Corrosion-resistant full-premixing variable-frequency condensing boiler

Abstract

The utility model belongs to the technical field of full-premixing variable-frequency condensing boilers, and particularly relates to a corrosion-resistant full-premixing variable-frequency condensing boiler which comprises a boiler body, a sliding groove is formed in the boiler body, and a first heat exchanger and a second heat exchanger are arranged in the boiler body. Sliding blocks are fixedly connected to the bottoms of the first heat exchanger and the second heat exchanger; an external fixing rod is used for fixing the position of the second heat exchanger, then the first heat exchanger is pulled outwards to drive a positioning block to move synchronously, so that a silicone rubber pad and a spring are moved out of a positioning groove, only the first heat exchanger can be detached, the detaching process of the first heat exchanger is simple, the time needed for detaching can be shortened, and the detaching efficiency is improved. And meanwhile, the second heat exchanger is located in the boiler body and continues to operate, so that the operation stopping time of the corrosion-resistant full-premixing variable-frequency condensing boiler is shortened, and the maintenance cost of the corrosion-resistant full-premixing variable-frequency condensing boiler is reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of fully premixed variable frequency condensing boilers, specifically a corrosion-resistant fully premixed variable frequency condensing boiler. Background Technology

[0002] The corrosion-resistant fully premixed variable frequency condensing boiler is an energy-saving boiler that combines fully premixed combustion technology and condensing technology. This type of boiler not only has the characteristics of high efficiency and energy saving, but also has strong corrosion resistance and can adapt to various complex working environments. Therefore, it is widely used in industrial and other fields.

[0003] A Chinese patent with authorization announcement number CN221881797U discloses a corrosion-resistant fully premixed variable frequency condensing boiler, including a boiler body. A mixing component is installed on the outside of the boiler body. This design reduces the possibility of incomplete combustion due to insufficient contact between gas and air, reduces the possibility of corrosion of the boiler body by unburned gas, improves the mixing effect of gas in the device, enables gas and air to be fully mixed to achieve the effect of complete combustion, avoids unburned gas from entering the boiler, and also improves the neutralization effect of condensate in the boiler, reducing the acidity of condensate and greatly avoiding corrosion.

[0004] However, the above solutions still have some problems. The heat exchanger is designed to be fixed, and the disassembly and installation process is complicated, requiring professional tools and a long time, which increases maintenance costs and downtime. Therefore, a corrosion-resistant, fully premixed variable frequency condensing boiler is proposed to address the above problems. Utility Model Content

[0005] To overcome the shortcomings of existing technologies and address the problems of existing equipment, this utility model proposes a corrosion-resistant, fully premixed, variable frequency condensing boiler.

[0006] The technical solution adopted by this utility model to solve its technical problem is a corrosion-resistant, fully premixed, variable frequency condensing boiler, comprising: a boiler body, wherein a sliding groove is formed inside the boiler body, and a first heat exchanger and a second heat exchanger are arranged inside the boiler body. A slider is fixedly connected to the bottom of both the first and second heat exchangers, and the slider is movably connected inside the sliding groove. A positioning block is fixedly connected to one side of the first heat exchanger, and a rod is fixedly connected to one side of the second heat exchanger. The rod is movably connected inside the positioning block, and silicone rubber pads are symmetrically fixedly connected to the rod. A spring is fixedly connected to the inner wall of the silicone rubber pad, and one end of the spring is fixedly connected to one side of the rod. Positioning grooves are symmetrically formed inside the positioning block, and the silicone rubber pads are movably connected inside the positioning grooves. The silicone rubber pads are fixed in the positioning grooves by the elastic force of the springs, thus connecting the first and second heat exchangers.

[0007] Preferably, a transmission pipe is installed on one side of the boiler body, one end of the transmission pipe extends into the interior of the boiler body, a water pump is installed on the transmission pipe, one end of the transmission pipe is connected to a water tank, and the other end of the transmission pipe extends into the interior of the transmission pipe. When the water pump is started, the condensate in the water tank can be pumped into the water distribution pipe through the transmission pipe.

[0008] Preferably, the water pump is installed on the upper surface of the water tank, the water tank has a water inlet, and the other end of the transmission pipe is fixedly connected to a water distribution pipe. The outlet end of the water distribution pipe is threadedly connected to an atomizing nozzle. If the condensate content in the water tank is insufficient, sufficient condensate can be added to the water tank through the water inlet, thereby avoiding affecting the normal operation of the fully premixed variable frequency condensing boiler.

[0009] Preferably, the water distribution pipe and the atomizing nozzle are both located inside the boiler body, and the water distribution pipe and the atomizing nozzle are located above one side of the second heat exchanger. The atomizing nozzle sprays condensate into the interior of the boiler body, which can improve the uniformity of condensate distribution and increase the contact area with flue gas, thereby promoting heat transfer and improving heat exchange efficiency.

[0010] Preferably, a combustion chamber is installed below the boiler body, a burner is installed on one side of the combustion chamber, the output end of the burner extends into the interior of the combustion chamber, and a cover is hinged to one side of the boiler body. The cover can be released by unscrewing the bolts from the two sets of connecting plates, thereby facilitating the maintenance and cleaning of the interior of the boiler body.

[0011] Preferably, a connecting plate is fixedly connected to one side of both the cover and the boiler body, and bolts are threadedly connected to the two sets of connecting plates. A water outlet pipe, a water return pipe, and a flue pipe are installed on the top of the boiler body. The main function of the water outlet pipe is to transport the hot water heated by the boiler to the heating system or hot water supply system, so that the corrosion-resistant fully premixed variable frequency condensing boiler can meet the user's heating needs.

[0012] The advantages of this invention are: by using an external fixing rod to fix the position of the second heat exchanger, and then pulling the first heat exchanger outward, the positioning block moves synchronously, thereby allowing the silicone rubber pad and spring to be removed from the positioning groove. This allows only the first heat exchanger to be disassembled, making the disassembly process of the first heat exchanger simpler and reducing the time required for disassembly. At the same time, the second heat exchanger continues to operate inside the boiler body, thereby reducing the downtime of the corrosion-resistant fully premixed variable frequency condensing boiler and reducing the maintenance cost of the corrosion-resistant fully premixed variable frequency condensing boiler.

[0013] This utility model starts the water pump, which draws the condensate from the water tank into the distribution pipe through the transmission pipe, and then sprays the condensate into the interior of the boiler body through the atomizing nozzle. This improves the uniformity of condensate distribution and increases the contact area with flue gas, thereby promoting heat transfer, improving heat exchange efficiency, and ultimately enhancing the overall performance of the corrosion-resistant fully premixed variable frequency condensing boiler. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure;

[0016] Figure 2 This is a schematic cross-sectional view of the overall structure;

[0017] Figure 3 This is a schematic diagram of a heat exchanger assembly;

[0018] Figure 4 This is a cross-sectional view of the connecting components;

[0019] Figure 5 This is a schematic diagram of the spray system.

[0020] In the diagram: 1. Boiler body; 2. Slide rail; 3. First heat exchanger; 4. Second heat exchanger; 5. Sliding block; 6. Positioning block; 7. Insert rod; 8. Silicone rubber pad; 9. Spring; 10. Positioning groove; 11. Transmission pipe; 12. Water pump; 13. Water tank; 14. Water inlet; 15. Water distribution pipe; 16. Atomizing nozzle; 17. Combustion chamber; 18. Burner; 19. Cover; 20. Connecting plate; 21. Bolt; 22. Water outlet pipe; 23. Water return pipe; 24. Flue gas outlet pipe. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0022] Please see Figure 1-5As shown, a corrosion-resistant fully premixed variable frequency condensing boiler includes: a boiler body 1, a sliding groove 2 inside the boiler body 1, a first heat exchanger 3 and a second heat exchanger 4 inside the boiler body 1, a slider 5 fixedly connected to the bottom of both the first heat exchanger 3 and the second heat exchanger 4, the slider 5 being movably connected inside the sliding groove 2, a positioning block 6 fixedly connected to one side of the first heat exchanger 3, an insertion rod 7 fixedly connected to one side of the second heat exchanger 4, the insertion rod 7 being movably connected inside the positioning block 6, silicone rubber pads 8 symmetrically fixedly connected to the insertion rod 7, a spring 9 fixedly connected to the inner wall of the silicone rubber pad 8, one end of the spring 9 being fixedly connected to one side of the insertion rod 7, and positioning grooves 10 symmetrically opened inside the positioning block 6, the silicone rubber pads 8 being movably connected inside the positioning grooves 10.

[0023] Existing fully premixed variable frequency condensing boilers have fixed heat exchangers, making disassembly and installation complex, requiring specialized tools and considerable time, increasing maintenance costs and downtime. Therefore, a corrosion-resistant fully premixed variable frequency condensing boiler is proposed. In practical use, the cover 19 is opened, and then the first heat exchanger 3 is pulled outwards. Through the cooperation of the silicone rubber pad 8 and the positioning groove 10, the second heat exchanger 4 moves synchronously. The two sets of sliders 5 move synchronously along the sliding groove 2, allowing the first and second heat exchangers 3 and 4 to be removed together from the boiler body 1. The position of the second heat exchanger 4 is fixed using an external fixing rod. Then, the first heat exchanger 3 is pulled outwards, causing the fixed rod to move synchronously. The positioning block 6 moves synchronously, allowing the silicone rubber pad 8 and spring 9 to move out of the positioning groove 10. This allows only the first heat exchanger 3 to be disassembled, while the second heat exchanger 4 continues to operate, thus reducing the downtime of the corrosion-resistant fully premixed variable frequency condensing boiler. After the first heat exchanger 3 is cleaned, the slider 5 is pushed along the slide groove 2 into the boiler body 1, causing the insertion rod 7 to enter the positioning block 6. When the first heat exchanger 3 and the second heat exchanger 4 are in contact, the silicone rubber pad 8 is fixed in the positioning groove 10 by the elastic force of the spring 9, thereby connecting the first heat exchanger 3 and the second heat exchanger 4. Then, the cover 19 is closed to fix the position of the first heat exchanger 3 and the second heat exchanger 4.

[0024] Please see Figure 1-5As shown, a transmission pipe 11 is installed on one side of the boiler body 1. One end of the transmission pipe 11 extends into the interior of the boiler body 1. A water pump 12 is installed on the transmission pipe 11. One end of the transmission pipe 11 is connected to a water tank 13, and the water pump 12 is installed on the upper surface of the water tank 13. A water inlet 14 is provided on the water tank 13. A water distribution pipe 15 is fixedly connected to the other end of the transmission pipe 11. An atomizing nozzle 16 is threadedly connected to the outlet end of the water distribution pipe 15. Both the water distribution pipe 15 and the atomizing nozzle 16 are located within the boiler body. Inside the main body 1, the water distribution pipe 15 and the atomizing nozzle 16 are located above one side of the second heat exchanger 4. A combustion chamber 17 is installed below the boiler body 1. A burner 18 is installed on one side of the combustion chamber 17. The output end of the burner 18 extends into the interior of the combustion chamber 17. A cover 19 is hinged to one side of the boiler body 1. A connecting plate 20 is fixedly connected to both the cover 19 and one side of the boiler body 1. Bolts 21 are threaded inside the two sets of connecting plates 20. A water outlet pipe 22, a water return pipe 23 and a flue pipe 24 are installed above the boiler body 1.

[0025] When the corrosion-resistant, fully premixed variable frequency condensing boiler is running, the water pump 12 is started, and the condensate in the water tank 13 is drawn into the distribution pipe 15 through the transmission pipe 11. Then, the condensate is sprayed into the interior of the boiler body 1 through the atomizing nozzle 16. This improves the uniformity of condensate distribution and increases the contact area with flue gas, thereby promoting heat transfer, improving heat exchange efficiency, and ultimately enhancing the overall performance of the corrosion-resistant, fully premixed variable frequency condensing boiler. During operation, the main function of the outlet pipe 22 is to transport the heated water from the boiler to the heating system or hot water supply system to meet the user's heating needs. The function of the return water pipe 23 is to return the cooled water from the heating system or hot water supply system to the boiler for reheating. The main function of the flue pipe 24 is to discharge the flue gas generated during combustion from the boiler to ensure the continuous combustion process. When cleaning the inside of the boiler body 1, the bolts 21 are unscrewed from the two sets of connecting plates 20 to release the cover 19, thus facilitating the maintenance and cleaning of the inside of the boiler body 1. Then, the bolts 21 are screwed into the two sets of connecting plates 20 and engaged with the hinge to fix and connect the cover 19 to one side of the boiler body 1, thereby sealing the boiler body 1.

[0026] The working principle is as follows: Unscrewing bolt 21 from the two sets of connecting plates 20 releases the fixation on the cover 19. Then, pulling the first heat exchanger 3 outwards, through the cooperation of the silicone rubber pad 8 and the positioning groove 10, causes the second heat exchanger 4 to move synchronously. The two sets of sliders 5 move synchronously along the sliding groove 2, allowing the first and second heat exchangers 3 and 4 to be disassembled and cleaned together from the boiler body 1. Alternatively, to reduce downtime of the corrosion-resistant fully premixed variable frequency condensing boiler, an external fixing rod can be used to fix the position of the second heat exchanger 4. Then, pulling the first heat exchanger 3 outwards causes the positioning block 6 to move synchronously, allowing the silicone rubber pad 8 and spring 9 to move out of the positioning groove 10. This allows only the first heat exchanger 3 to be disassembled, while the second heat exchanger 4 continues to operate, reducing boiler downtime and enabling cleaning of the first heat exchanger 3. After cleaning the first heat exchanger 3, the first heat exchanger 3 can be... The slider 5 is pushed into the boiler body 1 along the slide groove 2, so that the insertion rod 7 enters the positioning block 6. When the first heat exchanger 3 and the second heat exchanger 4 are in contact, the silicone rubber pad 8 is fixed in the positioning groove 10 by the elastic force of the spring 9, thereby connecting the first heat exchanger 3 and the second heat exchanger 4. Then the cover 19 is closed, which can fix the position of the first heat exchanger 3 and the second heat exchanger 4, thereby improving the convenience of fixing the first heat exchanger 3. When the corrosion-resistant fully premixed variable frequency condensing boiler is running, the water pump 12 is started, and the condensate in the water tank 13 is drawn into the water distribution pipe 15 through the transmission pipe 11. Then the condensate is sprayed into the interior of the boiler body 1 through the atomizing nozzle 16, which can improve the uniformity of condensate distribution and increase the contact area with flue gas, thereby promoting heat transfer, improving heat exchange efficiency, and thus improving the overall performance of the corrosion-resistant fully premixed variable frequency condensing boiler.

[0027] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A corrosion-resistant, fully premixed, variable frequency condensing boiler, characterized in that: include: The boiler body (1) has a sliding groove (2) inside. The boiler body (1) is equipped with a first heat exchanger (3) and a second heat exchanger (4). The bottom of the first heat exchanger (3) and the second heat exchanger (4) are fixedly connected to a slider (5). The slider (5) is movably connected inside the sliding groove (2). A positioning block (6) is fixedly connected to one side of the first heat exchanger (3). A plug rod (7) is fixedly connected to one side of the second heat exchanger (4). The plug rod (7) is movably connected inside the positioning block (6). A silicone rubber pad (8) is symmetrically fixedly connected to the plug rod (7). A spring (9) is fixedly connected to the inner wall of the silicone rubber pad (8). One end of the spring (9) is fixedly connected to one side of the plug rod (7). A positioning groove (10) is symmetrically opened inside the positioning block (6). The silicone rubber pad (8) is movably connected inside the positioning groove (10).

2. The corrosion-resistant, fully premixed, variable frequency condensing boiler according to claim 1, characterized in that: A transmission pipe (11) is installed on one side of the boiler body (1). One end of the transmission pipe (11) extends into the interior of the boiler body (1). A water pump (12) is installed on the transmission pipe (11). One end of the transmission pipe (11) is connected to a water tank (13), and one end of the transmission pipe (11) extends into the interior of the transmission pipe (11).

3. The corrosion-resistant, fully premixed, variable frequency condensing boiler according to claim 2, characterized in that: The water pump (12) is installed on the upper surface of the water tank (13), and the water tank (13) is provided with a water inlet (14). The other end of the transmission pipe (11) is fixedly connected to a water distribution pipe (15), and the outlet end of the water distribution pipe (15) is threadedly connected to an atomizing nozzle (16).

4. A corrosion-resistant, fully premixed, variable frequency condensing boiler according to claim 3, characterized in that: The water distribution pipe (15) and the atomizing nozzle (16) are both located inside the boiler body (1), and the water distribution pipe (15) and the atomizing nozzle (16) are located above one side of the second heat exchanger (4).

5. A corrosion-resistant, fully premixed, variable frequency condensing boiler according to claim 1, characterized in that: A combustion chamber (17) is installed below the boiler body (1), and a burner (18) is installed on one side of the combustion chamber (17). The output end of the burner (18) extends into the interior of the combustion chamber (17), and a cover (19) is hinged to one side of the boiler body (1).

6. A corrosion-resistant, fully premixed, variable frequency condensing boiler according to claim 5, characterized in that: The cover (19) and the boiler body (1) are both fixedly connected to one side of a connecting plate (20). The two sets of connecting plates (20) are internally threaded with bolts (21). The boiler body (1) is equipped with a water outlet pipe (22), a water return pipe (23) and a flue gas outlet pipe (24).

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