Efficient condensation steam boiler

Abstract

The utility model discloses an efficient condensation steam boiler which aims to solve the problems that an existing condensation system mostly adopts condensation pipes of a single-row structure, the heat exchange area is limited, large heat loss is caused, the mode of only using water cooling is single, and the recovery rate of heat energy in high-temperature flue gas is low. According to the technical scheme, the efficient condensation steam boiler is characterized in that the efficient condensation steam boiler comprises a boiler body, a smoke exhaust pipe is arranged on the boiler body, a condensation box is arranged on one side of the boiler body, a condensation pipe is arranged in the condensation box, the condensation pipe is spirally arranged in a continuous S-shaped structure, and the two ends of the condensation pipe extend out of the condensation box. According to the efficient condensation steam boiler, through the design of the S-shaped spiral condensation pipe, the flowing path of high-temperature smoke in the condensation box is prolonged, the heat exchange area is increased, the double cooling modes of water cooling and air cooling are combined, the heat energy recovery efficiency is remarkably improved, the smoke exhaust temperature is effectively reduced, more heat energy is recovered, and energy consumption is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of boilers, and more particularly to a high-efficiency condensing steam boiler. Background Art

[0002] Steam boilers are commonly used in industrial production as heat conversion equipment. Their primary function is to boil water, generating high-temperature, high-pressure steam. Exhaust gas temperature is a key energy consumption indicator in steam boilers, as high-temperature exhaust gas carries away a significant amount of heat energy. If this heat energy is not effectively utilized, it results in energy waste.

[0003] This requires equipping the steam boiler with a condensing system to absorb the sensible heat of the exhaust gas at the boiler's tail end and the latent heat released by the condensation of water vapor, thereby improving the boiler's thermal efficiency. This not only reduces energy consumption, but also achieves the effect of energy conservation and emission reduction.

[0004] However, since the existing condensation systems mostly use single-row condenser tubes, the heat exchange area is limited, resulting in large heat losses. In addition, the use of only water cooling is relatively simple, and there is also a problem of low heat energy recovery in high-temperature flue gas. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the purpose of the present invention is to provide a high-efficiency condensing steam boiler. The design of the S-shaped spiral condenser tube extends the flow path of the high-temperature flue gas in the condensing box, increases the heat exchange area, and combines the dual cooling methods of water cooling and air cooling to significantly improve the heat recovery efficiency, effectively reduce the exhaust temperature, recover more heat energy, and reduce energy consumption.

[0006] The above-mentioned technical objectives of the present utility model are achieved through the following technical solutions: a high-efficiency condensing steam boiler, comprising a boiler body, a smoke exhaust pipe is provided on the boiler body, a condensation box is provided on one side of the boiler body, a condensation pipe is provided in the condensation box, the condensation pipe is spirally arranged in a continuous S-shaped structure, both ends of the condensation pipe extend to the outside of the condensation box, and the upper end of the condensation pipe is connected to the smoke exhaust pipe, and a water cooling component and an air cooling component are arranged around the condensation pipe; the water cooling component includes a condensation water tank arranged outside the condensation box, a semiconductor refrigeration plate is provided in the condensation water tank, a water outlet pipe is vertically provided on the condensation water tank, a first water pump is provided on the water outlet pipe, and a number of evenly distributed spray pipes are connected to the water outlet pipe, the other ends of the number of spray pipes pass through the side wall of the condensation box and are provided with a spray head, a drain outlet is provided at the bottom of the condensation box, a drain pipe is provided on the drain outlet, and a second water pump is provided on the drain pipe.

[0007] The utility model is further configured as follows: the air cooling assembly comprises a plurality of air cooling seats evenly arranged on the top wall of the condensation box, and a fan is arranged in the air cooling seat.

[0008] The utility model is further configured as follows: a plurality of evenly distributed heat exchange fins are provided on the condenser tube, and the width directions of the plurality of heat exchange fins are parallel to the spraying direction of the spray head.

[0009] The utility model is further configured as follows: a plurality of mounting seats are provided on the side walls of the condensation box, and a through hole for the water outlet pipe to pass through is opened on the mounting seats.

[0010] The utility model is further configured as follows: two first upright frames are provided on one side of the condenser tube, both ends of the two first upright frames are fixedly connected to the inner wall of the condenser box, a plurality of first support blocks are provided on the first upright frame, a second upright frame is detachably connected to the first upright frame through fasteners, a second support block corresponding to the first support block is provided on the second upright frame, and an installation groove that fits the outer wall of the condenser tube is provided on the opposite side of the first support block and the second support block.

[0011] In summary, the present invention has the following beneficial effects:

[0012] The design of the S-shaped spiral condenser tube extends the flow path of the high-temperature flue gas in the condensation box, increases the heat exchange area, and combines the dual cooling methods of water cooling and air cooling to significantly improve the heat recovery efficiency, effectively reduce the exhaust temperature, recover more heat energy, and reduce energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a front structural diagram of the steam boiler of the present utility model;

[0014] Figure 2 This is a side structural diagram of the steam boiler of the present invention.

[0015] In the figure: 1. Boiler body; 2. Smoke exhaust pipe; 3. Condensate tank; 4. Condensate pipe; 5. Condensate water tank; 6. Semiconductor refrigeration plate; 7. Water outlet pipe; 8. First water pump; 9. Spray pipe; 10. Spray head; 11. Drain pipe; 12. Second water pump; 13. Air cooling seat; 14. Fan; 15. Heat exchange fins; 16. Mounting seat; 17. First stand; 18. First support block; 19. Second stand; 20. Second support block. DETAILED DESCRIPTION

[0016] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, unless there is a conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0017] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0018] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "sleeved / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood by those skilled in the art in specific circumstances.

[0019] The present invention will be described in detail below with reference to the accompanying drawings.

[0020] Reference Figure 1-Figure 2 A high-efficiency condensing steam boiler includes a boiler body 1, a flue gas exhaust pipe 2 is provided on the boiler body 1, a condensation box 3 is provided on one side of the boiler body 1, and a condensation pipe 4 is provided in the condensation box 3. In this embodiment, two parallel condensation water pipes are used, and the condensation pipe 4 is spirally arranged in a continuous S-shaped structure. Both ends of the condensation pipe 4 extend to the outside of the condensation box 3, and the upper end of the condensation pipe 4 is connected to the flue gas exhaust pipe 2. A water cooling component and an air cooling component are provided around the condensation pipe 4;

[0021] The water cooling assembly includes a condensing water tank 5 arranged outside the condensing tank 3, and a semiconductor refrigeration plate 6 is fixedly installed in the condensing water tank 5. The cold end of the semiconductor refrigeration plate 6 is located inside the condensing water tank 5, and the hot end of the semiconductor refrigeration plate 6 is located outside the condensing water tank 5. A water outlet pipe 7 is vertically connected to the condensing water tank 5, and a first water pump 8 is provided on the water outlet pipe 7. The water outlet pipe 7 is connected to a number of evenly distributed spray pipes 9, and the other ends of the several spray pipes 9 all pass through the side wall of the condensing tank 3 and are fixed with a spray head 10. A drain outlet is opened at the bottom of the condensing tank 3, and the drain outlet is connected to a drain pipe 11, and a second water pump 12 is provided on the drain pipe 11.

[0022] The air cooling assembly includes a plurality of air cooling seats 13 evenly fixed on the inner top wall of the condensation box 3 , and a fan 14 is fixedly installed in the air cooling seat 13 .

[0023] A number of evenly distributed heat exchange fins 15 are fixed on the condenser tube 4. The width directions of the heat exchange fins 15 are parallel to the spraying direction of the spray head 10. The heat exchange fins 15 further increase the heat exchange area, accelerate the transfer and release of heat, and improve the condensation efficiency. The layout of the heat exchange fins 15 is parallel to the spraying direction, ensuring uniform coverage of the condensed water.

[0024] Several mounting seats 16 are fixedly provided on the side walls of the condensation tank 3. The mounting seats 16 are provided with through holes for the water outlet pipe 7 to pass through. The design of the mounting seats 16 enhances the connection strength of the water outlet pipe 7 and improves the stability of the overall structure.

[0025] Two first uprights 17 are provided on one side of the condenser 4, and both ends of the two first uprights 17 are fixedly connected to the inner wall of the condenser box 3. A plurality of first support blocks 18 are fixed on the first upright 17, and the first upright 17 is detachably connected to the second upright 19 by fasteners. The fasteners in this embodiment are fastening bolts. A second support block 20 corresponding to the first support block 18 is fixed on the second upright 19. The first support block 18 and the second support block 20 are provided on opposite sides with mounting grooves that fit with the outer wall of the condenser 4. The first support block 18 and the second support block 20 effectively enhance the supporting stability of the condenser 4 and prevent it from falling off or being damaged due to high temperature or vibration. The detachable connection design of the second upright 19 and the first upright 17 facilitates the installation, disassembly and replacement of the condenser 4, and improves maintenance efficiency.

[0026] Working principle: The high-temperature flue gas generated by the boiler body 1 is introduced into the condenser 4. The design of the S-shaped spiral condenser 4 extends the flow path of the high-temperature flue gas in the condenser box 3 and increases the heat exchange area. The semiconductor refrigeration plate 6 controls the condensed water temperature in the condenser water tank 5, and starts the first water pump 8. The outlet pipe 7 extracts condensed water through the first water pump 8 and evenly sprays it onto the surface of the condenser 4 through the spray head 10 on the spray pipe 9, thereby performing heat exchange with the high-temperature flue gas in the condenser tube 4 to achieve water cooling. The condensed water after the heat exchange becomes hot water and falls and gathers at the lower end of the condenser box 3. This part of the hot water is discharged through the second water pump 12, thereby realizing the utilization of the waste heat of the flue gas. While water cooling is being carried out, the fan 14 is started. Through the forced convection effect of the fan 14, the flow of air around the condenser tube 4 and the evaporation of water on the surface of the condenser tube 4 are further accelerated, taking away more heat, enhancing the heat exchange effect, and helping to improve the efficiency of heat dissipation and cooling of the high-temperature flue gas.

[0027] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A high-efficiency condensing steam boiler, comprising a boiler body (1), wherein the boiler body (1) is provided with a smoke exhaust pipe (2), characterized in that: A condenser box (3) is provided on one side of the boiler body (1), and a condenser pipe (4) is provided in the condenser box (3). The condenser pipe (4) is spirally provided in a continuous S-shaped structure. Both ends of the condenser pipe (4) extend to the outside of the condenser box (3), and the upper end of the condenser pipe (4) is connected to the exhaust pipe (2). A water cooling component and an air cooling component are provided around the condenser pipe (4); the water cooling component includes a condenser water tank (5) provided outside the condenser box (3), and a semi-cooled air cooling component is provided in the condenser water tank (5). Conductor refrigeration plate (6), a water outlet pipe (7) is vertically arranged on the condensing water tank (5), a first water pump (8) is arranged on the water outlet pipe (7), a plurality of evenly distributed spray pipes (9) are connected to the water outlet pipe (7), the other ends of the plurality of spray pipes (9) pass through the side wall of the condensing tank (3) and are provided with a spray head (10), a drain port is opened at the bottom of the condensing tank (3), a drain pipe (11) is arranged on the drain port, and a second water pump (12) is arranged on the drain pipe (11).

2. A high-efficiency condensing steam boiler according to claim 1, characterized in that: The air cooling assembly comprises a plurality of air cooling seats (13) evenly arranged on the inner top wall of the condensation box (3), and a fan (14) is arranged in the air cooling seat (13).

3. A high-efficiency condensing steam boiler according to claim 1, characterized in that: The condenser tube (4) is provided with a plurality of evenly distributed heat exchange fins (15), and the width directions of the plurality of heat exchange fins (15) are parallel to the spraying direction of the spray head (10).

4. The high-efficiency condensing steam boiler according to claim 1, characterized in that: A plurality of mounting seats (16) are provided on the side wall of the condensation box (3), and a through hole for the water outlet pipe (7) to pass through is opened on the mounting seat (16).

5. The high-efficiency condensing steam boiler according to claim 1, characterized in that: Two first upright frames (17) are provided on one side of the condenser tube (4), both ends of the two first upright frames (17) are fixedly connected to the inner wall of the condenser box (3), a plurality of first support blocks (18) are provided on the first upright frame (17), a second upright frame (19) is detachably connected to the first upright frame (17) through fasteners, a second support block (20) corresponding to the first support block (18) is provided on the second upright frame (19), and the first support block (18) and the second support block (20) are provided with mounting grooves on the opposite sides thereof, which are fitted with the outer wall of the condenser tube (4).

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