covers 370 and the plurality of bottom guiding gas covers 3701, and the two bottom end face gas covers 370 and the plurality of bottom guiding gas covers 3701 are communicated with the inner cavity of the bottom cover 310 through the bottom guide pipe 380, so that the gas flow entering the inner cavity of the bottom cover 310 is divided into a plurality of streams, wherein the high-temperature steam with the largest flow rate enters the inner cavity of the inner pipe 540, and the remaining steam flows are transferred to the inside of the first bottom corner gas cover 360, the second bottom corner gas cover 3601, the first bottom edge gas cover 350, and the second bottom edge gas cover 3501. Since the first bottom corner gas cover 360 is connected with the first top corner gas cover 410 through the second corner protective pad 2101, the second bottom corner gas cover 3601 is connected with the second top corner gas cover 4101 through the first corner protective pad 210, the first bottom edge gas cover 350 is connected with the first top edge gas cover 420 through the second side edge protective pad 2301, and the second bottom edge gas cover 3501 is connected with the second top edge gas cover 4201 through the first side edge protective pad 230, the high-temperature steam after the plurality of streams is divided can be guided at the same time in cooperation with the large flow rate gas flow in the inner cavity of the inner pipe 540; In addition, the top guiding gas cover 4301 and the bottom guiding gas cover 3701 are communicated with the inner cavity of the inner pipe 540, so that the large flow rate steam forms a turbulent flow in the inner cavity of the inner pipe 540, so that the outer wall of the outer pipe 530 can also be continuously and constantly radiated at a constant temperature while ensuring the constant thermal energy of the whole inner pipe 540. Finally, the steam will converge in the second sequential gas conveying pipe 460 along the first top corner gas cover 410, the second top corner gas cover 4101, the first top edge gas cover 420, and the second top edge gas cover 4201. At this time, the steam with the remaining heat energy can be transferred to the next link for reuse. This way reduces the problem of excessive heat energy loss caused by traditional gas flow outward guidance. By increasing the liquid heating area and improving the flow rate and heat exchange area of the gas flow guidance, the efficiency of heat exchange is improved, and the built-in heat exchange mode can further reduce the corrosion of high-temperature steam flow to components other than the heat exchanger.

[0033] Although embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, replacements, and variations can be made to these embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A steam accumulator with high heat exchange efficiency, comprising an accumulator outer tank (100), characterized in that, The heat accumulator further comprises a heat insulation assembly (200) arranged in the outer cabin (100), a liquid changing mechanism (300) arranged at the bottom of the heat insulation assembly (200), an air changing mechanism (400) arranged at the top of the heat insulation assembly (200), and a plurality of heat exchange assemblies (500) arranged in the liquid changing mechanism (300) and the air changing mechanism (400); The outer cabin (100) comprises a steam input pipe (110) for inputting high-temperature steam flow. The air changing mechanism (400) comprises a plurality of top guide pipes (440), a first sequential air feeding pipe (450) connected to the other end of the steam input pipe (110), two top end face air covers (430) fixedly arranged at the two ends of the first sequential air feeding pipe (450), and a plurality of top flow guide air covers (4301) arranged between the two top end face air covers (430). The heat exchange assembly (500) comprises a top cover (510), the top end face air cover (430) and the top flow guide air cover (4301) are connected to the top cover (510) through the top guide pipe (440), the top cover (510) is fixedly arranged with a top sealing disc (520), the bottom of the top cover (510) is arranged with an outer pipe (530), the inner cavity of the outer pipe (530) is sleeved with an inner pipe (540), and a liquid storage cavity (550) is arranged between the outer pipe (530) and the inner pipe (540).

2. The high heat exchange efficiency steam accumulator according to claim 1, characterized in that, The heat insulation assembly (200) comprises two first corner protective pads (210) and two second corner protective pads (2101), the two first corner protective pads (210) and the two second corner protective pads (2101) are respectively arranged at the four corners of the array, an end face protective pad (220) is arranged between the gap between the adjacent second corner protective pad (2101) and the first corner protective pad (210), a first side edge protective pad (230) and a second side edge protective pad (2301) are arranged between the gap between the adjacent two outer pipes (530).

3. The high heat exchange efficiency steam accumulator according to claim 1, characterized in that, The heat insulation assembly (200) further comprises a plurality of pipe gap protective pads (240), and the pipe gap protective pads (240) are used for providing effective support for the adjacent four outer pipes (530) and supplying heat to the adjacent four outer pipes (530).

4. The high heat exchange efficiency steam accumulator according to claim 1, characterized in that, The liquid changing mechanism (300) comprises a bottom cover (310) arranged at the bottom of the outer pipe (530) and the inner pipe (540), and a bottom sealing disc (340) fixedly arranged in the bottom cover (310); The inner wall of the bottom cover (310) is provided with an input hole (3101) and an output hole (3102), a pipe section of a liquid feeding pipe (320) is arranged in the input hole (3101), and a pipe section of a liquid discharging pipe (330) is arranged in the output hole (3102).

5. The high heat exchange efficiency steam accumulator according to claim 1, characterized in that, The liquid changing mechanism (300) further comprises two first bottom corner air covers (360) and two second bottom corner air covers (3601), the first bottom corner air covers (360) are fixedly installed at the bottom end of the second corner protective pads (2101), the second bottom corner air covers (3601) are fixedly installed at the bottom end of the first corner protective pads (210), the bottom end surface air covers (370) are arranged between the gaps between the adjacent first bottom corner air covers (360) and the second bottom corner air covers (3601), the first bottom edge air covers (350) and the second bottom edge air covers (3501) are arranged between the gaps between the adjacent two outer pipes (530).

6. The high heat exchange efficiency steam accumulator according to claim 5, characterized in that, The first bottom edge air covers (350) are fixedly installed at the bottom of the second side edge protective pads (2301), and the second bottom edge air covers (3501) are fixedly installed at the bottom of the first side edge protective pads (230).

7. The high heat exchange efficiency steam accumulator according to claim 1, characterized in that, The liquid changing mechanism (300) further comprises a plurality of bottom placing drainage air covers (3701), the bottom placing drainage air covers (3701) are fixedly installed at the bottom of the pipe gap protective pads (240), and the bottom placing drainage air covers (3701), the first bottom edge air covers (350), the second bottom edge air covers (3501), the first bottom corner air covers (360), the second bottom corner air covers (3601), the bottom end surface air covers (370) and the bottom guide pipes (380) are fixedly installed at the bottom cover (310).

8. The high heat exchange efficiency steam accumulator according to claim 1, characterized in that, The top end surface air covers (430) are provided with the first top corner air covers (410) on one side, and the second top corner air covers (4101) on the other side, and the number of the first top corner air covers (410) and the second top corner air covers (4101) is two. The first top corner air covers (410) are fixedly installed at the top end of the second corner protective pads (2101), and the second top corner air covers (4101) are fixedly installed at the top end of the first corner protective pads (210).

9. The high heat exchange efficiency steam accumulator according to claim 1, characterized in that, The top placing drainage air covers (4301) are provided with the first top edge air covers (420) and the second top edge air covers (4201) which are symmetrically distributed on both sides, the first top edge air covers (420) are fixedly installed at the top end of the second side edge protective pads (2301), and the second top edge air covers (4201) are fixedly installed at the top end of the first side edge protective pads (230).

10. The high heat exchange efficiency steam accumulator according to claim 1, characterized in that, The gas changing mechanism (400) further comprises a second sequence gas conveying pipe (460), and the second sequence gas conveying pipe (460) is communicated with the first top corner air covers (410), the second top corner air covers (4101), the first top edge air covers (420) and the second top edge air covers (4201), and is used for converging and transmitting the steam flow of the remaining heat energy.

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