Energy-saving gas condensing boiler convenient to maintain

Abstract

The invention relates to the technical field of fuel gas condensing boilers, in particular to an energy-saving fuel gas condensing boiler convenient to maintain, which comprises a first heated bin, a second heated bin, a first heat exchanger and a second heat exchanger, a first fixing ring is arranged at the end of the pipeline, a jacking plate is fixed to the surface of the first heated bin, a sleeving pipe is arranged at the end of the pipeline, a connecting pipe is arranged at the end of the sleeving pipe, an inserting groove is formed in the surface of the connecting pipe, and a stress plate is fixed to the surface of the sleeving pipe; the arc-shaped groove is formed in the surface of the jacking plate; the device has the beneficial effects that the jacking blocks are arranged in the clamping grooves and used for jacking and pushing the pipelines so that the two sets of pipelines can be tightly attached together, the sealing strips are arranged on the surfaces of the first heating bin and the second heating bin, the sealing effect is achieved, after the first heating bin and the second heating bin are separated, the jacking plates do not abut against the surfaces of the stress plates any more, and the stress plates cannot abut against the surfaces of the stress plates any more; the sleeving pipe is retracted into the connecting pipe, and the screw rods on the surfaces of the second fixing ring and the first fixing ring are detached.

Description

Technical Field

[0001] The invention relates to the technical field of gas condensing boilers, in particular to an energy-saving gas condensing boiler which is easy to maintain. Background Art

[0002] A boiler is a commonly used energy conversion device that transfers the chemical energy released after the combustion of fuel or the thermal energy of high-temperature flue gas in industrial production to the water in the boiler through the heat transfer process, so that the water absorbs heat and becomes high-temperature water or steam with a certain amount of thermal energy. In the operation of a traditional boiler, the flue gas generated by the combustion in the boiler is directly discharged through the chimney. However, due to the high temperature of the exhaust flue gas and the large amount of superheated water vapor carried in the flue gas, a large amount of heat is discharged and cannot be used for heating, resulting in poor energy-saving effects. By setting a condenser at the exhaust port, the discharged heat energy can be effectively recovered, which is energy-saving and environmentally friendly.

[0003] In the prior art, patent CN213480614U includes a boiler body, a burner is arranged at the left end of the boiler body, a water supply port and a steam port are arranged on the boiler body, a discharge port is fixedly installed on the right end surface of the boiler body, a condenser box is fixedly installed at the discharge port, and a condenser assembly is arranged inside the condenser box. The utility model is an energy-saving gas-fired condensing boiler that is easy to maintain. By arranging metal mesh plates, heat-conducting fins and sealing gaskets, etc., the recovery efficiency of the boiler condenser is improved, the service life of the condensing pipe is improved, and maintenance and repair are convenient. The utility model solves the problems that the heat recovery efficiency of the condenser of most current energy-saving gas-fired condensing boilers is low, there are toxic gases in the flue gas, the condensing pipe is easily corroded, and maintenance and repair are inconvenient;

[0004] However, the existing gas condensing boiler will produce carbon deposits on the inner wall of the combustion chamber after long-term use. The carbon deposits attached to the inner wall of the combustion chamber will affect the transfer of flame heat, thereby reducing the thermal efficiency of the gas condensing boiler. However, it is not easy to clean the carbon deposits on the inner wall of the combustion chamber of the existing gas condensing boiler. Summary of the invention

[0005] The object of the present invention is to provide an energy-saving gas condensing boiler that is easy to maintain, so as to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: an energy-saving gas condensing boiler that is easy to maintain, comprising:

[0007] A first heating chamber, wherein a second heating chamber is disposed at the end of the first heating chamber;

[0008] A pipeline, a first fixing ring is arranged at the end of the pipeline, a top holding plate is fixed on the surface of the first heating chamber, a sleeve pipe is arranged at the end of the pipeline, a connecting pipe is arranged at the end of the sleeve pipe, a plug-in groove is opened on the surface of the connecting pipe, a force-bearing plate is fixed on the surface of the sleeve pipe; and an arc groove is arranged on the surface of the top holding plate.

[0009] Preferably, a fixing plate is fixed on the surface of the first heating bin, a threaded hole is provided on the surface of the fixing plate, a sealing strip is provided on the surface of the first heating bin, a clamping groove is provided on the surface of the first heating bin, a supporting block is provided inside the clamping groove, a plurality of groups of supporting blocks are provided, a pipe is provided between the first heating bin and the second heating bin, two groups of pipes are provided, the pipes can be placed in the clamping groove, and the supporting blocks are supported on the surface of the pipes, and after the first heating bin and the second heating bin are merged, the supporting blocks are supported on the surface of the pipes, so that the two groups of pipes fit together.

[0010] Preferably, a moving rod is inserted into the interior of the first heating chamber and the second heating chamber, and the moving rod can move inside the first heating chamber and the second heating chamber, and a telescopic rod is inserted into the end of the moving rod, and the telescopic rod can telescopically move inside the moving rod, and a spring is arranged inside the telescopic rod, and the spring connects the interior of the moving rod and the end of the telescopic rod, and the spring inside the moving rod has a thrust on the telescopic rod, so that the telescopic rod extends out of the interior of the moving rod.

[0011] Preferably, a limit plate is fixed to the end of the telescopic rod, and a sleeve ring is sleeved on the surface of the limit plate. The sleeve ring moves with the telescopic rod and is fixed to the surface of the pipe. A first fixing ring is fixed to the surfaces of both ends of the pipe, and a threaded hole is provided on the surface of the first fixing ring. The end of the connecting pipe is connected to other equipment, and a plug-in groove is provided at the end of the connecting pipe. The sleeve pipe is plugged into the plug-in groove and can move in the plug-in groove. A spring is provided inside the plug-in groove, and the spring connects the inside of the plug-in groove and the end of the sleeve pipe. The spring inside the plug-in groove has a pulling force on the sleeve pipe, so that the sleeve pipe is retracted into the inside of the plug-in groove.

[0012] Preferably, there are two groups of force-bearing plates fixed, and the two groups of force-bearing plates are symmetrically fixed on the surface of the sleeve tube. The force-bearing plates move with the sleeve tube. Top holding plates are fixed on the surfaces of the first heating chamber and the second heating chamber. Through grooves are provided on the surfaces of the top holding plates, and arc grooves are provided on the ends of the top holding plates. Elastic bands are arranged in the arc grooves, and the elastic bands are elastic.

[0013] Preferably, an inflatable cushion is provided in the arc-shaped groove, the interior of the inflatable cushion is empty, the end of the inflatable cushion is connected to a transverse tube, the interior of the transverse tube is communicated with the interior of the inflatable cushion, an extension plate is fixed to the surface of the top holding plate, a sealing tube is provided at the end of the extension plate, the interior of the sealing tube is communicated with the interior of the transverse tube, and the air inside the inflatable cushion can enter the interior of the sealing tube through the transverse tube.

[0014] Preferably, a limiting block is fixed at the end of the moving rod, and the limiting block moves with the moving rod. A U-shaped rod is fixed on the surface of the limiting block, and a spring is inserted at the end of the U-shaped rod. The spring can be telescopically movable inside the U-shaped rod, and a plug-in rod is provided on the surface of the spring, and one end of the plug-in rod is connected to the end of the U-shaped rod and the surface of the fixed plate. The spring has a pulling force on the U-shaped rod, so that the U-shaped rod is wrapped around the outside of the plug-in rod.

[0015] Preferably, a first bottom plate is fixed to the bottom of the first heated chamber, a slide groove is fixed to the surface of the first bottom plate, a sliding plate is inserted into the surface of the slide groove, and the sliding plate can move on the surface of the slide groove; a second bottom plate is fixed to the bottom of the second heated chamber, a pulley is provided at the bottom of the second bottom plate, and multiple groups of pulleys are provided, and the pulleys can roll at the bottom of the second bottom plate.

[0016] Preferably, the end of the sliding plate is connected to the surface of the second bottom plate, the sliding plate moves along with the second bottom plate, and the second heating chamber moves along with the second bottom plate.

[0017] Preferably, a handle is fixed on the surface of the second heating chamber, and the handle is pulled to move the second heating chamber away from the surface of the first heating chamber. A second fixing ring is fixed to the end of the sleeve tube. After the sleeve tube is sleeved on the surfaces of the two groups of pipes, the second fixing ring is supported on the surface of the first fixing ring on the surface of the pipe, and the first fixing ring and the second fixing ring can be fixed by a screw.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The clamping groove proposed in the present invention is provided with a supporting block for pushing the pipeline so that the two groups of pipelines fit tightly together, and the surfaces of the first heating chamber and the second heating chamber are provided with sealing strips to play a sealing role. After the first heating chamber and the second heating chamber are separated, the supporting plate is no longer supported on the surface of the force-bearing plate, so that the sleeve pipe is retracted into the interior of the connecting pipe, the second fixing ring and the screw on the surface of the first fixing ring are removed, the sleeve pipe is retracted into the connecting pipe, and the two groups of pipelines can be separated and started, which is convenient for cleaning the carbon deposits inside the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0021] Figure 2 This is a structural schematic diagram of another viewing angle of the present invention.

[0022] Figure 3 This is a schematic diagram of the structure of the first heating chamber of the present invention.

[0023] Figure 4 It is a schematic diagram of the structure of the second heating chamber of the present invention.

[0024] Figure 5 It is a schematic diagram of the pipeline structure of the present invention.

[0025] Figure 6 It is a schematic diagram of the top holding plate structure of the present invention.

[0026] Figure 7 It is a schematic diagram of the connecting pipe structure of the present invention.

[0027] Figure 8 This is a schematic structural diagram of the connecting pipe of the present invention from another perspective.

[0028] Fig. 9 This is a schematic structural diagram of the top holding plate of the present invention from another perspective.

[0029] Fig.10 for Figure 1 A schematic diagram of the enlarged structure in the middle.

[0030] In the figure: a first heated chamber 1, a second heated chamber 2, a pipeline 3, a snap-on groove 4, a sealing strip 5, a top holding block 6, a fixed plate 7, a movable rod 8, a telescopic rod 9, a limit plate 10, a first bottom plate 11, a slide groove 12, a sliding plate 13, a handle 14, a pulley 15, a second bottom plate 16, a sleeve ring 17, a top holding plate 18, a first fixed ring 19, a connecting pipe 20, a through groove 21, an arc groove 22, an elastic band 23, a sleeve pipe 24, a force plate 25, a plug-in groove 26, a second fixed ring 27, an extension plate 28, a transverse tube 29, a sealing tube 30, an inflatable cushion 31, a limit block 32, a U-shaped rod 33, a spring 34, and a plug-in rod 35. DETAILED DESCRIPTION

[0031] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figures 1 to 10 , the present invention provides a technical solution:

[0033] Embodiment 1: An energy-saving gas condensing boiler which is easy to maintain, comprises: a first heating chamber 1, a second heating chamber 2 is arranged at the end of the first heating chamber 1; a pipe 3, a first fixing ring 19 is arranged at the end of the pipe 3, a top holding plate 18 is fixed to the surface of the first heating chamber 1, a sleeve pipe 24 is arranged at the end of the pipe 3, a connecting pipe 20 is arranged at the end of the sleeve pipe 24, a plug-in groove 26 is opened on the surface of the connecting pipe 20, a force-bearing plate 25 is fixed to the surface of the sleeve pipe 24; and an arc groove 22, which is arranged on the surface of the top holding plate 18, the top holding plate 18 is supported on the surface of the force-bearing plate 25, so that the sleeve pipe 24 extends out from the connecting pipe 20 and is sleeved on the surfaces of the two groups of pipes 3, and the force-bearing plate 25 can be inserted into the through groove 21, the top holding plate 18 continues to move, and the elastic band 23 is supported on the surface of the sleeve pipe 24 and is stretched, so that the sleeve pipe 24 is supported on the surface of the inflatable cushion 31.

[0034] Embodiment 2: On the basis of embodiment 1, a fixing plate 7 is fixed on the surface of the first heating chamber 1, and a threaded hole is provided on the surface of the fixing plate 7. A sealing strip 5 is provided on the surface of the first heating chamber 1. A clamping groove 4 is provided on the surface of the first heating chamber 1. A supporting block 6 is provided inside the clamping groove 4. Multiple groups of supporting blocks 6 are provided. A pipe 3 is provided between the first heating chamber 1 and the second heating chamber 2. Two groups of pipes 3 are provided. The pipes 3 can be placed in the clamping groove 4, and the supporting blocks 6 are supported on the surface of the pipes 3. After the first heating chamber 1 and the second heating chamber 2 are merged, the supporting blocks 6 are supported on the surface of the pipes 3, so that the two groups of pipes 3 fit together. Two groups of force-bearing plates 25 are fixed. The two groups of force-bearing plates 25 are symmetrically fixed on the surface of the sleeve pipe 24. The force-bearing plates 25 move with the sleeve pipe 24. The surfaces of the first heating chamber 1 and the second heating chamber 2 are fixed with supporting plates 18. A through groove 21 is provided on the surface of the top holding plate 18, and an arc groove 22 is provided at the end of the top holding plate 18. An elastic belt 23 is provided in the arc groove 22, and the elastic belt 23 is elastic. An inflatable cushion 31 is provided in the arc groove 22, and the interior of the inflatable cushion 31 is empty. The end of the inflatable cushion 31 is connected to the cross tube 29, and the interior of the cross tube 29 is communicated with the interior of the inflatable cushion 31. An extension plate 28 is fixed to the surface of the top holding plate 18, and a sealing tube 30 is provided at the end of the extension plate 28. The interior of the sealing tube 30 is communicated with the interior of the cross tube 29. The air inside the inflatable cushion 31 can enter the interior of the sealing tube 30 through the cross tube 29. The sleeve tube 24 is supported on the surface of the inflatable cushion 31, so that the air inside the inflatable cushion 31 enters the sealing tube 30 through the cross tube 29. The sealing tube 30 is supported between the connecting tube 20 and the force-bearing plate 25 to seal the plug-in groove 26.

[0035] A moving rod 8 is inserted into the interior of the first heating chamber 1 and the second heating chamber 2, and the moving rod 8 can move inside the first heating chamber 1 and the second heating chamber 2. A telescopic rod 9 is inserted into the end of the moving rod 8, and the telescopic rod 9 can telescopically move inside the moving rod 8. A spring is arranged inside the telescopic rod 9, and the spring connects the interior of the moving rod 8 and the end of the telescopic rod 9. The spring inside the moving rod 8 has a thrust on the telescopic rod 9, so that the telescopic rod 9 extends out of the interior of the moving rod 8. A limit block 32 is fixed at the end of the moving rod 8, and the limit block 32 moves with the moving rod 8. The U-shaped rod 33 is fixed to the surface of the limit block 32, and a spring 34 is inserted at the end of the U-shaped rod 33. The spring 34 can move telescopically inside the U-shaped rod 33. A plug-in rod 35 is arranged on the surface of the spring 34. One end of the plug-in rod 35 is connected to the end of the U-shaped rod 33 and the surface of the fixed plate 7. The spring 34 has a pulling force on the U-shaped rod 33, so that the U-shaped rod 33 is wrapped around the outside of the plug-in rod 35. The bottom of the first heating chamber 1 is fixed with a first bottom plate 11, and a slide groove 12 is fixed on the surface of the first bottom plate 11. The surface of the slide groove 12 is inserted The second heated chamber 2 is provided with a sliding plate 13, which can move on the surface of the slide groove 12. A second bottom plate 16 is fixed to the bottom of the second heated chamber 2. A pulley 15 is arranged at the bottom of the second bottom plate 16. The pulley 15 is provided with multiple groups. The pulley 15 can roll at the bottom of the second bottom plate 16. The end of the sliding plate 13 is connected to the surface of the second bottom plate 16. The sliding plate 13 moves with the second bottom plate 16, and the second heated chamber 2 moves with the second bottom plate 16. A handle 14 is fixed to the surface of the second heated chamber 2. Pulling the handle 14 makes the second heated chamber 2 move. 2 is moved, the second heated chamber 2 is away from the surface of the first heated chamber 1, and a second fixing ring 27 is fixed to the end of the sleeve pipe 24. After the sleeve pipe 24 is sleeved on the surfaces of the two groups of pipes 3, the second fixing ring 27 is supported on the surface of the first fixing ring 19 on the surface of the pipe 3. The first fixing ring 19 and the second fixing ring 27 can be fixed by a screw. The screws on the surfaces of the second fixing ring 27 and the first fixing ring 19 are removed, and the sleeve pipe 24 is retracted into the connecting pipe 20. The two groups of pipes 3 can be separated and the carbon deposits inside the pipes 3 can be cleaned.

[0036] A limit plate 10 is fixed to the end of the telescopic rod 9, and a sleeve ring 17 is sleeved on the surface of the limit plate 10. The sleeve ring 17 moves with the telescopic rod 9 and is fixed to the surface of the pipe 3. First fixing rings 19 are fixed to the surfaces of both ends of the pipe 3. Threaded holes are provided on the surface of the first fixing ring 19. The end of the connecting pipe 20 is connected to other equipment. A plug-in groove 26 is provided at the end of the connecting pipe 20. The sleeve pipe 24 is plugged into the plug-in groove 26. The sleeve pipe 24 can move in the plug-in groove 26. A spring is provided inside the plug-in groove 26. The spring connects the inside of the plug-in groove 26 and the end of the sleeve pipe 24. The spring inside the plug-in groove 26 has a pulling force on the sleeve pipe 24, so that the sleeve pipe 24 is retracted into the inside of the plug-in groove 26.

[0037] When cleaning the carbon deposits inside the pipe 3, the screws screwed on the surfaces of the first heating chamber 1 and the second heating chamber 2 are loosened to separate the first heating chamber 1 and the second heating chamber 2, and the sliding plate 13 moves in the slide groove 12. The bottom of the second heating chamber 2 is provided with a pulley 15 so that the second heating chamber 2 can move. After the second heating chamber 2 is separated from the first heating chamber 1, the spring 34 pulls the U-shaped rod 33 so that the U-shaped rod 33 is sleeved on the surface of the plug-in rod 35, and the moving rod 8 extends to the first heating chamber 1 and the second heating chamber 2. The telescopic rod 9 extends from the moving rod 8, a sleeve ring 17 is suspended on the surface of the limit plate 10 at the end of the telescopic rod 9, and a pipe 3 is arranged at the bottom of the sleeve ring 17, so that the pipe 3 is suspended between the first heating chamber 1 and the second heating chamber 2, and the pipe 3 is pushed from the clamping groove 4 on the surface of the first heating chamber 1 and the second heating chamber 2, and a supporting block 6 is arranged in the clamping groove 4 for pushing the pipe 3, so that the two groups of pipes 3 are closely fitted together, and the surface of the first heating chamber 1 and the second heating chamber 2 The surface is provided with a sealing strip 5 to play a sealing role. After the first heated chamber 1 and the second heated chamber 2 are separated, the top holding plate 18 is no longer held on the surface of the force-bearing plate 25, so that the sleeve pipe 24 is retracted into the interior of the connecting pipe 20, the second fixing ring 27 and the screw on the surface of the first fixing ring 19 are removed, and the sleeve pipe 24 is retracted into the connecting pipe 20. The two groups of pipes 3 can be separated, which is convenient for cleaning the carbon deposits inside the pipes 3. When the first heated chamber 1 and the second heated chamber 2 are close to each other, the top holding plate 18 is held on the force-bearing plate 25. The surface of the plate 25 allows the sleeve tube 24 to extend from the connecting tube 20 and be sleeved on the surfaces of the two groups of pipes 3, and the force-bearing plate 25 can be inserted into the through groove 21. The supporting plate 18 continues to move, and the elastic band 23 is stretched on the surface of the sleeve tube 24, so that the sleeve tube 24 is supported on the surface of the inflatable cushion 31, so that the air inside the inflatable cushion 31 enters the sealing tube 30 through the cross tube 29. The sealing tube 30 is supported between the connecting tube 20 and the force-bearing plate 25, and the plug-in groove 26 is sealed.

[0038] Although the above describes the illustrative specific implementation methods of the present application so that technicians in this technical field can understand the present application, the present application is not limited to the scope of the specific implementation methods. For ordinary technicians in this technical field, as long as various changes are within the spirit and scope of the present application defined and determined by the attached claims, all application creations using the concept of the present application are protected.

Claims

1. An energy-saving gas-fired condensing boiler that is easy to maintain, characterized in that: include: A first heating chamber (1), wherein a second heating chamber (2) is arranged at an end of the first heating chamber (1); A pipe (3), a first fixing ring (19) is arranged at the end of the pipe (3), a top holding plate (18) is fixed on the surface of the first heating chamber (1), a sleeve pipe (24) is arranged at the end of the pipe (3), a connecting pipe (20) is arranged at the end of the sleeve pipe (24), a plug-in groove (26) is opened on the surface of the connecting pipe (20), a force-bearing plate (25) is fixed on the surface of the sleeve pipe (24); and an arc groove (22) is arranged on the surface of the top holding plate (18).

2. The energy-saving gas condensing boiler that is easy to maintain according to claim 1 is characterized in that: A fixing plate (7) is fixed on the surface of the first heating chamber (1), and a threaded hole is provided on the surface of the fixing plate (7). A sealing strip (5) is provided on the surface of the first heating chamber (1). A clamping groove (4) is provided on the surface of the first heating chamber (1), and a supporting block (6) is provided inside the clamping groove (4). A plurality of supporting blocks (6) are provided. A pipe (3) is provided between the first heating chamber (1) and the second heating chamber (2). Two groups of pipes (3) are provided. The pipes (3) can be placed in the clamping groove (4), and the supporting blocks (6) are supported on the surface of the pipes (3). After the first heating chamber (1) and the second heating chamber (2) are combined, the supporting blocks (6) are supported on the surface of the pipes (3), so that the two groups of pipes (3) are fitted together.

3. The energy-saving gas condensing boiler that is easy to maintain according to claim 2 is characterized in that: A moving rod (8) is inserted into the interior of the first heating chamber (1) and the second heating chamber (2), and the moving rod (8) can move inside the first heating chamber (1) and the second heating chamber (2). A telescopic rod (9) is inserted into the end of the moving rod (8), and the telescopic rod (9) can telescope and move inside the moving rod (8). A spring is arranged inside the telescopic rod (9), and the spring connects the interior of the moving rod (8) and the end of the telescopic rod (9). The spring inside the moving rod (8) has a thrust on the telescopic rod (9), so that the telescopic rod (9) extends out of the interior of the moving rod (8).

4. The energy-saving gas condensing boiler that is easy to maintain according to claim 3 is characterized in that: The end of the telescopic rod (9) is fixed with a limit plate (10), the surface of the limit plate (10) is sleeved with a sleeve ring (17), the sleeve ring (17) moves with the telescopic rod (9), the sleeve ring (17) is fixed to the surface of the pipe (3), the surfaces of both ends of the pipe (3) are fixed with first fixing rings (19), the surface of the first fixing ring (19) is provided with a threaded hole, the end of the connecting pipe (20) is connected to other equipment, the end of the connecting pipe (20) is provided with a plug-in groove (26), the sleeve pipe (24) is inserted into the plug-in groove (26), the sleeve pipe (24) can move in the plug-in groove (26), a spring is arranged inside the plug-in groove (26), the spring connects the inside of the plug-in groove (26) and the end of the sleeve pipe (24), the spring inside the plug-in groove (26) has a pulling force on the sleeve pipe (24), so that the sleeve pipe (24) is retracted into the inside of the plug-in groove (26).

5. The energy-saving gas condensing boiler that is easy to maintain according to claim 4 is characterized in that: Two groups of force-bearing plates (25) are fixed, and the two groups of force-bearing plates (25) are symmetrically fixed on the surface of the sleeve tube (24). The force-bearing plates (25) move along with the sleeve tube (24). The surfaces of the first heating chamber (1) and the second heating chamber (2) are fixed with a top holding plate (18), and a through groove (21) is provided on the surface of the top holding plate (18). An arc groove (22) is provided at the end of the top holding plate (18), and an elastic belt (23) is arranged in the arc groove (22). The elastic belt (23) is elastic.

6. The energy-saving gas condensing boiler that is easy to maintain according to claim 5 is characterized in that: An inflatable cushion (31) is arranged in the arc groove (22), the interior of the inflatable cushion (31) is empty, the end of the inflatable cushion (31) is connected to the transverse tube (29), the interior of the transverse tube (29) is communicated with the interior of the inflatable cushion (31), an extension plate (28) is fixed to the surface of the top holding plate (18), a sealing tube (30) is arranged at the end of the extension plate (28), the interior of the sealing tube (30) is communicated with the interior of the transverse tube (29), and the air inside the inflatable cushion (31) can enter the interior of the sealing tube (30) through the transverse tube (29).

7. The energy-saving gas condensing boiler that is easy to maintain according to claim 6 is characterized by: A limit block (32) is fixed at the end of the moving rod (8), and the limit block (32) moves with the moving rod (8). A U-shaped rod (33) is fixed on the surface of the limit block (32), and a spring (34) is inserted at the end of the U-shaped rod (33). The spring (34) can be telescopically moved inside the U-shaped rod (33). A plug-in rod (35) is arranged on the surface of the spring (34), and one end of the plug-in rod (35) is connected to the end of the U-shaped rod (33) and the surface of the fixed plate (7). The spring (34) has a pulling force on the U-shaped rod (33), so that the U-shaped rod (33) is wrapped around the outside of the plug-in rod (35).

8. The energy-saving gas condensing boiler that is easy to maintain according to claim 7 is characterized in that: A first bottom plate (11) is fixed at the bottom of the first heated chamber (1), a slide groove (12) is fixed on the surface of the first bottom plate (11), a sliding plate (13) is inserted into the surface of the slide groove (12), and the sliding plate (13) can move on the surface of the slide groove (12); a second bottom plate (16) is fixed at the bottom of the second heated chamber (2), a pulley (15) is arranged at the bottom of the second bottom plate (16), and the pulley (15) is arranged in multiple groups, and the pulley (15) can roll at the bottom of the second bottom plate (16).

9. The energy-saving gas condensing boiler that is easy to maintain according to claim 8 is characterized in that: The end of the sliding plate (13) is connected to the surface of the second bottom plate (16), the sliding plate (13) moves along with the second bottom plate (16), and the second heating chamber (2) moves along with the second bottom plate (16).

10. The energy-saving gas condensing boiler that is easy to maintain according to claim 9, characterized in that: A handle (14) is fixed on the surface of the second heating chamber (2). By pulling the handle (14), the second heating chamber (2) is moved so that the second heating chamber (2) is away from the surface of the first heating chamber (1). A second fixing ring (27) is fixed to the end of the sleeve tube (24). After the sleeve tube (24) is sleeved on the surfaces of the two groups of pipes (3), the second fixing ring (27) is supported on the surface of the first fixing ring (19) on the surface of the pipe (3). The first fixing ring (19) and the second fixing ring (27) can be fixed by a screw. The screws on the surfaces of the second fixing ring (27) and the first fixing ring (19) are removed, and the sleeve tube (24) is retracted into the connecting tube (20). The two groups of pipes (3) can be separated, so that carbon deposits inside the pipes (3) can be cleaned.

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