Quick-release mechanism and thermal power plant flue gas waste heat recycling device

Through the quick-disassembly mechanism and the flue gas waste heat recovery and utilization device of the thermal power plant, the problems of inconvenient cleaning of the adsorption plate and harmful components in the flue gas are solved, the convenient disassembly of the adsorption plate and the efficient treatment of the flue gas are realized, and the waste heat utilization efficiency and environmental protection effect are improved.

WO2025195188A1PCT designated stage Publication Date: 2025-09-25HUANENG (FUJIAN) ENERGY DEVELOPMENT LIMITED COMPANY FUZHOU BRANCH
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Patent Information

Application Number
PCT/CN2025/081057
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-03-18
Filing Date
2025-03-06
Publication Date
2025-09-25

AI Technical Summary

Technical Problem

In existing flue gas waste heat recovery devices, harmful components condense on the adsorption disk, making it difficult to clean. In addition, the flue gas contains harmful components and sulfur, which is not conducive to the efficient use of waste heat.

Method used

A quick-disassembly mechanism was designed, including a disassembly component and a flue gas waste heat recovery and utilization device for a thermal power plant. The adsorption plate can be conveniently disassembled and replaced by rotating bolts and elastic parts, and the flue gas can be treated in combination with a desulfurization component and a desulfurization component.

Benefits of technology

It realizes convenient cleaning and replacement of the adsorption disk, improves the waste heat recovery efficiency, reduces the mixing hazards of harmful components, and promotes industrial sustainable development and environmental awareness.

✦ Generated by Eureka AI based on patent content.

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    Figure CN2025081057_25092025_PF_FP_ABST
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Abstract

The present utility model relates to the technical field of waste heat recycling, and in particular to a quick-release mechanism and a thermal power plant flue gas waste heat recycling device. The quick-release mechanism comprises a dismounting assembly, wherein the dismounting assembly comprises a reaction tank, an adsorption disc arranged inside the reaction tank, a fixed member arranged on the inner wall of the reaction tank, and a movable member arranged on one side of the fixed member. According to the present utility model, by providing the dismounting assembly and further rotating a bolt, a clamping plate can fix the adsorption disc under the action of an elastic member; and the adsorption disc can be removed by rotatably loosening the bolt and moving the clamping plate, so that the adsorption disc can be cleaned and replaced. In addition, a de-plume assembly is provided, and a fan suctions flue gas into the reaction tank, so that an FL coupled demister and the adsorption disc perform de-plume treatment on the flue gas, to treat particles in the flue gas, thus removing harmful components in the flue gas; and a desulfurization assembly condenses and collects the gas having undergone the de-plume treatment, thereby improving the energy utilization efficiency.
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Description

A quick-disassembly mechanism and a device for recovering and utilizing waste heat from flue gas in a thermal power plant Technical Field

[0001] The utility model relates to the technical field of waste heat recovery and utilization, in particular to a quick-disassembly mechanism and a device for recovering waste heat from flue gas in a thermal power plant. Background Art

[0002] Thermal power generation is currently the most commonly used method of power generation. It uses the heat energy generated by the combustion of combustibles and converts it into electrical energy through a power generation device. The flue gas produced by combustion has a high temperature. Generally, the flue gas is only simply treated and then discharged. The energy is not fully utilized, resulting in waste.

[0003] However, when the existing flue gas recovery and utilization device filters the flue gas, harmful components condense on the adsorption disk, which is inconvenient to clean. The adsorption disk needs to be disassembled, cleaned or replaced to remove the harmful components. In addition, the flue gas contains harmful components and a large amount of sulfur, which is not conducive to the recovery and utilization of waste heat. Based on the above problems, we propose a quick-disassembly mechanism and a flue gas waste heat recovery and utilization device for a thermal power plant.

[0004] Utility Model Content

[0005] In view of the above-mentioned technical problem that harmful components condense on the adsorption disk and the adsorption disk needs to be disassembled for cleaning, a quick-disassembly mechanism is proposed.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a quick-release mechanism, which includes a disassembly assembly, including a reaction tank, an adsorption plate arranged inside the reaction tank, a fixing part arranged on the inner wall of the reaction tank and a movable part arranged on one side of the fixing part; the fixing part includes a support plate arranged on the inner wall of the reaction tank, a movable groove is opened on the outer wall of the support plate, and a stabilizing block is provided on the outer wall of the support plate.

[0007] As a preferred solution of the quick-release mechanism of the present invention, the end face of the stabilizing block is provided with a movable channel, a fixed column is provided inside the movable channel, the movable part includes a splint provided inside the movable channel, a movable groove is provided on the outer wall of the splint, and the movable groove is movably engaged with the fixed column.

[0008] As a preferred solution of the quick-release mechanism of the present invention, a bolt is provided through the end surface of the clamping plate, and the bolt is movably engaged with the movable groove, and an elastic member is sleeved on the outer wall of the bolt.

[0009] The beneficial effect of the quick-release mechanism of the present invention is as follows: by arranging an adsorption disk in the reaction tank, the bolt is rotated, and under the action of the elastic member, the splint can fix the adsorption disk, and the bolt is rotated to loosen and the splint is moved to remove the adsorption disk, thereby facilitating the cleaning and replacement of the adsorption disk.

[0010] In view of the problem that the flue gas contains a large amount of sulfur, which is not conducive to the recovery and utilization of waste heat, a device for recovering and utilizing waste heat from flue gas in a thermal power plant is proposed.

[0011] In order to solve the above technical problems, the present invention also provides the following technical solutions: a flue gas waste heat recovery and utilization device for a thermal power plant, which includes a quick-release mechanism; and a desulfurization component, including a FL coupled demister arranged inside the reaction tank, a support member arranged outside the FL coupled demister, a transmission member arranged outside the support member, and an output member arranged outside the support member; a chimney component, including a chimney body and a base arranged at the bottom of the chimney body; a desulfurization component, including an emission member, a collecting member arranged below the emission member, a connecting member arranged on the side wall of the emission member, and a stabilizing member arranged on the outer wall of the connecting member.

[0012] As a preferred solution of the utility model of the device for recovering waste heat from flue gas in a thermal power plant, the support member includes a support rod, and a bottom plate is connected to the bottom of the support rod.

[0013] As an optimal solution of the utility model of the flue gas waste heat recovery and utilization device of a thermal power plant, the transmission component includes a smoke conveying pipe arranged above the FL coupling demister, a fan is connected to the side of the smoke conveying pipe, and a smoke inlet pipe is connected to one side of the fan.

[0014] As an optimal solution of the utility model of the flue gas waste heat recovery and utilization device of a thermal power plant, the output part includes an outlet pipe arranged on the outside of the support rod, a mounting plate is provided on the side of the outlet pipe, an exhaust fan is provided above the mounting plate, the exhaust fan is fixedly connected to the outlet pipe, and an air supply pipe is provided on the top of the exhaust fan.

[0015] As an optimal solution of the utility model of the flue gas waste heat recovery and utilization device of a thermal power plant, the discharge component includes a desulfurization bin, an exhaust window is opened on the outer wall of the desulfurization bin, a solidification bin is provided below the desulfurization bin, a crystallization bin is provided at the bottom of the solidification bin, and a sulfur block outlet is provided on the outer wall of the crystallization bin.

[0016] As a preferred solution of the utility model of the device for recovering waste heat from flue gas in a thermal power plant, the collecting component includes a sulfur storage bin arranged below the sulfur block outlet, and a first chassis is provided at the bottom of the sulfur storage bin.

[0017] As a preferred solution of the utility model of the flue gas waste heat recovery and utilization device of a thermal power plant, wherein: the connecting part includes a hot air pipe arranged on the side wall of the crystallization bin, a heat exchanger is provided at the output end of the hot air pipe, and the stabilizing part includes a water tank arranged on the outer wall of the heat exchanger, and a second chassis is provided at the bottom of the water tank.

[0018] The beneficial effects of the flue gas waste heat recovery and utilization device of the thermal power plant of the present invention are: the flue gas is dewhitened by the dewhitening component, and the dehumidification-based flue gas dewhitening can synergistically and at low cost achieve the compliance and ultra-low near-zero emissions of dust, nitrogen oxides, heavy metals, and organic pollutants, so that environmental protection is transformed from pure investment to benefit. The dewhitening technology further removes pollutants such as steam water and pollutants in the flue gas, increases the transmitted waste heat to be clean, and uses the desulfurization bin to condense and collect sulfur in the flue gas, which not only reduces the mixed harm of pollutants such as sulfur dioxide and nitrogen oxides generated by coal combustion to the waste heat, but also can regenerate sulfur, improve energy utilization efficiency, promote the sustainable development of industry, and enhance corporate social responsibility and environmental awareness. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] FIG1 is a schematic diagram of the overall structure of the recycling device in the present invention.

[0021] FIG2 is a schematic diagram of the connection structure of the de-whitening component in the present invention.

[0022] FIG3 is an enlarged view of the structure of portion “A” in FIG2 of the present invention, that is, a schematic diagram of the connection structure of the disassembled components.

[0023] FIG4 is a schematic diagram of the connection structure of the desulfurization component in the present invention.

[0024] FIG5 is a schematic diagram of the connection structure of the discharge member in the present invention. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0028] Example 1, referring to Figures 1 to 3, is the first embodiment of the utility model. This embodiment provides a quick-release mechanism, including a disassembly component 100, which achieves the purpose of disassembling the adsorption plate by setting a reaction tank 101, an adsorption plate 102 arranged inside the reaction tank 101, a fixing part 103 arranged on the inner wall of the reaction tank 101, and a movable part 104 arranged on one side of the fixing part 103.

[0029] Specifically, the disassembly assembly 100 includes a reaction tank 101, an adsorption plate 102 arranged inside the reaction tank 101, a fixing part 103 arranged on the inner wall of the reaction tank 101, and a movable part 104 arranged on one side of the fixing part 103; the fixing part 103 includes a support plate 103a arranged on the inner wall of the reaction tank 101, a movable groove 103a-1 is opened on the outer wall of the support plate 103a, and a stabilizing block 103b is provided on the outer wall of the support plate 103a.

[0030] Preferably, a movable channel 103b-1 is provided on the end face of the stabilizing block 103b, a fixed column 103b-2 is provided inside the movable channel 103b-1, and the movable part 104 includes a splint 104a provided inside the movable channel 103b-1, a movable groove 104a-1 is provided on the outer wall of the splint 104a, and the movable groove 104a-1 is movably matched with the fixed column 103b-2.

[0031] Preferably, a bolt 104b is passed through the end surface of the clamping plate 104a, and the bolt 104b is movably engaged with the movable groove 103a-1, and an elastic member 104b-1 is sleeved on the outer wall of the bolt 104b.

[0032] Among them, the elastic part 104b-1 is a compression spring, which functions to further fix and clamp the adsorption plate 102; the bolt 104b is movably matched with the movable groove 103a-1, and the bolt 104b is used to clamp the adsorption plate 102 by the clamping plate 104a and the support plate 103a.

[0033] In summary, the support plate 103a is used to place the adsorption plate 102, and the adsorption plate 102 is clamped and fixed by the clamping plate 104a. The bolt 104b is further rotated, and under the action of the elastic member 104b-1, the adsorption plate 102 can be better fixed. The bolt 104b is rotated to loosen, and the clamping plate 104a is moved to remove the adsorption plate 102, which is convenient for cleaning or replacing a new adsorption plate 102.

[0034] Example 2, referring to Figures 1 to 2, is the second embodiment of the present utility model. This embodiment provides a flue gas waste heat recovery and utilization device for a thermal power plant, including a dewhitening component 200. By setting a FL coupling demister 201, a support member 202 arranged outside the FL coupling demister 201, a transmission member 203 arranged outside the support member 202, and an output member 204 arranged outside the support member 202, the flue gas is dewhitened.

[0035] Specifically, the desulfurization component 200 includes a FL coupled demister 201 arranged inside the reaction tank 101, a support member 202 arranged outside the FL coupled demister 201, a transmission member 203 arranged outside the support member 202, and an output member 204 arranged outside the support member 202; the chimney component 300 includes a chimney body 301 and a base 302 arranged at the bottom of the chimney body 301; the desulfurization component 400 includes an emission member 401, a collecting member 402 arranged below the emission member 401, a connecting member 403 arranged on the side wall of the emission member 401, and a stabilizing member 404 arranged on the outer wall of the connecting member 403.

[0036] Preferably, the support member 202 includes a support rod 202a, and a bottom plate 202a-1 is connected to the bottom of the support rod 202a.

[0037] Among them, the fan 203a-1 plays a role in extracting flue gas; the smoke inlet pipe 203a-2 and the smoke delivery pipe 203a are interconnected; the FL coupled demister 201 can effectively prevent water vapor from entering the subsequent exhaust treatment equipment, avoiding the occurrence of problems such as chimney condensation and flue gas condensation; the adsorption plate 102 can adsorb harmful gases in the flue gas and purify the flue gas; the support rods 202a are preferably set to four; the number of the bottom plate 202a-1 and the support rods 202a is equal.

[0038] In summary, the fan 203a-1 is used to draw the flue gas from the chimney 301 into the smoke inlet pipe 203a-2, and then transported from the smoke inlet pipe 203a-2 to the smoke delivery pipe 203a, and further transported from the smoke delivery pipe 203a to the reaction tank 101, and the flue gas is desulfurized by the FL coupling demister 201 and the adsorption disk 102 in the reaction tank 101.

[0039] Example 3, referring to FIG2 , is the third example of the present invention. This example is based on the previous example, except that the desulfurized gas is transported by the gas pipeline 204b-1 to the desulfurization chamber 401a for desulfurization treatment.

[0040] Specifically, the transmission component 203 includes a smoke conveying pipe 203a provided above the FL coupling demister 201, a fan 203a-1 is connected to one side of the smoke conveying pipe 203a, and a smoke inlet pipe 203a-2 is connected to one side of the fan 203a-1.

[0041] Preferably, the output member 204 includes an air outlet pipe 204a arranged on the outside of the support rod 202a, a mounting plate 204a-1 is provided on the side of the air outlet pipe 204a, an air pump 204b is provided above the mounting plate 204a-1, the air pump 204b is fixedly connected to the air outlet pipe 204a, and an air supply pipe 204b-1 is provided on the top of the air pump 204b.

[0042] Preferably, the discharge component 401 includes a desulfurization bin 401a, an exhaust window 401a-1 is provided on the outer wall of the desulfurization bin 401a, a solidification bin 401b is provided below the desulfurization bin 401a, a crystallization bin 401b-1 is provided at the bottom of the solidification bin 401b, and a sulfur block outlet 401b-2 is provided on the outer wall of the crystallization bin 401b-1.

[0043] Among them, the gas outlet pipe 204a is connected with the reaction tank 101, and the desulfurized gas enters the gas outlet pipe 204a from the reaction tank 101; the gas supply pipe 204b-1 extends to the inside of the desulfurization chamber 401a; the function of the vacuum pump 204b is to extract the desulfurized gas in the gas outlet pipe 204a into the gas supply pipe 204b-1; the mounting plate 204a-1 is fixedly connected to the vacuum pump 204b, and the top of the vacuum pump 204b is fixedly connected to the gas supply pipe 204b-1.

[0044] In summary, the desulfurized gas enters the gas outlet pipe 204a, and the gas is pumped from the gas outlet pipe 204a to the gas transmission pipe 204b-1 by the vacuum pump 204b, and then transported to the desulfurization chamber 401a by the gas transmission pipe 204b-1 for desulfurization.

[0045] Example 4, referring to Figures 1 to 5, is the fourth embodiment of the present utility model. This embodiment is based on the previous embodiment, but differs in that the sulfur condensation in the flue gas is collected by providing an emission member 401, a collecting member 402 provided below the emission member 401, a connecting member 403 provided on the side wall of the emission member 401, and a stabilizing member 404 provided on the outer wall of the connecting member 403.

[0046] Specifically, the collecting member 402 includes a sulfur storage bin 402a disposed below the sulfur block outlet 401b-2, and a first chassis 402a-1 is disposed at the bottom of the sulfur storage bin 402a.

[0047] Preferably, the connecting member 403 includes a hot air pipe 403a provided on the side wall of the crystallization chamber 401b-1, and a heat exchanger 403a-1 is provided at the output end of the hot air pipe 403a. The stabilizing member 404 includes a water tank 404a provided on the outer wall of the heat exchanger 403a-1, and a second chassis 404a-1 is provided at the bottom of the water tank 404a.

[0048] Among them, the exhaust windows 401a-1 are preferably set to four, evenly distributed on the side wall of the desulfurization chamber 401a; the desulfurization chamber 401a is fixedly connected to the solidification chamber 401b; the solidification chamber 401b is fixedly connected to the crystallization chamber 401b-1.

[0049] In summary, the gas pipeline 204b-1 transports the desulfurized gas to the desulfurization chamber 401a. The gas sulfur will condense after passing through the solidification chamber 401b and the crystallization chamber 401b-1, and enter the sulfur storage chamber 402a from the sulfur block outlet 401b-2. The gas enters the heat exchanger 403a-1 from the hot gas pipe 403a for conversion and then enters the water tank 404a, using the waste heat to heat the water in the water tank 404a.

[0050] It is important to note that the construction and arrangement of the present application shown in a number of different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, directional changes, etc.) without departing substantially from the novel teachings and advantages of the subject matter described in this application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete elements may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also an equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0051] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0052] It will be appreciated that in the development of any actual embodiment, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will, for those of ordinary skill having the benefit of this disclosure, be a routine undertaking of design, fabrication, and production without undue experimentation.

[0053] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A quick release mechanism, characterized in that: include, A disassembly assembly (100) comprises a reaction tank (101), an adsorption disk (102) disposed inside the reaction tank (101), a fixing member (103) disposed on the inner wall of the reaction tank (101), and a movable member (104) disposed on one side of the fixing member (103); The fixing member (103) comprises a support plate (103a) arranged on the inner wall of the reaction tank (101), a movable groove (103a-1) is provided on the outer wall of the support plate (103a), and a stabilizing block (103b) is provided on the outer wall of the support plate (103a).

2. The quick release mechanism according to claim 1, wherein: The end surface of the stabilizing block (103b) is provided with a movable channel (103b-1), a fixed column (103b-2) is provided inside the movable channel (103b-1), and the movable member (104) includes a clamping plate (104a) provided inside the movable channel (103b-1), a movable groove (104a-1) is provided on the outer wall of the clamping plate (104a), and the movable groove (104a-1) is movably matched with the fixed column (103b-2).

3. The quick release mechanism according to claim 2, wherein: A bolt (104b) is provided through the end surface of the clamping plate (104a), and the bolt (104b) is movably matched with the movable groove (103a-1), and an elastic member (104b-1) is sleeved on the outer wall of the bolt (104b).

4. A device for recovering waste heat from flue gas in a thermal power plant, characterized by: comprising the quick release mechanism according to any one of claims 1 to 3; and A de-whitening component (200) comprises a FL-coupled demister (201) disposed inside the reaction tank (101), a support member (202) disposed outside the FL-coupled demister (201), a transmission member (203) disposed outside the support member (202), and an output member (204) disposed outside the support member (202); A chimney assembly (300) comprises a chimney body (301) and a base (302) arranged at the bottom of the chimney body (301); The desulfurization assembly (400) comprises a discharge member (401), a collecting member (402) arranged below the discharge member (401), a connecting member (403) arranged on the side wall of the discharge member (401), and a stabilizing member (404) arranged on the outer wall of the connecting member (403).

5. The device for recovering waste heat from flue gas in a thermal power plant according to claim 4, characterized in that: The support member (202) comprises a support rod (202a), and a bottom plate (202a-1) is connected to the bottom of the support rod (202a).

6. The device for recovering waste heat from flue gas in a thermal power plant according to claim 5, characterized in that: The transmission component (203) comprises a smoke conveying pipe (203a) arranged above the FL coupling demister (201), a fan (203a-1) being connected to a side of the smoke conveying pipe (203a), and a smoke inlet pipe (203a-2) being connected to one side of the fan (203a-1).

7. The device for recovering waste heat from flue gas in a thermal power plant according to claim 6, characterized in that: The output member (204) includes an air outlet pipe (204a) arranged outside the support rod (202a), a mounting plate (204a-1) is provided on the side of the air outlet pipe (204a), an air pump (204b) is provided above the mounting plate (204a-1), the air pump (204b) is fixedly connected to the air outlet pipe (204a), and an air supply pipe (204b-1) is provided on the top of the air pump (204b).

8. The device for recovering waste heat from flue gas in a thermal power plant according to claim 7, characterized in that: The discharge component (401) includes a desulfurization bin (401a), an outer wall of the desulfurization bin (401a) is provided with an exhaust window (401a-1), a solidification bin (401b) is provided below the desulfurization bin (401a), a crystallization bin (401b-1) is provided at the bottom of the solidification bin (401b), and an outer wall of the crystallization bin (401b-1) is provided with a sulfur block outlet (401b-2).

9. The device for recovering waste heat from flue gas in a thermal power plant according to claim 8, characterized in that: The collecting member (402) comprises a sulfur storage bin (402a) arranged below the sulfur block outlet (401b-2), and a first bottom plate (402a-1) is provided at the bottom of the sulfur storage bin (402a).

10. The device for recovering waste heat from flue gas in a thermal power plant according to claim 9, characterized in that: The connecting member (403) includes a hot air pipe (403a) provided on the side wall of the crystallization bin (401b-1), and a heat exchanger (403a-1) is provided at the output end of the hot air pipe (403a). The stabilizing member (404) includes a water tank (404a) provided on the outer wall of the heat exchanger (403a-1), and a second chassis (404a-1) is provided at the bottom of the water tank (404a).

Citation Information

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