Energy-saving gas hot water boiler

Abstract

This invention relates to the field of boiler equipment technology, and more particularly to an energy-saving gas-fired hot water boiler. An energy-saving gas-fired hot water boiler includes the boiler itself, with an air inlet pipe and a water outlet pipe on one side of the boiler, and an air outlet pipe and a water inlet pipe on the side of the boiler away from the air inlet pipe. A first fixed shell is fixedly connected to the water inlet pipe, and a rotating shell is rotatably connected to the first fixed shell. Mirror-shaped softening tubes are fixedly connected inside the rotating shell, and ion exchange resin is disposed within each softening tube. A first motor is fixedly connected to the first fixed shell, and a friction wheel is fixedly connected to the output shaft of the first motor. This invention uses the friction wheel and the rotating shell to replace the ion exchange resin in the softening tubes, ensuring the device's effectiveness in softening hard water without affecting its operation. Furthermore, the replaced resin can be replaced with new resin, allowing the device to operate continuously.

Description

Technical Field

[0001] This invention relates to the field of boiler equipment technology, and in particular to an energy-saving gas-fired hot water boiler. Background Technology

[0002] A gas-fired hot water boiler is a device that uses gas as fuel to heat water through the heat energy generated by combustion. These boilers are commonly used in heating and hot water systems, such as for residential heating and industrial heating processes. In existing technologies, to prevent scale buildup in the pipes that could affect the heating efficiency of the gas-fired hot water boiler and the heat transfer efficiency of the heating system, the water added to the boiler and heating system must be softened beforehand to remove calcium and magnesium ions, whether it's the initial water supply or when adding water to the system. A common hard water softening technology is ion exchange resin softening. When hard water passes through the ion exchange resin, calcium ions... The exchange of calcium and magnesium ions with sodium or hydrogen ions on the resin removes calcium and magnesium from the water. Over time, the resin becomes saturated, reducing its softening effect and preventing the complete removal of calcium and magnesium ions from the hard water. If not replaced in time, scale will form inside the pipes. Scale thickens the pipe walls, and its heat transfer efficiency is lower than that of the pipes, thus affecting the heating efficiency of the boiler and the heating system. The current replacement process requires system shutdown and removal of the resin for replacement with new resin, which is not only time-consuming and labor-intensive, but also requires shutdown for each replacement, resulting in accumulated labor costs. Summary of the Invention

[0003] To overcome the drawbacks of needing to shut down the machine for each ion exchange resin replacement, which is time-consuming and labor-intensive, this invention provides an energy-saving gas-fired hot water boiler with automatic replacement capability.

[0004] The technical solution of the present invention is as follows: an energy-saving gas-fired hot water boiler, comprising the boiler, an air inlet pipe and a water outlet pipe on one side of the boiler, an air outlet pipe and a water inlet pipe on the side of the boiler away from the air inlet pipe, a connecting pipe provided on the boiler between the water outlet pipe and the water inlet pipe, a one-way valve provided on both the water inlet pipe and the connecting pipe, a first fixed shell fixedly connected to the water inlet pipe of the boiler, a rotating shell rotatably connected to the first fixed shell, a fixed plate rotatably connected to the side of the rotating shell away from the boiler, and a fixed plate fixedly connected to the side of the fixed plate away from the boiler. The system includes a fixed pipe through which the fixed disc is penetrated. A mirror-distributed softening pipe is fixedly connected inside the rotating shell. Each of the mirror-distributed softening pipes near the first fixed shell is equipped with a one-way valve. The first fixed shell and the fixed pipe are connected through adjacent softening pipes. Ion exchange resin is contained within the softening pipes. A first motor is fixedly connected to the first fixed shell via a mounting block. A friction wheel is fixedly connected to the output shaft of the first motor. The friction wheel engages with the rotating shell through a pressing friction fit. The boiler's exhaust pipe is equipped with a heat exchange mechanism that utilizes waste heat from the exhaust gas.

[0005] As a further preferred embodiment, the rotating shell is provided with a chamber for communicating with the fixed pipe in the switching state, and the rotating shell is provided with drainage pipes distributed in a mirror image.

[0006] As a further preferred embodiment, a rotating block is rotatably connected to the side of the fixed disk away from the first fixed shell, a through hole is provided on the side of the fixed disk away from the fixed tube, a blocking plate is slidably connected to the side of the fixed disk away from the first fixed shell, the blocking plate is fixedly connected to the rotating block, and a through hole is provided on the blocking plate for communicating with the through hole on the fixed disk.

[0007] As a further preferred embodiment, the heat exchange mechanism includes a first connecting pipe connected to an exhaust pipe on the boiler. A first fixing frame is provided on the side of the boiler near the first connecting pipe. A heat exchange shell is fixedly connected to the first fixing frame and to the fixing pipe. A first through hole is provided on the upper side of the heat exchange shell. The heat exchange shell is connected to the end of the first connecting pipe away from the boiler. A threaded plate is provided inside the heat exchange shell and fits against the fixing pipe. A rotating plate is provided on the side of the heat exchange shell away from the boiler.

[0008] As a further preferred embodiment, the system also includes an adjustment mechanism for regulating the heat exchange state. The adjustment mechanism is disposed in the first connecting pipe and includes a rotating rod rotatably connected to the first connecting pipe. A fan blade is fixedly connected to the first connecting pipe and is located inside the first connecting pipe. A blocking frame is slidably connected to the side of the heat exchange shell away from the first fixed frame. A second connecting pipe is fixedly connected to the blocking frame and communicates with the heat exchange shell through the blocking frame and the first through hole. The rotating rod is provided with a transmission component for controlling the sliding distance of the blocking frame.

[0009] As a further preferred embodiment, the flow area of ​​the second connecting pipe is larger than that of the first connecting pipe, in order to ensure the heat exchange state of the heat exchange shell.

[0010] As a further preferred embodiment, the transmission assembly includes a rotating disk fixedly connected to the rotating rod. A ring-shaped array of sliding blocks is slidably connected within the rotating disk. A traction rope is fixedly connected to the side of each sliding block near the rotating rod. The rotating rod is splined to the sliding disk. All the ring-shaped traction ropes are fixedly connected to the sliding disk. A tension spring is provided between the sliding disk and the rotating rod. A sliding frame is rotatably connected to the sliding disk. A second fixed frame is fixedly connected to the first connecting pipe. A fixed frame is fixedly connected to the side of the second fixed frame near the rotating rod. The fixed frame is slidably connected to the sliding frame. A second fixed shell is fixedly connected to the second fixed frame via an mounting ring. A piston rod is slidably connected to the second fixed shell. The piston rod is fixedly connected to the sliding frame near the first connecting pipe. A telescopic rod is fixedly connected to the first connecting pipe via a mounting plate. The telescopic end of the telescopic rod is fixedly connected to the blocking frame. Hydraulic oil is injected into both the telescopic rod and the second fixed shell. The telescopic rod and the second fixed shell are connected via a pipe.

[0011] As a further preferred embodiment, the extension length of the telescopic rod's telescopic end is greater than the axial distance between the first through hole and the fixed tube, in order to ensure the heat exchange range of the heat exchange shell.

[0012] As a further preferred embodiment, a second motor is also included. The second motor is fixedly connected to the first fixed frame via a mounting plate. A fixed rod is fixedly connected to the output shaft of the second motor. The fixed rod and the rotating plate are driven by a pulley and a belt. The rotating plate is rotatably connected to the side of the heat exchange shell away from the boiler. Both the heat exchange shell and the fixed pipe are in contact with the threaded plate. The rotating plate is fixedly connected to the side of the threaded plate away from the boiler.

[0013] As a further preferred embodiment, the first fixing frame is fixedly connected to a collecting shell, and the heat exchange shell is provided with a second through hole on the side away from the blocking frame. The collecting shell is connected to the heat exchange shell through the second through hole, and a discharge pipe is connected to the side of the collecting shell away from the heat exchange shell.

[0014] This invention has the following advantages: Firstly, by using a friction wheel and a rotating shell to replace the ion exchange resin in the softening tube, the invention ensures the softening effect on hard water without affecting the device's operation. Secondly, the replaced resin can be replaced with new resin, allowing the device to operate continuously and improving its practicality. Thirdly, by using a heat exchange shell and a threaded plate to exchange heat with the hard water in the fixed tube, the hard water to be softened is preheated, making full use of the residual heat of the exhaust gas while saving energy required for subsequent heating. Furthermore, the increased temperature of the hard water increases the thermal motion of water molecules, making it easier for the exchange sites on the resin surface to interact with the ion exchange resin in the water. Ions interact, so increasing the temperature helps improve the efficiency of the resin, thereby improving the quality of the softened water. By monitoring the exhaust gas flow rate through the impeller, the heat exchange distance between the hard water and the exhaust gas in the fixed pipe is adjusted according to the exhaust gas flow rate, so that the temperature of the hard water discharged from the fixed pipe is always within a stable range, ensuring the efficiency of subsequent softening steps. The second motor drives the threaded plate to rotate, scraping off small water droplets and particles adhering to the outer wall of the fixed pipe, so as to ensure the heat exchange efficiency between the exhaust gas and the fixed pipe. As the rotating plate continues to rotate, the heat on the rotating plate is also evenly transferred to the hard water in the fixed pipe, thereby increasing the uniformity of heating of the hard water. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a three-dimensional structural diagram of the internal structure of the rotating shell of the present invention;

[0017] Figure 3 This is an exploded view showing the mating relationship between the rotating shell and the fixed disk of the present invention;

[0018] Figure 4 This is a three-dimensional structural cross-sectional view of the heat exchange mechanism of the present invention;

[0019] Figure 5 This is a three-dimensional structural cross-sectional view of the adjustment mechanism of the present invention;

[0020] Figure 6 This is a three-dimensional structural cross-sectional view of the transmission component of the present invention;

[0021] Figure 7 This is a three-dimensional structural cross-sectional view of the cooperation relationship between the second fixed shell and the piston rod of the present invention;

[0022] Figure 8This is a three-dimensional structural cross-sectional view showing the positional relationship between the first fixing frame and the second motor of the present invention.

[0023] Wherein: 1-boiler, 2-first fixed shell, 3-rotating shell, 4-fixed disc, 5-fixed pipe, 6-softening pipe, 7-first motor, 8-friction wheel, 9-rotating block, 10-baffle plate, 11-heat exchange mechanism, 1101-first connecting pipe, 1102-first fixed frame, 1103-heat exchange shell, 1104-threaded plate, 1105-rotating plate, 121-adjusting mechanism, 1201-rotating rod, 1202-blade, 1 203-Blocking frame, 1204-Second connecting pipe, 122-Transmission assembly, 1205-Rotating disc, 1206-Sliding block, 1207-Traction rope, 1208-Sliding disc, 1209-Sliding frame, 1210-Second fixed frame, 1211-Fixed frame, 1212-Second fixed shell, 1213-Piston rod, 1214-Telescopic rod, 13-Second motor, 14-Fixed rod, 15-Collection shell, 16-Discharge pipe. Detailed Implementation

[0024] The present invention will be further described below with reference to specific embodiments. It should also be noted that, unless otherwise explicitly specified and limited, terms such as "setting," "installation," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0025] Example 1: An energy-saving gas-fired hot water boiler, please refer to... Figures 1-3The system includes a boiler 1. The upper left side of boiler 1 has an inlet pipe for supplying combustion gas, the lower left side has a water outlet pipe, the upper right side has an outlet pipe for discharging combustion exhaust gas, and the lower right side has a water inlet pipe for replenishing water. A connecting pipe is located at the front of boiler 1, between the water outlet pipe and the water inlet pipe. Both the connecting pipe and the water outlet pipe are connected to the heating system. One-way valves are installed on both the water inlet pipe and the connecting pipe, allowing water to flow only from front to back in the connecting pipe and only from right to left in the water inlet pipe. A first fixed shell 2 is fixedly connected to the right end of the water inlet pipe of boiler 1 to prevent leakage when replacing the softening pipe 6. A rotating shell 3 is rotatably connected to the right side of the first fixed shell 2. A fixed disk 4 is rotatably connected to the side. A fixed pipe 5 is fixedly connected to the right side of the fixed disk 4. The fixed pipe 5 passes through the fixed disk 4. Softening pipes 6 are fixedly connected inside the rotating shell 3 and are distributed vertically and horizontally. One-way valves are provided on the left side of each of the mirror-distributed softening pipes 6. Flow can only flow from right to left in the softening pipes 6. Both softening pipes 6 are connected to the first fixed shell 2. The fixed pipe 5 is connected to the adjacent softening pipe 6. Ion exchange resin for adsorbing calcium and magnesium ions in water is provided inside the softening pipe 6. A first motor 7 is fixedly connected to the lower side of the first fixed shell 2 through a mounting block. A friction wheel 8 that is squeezed and rubbed against the rotating shell 3 is fixedly connected to the output shaft of the first motor 7. The gas outlet pipe of the boiler 1 is equipped with a heat exchange mechanism 11 that utilizes the waste heat of the exhaust gas. A chamber is provided inside the rotating shell 3 for communication with the fixed pipe 5 in the switching state. Mirror-distributed drain pipes are provided on the rotating shell 3.

[0026] Please see Figure 2 and Figure 3 A rotating block 9 is rotatably connected to the right side of the fixed disk 4. A through hole is provided on the lower side of the fixed disk 4. A blocking plate 10 is slidably connected to the right side of the fixed disk 4. The blocking plate 10 is fixedly connected to the rotating block 9. A through hole is provided on the blocking plate 10, and the area of ​​the through hole on the blocking plate 10 is equal to the area of ​​the through hole on the fixed disk 4. The through hole on the blocking plate 10 is used to communicate with the through hole on the fixed disk 4. When the blocking plate 10 rotates, the through hole on the blocking plate 10 gradually communicates with the through hole on the fixed disk 4.

[0027] Please see Figure 2 and Figure 4The heat exchange mechanism 11 includes a first connecting pipe 1101, which is connected to the gas outlet pipe on the boiler 1. A first fixing frame 1102 is provided on the right side of the boiler 1. A heat exchange shell 1103, which is fixed to the fixing pipe 5, is fixed to the first fixing frame 1102. The heat exchange shell 1103 is used to provide heating space for the fixing pipe 5. A first through hole is provided on the upper side of the heat exchange shell 1103. The heat exchange shell 1103 is connected to the right end of the first connecting pipe 1101. A threaded plate 1104 is provided inside the heat exchange shell 1103 to increase the heat exchange distance of the exhaust gas flow. The threaded plate 1104 is attached to the fixing pipe 5. A rotating plate 1105 is provided on the right side of the heat exchange shell 1103.

[0028] When using this device to replenish water to the heating system, the user connects the outlet pipe of boiler 1 and the connecting pipe on the front side to the heating system. At the same time, the user connects the fixed pipe 5 to the external water supply system. Then, the user introduces low-temperature hard water into the fixed pipe 5. The low-temperature hard water enters the upper rotating shell 3 through the fixed pipe 5. The ion exchange resin (hereinafter referred to as resin) in the rotating shell 3 softens the water. After the low-temperature hard water is softened, it is injected into boiler 1 through the first fixed shell 2 and the water inlet pipe on the right side of boiler 1 and mixes with the water in the heating system. Then, the user introduces gas into boiler 1 through the gas inlet pipe on the left side of boiler 1. The user controls boiler 1 to ignite. Boiler 1 burns gas and heats the soft water. After the soft water is heated in boiler 1 for one cycle, it is discharged into the heating system through the outlet pipe on the left side of boiler 1. At this time, the user can adjust the temperature of the soft water discharged from boiler 1 as needed (i.e., the temperature of the soft water is proportional to the amount of gas used).

[0029] In the above process, the exhaust gas generated by the combustion of gas in boiler 1 flows into the first connecting pipe 1101 through the exhaust pipe on the right side of boiler 1. The exhaust gas then flows into the heat exchange shell 1103 through the first connecting pipe 1101. After entering the heat exchange shell 1103, the exhaust gas is intercepted and guided by the threaded plate 1104, causing the exhaust gas to spiral to the right. During this process, the exhaust gas continuously exchanges heat with the hard water in the fixed pipe 5, and the threaded plate 1104 also exchanges heat with the exhaust gas. Because the threaded plate 1104 is made of metal, its heat conduction efficiency is high. Similarly, the hard water in the fixed pipe 5 is heat-exchanged through the fixed pipe 5, thereby preheating the hard water in the fixed pipe 5. After the exhaust gas heat exchange is completed, it flows to the next step through the first through hole on the upper side of the heat exchange shell 1103. The softening effect is better after the hard water is heated and passes through the softening pipe 6. This is because the increase in temperature of the hard water increases the thermal motion of water molecules, making it easier for the exchange sites on the resin surface to interact with ions in the water. Therefore, increasing the temperature helps to improve the efficiency of the resin, thereby improving the quality of the soft water and preventing the formation of scale in the boiler 1 and heating system.

[0030] As the above work proceeds, the adsorption capacity of the resin in the upper softening tube 6 for calcium and magnesium ions in hard water gradually decreases. Therefore, after the resin in the softening tube 6 has been used for a period of time, it needs to be replaced. The user starts the first motor 7, and the output shaft of the first motor 7 drives the friction wheel 8 to rotate. The friction wheel 8 drives the rotating shell 3 to rotate by friction. When the connection between the fixed tube 5 and the upper softening tube 6 gradually disengages, the fixed tube 5 begins to gradually connect with the chamber inside the rotating shell 3. The heated hard water in the fixed tube 5 is injected into the chamber inside the rotating shell 3 until the rotating shell 3 rotates 180°. At this time, the lower softening tube 6 rotates to the upper side and connects with the fixed tube 5. The hard water in the fixed tube 5 is softened by the resin in the upper softening tube 6 at this time, and then injected into the boiler 1 for heating. When the heated soft water is heated again, the energy required is reduced simultaneously, thereby achieving an energy-saving effect.

[0031] After the upper softening tube 6 is switched to the lower side, the user rotates the rotating block 9, which drives the baffle plate 10 to rotate until the through hole on the baffle plate 10 connects with the through hole on the fixed plate 4. Then, the user takes out the resin through the through hole and replaces it. The user puts the new resin back into the softening tube 6 through the through hole. Then, the user rotates the rotating block 9 to reset the baffle plate 10. At this time, the replacement is completed. The ion exchange resin in the softening tube 6 is replaced by the friction wheel 8 and the rotating shell 3. This ensures that the device has a good softening effect on hard water without affecting the working state of the device. Moreover, the replaced resin can be replaced with new resin, so that the device can work continuously and improve its practicality.

[0032] After the above replacement is completed, since heated hard water is injected into the rotating shell 3 during the switching process, the water in the rotating shell 3 continuously keeps the rotating shell 3 warm and heats the newly added resin on the lower side to ensure the resin's softening efficiency for hard water. As time gradually increases, the temperature of the hard water in the rotating shell 3 gradually decreases. Therefore, before the resin needs to be replaced again, the user should open the drain pipe on the rotating shell 3 and drain the hard water. Then, during the replacement, the hard water in the cavity of the rotating shell 3 should also be replaced.

[0033] The user repeats the above operation until the heating system is fully replenished with water. The user then stops adding water to the fixed pipe 5. At this point, the use of this device is complete.

[0034] Example 2: Based on Example 1, please refer to... Figure 1 and Figure 5It also includes an adjustment mechanism 121 for adjusting the heat exchange state. The adjustment mechanism 121 is disposed in the first connecting pipe 1101 and includes a rotating rod 1201 rotatably connected to the first connecting pipe 1101. A fan blade 1202 located inside the first connecting pipe 1101 is fixedly connected to the first connecting pipe 1101. The fan blade 1202 is used to detect the exhaust gas flow rate. A baffle 1203 is slidably connected to the upper side of the heat exchange shell 1103. The baffle 1203 is used to block the heat exchange shell 1103. The first through hole on the upper side controls the flow distance of the exhaust gas in the heat exchange shell 1103. The middle part of the baffle 1203 is fixedly connected to the second connecting pipe 1204. The second connecting pipe 1204 is connected to the heat exchange shell 1103 through the baffle 1203 and the first through hole. The rotating rod 1201 is provided with a transmission component 122 for controlling the sliding distance of the baffle 1203. The flow area of ​​the second connecting pipe 1204 is larger than the flow area of ​​the first connecting pipe 1101 to ensure the heat exchange state of the heat exchange shell 1103.

[0035] Please see Figure 1 , Figure 6 and Figure 7 The transmission assembly 122 includes a rotating disk 1205, which is fixedly connected to a rotating rod 1201. A ring-shaped array of sliding blocks 1206 are slidably connected to the inner side of the rotating disk 1205. The sliding blocks 1206 are used to detect the rotational speed of the rotating disk 1205, and the distance between the sliding blocks 1206 and the rotating rod 1201 is proportional to the rotational speed of the rotating disk 1205. A traction rope 1207 is fixedly connected to the side of the sliding block 1206 near the rotating rod 1201. The portion of the rotating rod 1201 outside the first connecting pipe 1101 has a partial spline. The splined portion of the rotating rod 1201 is splinedly connected to the sliding disk 1208. The ring-shaped array of traction ropes 1207 are all fixedly connected to the sliding disk 1208. A tension spring is provided between the sliding disk 1208 and the front end of the rotating rod 1201. A sliding frame 1209 is rotatably connected to the sliding disk 1208. The first connecting pipe 1101 is fixedly connected to the second fixed frame 1210. The right side of the second fixed frame 1210 is fixedly connected to the fixed frame 1211, which is slidably connected to the sliding frame 1209. The second fixed frame 1210 is fixedly connected to the second fixed shell 1212 by the mounting ring. The second fixed shell 1212 is slidably connected to the piston rod 1213. The rear side of the piston rod 1213 is fixedly connected to the sliding frame 1209. The lower side of the first connecting pipe 1101 is fixedly connected to the telescopic rod 1214 by the mounting plate. The telescopic end of the telescopic rod 1214 is fixedly connected to the left side 1203 of the blocking frame. Both the telescopic rod 1214 and the second fixed shell 1212 are filled with hydraulic oil. The telescopic rod 1214 and the second fixed shell 1212 are connected by a pipe. The extension length of the telescopic end of the telescopic rod 1214 is greater than the axial distance between the first through hole and the fixed pipe 5, which is used to ensure the heat exchange range of the heat exchange shell 1103.

[0036] When using resin to soften heated hard water, the resin also has a suitable operating temperature range. Therefore, to ensure that the resin remains within this range, the temperature of the hard water after heat exchange needs to be controlled. However, the heating requirements of boiler 1 for its internal water also change, resulting in variations in the amount of exhaust gas produced by boiler 1. This makes it difficult to maintain the hard water temperature within the resin's suitable operating temperature range. To solve this problem, the following operations are required:

[0037] When the user uses the exhaust gas generated by the combustion of gas to preheat hard water, the exhaust gas in the first connecting pipe 1101 drives the rotating rod 1201 to rotate through the fan blade 1202. The rotation speed of the fan blade 1202 is proportional to the exhaust gas volume (for the same flow area, the larger the gas volume, the faster the gas flow rate). The rotating rod 1201 drives the rotating disk 1205 to rotate, and the rotating disk 1205 drives the sliding blocks 1206 distributed in a ring on it to rotate. Due to centrifugal force, the sliding blocks 1206 move away from the rotating rod 1201. The sliding blocks 1206 drive the sliding disk 1208 to move backward through the adjacent traction rope 1207, and at the same time stretch the tension spring between the sliding disk 1208 and the rotating rod 1201. The sliding disk 1208 drives the sliding frame 1209 to move backward, and the sliding frame 1209 drives the piston rod 1213 to move backward. When the piston rod 1213 moves backward, it moves the rear side... Hydraulic oil between the second fixed shell 1212 and the second fixed shell 1214 is squeezed into the telescopic rod 1214 through the pipe. The telescopic end of the telescopic rod 1214 extends to the right, which drives the blocking frame 1203 to move to the right. The blocking frame 1203 drives the second connecting pipe 1204 to move to the right, thereby increasing the heat exchange distance between the exhaust gas and the hard water in the fixed pipe 5. Under the same heat exchange distance, the faster the exhaust gas flow rate, the less heat exchange time between the exhaust gas and the hard water in the fixed pipe 5. Therefore, in order to ensure that the heat exchange effect between the exhaust gas and the hard water in the fixed pipe 5 is the same under different flow rates (i.e., to ensure that the temperature of the hard water discharged from the fixed pipe 5 is always within a stable range), the exhaust gas flow rate should be proportional to the heat exchange distance (i.e., the faster the exhaust gas flow rate, the longer the heat exchange distance between the exhaust gas and the hard water in the fixed pipe 5). After the heat exchange is completed, the exhaust gas flows to the next step through the first through hole and the second connecting pipe 1204 on the upper side of the heat exchange shell 1103.

[0038] Example 3: Based on Example 2, please refer to... Figure 2 , Figure 4 and Figure 8It also includes a second motor 13, which is fixed to the first fixed frame 1102 via a mounting plate. The output shaft of the second motor 13 is fixed to a fixed rod 14, which is driven by a pulley and a belt to a rotating plate 1105. The rotating plate 1105 is rotatably connected to the right side of the heat exchange shell 1103. The heat exchange shell 1103 and the fixed pipe 5 are both in contact with the threaded plate 1104 to scrape off the particles and condensate adhering to the heat exchange shell 1103 and the fixed pipe 5. The rotating plate 1105 is fixed to the right side of the threaded plate 1104. The first fixed frame 1102 is fixed to a collection shell 15 for collecting water vapor condensate in the exhaust gas. The lower side of the heat exchange shell 1103 is provided with a second through hole, through which the collection shell 15 communicates with the heat exchange shell 1103. The lower side of the collection shell 15 is connected to a discharge pipe 16, which is a U-shaped pipe that provides a water seal to the collection shell 15 while automatically discharging the material.

[0039] Because the exhaust gas produced by gas combustion contains water vapor, carbon dioxide, and particulate matter, and the water vapor releases heat and condenses into water droplets during heat exchange, adhering to the outer surface of the fixed pipe 5, and because water has a high specific heat capacity, its heat transfer efficiency is low, and the particulate matter also adheres to the outer surface of the fixed pipe 5, thus affecting the heat exchange efficiency between the exhaust gas and the hard water inside the fixed pipe 5, the following operations are required to solve the above problems:

[0040] Before the heat exchange step, the user injects enough water into the discharge pipe 16 to achieve a water seal between the collection shell 15 and the heat exchange shell 1103.

[0041] When heat exchange is performed on the hard water in the fixed pipe 5, the user starts the second motor 13. The output shaft of the second motor 13 drives the fixed rod 14 to rotate. The fixed rod 14 drives the rotating plate 1105 to rotate through the belt and pulley. The rotating plate 1105 drives the threaded plate 1104 to rotate. As the threaded plate 1104 continues to rotate, it scrapes away the small water droplets and particles condensed on the outer surface of the fixed pipe 5, thereby ensuring the heat exchange efficiency between the exhaust gas and the fixed pipe 5. As the rotating plate 1105 continues to rotate, the heat on the rotating plate 1105 is also evenly transferred to the hard water in the fixed pipe 5, thereby increasing the uniformity of the hard water being heated.

[0042] As the threaded plate 1104 continuously scrapes down the small water droplets, the droplets move downwards under gravity and collect in the collection shell 15. The collected water flows downwards into the discharge pipe 16. When the liquid level in the collection shell 15 exceeds the port at the front of the discharge pipe 16, the water in the collection shell 15 automatically flows outwards and is discharged to the waste liquid treatment area. The water in the discharge pipe 16 always forms a water seal with the collection shell 15. When the heating system is replenished with water (i.e., water is stopped being added to the fixed pipe 5), the user stops the second motor 13, and the threaded plate 1104 and the rotating plate 1105 stop rotating. At this point, the use of this device is complete.

[0043] The technical principles of the embodiments of the present invention have been described above with reference to specific examples. These descriptions are merely for explaining the principles of the embodiments of the present invention and should not be construed as limiting the scope of protection of the embodiments of the present invention in any way. Based on the explanation herein, those skilled in the art can conceive of other specific embodiments of the present invention without creative effort, and these embodiments will all fall within the scope of protection of the embodiments of the present invention.

Claims

1. An energy-saving gas hot water boiler, comprising a boiler (1), one side of the boiler (1) is provided with an air inlet pipe and a water outlet pipe, the side of the boiler (1) far from the air inlet pipe is provided with an air outlet pipe and a water inlet pipe, a connecting pipe is arranged on the boiler (1) between the water outlet pipe and the water inlet pipe, and a one-way valve is arranged on the water inlet pipe and the connecting pipe of the boiler (1), characterized in that: It also includes a first fixed shell (2), which is fixed to the water inlet pipe of the boiler (1). The first fixed shell (2) is rotatably connected to a rotating shell (3). A fixed disk (4) is rotatably connected to the side of the rotating shell (3) away from the boiler (1). A fixed pipe (5) is fixedly connected to the side of the fixed disk (4) away from the boiler (1). The fixed pipe (5) penetrates the fixed disk (4). Mirror-distributed softening pipes (6) are fixedly connected inside the rotating shell (3). 6) One-way valves are provided on the side near the first fixed shell (2). The first fixed shell (2) and the fixed pipe (5) are connected through the adjacent softening pipe (6). Ion exchange resin is provided in the softening pipe (6). The first fixed shell (2) is fixedly connected to the first motor (7) through the mounting block. The output shaft of the first motor (7) is fixedly connected to the friction wheel (8). The friction wheel (8) is squeezed and rubbed with the rotating shell (3). The gas outlet pipe of the boiler (1) is provided with a heat exchange mechanism (11) that utilizes the waste heat of the exhaust gas. The heat exchange mechanism (11) includes a first connecting pipe (1101), which is connected to the gas outlet pipe on the boiler (1). A first fixed frame (1102) is provided on the side of the boiler (1) near the first connecting pipe (1101). A heat exchange shell (1103) is fixedly connected to the first fixed frame (1102). The heat exchange shell (1103) is fixedly connected to the fixed pipe (5). A first through hole is provided on the upper side of the heat exchange shell (1103). The heat exchange shell (1103) is connected to the end of the first connecting pipe (1101) away from the boiler (1). A threaded plate (1104) is provided inside the heat exchange shell (1103). The threaded plate (1104) is in contact with the fixed pipe (5). A rotating plate (1105) is provided on the side of the heat exchange shell (1103) away from the boiler (1). It also includes an adjustment mechanism (121) for adjusting the heat exchange state. The adjustment mechanism (121) is disposed in the first connecting pipe (1101). The adjustment mechanism (121) includes a rotating rod (1201). The rotating rod (1201) is rotatably connected to the first connecting pipe (1101). The first connecting pipe (1101) is fixedly connected to a blade (1202). The blade (1202) is located inside the first connecting pipe (1101). A blocking frame (1203) is slidably connected to the side of the heat exchange shell (1103) away from the first fixed frame (1102). The blocking frame (1203) is fixedly connected to a second connecting pipe (1204). The second connecting pipe (1204) communicates with the heat exchange shell (1103) through the blocking frame (1203) and the first through hole. The rotating rod (1201) is provided with a transmission component (122) for controlling the sliding distance of the blocking frame (1203). The transmission assembly (122) includes a rotating disk (1205), which is fixedly connected to the rotating rod (1201). A ring-shaped array of sliding blocks (1206) is slidably connected inside the rotating disk (1205). A traction rope (1207) is fixedly connected to the side of the sliding block (1206) near the rotating rod (1201). The rotating rod (1201) is splined to a sliding disk (1208). All the ring-shaped array of traction ropes (1207) are fixedly connected to the sliding disk (1208). A tension spring is provided between the sliding disk (1208) and the rotating rod (1201). A sliding frame (1209) is rotatably connected to the sliding disk (1208). A second fixed frame (1210) is fixedly connected to the first connecting pipe (1101). The second fixed frame (1210) is close to the... A fixed frame (1211) is fixedly connected to one side of the rotating rod (1201). The fixed frame (1211) is slidably connected to the sliding frame (1209). The second fixed frame (1210) is fixedly connected to the second fixed shell (1212) by a mounting ring. The second fixed shell (1212) is slidably connected to the piston rod (1213). The side of the piston rod (1213) near the first connecting pipe (1101) is fixedly connected to the sliding frame (1209). The first connecting pipe (1101) is fixedly connected to the telescopic rod (1214) by a mounting plate. The telescopic end of the telescopic rod (1214) is fixedly connected to the blocking frame (1203). Both the telescopic rod (1214) and the second fixed shell (1212) are filled with hydraulic oil. The telescopic rod (1214) and the second fixed shell (1212) are connected by a pipe.

2. The energy-saving gas-fired hot water boiler according to claim 1, characterized in that: The rotating shell (3) has a chamber for communicating with the fixed pipe (5) in the switching state, and the rotating shell (3) has a drainage pipe distributed in a mirror image.

3. The energy-saving gas-fired hot water boiler according to claim 1, characterized in that: The fixed disk (4) is rotatably connected to a rotating block (9) on the side away from the first fixed shell (2). The fixed disk (4) is provided with a through hole on the side away from the fixed tube (5). The fixed disk (4) is slidably connected to a blocking plate (10) on the side away from the first fixed shell (2). The blocking plate (10) is fixedly connected to the rotating block (9). The blocking plate (10) is provided with a through hole, which is used to communicate with the through hole on the fixed disk (4).

4. An energy-saving gas-fired hot water boiler according to claim 1, characterized in that: The flow area of ​​the second connecting pipe (1204) is greater than that of the first connecting pipe (1101), which is used to ensure the heat exchange state of the heat exchange shell (1103).

5. An energy-saving gas-fired hot water boiler according to claim 1, characterized in that: The extension length of the telescopic rod (1214) is greater than the axial distance between the first through hole and the fixed tube (5), which is used to ensure the heat exchange range of the heat exchange shell (1103).

6. An energy-saving gas-fired hot water boiler according to claim 1, characterized in that: It also includes a second motor (13), which is fixed to the first fixed frame (1102) by a mounting plate. The output shaft of the second motor (13) is fixed to a fixed rod (14). The fixed rod (14) and the rotating plate (1105) are driven by a pulley and a belt. The rotating plate (1105) is rotatably connected to the side of the heat exchange shell (1103) away from the boiler (1). The heat exchange shell (1103) and the fixed pipe (5) are both in contact with the threaded plate (1104). The rotating plate (1105) is fixed to the side of the threaded plate (1104) away from the boiler (1).

7. An energy-saving gas-fired hot water boiler according to claim 6, characterized in that: The first fixed frame (1102) is fixedly connected to a collection shell (15). The heat exchange shell (1103) is provided with a second through hole on the side away from the blocking frame (1203). The collection shell (15) is connected to the heat exchange shell (1103) through the second through hole. The side of the collection shell (15) away from the heat exchange shell (1103) is connected to a discharge pipe (16).

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