A condensing gas wall-mounted boiler

Abstract

The present invention relates to the technical field of gas wall-mounted boilers, and specifically to a condensing gas wall-mounted boiler, comprising a box body, a combustion mechanism and a preheating mechanism. An array mounting mechanism is fixedly connected to the back of the box body, the combustion mechanism is fixedly mounted on the inner wall of the box body, a nozzle chamber is provided on the right side wall of the combustion mechanism, the nozzle chamber is communicated with the preheating mechanism, a cleaning mechanism is arranged in the nozzle chamber, and the cleaning mechanism is equipped with an auxiliary module. The present invention uses a cleaning mechanism to clean a heat exchange plate using high-temperature steam, thereby extending the service life of the heat exchange plate. An auxiliary module is provided to periodically replenish water in an evaporation chamber using high-temperature steam, thereby ensuring a stable water level in the evaporation chamber. An mounting mechanism is provided to use the dead weight of the box body for installation and fixation, thereby avoiding the problem of the box body falling off during the installation process due to complex installation.

Description

Technical Field

[0001] The invention relates to the technical field of gas wall-mounted boilers, in particular to a condensing gas wall-mounted boiler. Background Art

[0002] The prior art discloses a condensing gas wall-mounted boiler with a patent number of CN111365853A, which includes a combustion mechanism, a heating mechanism, a pressurizing mechanism and a water exchange mechanism. The pressurizing mechanism can utilize the heat generated by the combustion mechanism to be transferred to the steam chamber through the main heat exchanger, and utilize the high-temperature steam generated by the steam chamber to pressurize the hot water in the hot water pipe, thereby preventing the air from flowing back due to insufficient water flow in the hot water pipe and generating noise. The preheating mechanism can utilize the remaining heat in the flue gas after combustion to preheat the cold water entering the gas furnace and then convert it into warm water to enter the combustion mechanism, thereby shortening the heating time and saving the gas usage.

[0003] However, after the moisture in the evaporation chamber of the above-mentioned condensing gas wall-mounted boiler is evaporated, water cannot be added to the evaporation chamber, and the heat exchange plate of the preheating mechanism will be contaminated with dust in the flue gas. After long-term use, the accumulation of dust will inevitably hinder the heat transfer of the heat exchange plate, which greatly reduces the preheating effect of the preheating mechanism on water. In addition, the installation process of the traditional wall-mounted boiler is cumbersome and inconvenient to disassemble, which can easily cause the wall-mounted boiler to fall. In order to solve the above problems, we propose a box-type water purifier. Summary of the invention

[0004] The object of the present invention is to provide a condensing gas wall-mounted boiler, which uses a cleaning mechanism to clean the heat exchange plate, uses an auxiliary module to achieve periodic water replenishment of the evaporation chamber, and uses an installation mechanism to fix the wall-mounted boiler box to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a condensing gas wall-mounted boiler, comprising a box body, a combustion mechanism and a preheating mechanism, an array mounting mechanism fixedly connected to the back of the box body, the combustion mechanism fixedly mounted on the inner wall of the box body, a nozzle chamber is provided on the right side wall of the combustion mechanism, the nozzle chamber is connected to the preheating mechanism, a cleaning mechanism is arranged in the nozzle chamber, the cleaning mechanism is equipped with an auxiliary module, a first travel switch is fixedly mounted on the top end of the nozzle chamber, and a second travel switch is fixedly mounted on the bottom end of the nozzle chamber.

[0006] Preferably, the mounting mechanism includes a rectangular bar, two mounting blocks are provided on the top and bottom of the rectangular bar, assembly holes are provided on the mounting blocks, several rectangular plates are fixedly connected to the outer surface of the rectangular bar, rectangular blocks are fixedly installed on the outer surfaces of several rectangular plates, a round rod is provided on the rectangular block, two cross rods are provided on the side of the round rod away from the rectangular bar, mounting plates are fixedly installed at the ends of the two cross rods, and the two mounting plates are fixedly connected together with screws and the box body.

[0007] Preferably, a sliding hole with an open top is provided on the rectangular block, a semicircular hole is provided at the end of the sliding hole, a clamping column is provided on the bottom inner wall of the semicircular hole, a clamping groove is provided on the bottom inner wall of the round rod, the clamping column and the clamping groove are adapted to each other, and a rubber pad is fixedly installed on the bottom inner wall of the semicircular hole, and the round rod passes through the semicircular hole and contacts the bottom rubber pad of the semicircular hole.

[0008] Preferably, the inner diameter of the sliding hole is equal to the inner diameter of the semicircular hole, and the diameter of the round rod is equal to the inner diameter of the semicircular hole.

[0009] Preferably, a heat exchanger is provided inside the combustion mechanism, an evaporation chamber is fixedly installed on the upper surface of the heat exchanger, a plurality of steam pipes are fixedly connected to the top of the evaporation chamber, the top surfaces of the plurality of steam pipes are fixedly connected to the upper bottom surface inside the combustion mechanism, air outlet holes are opened on the right walls of the plurality of steam pipes, springs are installed on the upper bottom surfaces of the plurality of steam pipes, a steam piston is installed on the bottom end of the spring, and the steam piston is adapted to the inner wall of the steam pipe.

[0010] Preferably, the cleaning mechanism includes a steam chamber, which is slidably installed in the nozzle chamber, the right end of the steam chamber is connected to an air pipe, the left end of the air pipe is fixedly connected to the inner wall of the air outlet, and the middle section of the air pipe is fixedly connected to a support frame, the top of the support frame is fixedly connected to the upper bottom surface inside the combustion mechanism, and multiple rows of nozzles are fixedly installed on the right surface of the steam chamber.

[0011] Preferably, the auxiliary module includes a cylinder, in which a first piston is slidably installed, the first piston divides the cylinder into two upper and lower air intake chambers, the upper end of the first piston is a first air intake chamber, the upper end of the first air intake chamber is connected to a first air intake pipe, the left end of the first air intake pipe is connected to an evaporation chamber, and a first solenoid valve is provided on the first air intake pipe, and the right side of the first air intake chamber is connected to a first exhaust pipe, the first exhaust pipe is provided with a second solenoid valve, the right end of the first exhaust pipe is connected to the steam chamber, the lower end of the first piston is a second air intake chamber, the lower end of the second air intake chamber is connected to a second air intake pipe, the left end of the second air intake pipe is connected to the evaporation chamber, and a third solenoid valve is provided on the second air intake pipe. , and the right side of the second air inlet chamber is connected with a second exhaust pipe, the second exhaust pipe is provided with a fourth solenoid valve, the right end of the second exhaust pipe is connected to the steam chamber, the top surface of the first piston is fixedly connected with a connecting rod, the right end of the horizontal part of the connecting rod is fixedly connected to the left surface of the steam chamber, the lower surface of the first piston is fixedly connected with a piston rod, the bottom end of the piston rod is fixedly connected with a second piston, the second piston is slidably connected in the water absorption chamber, the left corner of the water absorption chamber is connected with a water inlet pipe, the end of the water inlet pipe is connected to the evaporation chamber, and a first one-way valve is provided on the water inlet pipe, the lower end of the water absorption chamber is connected with a water extraction pipe, the water extraction pipe is provided with a second one-way valve, and the bottom end of the water extraction pipe is connected to the heating pipe.

[0012] Preferably, a sliding groove is provided on the left end surface of the nozzle chamber, the sliding groove passes through the left end surface of the nozzle chamber, and the steam chamber is slidably connected in the sliding groove.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The present invention uses the high-temperature and high-pressure water vapor generated in the evaporation chamber to clean the dust on the heat exchange plate by setting a cleaning mechanism, thereby extending the service life of the heat exchange plate and ensuring the preheating effect of the preheating mechanism.

[0015] 2. The present invention fixes the box body by using the deadweight of the box body through the installation mechanism, and the operation is simple and the mechanism is reliable, thus avoiding the problem of the box body falling during the installation process due to complicated installation.

[0016] 3. The present invention arranges an auxiliary module and utilizes the high-temperature and high-pressure water vapor generated in the evaporation chamber to drive the piston to move up and down to achieve periodic water replenishment of the evaporation chamber, thereby ensuring the stability of the water level in the evaporation chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention;

[0018] Figure 2 It is a structural diagram of the installation mechanism of the present invention;

[0019] Figure 3 It is a cross-sectional view of a rectangular block and a round rod of the present invention;

[0020] Figure 4 It is a schematic diagram of the structure of the cleaning mechanism and the auxiliary module of the present invention;

[0021] Figure 5 for Figure 4 A partial enlarged view of part A.

[0022] In the figure: box 1, combustion mechanism 2, preheating mechanism 3, installation mechanism 4, rectangular bar 41, installation block 42, assembly hole 43, rectangular plate 44, rectangular block 45, sliding hole 451, semicircular hole 452, clamping column 453, rubber pad 454, round rod 46, round rod 46, clamping groove 461, cross bar 47, installation plate 48, nozzle chamber 5, first stroke switch 51, second stroke switch 52, steam chamber 61, gas pipe 62, support frame 63, nozzle 64, auxiliary module 7, cylinder 71, first piston 72, first inlet Air cavity 73, first air inlet pipe 74, first solenoid valve 75, first exhaust pipe 76, second solenoid valve 77, second air inlet cavity 78, second air inlet pipe 79, third solenoid valve 710, fourth solenoid valve 711, connecting rod 712, piston rod 713, second piston 714, water suction cavity 715, water inlet pipe 716, first one-way valve 717, water extraction pipe 718, second one-way valve 719, second exhaust pipe 720, evaporation chamber 9, steam pipe 91, air outlet 92, spring 93, steam piston 94, heating tube 10. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on 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.

[0024] Please refer to Figures 1 to 5. The present invention provides a condensing gas wall-mounted boiler, including a box body 1, a combustion mechanism 2 and a preheating mechanism 3. An array mounting mechanism 4 is fixedly connected to the back of the box body 1. The mounting mechanism 4 can use the deadweight of the wall-mounted boiler to fix the gas stove on the wall. The combustion mechanism 2 is fixedly mounted on the inner wall of the box body 1. The combustion mechanism 2 and the preheating mechanism 3 are prior arts and are not described in detail herein. A nozzle chamber 5 is provided on the right side wall of the combustion mechanism 2. The nozzle chamber 5 is connected to the preheating mechanism 3. A cleaning mechanism is arranged in the nozzle chamber 5. The cleaning mechanism can use the high-temperature water vapor generated by the combustion mechanism 2 to clean the preheating mechanism 3. The cleaning mechanism is configured with an auxiliary module 7, and a first travel switch 51 is fixedly mounted on the top of the nozzle chamber 5, and a second travel switch 52 is fixedly mounted on the bottom of the nozzle chamber 5.

[0025] Specifically, the mounting mechanism 4 includes a rectangular bar 41, and two mounting blocks 42 are provided at the top and bottom of the rectangular bar 41. The mounting blocks 42 are provided with assembly holes 43. Several rectangular plates 44 are fixedly connected to the outer surface of the rectangular bar 41, and rectangular blocks 45 are fixedly installed on the outer surfaces of the several rectangular plates 44. During installation, the side of the rectangular bar 41 without the rectangular plates 44 is pressed against the wall, and rivets are driven into the assembly holes 43 to fix the mounting plates on the wall. A round rod 46 is provided on the rectangular block 45, and two cross bars 47 are provided on the side of the round rod 46 away from the rectangular bar 41. The ends of the two cross bars 47 are fixedly installed with mounting plates 48. Four threaded holes are arranged circumferentially on the mounting plate 48, and four threaded holes are also provided at positions corresponding to the four threaded holes on the back of the box body 1. During installation, the round rod 46 can be fixed to the back of the box body 1 by bolt connection.

[0026] Specifically, the rectangular block 45 is provided with a sliding hole 451 with an opening at the top, a semicircular hole 452 is provided at the end of the sliding hole 451, a clamping column 453 is provided on the bottom inner wall of the semicircular hole 452, a clamping groove 461 is provided on the bottom inner wall of the round rod 46, the clamping column 453 and the clamping groove 461 are adapted, and a rubber pad 454 is fixedly installed on the bottom inner wall of the semicircular hole 452, the round rod 46 passes through the semicircular hole 452 and contacts the rubber pad 454 at the bottom of the semicircular hole 452. When installing, the round rod 46 is clamped into the sliding hole 451, and the round rod 46 will slide into the semicircular hole 452 under the drive of the wall-mounted boiler's own gravity. , then the clamping column 453 is clamped into the clamping groove 461 on the round rod 46, so that the round rod 46 and the rectangular block 45 are fixedly connected together. When removing the wall-mounted boiler, it is only necessary to pull the round rod 46 upward to drive the round rod 46 to slide out of the semicircular hole 452 and the sliding hole 451, thereby separating the round rod 46 and the rectangular block 45, and thus separating the box 1 from the mounting mechanism 4. The provision of the rubber pad 454 can increase the friction between the round rod 46 and the semicircular hole 452, thereby avoiding the problem that the clamping groove 461 on the round rod 46 falls off from the clamping column 453 of the rectangular plate 44 due to working vibration, resulting in unstable installation and shaking of the box 1.

[0027] Specifically, the inner diameter of the sliding hole 451 is equal to the inner diameter of the semicircular hole 452 , and the diameter of the round rod 46 is equal to the inner diameter of the semicircular hole 452 .

[0028] Specifically, a heat exchanger is provided inside the combustion mechanism 2, and an evaporation chamber 9 is fixedly installed on the upper surface of the heat exchanger. A plurality of steam pipes 91 are fixedly connected to the top of the evaporation chamber 9. The top surfaces of the plurality of steam pipes 91 are fixedly connected to the upper bottom surface inside the combustion mechanism 2. Air outlet holes 92 are opened on the right walls of the plurality of steam pipes 91. Springs 93 are installed on the upper bottom surfaces of the plurality of steam pipes 91. A steam piston 94 is installed at the bottom end of the spring 93. The steam piston 94 is adapted to the inner wall of the steam pipe 91. The evaporation chamber 9 can use excess heat to heat water to boil the water and generate high-temperature steam. As the water vapor continues to increase, the pressure in the steam chamber 61 increases, and the high-pressure water vapor will push the piston to move upward. When the piston moves to the position of the hole in the side wall, the high-pressure water vapor is ejected from the hole to form a high-pressure steam airflow, providing a power source for the subsequent cleaning mechanism.

[0029] Specifically, the cleaning mechanism includes a steam chamber 61, which is slidably installed in the nozzle chamber 5, and the right end of the steam chamber 61 is connected to an air pipe 62, the left end of the air pipe 62 is fixedly connected to the inner wall of the air outlet 92, and the middle section of the air pipe 62 is fixedly connected to a support frame 63, the top of the support frame 63 is fixedly connected to the upper bottom surface inside the combustion mechanism 2, and multiple rows of nozzles 64 are fixedly installed on the right surface of the steam chamber 61. The high-pressure steam airflow generated by the evaporation chamber 9 passes into the steam chamber 61 through the air pipe 62, and is sprayed from the multiple rows of nozzles 64 in the steam chamber 61 to wash the heat exchange plate of the preheating mechanism 3. On the one hand, the steam airflow can blow off large particles of dust and discharge them out of the pipeline together with the flue gas, and on the other hand, the water droplets in the steam can absorb small particles of dust and discharge them out of the pipeline together with the airflow.

[0030] Specifically, the auxiliary module 7 includes a cylinder 71, in which a first piston 72 is slidably installed, and the first piston 72 divides the cylinder 71 into two upper and lower air intake chambers. The upper end of the first piston 72 is a first air intake chamber 73, and the upper end of the first air intake chamber 73 is connected to a first air intake pipe 74, and the left end of the first air intake pipe 74 is connected to the evaporation chamber 9, and a first solenoid valve 75 is provided on the first air intake pipe 74, and the right side of the first air intake chamber 73 is connected to a first exhaust pipe 76, and the first exhaust pipe 76 is provided with a second solenoid valve 77, and the right end of the first exhaust pipe 76 is connected to the steam chamber 61, and the lower end of the first piston 72 is a second air intake chamber 78, and the lower end of the second air intake chamber 78 is connected to a second air intake pipe 79, and the left end of the second air intake pipe 79 is connected to the evaporation chamber 9, and the second air intake pipe 79 is provided with a third solenoid valve 710, and the right side of the second air intake chamber 78 A second exhaust pipe 720 is connected, and a fourth solenoid valve 711 is provided on the second exhaust pipe 720. The right end of the second exhaust pipe 720 is connected to the steam chamber 61. A connecting rod 712 is fixedly connected to the top surface of the first piston 72. The right end of the horizontal part of the connecting rod 712 is fixedly connected to the left surface of the steam chamber 61. A piston rod 713 is fixedly connected to the lower surface of the first piston 72. A second piston 714 is fixedly connected to the bottom end of the piston rod 713. The second piston 714 is slidably connected in the water absorption chamber 715. A water inlet pipe 716 is connected to the left corner of the water absorption chamber 715. The end of the water inlet pipe 716 is connected to the evaporation chamber 9, and a first one-way valve 717 is provided on the water inlet pipe 716. A water extraction pipe 718 is connected to the lower end of the water absorption chamber 715. A second one-way valve 719 is provided on the water extraction pipe 718. The bottom end of the water extraction pipe 718 is connected to the heating pipe 10.In the initial state, the first stroke switch 51 is closed and the second stroke switch 52 is open. At this time, the first solenoid valve 75 and the fourth solenoid valve 711 are open, and the third solenoid valve 710 and the second solenoid valve 77 are closed. High-temperature steam will enter the first air cavity from the first air inlet pipe 74, pushing the first piston 72 to move downward. On the one hand, the downward movement of the first piston 72 will drive the steam chamber 61 to move downward through the connecting rod, and then drive the nozzle 64 to move downward. On the other hand, the downward movement of the first piston 72 will push the second piston 714 to move downward to the bottom of the water absorption chamber 715 through the piston rod 713 to prepare for subsequent water absorption. When the steam chamber 61 moves to the lowest end, the first stroke switch 51 is opened and the second stroke switch 52 is closed. At this time, the third solenoid valve 710 and the second solenoid valve 77 are opened, and the first solenoid valve 75 and the fourth solenoid valve 711 are closed. High-temperature steam The steam will enter the second air cavity from the second air inlet pipe 79, pushing the first piston 72 to move upward. On the one hand, the upward movement of the first piston 72 will drive the steam chamber 61 to move upward through the connecting rod, and then drive the nozzle 64 to move upward. On the other hand, the upward movement of the first piston 72 will pull the second piston 714 upward through the piston rod 713 to draw the hot water in the heating tube 10 into the water absorption cavity 715. Under the action of the second one-way valve 719, the water will stay in the water absorption cavity 715. When the steam chamber 61 moves to the top again, the movement direction of the piston is reversed again under the action of the solenoid valve. At this time, the second piston 714 moves downward to press the hot water in the water absorption cavity 715 into the evaporation chamber 9, thereby realizing periodic water replenishment, and the up and down movement of the first piston 72 drives multiple rows of bumpers to move up and down, thereby increasing the cleaning area and cleaning all the heat exchange plates.

[0031] Working principle: During installation, the round rod 46 is inserted into the sliding hole 451, and the clamping column 453 is inserted into the clamping groove 461 on the round rod 46, so that the round rod 46 and the rectangular block 45 are fixedly connected together, and the box body 1 can be fixed on the wall. When removing the wall-mounted boiler, it is only necessary to pull the round rod 46 upward to drive the round rod 46 to slide out from the semicircular hole 452 and the sliding hole 451, thereby separating the round rod 46 and the rectangular block 45, thereby separating the box body 1 from the installation mechanism 4. In the initial working state, the first stroke switch 51 is closed and the second stroke switch 52 is opened. At this time, the first solenoid valve 75 and the fourth solenoid valve 711 are opened, and the third solenoid valve 710 and the second solenoid valve 77 are closed. Steam will enter the first air cavity from the first air inlet pipe 74, pushing the first piston 72 to move downward. On the one hand, the downward movement of the first piston 72 will drive the nozzle 64 to move downward through the connecting rod, and on the other hand, the downward movement of the first piston 72 will push the second piston 7 through the piston rod 713 14 moves downward to the bottom of the water absorption chamber 715 to prepare for subsequent water absorption. When the steam chamber 61 moves to the lowest end, the first stroke switch 51 is opened and the second stroke switch 52 is closed. At this time, the third solenoid valve 710 and the second solenoid valve 77 are opened, and the first solenoid valve 75 and the fourth solenoid valve 711 are closed. High-temperature steam will enter the second air chamber from the second air inlet pipe 79, pushing the first piston 72 to move upward. On the one hand, the upward movement of the first piston 72 will drive the steam chamber 61 to move upward through the connecting rod, and then drive the nozzle 64 to move upward. On the other hand, the upward movement of the first piston 72 will pull the second piston 714 upward through the piston rod 713 to draw the hot water in the heating tube 10 into the water absorption chamber 715. When the steam chamber 61 moves to the top again, the direction of piston movement is reversed again under the action of the solenoid valve. At this time, the second piston 714 moves downward to press the hot water in the water absorption chamber 715 into the evaporation chamber 9, thereby realizing periodic water replenishment.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A condensing gas wall-mounted boiler, comprising a housing (1), a combustion mechanism (2) and a preheating mechanism (3), characterized in that: The back of the housing (1) is fixedly connected to an array mounting mechanism (4); the combustion mechanism (2) is fixedly mounted on the inner wall of the housing (1); a nozzle chamber (5) is provided on the right side wall of the combustion mechanism (2); the nozzle chamber (5) is connected to the preheating mechanism (3); a cleaning mechanism is provided in the nozzle chamber (5); the cleaning mechanism is provided with an auxiliary module (7); a first travel switch (51) is fixedly mounted on the top end of the nozzle chamber (5); and a second travel switch (52) is fixedly mounted on the bottom end of the nozzle chamber (5); A heat exchanger is arranged inside the combustion mechanism (2), an evaporation chamber (9) is fixedly mounted on the upper surface of the heat exchanger, a plurality of steam pipes (91) are fixedly connected to the top of the evaporation chamber (9), the top surfaces of the plurality of steam pipes (91) are fixedly connected to the upper bottom surface inside the combustion mechanism (2), a plurality of air outlet holes (92) are opened on the right walls of the plurality of steam pipes (91), a spring (93) is mounted on the upper bottom surface inside the plurality of steam pipes (91), a steam piston (94) is mounted on the bottom end of the spring (93), and the steam piston (94) is matched with the inner wall of the steam pipe (91); The cleaning mechanism comprises a steam chamber (61), the steam chamber (61) is slidably mounted in the nozzle chamber (5), the right end of the steam chamber (61) is connected to an air supply pipe (62), the left end of the air supply pipe (62) is fixedly connected to the inner wall of the air outlet hole (92), and the middle section of the air supply pipe (62) is fixedly connected to a support frame (63), the top end of the support frame (63) is fixedly connected to the upper bottom surface inside the combustion mechanism (2), and a plurality of rows of nozzles (64) are fixedly mounted on the right surface of the steam chamber (61); The auxiliary module (7) comprises a cylinder (71), a first piston (72) is slidably mounted in the cylinder (71), the first piston (72) divides the cylinder (71) into two upper and lower air intake chambers, the upper end of the first piston (72) is a first air intake chamber (73), the upper end of the first air intake chamber (73) is connected to a first air intake pipe (74), the left end of the first air intake pipe (74) is connected to the evaporation chamber (9), and a first solenoid valve (75) is arranged on the first air intake pipe (74), and the first air intake chamber (73) is connected to the evaporation chamber (9). 3) The right side is connected to a first exhaust pipe (76), a second electromagnetic valve (77) is arranged on the first exhaust pipe (76), the right end of the first exhaust pipe (76) is connected to the steam chamber (61), the lower end of the first piston (72) is a second air intake chamber (78), the lower end of the second air intake chamber (78) is connected to a second air intake pipe (79), the left end of the second air intake pipe (79) is connected to the evaporation chamber (9), and a third electromagnetic valve (710) is arranged on the second air intake pipe (79), and the second air intake chamber (78) The right side is connected to a second exhaust pipe (720), a fourth solenoid valve (711) is arranged on the second exhaust pipe (720), the right end of the second exhaust pipe (720) is connected to the steam chamber (61), the top surface of the first piston (72) is fixedly connected to a connecting rod (712), the right end of the horizontal part of the connecting rod (712) is fixedly connected to the left surface of the steam chamber (61), the lower surface of the first piston (72) is fixedly connected to a piston rod (713), the bottom end of the piston rod (713) is fixedly connected to the second piston (71 4), the second piston (714) is slidably connected in the water absorption chamber (715), the left corner of the water absorption chamber (715) is connected to a water inlet pipe (716), the end of the water inlet pipe (716) is connected to the evaporation chamber (9), and a first one-way valve (717) is provided on the water inlet pipe (716), the lower end of the water absorption chamber (715) is connected to a water extraction pipe (718), the water extraction pipe (718) is provided with a second one-way valve (719), and the bottom end of the water extraction pipe (718) is connected to the heating pipe (10); In the initial state, the first stroke switch (51) is closed and the second stroke switch (52) is open. At this time, the first solenoid valve (75) and the fourth solenoid valve (711) are open, and the third solenoid valve (710) and the second solenoid valve (77) are closed. High-temperature steam enters the first air cavity from the first air inlet pipe (74) to push the first piston (72) to move downward. On the one hand, the downward movement of the first piston (72) drives the steam chamber (61) to move downward through the connecting rod, thereby driving the nozzle (64) to move downward. On the other hand, the downward movement of the first piston (72) drives the second piston (714) to move downward to the bottom of the water absorption cavity (715) through the piston rod (713) to prepare for subsequent water absorption. When the steam chamber (61) moves to the lowest end, the first stroke switch (51) is opened and the second stroke switch (52) is closed. At this time, the third solenoid valve (710) and the second solenoid valve (77) are opened, and the first solenoid valve (75) and the fourth solenoid valve (711) are closed. When the first piston (72) is closed, high-temperature steam will enter the second air chamber from the second air inlet pipe (79), pushing the first piston (72) to move upward. On the one hand, the upward movement of the first piston (72) will drive the steam chamber (61) to move upward through the connecting rod, thereby driving the nozzle (64) to move upward. On the other hand, the upward movement of the first piston (72) will pull the second piston (714) to move upward through the piston rod (713) to draw the hot water in the heating tube (10) into the water absorption chamber (715). Under the action of the second one-way valve (719), the water will stay in the water absorption chamber (715). When the steam chamber (61) moves to the top again, the direction of piston movement will be reversed again under the action of the solenoid valve. At this time, the second piston (714) moves downward to press the hot water in the water absorption chamber (715) into the evaporation chamber (9), thereby realizing periodic water replenishment. In addition, the up and down movement of the first piston (72) drives the multiple rows of bumpers to move up and down, thereby increasing the cleaning area and cleaning all the heat exchange plates.

2. A condensing gas wall-mounted boiler according to claim 1, characterized in that: The mounting mechanism (4) comprises a rectangular bar (41), two mounting blocks (42) are provided at the top and bottom of the rectangular bar (41), and assembly holes (43) are provided on the mounting blocks (42). A plurality of rectangular plates (44) are fixedly connected to the outer surface of the rectangular bar (41), and rectangular blocks (45) are fixedly installed on the outer surfaces of the plurality of rectangular plates (44). A round rod (46) is provided on the rectangular block (45), and two cross bars (47) are provided on the side of the round rod (46) away from the rectangular bar (41), and mounting plates (48) are fixedly installed at the ends of the two cross bars (47), and the two mounting plates (48) are fixedly connected to the box body (1) by screws.

3. A condensing gas wall-mounted boiler according to claim 2, characterized in that: The rectangular block (45) is provided with a sliding hole (451) with an open top, a semicircular hole (452) is provided at the end of the sliding hole (451), a clamping column (453) is provided on the bottom inner wall of the semicircular hole (452), a clamping groove (461) is provided on the bottom inner wall of the round rod (46), the clamping column (453) and the clamping groove (461) are matched, and a rubber pad (454) is fixedly installed on the bottom inner wall of the semicircular hole (452), and the round rod (46) passes through the semicircular hole (452) and contacts the rubber pad (454) at the bottom of the semicircular hole (452).

4. A condensing gas wall-mounted boiler according to claim 3, characterized in that: The inner diameter of the sliding hole (451) is equal to the inner diameter of the semicircular hole (452), and the diameter of the round rod (46) is equal to the inner diameter of the semicircular hole (452).

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