A boiler sewage discharge device

Abstract

The present invention relates to the technical field of boiler sewage discharge, and in particular to a boiler sewage discharge device, comprising: a sewage discharge mechanism, including a sewage pipe, an inspection pipe connected to the sewage pipe, and a valve arranged on the inspection pipe; a cleaning mechanism, including a support frame arranged in the sewage pipe, a moving rod connected to the support frame, a power component arranged on the moving rod, a disassembly component connected to the moving rod, a mounting arm connected to the disassembly component, and a rotating scraper arranged on the mounting arm; and a cleaning mechanism, including a cleaning component arranged on the power component, and a control component connected to the cleaning component, wherein the power component is driven to rotate by a fast-flowing water flow, and the rotation of the power component drives the moving rod to rotate, and at the same time drives the rotating scraper on the mounting arm to fit with the transition section of the sewage pipe, at this time, the rotating scraper removes the sediment on the transition section of the sewage pipe by rotation.

Description

Technical Field

[0001] The present invention relates to the technical field of boiler blowdown, and in particular to a boiler blowdown device. Background Art

[0002] A coal-fired circulating fluidized bed boiler is a common type of coal-fired boiler. It uses circulating fluidized bed technology for combustion, has high combustion efficiency, and realizes effective utilization of thermal energy. When the boiler is in operation, it will produce wastewater containing pollutants, such as cooling water, boiler descaling wastewater, etc. These wastewaters contain high concentrations of heavy metals, organic matter and other harmful substances, and need to be treated before discharge.

[0003] Since wastewater contains a large amount of sediment, when the wastewater flows through the transition section of the sewage pipe, the diameter of the pipe changes from large to small. The sediment is easily deposited and accumulated in the transition section, and will gradually accumulate and form a blockage over time. Summary of the Invention

[0004] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of this application to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions should not be used to limit the scope of the present invention.

[0005] In view of the above-mentioned problem that wastewater is easily deposited and accumulated when flowing through the transition section of the sewage pipe, the present invention is proposed.

[0006] Therefore, an object of the present invention is to provide a boiler blowdown device.

[0007] To solve the above technical problems, the present invention provides the following technical solutions: a boiler sewage discharge device, comprising: a sewage discharge mechanism including a sewage discharge pipe, an inspection pipe connected to the sewage discharge pipe, and a valve provided on the inspection pipe; a cleaning mechanism including a support frame provided in the sewage discharge pipe, a moving rod connected to the support frame, a power component provided on the moving rod, a disassembly component connected to the moving rod, a mounting arm connected to the disassembly component, and a rotating scraper provided on the mounting arm; and a cleaning mechanism including a cleaning component provided on the power component, and a control component connected to the cleaning component.

[0008] The control component includes a storage box provided on the fan blade, a storage cavity provided in the storage box, a grab hook provided in the storage cavity, a control spring connected to the storage cavity and the grab hook respectively, and a control slot provided in the moving scraper;

[0009] The hook end of the grab hook is provided with an inclined surface, and the control groove is provided with a control protrusion.

[0010] As a preferred solution of the boiler sewage discharge device described in the present invention, the power component includes a rotating cylinder connected to the moving rod, fan blades connected to the rotating cylinder, a baffle connected to the moving rod, and a power spring arranged on the peripheral side of the moving rod.

[0011] As a preferred solution of the boiler sewage discharge device of the present invention, the cleaning component includes a cleaning spring connected to the rotating drum and a movable scraper connected to the cleaning spring.

[0012] As a preferred solution of the boiler sewage discharge device described in the present invention, the cleaning component further includes reinforcing ribs arranged on the fan blades and guide grooves opened on the movable scraper; wherein the movable scraper is sleeved on the fan blades and slides along the reinforcing ribs through the guide grooves.

[0013] As a preferred solution of the boiler sewage discharge device described in the present invention, the control component includes a storage box arranged on the fan blade, a storage cavity opened in the storage box, a grab hook arranged in the storage cavity, a control spring connected to the storage cavity and the grab hook respectively, and a control groove opened in the movable scraper.

[0014] As a preferred solution of the boiler sewage discharge device of the present invention, the hook end of the grab hook is provided with an inclined surface, and the control groove is provided with a control protrusion.

[0015] As a preferred solution of the boiler sewage discharge device described in the present invention, the disassembly and assembly parts include a connecting block connected to the mounting arm, a mounting seat arranged on the connecting block, a rotating gear arranged on the mounting seat, a rotating plate coaxially arranged with the rotating gear, a receiving groove opened on the connecting block, a rack arranged in the receiving groove, and a limiting assembly arranged on the connecting block.

[0016] As a preferred solution of the boiler blowdown device of the present invention, the rotating plate is an arc-shaped plate, and the cross-section of the accommodating groove is "L"-shaped.

[0017] As a preferred solution of the boiler sewage discharge device described in the present invention, the limiting assembly includes a limiting spring arranged in the accommodating groove, a limiting plate connected to the limiting spring, and a lifting section and a limiting groove opened on the rotating plate.

[0018] As a preferred solution of the boiler sewage discharge device described in the present invention, there are two groups of disassembly and assembly parts arranged in a circular array with the moving rod as the circumference, the two connecting blocks cooperate to form a disc, the disc is provided with a positioning groove, and the moving rod is provided with a positioning protrusion.

[0019] The beneficial effects of the present invention are as follows: the present invention drives the power component to rotate through the fast-flowing water flow, and the rotation of the power component will drive the moving rod to rotate, and at the same time drive the rotating scraper on the mounting arm to fit with the transition section of the sewage pipe. At this time, the rotating scraper removes the sediment on the transition section of the sewage pipe by rotation, thereby avoiding blockage of the sewage pipe; the fast-rotating power component will trigger the control component, and the control component will release the limit on the cleaning component. The cleaning component will be thrown out due to the centrifugal force generated by the rotation to clean the power component, thereby extending the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] 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 paying any creative work.

[0021] Figure 1 This is a schematic diagram of the sewage discharge mechanism of a boiler sewage discharge device.

[0022] Figure 2 The figure is a schematic diagram of the cleaning structure and cleaning mechanism of a boiler sewage discharge device.

[0023] Figure 3 This is a first-person perspective diagram of the cleaning components of a boiler sewage discharge device.

[0024] Figure 4 This is a schematic diagram from a second perspective of the cleaning components of a boiler sewage discharge device.

[0025] Figure 5 Schematic diagram of the control components of a boiler blowdown device.

[0026] Figure 6 This is a schematic diagram of the disassembly and assembly parts of a boiler blowdown device.

[0027] Figure 7 This is an exploded diagram of the disassembled and assembled parts of a boiler blowdown device.

[0028] Figure 8 The figure is a cross-sectional schematic diagram of a connection block of a boiler blowdown device.

[0029] Figure 9 This is a schematic diagram of an exploded view of a limit assembly of a boiler blowdown device.

[0030] Figure 10 This is a schematic diagram of the disassembled and assembled parts of a boiler blowdown device before installation. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0032] 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.

[0033] 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 of other embodiments.

[0034] Furthermore, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, when describing the embodiments of the present invention, cross-sectional views illustrating device structures may be partially enlarged and not to scale. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, the three-dimensional dimensions of length, width, and depth should be included.

[0035] Example 1

[0036] Reference Figure 1-Figure 2, which is the first embodiment of the present invention, provides a boiler sewage device, including a sewage discharge mechanism 100, including a sewage pipe 101, wherein the sewage pipe 101 is a variable diameter pipe, and wastewater flows to a sedimentation tank and other treatment facilities through the sewage pipe 101, and an inspection pipe 102 is connected to the sewage pipe 101, wherein the inspection pipe 102 is provided to facilitate inspection of the sewage pipe 101 and replacement of parts in the sewage pipe 101, and a valve is provided on the inspection pipe 102. 103, wherein the valve 103 is used to control the opening and closing of the maintenance pipe 102; the cleaning mechanism 200, including a support frame 201 fixed in the sewage pipe 101, wherein the cross section of the support frame 201 is "Y"-shaped, used to support the moving rod 202, the moving rod 202 connected to the support frame 201, wherein the moving rod 202 is slidably connected to the support frame 201, and the moving rod 202 can rotate in the support frame 201, and a power component 203 is provided on the moving rod 202, wherein the power component 20 The movable rod 202 drives the rotating scraper 206 to move and rotate. The detachable assembly 204 connected to the movable rod 202 allows for quick replacement of the rotating scraper 206 due to rapid frictional wear. The mounting arm 205 connected to the detachable assembly 204 provides mounting space and support for the rotating scraper 206. The rotating scraper 206, fixed to the mounting arm 205, scrapes off sediment from the transition section of the sewage pipe 101 through rotation. The cleaning mechanism 300 includes a cleaning component 301 disposed on the power component 203, for cleaning the power component 203 to extend its service life. The control component 302 connected to the cleaning component 301 limits the cleaning component 301. The power component 203 must reach a certain rotational speed before the control component 302 releases the limit on the cleaning component 301.

[0037] Specifically, the power component 203 includes a rotating cylinder 203a fixedly connected to the moving rod 202, wherein the rotating cylinder 203a is used to expand the installation area of the fan blades 203b, and a plurality of fan blades 203b fixedly connected to the rotating cylinder 203a, wherein the fan blades 203b rotate when impacted by the fast-flowing water flow, thereby driving the rotating cylinder 203a, the moving rod 202, the mounting arm 205, and the rotating scraper 206 to rotate; at the same time, it drives the above parts to approach the transition section of the sewage pipe 101, so that the rotating scraper 206 A baffle 203c is fitted with the transition section of the sewage pipe 101 and fixedly connected to the moving rod 202, and a power spring 203d is arranged on the side of the moving rod 202, wherein one end of the power spring 203d is fixedly connected to the baffle 203c, and the other end of the power spring 203d is rotatably connected to the support frame 201. When the moving rod 202 is moved by the impact of the fan blade 203b by the water flow, the power spring 203d is stretched. When the water flow stops impacting the fan blade 203b, the power spring 203d drives the moving rod 202 to reset.

[0038] Operation process: By regularly injecting fast-flowing water into the sewage pipe 101, the sediment in the sewage pipe 101 can be regularly cleaned. The flow rate of the fast-flowing water is faster than the flow rate of the wastewater. The water flow impacts the fan blade 203b, causing the fan blade 203b, the rotating cylinder 203a, the moving rod 202, the mounting arm 205, and the rotating scraper 206 to move along the support frame 201 until the rotating hanging plate fits into the transition section of the sewage pipe 101. At this time, the power spring 203d is stretched, and the fan blade 203b rotates under the impact of the water flow, thereby driving the rotating cylinder 203a, the moving rod 202, the mounting arm 205, and the rotating scraper 206 to move along the support frame 201. 5. The rotating scraper 206 rotates. At this time, the rotating scraper 206 removes the sediment on the transition section of the sewage pipe 101 to prevent the sewage pipe 101 from being blocked. When the water flow stops, the power spring 203d returns to its original state and drives the fan blade 203b, the rotating cylinder 203a, the moving rod 202, the mounting arm 205, and the rotating scraper 206 to reset. At this time, the rotating scraper 206 is separated from the transition section of the sewage pipe 101. When the wastewater hits the fan blade 203b, due to the flow rate problem, the impact force is not enough, so the rotating scraper 206 fits the transition section of the sewage pipe 101, which can extend the service life of the scraper;

[0039] Since fast-flowing water needs to be prepared in advance, in order to avoid untimely cleaning, an external motor can also be used as power to drive the fan blades 203b to rotate. Accordingly, the position and installation method of the moving rod 202 need to be adjusted so that the initial position of the rotating scraper 206 is in contact with the transition section of the sewage pipe 101, and the moving rod 202 and the support frame 201 can only rotate but not move.

[0040] Example 2

[0041] Reference Figure 3-Figure 5, which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that the cleaning component 301 includes a cleaning spring 301a fixedly connected to the rotating cylinder 203a, wherein the cleaning spring 301a will be stretched as the moving scraper 301b moves. The moving scraper 301b fixedly connected to the cleaning spring 301a will generate centrifugal force when the fan blade 203b rotates. The centrifugal force will cause the scraper to move, thereby achieving the purpose of cleaning the fan blade 203b.

[0042] Specifically, the cleaning component 301 also includes a reinforcing rib 301c arranged on the fan blade 203b, wherein the reinforcing rib 301c and the fan blade 203b are integrally formed, and the reinforcing rib 301c can improve the strength of the fan blade 203b, and a guide groove 301d is opened on the movable scraper 301b, and the reinforcing rib 301c is slidably connected to the guide groove 301d; wherein the movable scraper 301b is sleeved on the fan blade 203b and slides along the reinforcing rib 301c through the guide groove 301d.

[0043] Furthermore, the control component 302 includes a storage box 302a fixed on the fan blade 203b, a storage cavity 302b opened in the storage box 302a, and a grab hook 302c rotatably connected to the inner wall of the storage cavity 302b, wherein the rapidly flowing water causes the fan blade 203b to rotate, and the grab hook 302c is affected by the centrifugal force of the rotation of the fan blade 203b and rotates away from the control protrusion 302g, a control spring 302d connected to the storage cavity 302b and the grab hook 302c respectively, when the grab hook 302c rotates, the control spring 302d will be stretched. Due to the provision of the control spring 302d, the centrifugal force generated by the wastewater flow driving the fan blade 203b to rotate is not enough to move the grab hook 302c away from the control protrusion 302g, and a control groove 302e is opened in the movable scraper 301b, and the control groove 302e has a limiting effect on the grab hook 302c.

[0044] Furthermore, the hook end of the grab hook 302c is provided with an inclined surface 302f, the control groove 302e is provided with a control protrusion 302g, and the control spring 302d makes the hook end of the grab hook 302c fit with the control protrusion 302g.

[0045] The rest of the structure is the same as that of Example 1.

[0046] Operation process: The fast-flowing water will drive the fan blade 203b to rotate rapidly. The centrifugal force generated by the fast rotation of the fan blade 203b causes the grab hook 302c to rotate away from the control protrusion 302g. At this time, the control spring 302d is stretched. Due to the lack of the limit of the grab hook 302c, the centrifugal force will throw the movable scraper 301b outward. At this time, the cleaning spring 301a is stretched. The movable scraper 301b removes the dirt attached to the surface of the fan blade 203b while moving along the reinforcing rib 301c, thereby extending the service life of the fan blade 203b. When the fast-flowing water stops flowing into the sewage pipe 101, the fan blade 203b stops rotating, the centrifugal force disappears, and the control spring 302d drives the grab hook 302c to rotate away from the control protrusion 302g. The hook 302c is reset, and the cleaning spring 301a drives the movable scraper 301b to reset. As the movable scraper 301b is reset, the control protrusion 302g of the control groove 302e fits with the inclined surface 302f of the bent hook end of the grab hook 302c. The cleaning spring 301a drives the control protrusion 302g to squeeze the inclined surface 302f, so that the grab hook 302c moves away from the control protrusion 302g until the control protrusion 302g is separated from the inclined surface 302f. At this time, the movable scraper 301b continues to move, and the grab hook 302c enters the control groove 302e. Then the control spring 302d drives the grab hook 302c to reset again, so that the bent hook end of the grab hook 302c fits with the control protrusion 302g.

[0047] Example 3

[0048] Reference Figures 6-10 , which is the third embodiment of the present invention. Different from the above embodiments, the disassembly and assembly component 204 includes a connecting block 204a fixedly connected to the mounting arm 205, wherein the two connecting blocks 204a are respectively clamped on the circumference of the moving rod 202 from the upper and lower directions, a mounting seat 204b fixed on the connecting block 204a, a rotating gear 204c rotatably connected to the mounting seat 204b, a rotating plate 204d coaxially arranged with the rotating gear 204c, and the rotating plate 204d is fixedly connected to the rotating gear 204c. When the rotating gear 204c rotates, it drives the rotating plate 204d to rotate, a receiving groove 204e is provided on the connecting block 204a, a rack 204f fixed in the receiving groove 204e, wherein the rack 204f is meshed with the rotating gear 204c, and a limiting component 204g is provided on the connecting block 204a, wherein the limiting component 204g is used to limit the rotating plate 204d.

[0049] Specifically, the rotating plate 204d is an arc-shaped plate, one end of which is fixedly connected to the rotating gear 204c, and the other end of the arc-shaped plate is provided with a lifting section 204g-3 and a limiting groove 204g-4. The cross-section of the accommodating groove 204e is "L"-shaped, which facilitates the rotation of the rotating plate 204d in the accommodating groove 204e. The initial state of the rotating plate 204d is vertical, and it will rotate 60° under the influence of the rotating gear 204c and the rack 204f.

[0050] Furthermore, the limiting assembly 204g includes a limiting spring 204g-1 fixedly arranged in the receiving groove 204e, wherein two limiting springs 204g-1 are provided. When the limiting plate 204g-2 is displaced, the limiting spring 204g-1 is deformed, and the limiting plate 204g-2 fixedly connected to the limiting spring 204g-1 slides through the connecting block 204a and is opened on the rotating plate 204. d, as the rotating plate 204d rotates, the lifting surface 204g-3 will lift the limiting plate 204g-2, and the rotating plate 204d continues to rotate. When the limiting plate 204g-2 is flush with the limiting groove 204g-4, the limiting spring 204g-1 will return to its original state and pull the limiting plate 204g-2 into the limiting groove 204g-4. At this time, the rotating cup is limited and fixed.

[0051] Furthermore, there are two groups of disassembly and assembly parts 204 arranged in a circular array around the moving rod 202. The two connecting blocks 204a cooperate to form a disc, and the disc is provided with a positioning groove. The moving rod 202 is provided with a positioning protrusion, wherein the positioning groove and the positioning protrusion cooperate to play a positioning role in the connection between the connecting block 204a and the moving rod 202.

[0052] The rest of the structure is the same as that of Example 2.

[0053] Operation process: Place the two disassembly components 204 on the upper and lower sides of the moving rod 202, and move the two connecting blocks 204a closer to each other so that the mounting seat 204b is inserted into the receiving groove 204e. At this time, the rotating gear 204c is engaged with the rack 204f. As the mounting seat 204b continues to penetrate deeper into the receiving groove 204e, the rotating gear 204c rotates and drives the vertical rotating plate 204d to rotate 60°. Finally, the mounting seat 204b is inserted into the vertical part of the receiving groove 204e, and the rotating plate 204d is rotated into the horizontal part of the receiving groove 204e. During the rotation of the rotating plate 204d, the lifting section 204g-3 will move the limit plate 2 04g-2 is lifted up until the limit plate 204g-2 is in contact with the side of the rotating plate 204d. At this time, the limit spring 204g-1 is stretched and the rotating plate 204d continues to rotate. When the limit plate 204g-2 is flush with the limit groove 204g-4, the limit spring 204g-1 will return to its original state and pull the limit plate 204g-2 into the limit groove 204g-4. At this time, the rotating plate 204d is limited and fixed, and the two connecting blocks 204a are fixed together with the moving rod 202. During later maintenance and replacement, the limit plate 204g-2 is pulled out from the limit groove 204g-4. At this time, the two connecting blocks 204a can be pulled apart.

[0054] It is important to note that the construction and arrangement of the present application, as illustrated in various exemplary embodiments, are illustrative only. Although only a few embodiments are described in detail in this disclosure, those reading this disclosure will readily appreciate that numerous modifications are possible (e.g., variations in the size, dimensions, structure, shape, and proportions of various components, as well as parameter values (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without materially departing from the novel teachings and advantages of the subject matter described herein. For example, components shown as integrally formed may be constructed from multiple parts or components, the positions of components may be inverted or otherwise altered, and the nature, number, or position of discrete components may be modified or changed. All such modifications are therefore intended to be encompassed within the scope of this invention. The order or sequence of any process or method steps may be altered or resequenced according to alternative embodiments. In the claims, any "means-plus-function" clause is intended to cover structures that perform the functions described herein, and not only structural equivalents but also structural equivalents. Other substitutions, modifications, changes, and omissions may be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of this invention. Therefore, the invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0055] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment may not be described (i.e., 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).

[0056] 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.

[0057] 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, which should all be included in the scope of the claims of the present invention.

Claims

1. A boiler blowdown device, characterized in that: include, A sewage discharge mechanism (100) comprises a sewage discharge pipe (101), a maintenance pipe (102) connected to the sewage discharge pipe (101), and a valve (103) provided on the maintenance pipe (102); A cleaning mechanism (200) comprises a support frame (201) disposed in the sewage pipe (101), a moving rod (202) connected to the support frame (201), a power component (203) disposed on the moving rod (202), a disassembly component (204) connected to the moving rod (202), a mounting arm (205) connected to the disassembly component (204), and a rotating scraper (206) disposed on the mounting arm (205); and, A cleaning mechanism (300) comprising a cleaning component (301) disposed on the power component (203), and a control component (302) connected to the cleaning component (301); The cleaning component (301) comprises a cleaning spring (301a) connected to the rotating cylinder (203a) and a movable scraper (301b) connected to the cleaning spring (301a); The control component (302) comprises a storage box (302a) provided on the fan blade (203b) of the power component (203), a storage cavity (302b) provided in the storage box (302a), a grab hook (302c) provided in the storage cavity (302b), a control spring (302d) respectively connected to the storage cavity (302b) and the grab hook (302c), and a control slot (302e) provided in the moving scraper (301b); The hook end of the grab hook (302c) is provided with an inclined surface (302f), and the control groove (302e) is provided with a control protrusion (302g).

2. The boiler blowdown device according to claim 1, characterized in that: The power component (203) comprises a rotating cylinder (203a) connected to the moving rod (202), the fan blade (203b) connected to the rotating cylinder (203a), a baffle (203c) connected to the moving rod (202), and a power spring (203d) arranged on the peripheral side of the moving rod (202).

3. The boiler blowdown device according to claim 2, characterized in that: The cleaning component (301) further comprises a reinforcing rib (301c) provided on the fan blade (203b), and a guide groove (301d) provided on the movable scraper (301b); The movable scraper (301b) is sleeved on the fan blade (203b) and slides along the reinforcing rib (301c) through the guide groove (301d).

4. The boiler blowdown device according to claim 3, characterized in that: The disassembly and assembly component (204) comprises a connecting block (204a) connected to the mounting arm (205), a mounting seat (204b) arranged on the connecting block (204a), a rotating gear (204c) arranged on the mounting seat (204b), a rotating plate (204d) coaxially arranged with the rotating gear (204c), a receiving groove (204e) opened on the connecting block (204a), a rack (204f) arranged in the receiving groove (204e), and a limiting component (204g) arranged on the connecting block (204a).

5. The boiler blowdown device according to claim 4, characterized in that: The rotating plate (204d) is an arc-shaped plate, and the cross-section of the accommodating groove (204e) is "L"-shaped.

6. The boiler blowdown device according to claim 5, characterized in that: The limiting assembly (204g) comprises a limiting spring (204g-1) arranged in the accommodating groove (204e), a limiting plate (204g-2) connected to the limiting spring (204g-1), and a lifting section (204g-3) and a limiting groove (204g-4) provided on the rotating plate (204d).

7. The boiler blowdown device according to claim 6, characterized in that: The disassembly and assembly components (204) are arranged in two groups in a circular array around the moving rod (202), and the two connecting blocks (204a) cooperate to form a disc, the disc is provided with a positioning groove, and the moving rod (202) is provided with a positioning protrusion.

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