Condensing device of boiler

Abstract

The utility model discloses a boiler condensing device which comprises a condensing tower, a butt joint hole is formed in the outer wall of the condensing tower, a smoke inlet pipe is fixedly connected to the inner wall of the butt joint hole, a transfer box is fixedly connected to the inner wall of the condensing tower, and the bottom of the smoke inlet pipe is fixedly communicated with the top of the transfer box. And a plurality of stand columns are fixedly connected to the inner wall of the transfer box, the bottoms of the multiple stand columns are fixedly connected with the same dispersion plate, and a high-pressure water pipe fixedly communicates with the outer wall of the condensing tower. Through the arrangement of the water pump, the high-pressure water pipe, the mixing pipe, the annular collecting frames and the annular sealing cover, scale depositing and coking parts in the multiple disc-shaped condensation pipes are washed, sewage is filtered along the two conical filter screens, large-particle impurities enter the two annular collecting frames along water flow to be independently collected, and therefore the large-particle impurities can be recycled. The two conical filter screens are prevented from being blocked, the self-cleaning process is completed, and the follow-up heat exchange effect of the multiple disc-shaped condensation pipes is prevented from being affected.

Description

Technical Field

[0001] The utility model relates to the technical field of boilers, in particular to a boiler condensing device. Background Art

[0002] Boiler condensation is the process of cooling water vapor and condensing it into liquid water using a condenser. In the boiler, water is heated and converted into steam, which is then discharged from the boiler along with the flue gas. However, steam carries a large amount of heat. If it can be condensed into water, the heat can be recycled, which not only improves fuel utilization but also reduces environmental emissions.

[0003] In the prior art, when steam is discharged along with the flue gas, the condenser tube in the condenser condenses the flue gas, and the water vapor in the flue gas is liquefied into water. Due to the pre-position of the condenser, after the subsequent flue gas enters, impurities or particles are easily adhered to the outer wall of the condenser tube, forming scaling and coking, resulting in poor subsequent heat exchange effect of the condenser tube, affecting the condensation of water vapor in the flue gas and the recycling of cooling water heat exchange. Therefore, we propose a boiler condensing device to solve the above problems. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a boiler condensing device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A boiler condensing device comprises a condensing tower, wherein a docking hole is formed on the outer wall of the condensing tower, a flue gas inlet pipe is fixedly connected to the inner wall of the docking hole, a transfer box is fixedly connected to the inner wall of the condensing tower, the bottom of the flue gas inlet pipe is fixedly connected to the top of the transfer box, a plurality of columns are fixedly connected to the inner wall of the transfer box, a plurality of columns are fixedly connected to the bottoms of the plurality of columns are fixedly connected to the same dispersion plate, a high-pressure water pipe is fixedly connected to the outer wall of the condensing tower, one end of the high-pressure water pipe is fixedly connected to the outer wall of the transfer box, a condensing mechanism is provided inside the condensing tower, and a filtering mechanism is provided inside the condensing tower.

[0007] Preferably, the condensing mechanism includes a baffle, a plurality of disc-shaped condensing tubes are evenly fixed and interconnected at the bottom of the transfer box, a plurality of mounting holes are evenly opened on the outer wall of the baffle, the inner walls of the plurality of mounting holes are respectively fixedly connected to the outer walls of the plurality of disc-shaped condensing tubes, and the outer wall of the baffle is fixedly connected to the inner wall of the condensation tower. By arranging the baffle and the transfer box, a condensation area is formed in the condensation tower to facilitate the entry of cooling water for heat exchange with the plurality of disc-shaped condensing tubes.

[0008] Preferably, the filtering mechanism includes two conical filter screens, the outer walls of the two conical filter screens are fixedly connected to the inner wall of the condensation tower, the outer wall of the condensation tower is fixedly sleeved with an annular collecting frame, the outer wall of the condensation tower is provided with a plurality of arc holes, the inner wall of the annular collecting frame is threadedly connected with an annular sealing cover, the annular sealing cover is opened to place the existing sewage pump into the annular collecting frame, and the impurities and sewage inside it are cleaned uniformly.

[0009] Preferably, a mixing tube is fixedly connected to the outer wall of the high-pressure water pipe, and a water pump is fixedly connected to one end of the high-pressure water pipe and the mixing tube.

[0010] Preferably, an inlet pipe and an outlet pipe are fixedly connected to the outer wall of the condensation tower, and a pump body is fixedly connected to one end of the inlet pipe. The pump body is provided to continuously transport cold water into the condensation tower, and hot water after heat exchange is discharged from the outlet pipe for separate use, thereby achieving the purpose of waste heat utilization.

[0011] Preferably, a smoke exhaust pipe and a condensate drain pipe are fixedly connected to the outer wall of the condensation tower.

[0012] Preferably, valves are fixedly installed on the outer walls of the flue gas inlet pipe, the high-pressure water pipe and the condensate drain pipe.

[0013] Compared with the prior art, the advantages of the utility model are:

[0014] This solution disperses the flue gas to all sides by setting up transfer boxes, columns, dispersion plates, disc-shaped condenser tubes, baffles, water inlet pipes, water outlet pipes and conical filters to prevent the flue gas from being discharged from a few disc-shaped condenser tubes due to excessively high flow rates, thereby improving the condensation efficiency and intercepting large particles of impurities in the flue gas to avoid clogging the pipes and affecting the discharge of condensed water.

[0015] By setting up a water pump, a high-pressure water pipe, a mixing tube, an annular collection frame and annular sealing cover, the scale and coking parts inside the multiple disc-shaped condensers are flushed, the sewage is filtered along the two conical filters, and the large particles of impurities flow into the two annular collection frames for separate collection, avoiding clogging of the two conical filters, completing the self-cleaning process, and avoiding affecting the subsequent heat exchange effect of the multiple disc-shaped condensers. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the description of the specific implementation methods will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1This is a three-dimensional structural schematic diagram of a boiler condensing device proposed by the utility model;

[0018] Figure 2 This is a schematic cross-sectional structure diagram of a boiler condensing device proposed by the utility model;

[0019] Figure 3 A boiler condensing device proposed by the utility model Figure 2 A schematic diagram of the enlarged structure of part A in the figure.

[0020] In the figure: 1. Condensation tower; 2. Flue gas inlet pipe; 3. Transfer box; 4. Column; 5. Dispersion plate; 6. High-pressure water pipe; 7. Mixing pipe; 8. Disc condenser; 9. Baffle; 10. Water inlet pipe; 11. Water outlet pipe; 12. Conical filter; 13. Annular collection frame; 14. Annular sealing cover; 15. Flue gas exhaust pipe; 16. Condensate drain pipe; 17. Valve. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Depend on Figure 1-Figure 3 As shown, it relates to a boiler condensing device, including a condensing tower 1. The outer wall of the condensing tower 1 is provided with a docking hole, the inner wall of the docking hole is fixedly connected with a flue gas inlet pipe 2, the inner wall of the condensing tower 1 is fixedly connected with a transfer box 3, the boiler flue gas enters the transfer box 3 through the flue gas inlet pipe 2, and the bottom of the flue gas inlet pipe 2 is fixedly connected to the top of the transfer box 3.

[0023] The inner wall of the transfer box 3 is fixedly connected with multiple columns 4, and the bottoms of the multiple columns 4 are fixedly connected with the same dispersion plate 5. The multiple columns 4 support the dispersion plate 5. After the flue gas with a fast flow rate hits the dispersion plate 5, the flue gas is dispersed to the surroundings. The outer wall of the condensation tower 1 is fixedly connected with a high-pressure water pipe 6, and the outer wall of the high-pressure water pipe 6 is fixedly connected with a mixing tube 7. One end of the high-pressure water pipe 6 and the mixing tube 7 are fixedly connected with water pumps. The two water pumps are operated to allow a mixed liquid of water and cleaning agent to enter the transfer box 3, and the water flows downward into the multiple disc-shaped condensing tubes 8 to flush the scale and coking parts inside. One end of the high-pressure water pipe 6 is fixedly connected with the outer wall of the transfer box 3.

[0024] The outer wall of the condensation tower 1 is fixedly connected with an inlet pipe 10 and an outlet pipe 11, one end of the inlet pipe 10 is fixedly connected with a pump body, the outer wall of the condensation tower 1 is fixedly connected with a flue gas exhaust pipe 15 and a condensate drain pipe 16, and the outer walls of the flue gas inlet pipe 2, the high-pressure water pipe 6 and the condensate drain pipe 16 are fixedly installed with valves 17.

[0025] A condensation mechanism is provided inside the condensation tower 1, and the condensation mechanism includes a baffle 9. A plurality of disc-shaped condensation tubes 8 are evenly fixed and interconnected at the bottom of the transfer box 3. The plurality of disc-shaped condensation tubes 8 are arranged in a ring shape. Cooling water contacts the plurality of disc-shaped condensation tubes 8 to cool the water vapor in the flue gas. A plurality of mounting holes are evenly opened on the outer wall of the baffle 9. The inner walls of the plurality of mounting holes are respectively fixedly connected to the outer walls of the plurality of disc-shaped condensation tubes 8. The outer wall of the baffle 9 is fixedly connected to the inner wall of the condensation tower 1.

[0026] A filtering mechanism is provided inside the condensation tower 1, and the filtering mechanism includes two conical filter screens 12. The outer walls of the two conical filter screens 12 are fixedly connected to the inner wall of the condensation tower 1. The two conical filter screens 12 filter large particles of impurities in the flue gas and sewage. The outer wall of the condensation tower 1 is fixedly sleeved with an annular collecting frame 13, and the annular collecting frame 13 collects large particles of impurities. The outer wall of the condensation tower 1 is provided with a plurality of arc holes, and the plurality of arc holes are divided into two groups, an upper and a lower group, corresponding to the two conical filter screens 12 respectively. The inner wall of the annular collecting frame 13 is threadedly connected with an annular sealing cover 14.

[0027] Working principle: When in use, the boiler flue gas enters the transfer box 3 through the flue gas inlet pipe 2, and after the flue gas enters and impacts the dispersion plate 5, the flue gas is dispersed to the surroundings to avoid the flue gas flow rate being too fast and concentrated to be discharged from a few disc-shaped condenser tubes 8. When the flue gas flows in multiple disc-shaped condenser tubes 8, the pump body transports cooling water through the water inlet pipe 10 to the cavity between the baffle 9 and the transfer box 3, so that the cooling water fills the local area in the middle of the condensation tower 1, and cools the multiple disc-shaped condenser tubes 8, thereby condensing the water vapor in the flue gas into water droplets. The water droplets drip along the disc-shaped condenser tubes 8 onto the two conical filter screens 12, and fall down from the holes and are discharged through the condensate drain pipe 16. After the flue gas is condensed and passes through the two conical filter screens 12, the large particles of impurities in the flue gas are trapped on the top of the two conical filter screens 12. As the water droplets continue to fall, they impact the two conical filter screens 12, and the large particles Impurities slowly slide around through the inclined surface of the conical filter 12, and finally the flue gas is discharged from the flue gas exhaust pipe 15. When it is necessary to clean the inside of the multiple disc-shaped condenser tubes 8, close the valve 17 on the flue gas inlet pipe 2, open the valve 17 on the high-pressure water pipe 6, one of the water pumps transports the detergent mixing tube 7 to the high-pressure water pipe 6, and the other water pump transports water to the high-pressure water pipe 6. The mixed liquid enters the transfer box 3, and the water flows downward into the multiple disc-shaped condenser tubes 8 to rinse the scale and coking parts inside. The sewage is filtered along the two conical filter screens 12, and large particles of impurities follow the water flow through multiple arc holes into the two annular collection frames 13. Due to the high-position setting of the annular collection frame 13, when the liquid level is high, the internal sewage re-enters the two conical filter screens 12 for filtration, and the remaining sewage is discharged from the condensate drain pipe 16 and collected separately.

[0028] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A boiler condensing device, comprising a condensing tower (1), characterized in that: The outer wall of the condensation tower (1) is provided with a docking hole, the inner wall of the docking hole is fixedly connected to a flue gas inlet pipe (2), the inner wall of the condensation tower (1) is fixedly connected to a transfer box (3), the bottom of the flue gas inlet pipe (2) and the top of the transfer box (3) are fixedly connected, the inner wall of the transfer box (3) is fixedly connected to a plurality of columns (4), the bottoms of the plurality of columns (4) are fixedly connected to the same dispersion plate (5), the outer wall of the condensation tower (1) is fixedly connected to a high-pressure water pipe (6), one end of the high-pressure water pipe (6) is fixedly connected to the outer wall of the transfer box (3), a condensation mechanism is provided inside the condensation tower (1), and a filtering mechanism is provided inside the condensation tower (1).

2. A boiler condensing device according to claim 1, characterized in that: The condensing mechanism comprises a baffle (9), a plurality of disc-shaped condensing tubes (8) are evenly fixed and interconnected at the bottom of the transfer box (3), a plurality of mounting holes are evenly opened on the outer wall of the baffle (9), the inner walls of the plurality of mounting holes are respectively fixedly connected to the outer walls of the plurality of disc-shaped condensing tubes (8), and the outer wall of the baffle (9) is fixedly connected to the inner wall of the condensing tower (1).

3. A boiler condensing device according to claim 1, characterized in that: The filtering mechanism comprises two conical filter screens (12), the outer walls of the two conical filter screens (12) are fixedly connected to the inner wall of the condensation tower (1), the outer wall of the condensation tower (1) is fixedly sleeved with an annular collection frame (13), the outer wall of the condensation tower (1) is provided with a plurality of arc-shaped holes, and the inner wall of the annular collection frame (13) is threadedly connected with an annular sealing cover (14).

4. A boiler condensing device according to claim 1, characterized in that: A mixing tube (7) is fixedly connected to the outer wall of the high-pressure water pipe (6), and a water pump is fixedly connected to one end of the high-pressure water pipe (6) and the mixing tube (7).

5. A boiler condensing device according to claim 1, characterized in that: A water inlet pipe (10) and a water outlet pipe (11) are fixedly connected to the outer wall of the condensation tower (1), and a pump body is fixedly connected to one end of the water inlet pipe (10).

6. A boiler condensing device according to claim 1, characterized in that: The outer wall of the condensation tower (1) is fixed with a smoke exhaust pipe (15) and a condensed water drain pipe (16) which are in communication with each other.

7. A boiler condensing device according to claim 6, characterized in that: Valves (17) are fixedly mounted on the outer walls of the flue gas inlet pipe (2), the high-pressure water pipe (6) and the condensate water drain pipe (16).

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