Energy-saving gas wall-hanging stove

Abstract

The invention provides an energy-saving gas wall-hanging stove which comprises a box body, a control system, a combustion system, a heat exchange system, a water circulation system and a fan are arranged in the box body, a first water inlet pipe is arranged at the bottom of the box body, a preheating box is arranged on one side of the box body, and a filter box is arranged under the preheating box. The bottom of the filter box is communicated with a second water inlet pipe, the second water inlet pipe is communicated with an external tap water pipe, the top of the filter box is communicated with a first water drainage pipe, a partition plate is fixed in the filter box and divides the interior of the filter box into two treatment cavities, and a pair of anti-leakage net plates is arranged on each of the two sides of the partition plate; according to the wall-hanging stove, the problem that after an existing wall-hanging stove is used for a long time, a large amount of water scale is often accumulated in a heat exchanger pipeline of the wall-hanging stove, and the heating effect of a heat exchanger is affected is solved.

Description

Technical Field

[0001] The present invention relates to the field of gas wall-hung boilers, and particularly to an energy-saving gas wall-hung boiler. Background Art

[0002] With the rapid development of social economy, the use of household fast gas water heaters is becoming more and more common. At the same time, with the increasing global energy tension, the development of highly efficient, energy-saving and environmental-friendly domestic gas appliances is not only to save expenses for users, but also to meet the needs of sustainable development of the national economy. As the core component of a gas water heater, the heat exchanger will largely determine the efficiency of the water heater in terms of energy utilization rate.

[0003] Most of the existing gas heating and hot water furnaces still use heat exchangers with a general finned tube structure. The heat is transferred to the heat exchange tube by directly heating the fins with the flame, thereby heating the water in the heat exchange tube.

[0004] However, since the water entering the wall-hung boiler is generally tap water and there are many minerals in tap water, after the wall-hung boiler is used for a long time, a large amount of scale often accumulates in the heat exchanger pipes, which in turn affects the heating effect of the heat exchanger.

[0005] Therefore, it is necessary to provide a new energy-saving gas wall-hung boiler to solve the above technical problems. Summary of the Invention

[0006] To solve the above technical problems, the present invention provides an energy-saving gas wall-hung boiler, which solves the problem that after the existing wall-hung boiler is used for a long time, a large amount of scale often accumulates in the heat exchanger pipes, affecting the heating effect of the heat exchanger.

[0007] The energy-saving gas wall-hung boiler provided by the present invention includes a box body. A control system, a combustion system, a heat exchange system, a water circulation system and a blower are arranged inside the box body. A first water inlet pipe is arranged at the bottom of the box body. A preheating box is arranged on one side of the box body, and a filter box is arranged directly below the preheating box; A second water inlet pipe is connected and arranged at the bottom of the filter box, and the second water inlet pipe is connected to an external tap water pipe. A first drain pipe is connected and arranged at the top of the filter box; A partition is fixed inside the filter box. The partition divides the interior of the filter box into two treatment chambers. A pair of anti-leakage mesh plates are arranged on both sides of the partition, and ion exchange resin is filled between the two anti-leakage mesh plates.

[0008] In a preferred embodiment, a filter mesh plate is arranged between the anti-leakage mesh plate and the second water inlet pipe, and the filter mesh plate is fixed on the inner wall of the filter box.

[0009] In a preferred embodiment, two rotating shafts are movably provided inside the filter box, and a closing plate is fixed on each of the rotating shafts; A silicone sealing pad is provided at the contact portion between the rotating shaft and the partition to prevent tap water from flowing into the other processing chamber.

[0010] In a preferred embodiment, two installation shafts are spaced apart on one side of the filter box, one end of the installation shaft extends into the filter box and is fixedly connected to the rotating shaft, and a transmission worm gear is installed on the other end of the installation shaft; A limit seat is installed on one side of the filter box, and a transmission shaft is movably provided on the limit seat. Both ends of the transmission shaft are connected with transmission worms, and the two transmission worms are respectively engaged with the two transmission worm wheels.

[0011] In a preferred embodiment, a closed transmission is adopted between the transmission worm and the transmission worm wheel, and a crank is installed on one of the transmission worms; Two pairs of blocks are symmetrically fixed on the inner wall of the filter box.

[0012] In a preferred embodiment, side sealing plates are detachably mounted on both sides of the filter box via a plurality of high-strength screws.

[0013] In a preferred embodiment, an exhaust gas heat exchange pipe is installed inside the preheating box, a hot water exchange pipe is wrapped around the exhaust gas heat exchange pipe, the top of the hot water exchange pipe extends out of the preheating box and is connected to the water inlet end of the water circulation system, and the bottom of the hot water exchange pipe is connected to the first drain pipe.

[0014] In a preferred embodiment, a plurality of heat exchange fins are fixed at intervals inside the exhaust gas heat exchange tube.

[0015] In a preferred embodiment, the top of the exhaust gas heat exchange tube is connected to an air inlet, and the bottom of the exhaust gas heat exchange tube is connected to an air outlet, and the air outlet is connected to an external pre-buried exhaust gas discharge pipe; A filter tube is detachably mounted between the exhaust end of the fan and the air inlet via bolts, and a plurality of groups of dust filters are installed at intervals inside the filter tube.

[0016] In a preferred embodiment, a plurality of support rods are fixed to one side of the box body, a plurality of mounting brackets are fixed to one side of the filter box, and the mounting brackets are connected to the support rods via a plurality of high-strength bolts.

[0017] Beneficial effects of the present invention: 1. When this energy-saving gas wall-mounted boiler is in use, the water inside the external water supply pipe can enter the inside of the filter box from the second water inlet pipe. The water flowing into the filter box passes through the filter mesh plate and ion exchange resin in sequence. Under the action of the filter mesh plate, larger impurities in the tap water can be filtered out. Under the action of the ion exchange resin, calcium and magnesium ions in the tap water can be efficiently removed, avoiding the accumulation of scale in the heat exchanger pipes of the subsequent wall-mounted boiler and affecting the heat exchange efficiency. 2. When it is necessary to replace the ion exchange resin between the two anti-leakage mesh plates and clean the filter mesh plate, the user only needs to rotate the crank so that the two closing plates move in opposite directions until they contact the corresponding stoppers. At this time, one of the treatment chambers is closed, and the other treatment chamber can filter the tap water. Opening the corresponding side sealing plate can carry out the cleaning work, ensuring that the normal use of the user is not affected during the cleaning. 3. The filtered tap water can enter the inside of the heat exchange water pipe through the first drain pipe. After the heat exchange is completed, the exhaust gas can enter the inside of the exhaust gas heat exchange pipe along the air inlet under the action of the fan, and finally be discharged from the air outlet. Therefore, the tap water passing through the heat exchange water pipe will be fully heated, and the heat in the exhaust gas is reused, improving the energy-saving performance of this gas wall-mounted boiler. Description of the Drawings

[0018] Figure 1 Is the three-dimensional view of the main structure of the energy-saving gas wall-mounted boiler provided by the present invention; Figure 2 Is Figure 1 The enlarged structural schematic diagram of A shown in; Figure 3 Is the three-dimensional structural schematic diagram of the filter box provided by the present invention; Figure 4 Is the plane structural schematic diagram of the filter box provided by the present invention; Figure 5 Is the structural schematic diagram of the exhaust gas heat exchange pipe provided by the present invention; Figure 6 Is the front view of the main structure of the energy-saving gas wall-mounted boiler provided by the present invention; Figure 7 Is the side view of the main structure of the energy-saving gas wall-mounted boiler provided by the present invention.

[0019] Reference numerals in the figures: 1, cabinet; 2, control system; 3, combustion system; 4, heat exchange system; 5, fan; 6, first water inlet pipe; 7, preheating tank; 8, filtration tank; 9, second water inlet pipe; 10, first drain pipe; 11, partition board; 12, anti-leakage net board; 13, ion exchange resin; 14, filter net board; 15, rotating shaft; 16, closing board; 17, mounting shaft; 18, driving worm gear; 19, limiting seat; 20, transmission shaft; 21, driving worm; 22, hand crank; 23, stop block; 24, waste gas heat exchange pipe; 25, hot water exchange pipe; 26, heat exchange fins; 27, air inlet; 28, air outlet; 29, filter pipe; 30, dust filter net; 31, support rod; 32, mounting bracket; 33, high-strength bolt; 34, side sealing board. Detailed implementation mode

[0020] The present invention will be further described below in conjunction with the accompanying drawings and implementation modes.

[0021] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 , where Figure 1 is the three-dimensional view of the main structure of the energy-saving gas wall-mounted boiler provided by the present invention; Figure 2 is Figure 1 the enlarged structural schematic diagram of A shown in; Figure 3 is the three-dimensional structural schematic diagram of the filtration tank provided by the present invention; Figure 4 is the planar structural schematic diagram of the filtration tank provided by the present invention; Figure 5 is the structural schematic diagram of the waste gas heat exchange pipe provided by the present invention; Figure 6 is the front view of the main structure of the energy-saving gas wall-mounted boiler provided by the present invention; Figure 7 is the side view of the main structure of the energy-saving gas wall-mounted boiler provided by the present invention.

[0022] In the specific implementation process, such as Figures 1 - 7As shown in the figure, it includes a box body 1. Inside the box body 1, there are a control system 2, a combustion system 3, a heat exchange system 4, a water circulation system, and a blower 5. The combustion system 3 mainly includes a burner, a gas proportional valve, and an ignition electrode. The burner is responsible for the injection and combustion of gas. Generally, full premix or atmospheric combustion technology is adopted to ensure efficient combustion and reduce pollutant emissions. The gas proportional valve can adjust the gas flow rate to ensure stable combustion and automatically adjust the firepower according to requirements. The ignition electrode generates an electric spark to ignite the gas and usually works in cooperation with a flame detection electrode to ensure safe ignition. The blower 5 can provide the air required for combustion and forcibly discharge the waste gas with a certain amount of heat. Since their specific working principles are all existing mature technologies, no more details will be elaborated here. The same goes for the control system 2, the heat exchange system 4, and the water circulation system.

[0023] At the bottom of the box body 1, there is a first water inlet pipe 6. On one side of the box body 1, there is a preheating box 7. Right below the preheating box 7, there is a filter box 8. At the bottom of the filter box 8, there is a second water inlet pipe 9 connected to the external water supply pipe. At the top of the filter box 8, there is a first drain pipe 10. Inside the filter box 8, there is a fixed partition 11 that divides the inside of the filter box 8 into two treatment chambers. Inside the filter box 8, there are two rotatable shafts 15 movably arranged. On both rotatable shafts 15, there are fixed closing plates 16. At the contact part between the rotatable shafts 15 and the partition 11, there are silica gel gaskets. At the position where the closing plates 16 contact the filter box 8, there are also silica gel gaskets to prevent tap water from flowing into the other treatment chamber.

[0024] On one side of the box body 1, there are multiple fixed support rods 31. On one side of the filter box 8, there are multiple mounting brackets 32. Between the mounting brackets 32 and the support rods 31, they are connected by a number of high-strength bolts 33. Through the number of high-strength bolts 33, the mounting brackets 32 can be fixed on the support rods 31 to complete the fixing work of the filter box 8.

[0025] On one side of the filtration tank 8, there are two mounting shafts 17 arranged at intervals. One end of the mounting shaft 17 extends into the filtration tank 8 and is fixedly connected to the rotating shaft 15. The other end of the mounting shaft 17 is equipped with a driving worm gear 18. On one side of the filtration tank 8, there is a limit seat 19. A transmission shaft 20 is movably arranged on the limit seat 19. Both ends of the transmission shaft 20 are connected with a driving worm 21. The two driving worms 21 are respectively meshed with the two driving worm gears 18. When it is necessary to replace the ion exchange resin 13 between the two anti-leakage net plates 12 and clean the filter net plate 14, the user only needs to rotate the crank 22 to drive the two driving worms 21 to rotate. Under the driving action of the driving worm 21 and the driving worm gear 18, the two closing plates 16 move in opposite directions until they contact the corresponding stoppers 23. At this time, one of the treatment chambers is closed, and the other treatment chamber can filter tap water. On both sides of the filtration tank 8, a plurality of high-strength screws are used for detachable installation of side sealing plates 34. By opening the side sealing plates 34, the cleaning work of the chamber to be cleaned can be carried out.

[0026] A closed transmission is adopted between the driving worm 21 and the driving worm gear 18 to reduce wear and improve its service life. And a crank 22 is installed on one of the driving worms 21 for the convenience of the user to rotate. On the inner wall of the filtration tank 8, two pairs of stoppers 23 are symmetrically fixed. Rotate the crank 22 in the required direction to drive the closing plate 16 to move. When the closing plate 16 moves to the position where it contacts the stopper 23, the crank 22 cannot continue to rotate in this direction.

[0027] Inside the preheating tank 7, there is an exhaust gas heat exchange tube 24. A heat exchange water pipe 25 is wound around the exhaust gas heat exchange tube 24. The top of the heat exchange water pipe 25 extends out of the preheating tank 7 and is connected to the water inlet end in the water circulation system. The bottom of the heat exchange water pipe 25 is connected to the first drain pipe 10. A number of heat exchange fins 26 are fixedly arranged at intervals inside the exhaust gas heat exchange tube 24 to improve the efficiency of transferring the exhaust gas heat to the heat exchange water pipe 25.

[0028] An air inlet 27 is connected to the top of the exhaust gas heat exchange tube 24 in a communicating way. An air outlet 28 is connected to the bottom of the exhaust gas heat exchange tube 24 in a communicating way. The air outlet 28 is connected to the externally buried exhaust gas discharge pipe. A filter pipe 29 is installed between the exhaust end of the fan 5 and the air inlet 27 by bolts in a detachable way. A plurality of groups of dust filter meshes 30 are installed at intervals inside the filter pipe 29. After the heat exchange of the exhaust gas, under the action of the fan 5, the exhaust gas can enter the inside of the exhaust gas heat exchange tube 24 along the air inlet 27 and finally be discharged from the air outlet 28. The plurality of groups of dust filter meshes 30 can filter a small amount of solid impurities in the flue gas.

[0029] On both sides of the partition plate 11, there is a pair of anti-leakage net plates 12. Ion exchange resin 13 is filled between the two anti-leakage net plates 12. The Na⁺ or H⁺ on the resin exchanges with Ca²⁺ and Mg²⁺ in the water, so as to achieve the purpose of softening the water quality.

[0030] A filter screen plate 14 is arranged between the leak-proof screen plate 12 and the second water inlet pipe 9. The filter screen plate 14 is fixed on the inner wall of the filter box 8. When the energy-saving gas wall-mounted boiler is in use, the water in the external water supply pipe can enter the inside of the filter box 8 from the second water inlet pipe 9. The water flowing into the inside of the filter box 8 passes through the filter screen plate 14 and the ion exchange resin 13 in sequence. Under the action of the filter screen plate 14, larger impurities in the tap water can be filtered out. Under the action of the ion exchange resin 13, calcium and magnesium ions in the tap water can be efficiently removed, avoiding the accumulation of scale in the heat exchanger pipeline of the subsequent wall-mounted boiler and affecting the heat exchange efficiency.

[0031] The working principle of the present invention: When the energy-saving gas wall-mounted boiler is in use, the water in the external water supply pipe can enter the inside of the filter box 8 from the second water inlet pipe 9. The water flowing into the inside of the filter box 8 passes through the filter screen plate 14 and the ion exchange resin 13 in sequence. Under the action of the filter screen plate 14, larger impurities in the tap water can be filtered out. Under the action of the ion exchange resin 13, calcium and magnesium ions in the tap water can be efficiently removed, avoiding the accumulation of scale in the heat exchanger pipeline of the subsequent wall-mounted boiler and affecting the heat exchange efficiency; When it is necessary to replace the ion exchange resin 13 between the two leak-proof screen plates 12 and clean the filter screen plate 14, the user only needs to rotate the crank 22 to drive the two driving worms 21 to rotate. Under the driving action of the driving worm 21 and the driving worm wheel 18, the two closing plates 16 move along opposite directions until they contact the corresponding stoppers 23. At this time, one of the treatment chambers is closed, and the other treatment chamber can filter the tap water, ensuring that the user can carry out the cleaning work without affecting the normal use; The filtered tap water can enter the heat exchange water pipe 25 through the first drain pipe 10. The exhausted gas after heat exchange can enter the exhaust gas heat exchange pipe 24 along the air inlet 27 under the action of the fan 5 and finally be discharged from the air outlet 28. Therefore, the tap water passing through the heat exchange water pipe 25 will be fully heated, and the heat in the exhausted gas is reused, improving the energy-saving performance of the gas wall-mounted boiler.

[0032] The circuits and controls involved in the present invention are all prior arts and will not be elaborated here.

[0033] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied to other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. An energy-saving gas wall-mounted boiler, comprising a box body (1), wherein a control system (2), a combustion system (3), a heat exchange system (4), a water circulation system and a blower (5) are arranged inside the box body (1), and it is characterized in that, A first water inlet pipe (6) is provided at the bottom of the box body (1), a preheating box (7) is provided on one side of the box body (1), and a filter box (8) is provided directly below the preheating box (7); A second water inlet pipe (9) is connected to the bottom of the filter box (8) in a communicating manner, the second water inlet pipe (9) is connected to an external tap water pipe in a communicating manner, and a first drain pipe (10) is connected to the top of the filter box (8) in a communicating manner; A partition plate (11) is fixed inside the filter box (8), the partition plate (11) divides the interior of the filter box (8) into two treatment chambers, a pair of leak-proof mesh plates (12) are provided on both sides of the partition plate (11), and ion exchange resin (13) is filled between the two leak-proof mesh plates (12).

2. The energy-saving gas wall-mounted boiler according to claim 1, characterized in that A filter mesh plate (14) is provided between the leak-proof mesh plate (12) and the second water inlet pipe (9), and the filter mesh plate (14) is fixed to the inner wall of the filter box (8).

3. The energy-saving gas wall-mounted boiler according to claim 2, wherein Two rotating shafts (15) are movably arranged inside the filter box (8), and closing plates (16) are fixed on both of the two rotating shafts (15); A silica gel sealing gasket is provided at the contact part between the rotating shaft (15) and the partition plate (11) to prevent tap water from flowing into the other treatment chamber.

4. The energy-saving gas wall-mounted boiler according to claim 3, characterized in that, Two mounting shafts (17) are arranged at intervals on one side of the filter box (8), one end of the mounting shaft (17) extends into the filter box (8) and is fixedly connected to the rotating shaft (15), and a driving worm wheel (18) is mounted at the other end of the mounting shaft (17); A limit seat (19) is mounted on one side of the filter box (8), a transmission shaft (20) is movably arranged on the limit seat (19), transmission worms (21) are connected to both ends of the transmission shaft (20), and the two transmission worms (21) are respectively engaged with the two driving worm wheels (18).

5. The energy-saving gas wall-mounted boiler according to claim 4, characterized in that A closed transmission is adopted between the transmission worm (21) and the driving worm wheel (18), and a hand crank (22) is mounted on one of the transmission worms (21); Two pairs of stoppers (23) are symmetrically fixed to the inner wall of the filter box (8).

6. The energy-saving gas wall-mounted boiler according to claim 5, characterized in that, Side sealing plates (34) are detachably mounted on both sides of the filter box (8) through a plurality of high-strength screws.

7. The energy-saving gas wall-hung boiler according to claim 6, characterized in that, An exhaust gas heat exchange pipe (24) is installed inside the preheating box (7), a heat exchange water pipe (25) is wound around the exhaust gas heat exchange pipe (24), the top of the heat exchange water pipe (25) extends out of the preheating box (7) and is connected to the water inlet end in the water circulation system in a communicating manner, and the bottom of the heat exchange water pipe (25) is connected to the first drain pipe (10).

8. The energy-saving gas wall-mounted boiler according to claim 7, characterized in that, A plurality of heat exchange fins (26) are fixedly arranged at intervals inside the exhaust gas heat exchange pipe (24).

9. The energy-saving gas wall-mounted boiler according to claim 8, wherein, An air inlet (27) is connected to the top of the exhaust gas heat exchange pipe (24) in a communicating manner, an air outlet (28) is connected to the bottom of the exhaust gas heat exchange pipe (24) in a communicating manner, and the air outlet (28) is connected to an externally buried exhaust gas discharge pipe in a communicating manner; A filter pipe (29) is detachably mounted between the exhaust end of the fan (5) and the air inlet (27) through bolts, and multiple groups of dust filter meshes (30) are installed at intervals inside the filter pipe (29).

10. The energy-saving gas wall-mounted boiler according to claim 9, wherein On one side of the box body (1), a plurality of support rods (31) are fixed. On one side of the filter box (8), a plurality of mounting brackets (32) are fixed. The mounting brackets (32) and the support rods (31) are connected by a number of high-strength bolts (33).

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