Condenser for utilizing flue gas at tail part of boiler

Abstract

The utility model relates to the technical field of condensers, in particular to a condenser for boiler tail smoke utilization, and adopts the technical scheme that the condenser comprises a shell, a collecting drawer and a spraying plate, a condensing pipe is mounted in the shell, a water outlet pipe is mounted at the top of the shell in an embedded manner, and a water inlet pipe is mounted at the bottom of the shell in an embedded manner; spraying plates are installed on the two sides of the top end in the shell correspondingly, a water pump is installed on the top of the shell on one side of the water outlet pipe, a water suction pipe is installed on the side, opposite to the water outlet pipe, of the water pump, and the end, away from the water pump, of the water suction pipe extends into the water outlet pipe. A first connecting pipe is installed at the bottom of the drainage pipe, the bottom of the first connecting pipe extends into the shell, a second connecting pipe is installed on the side face of the section, extending into the shell, of the first connecting pipe in an embedded mode, and a fixing frame is welded to the interior of the shell. The condenser has the advantages that the inner wall of the shell and the condenser pipe can be washed, and particulate matters are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of condensers, in particular to a condenser for utilizing boiler tail flue gas. Background Art

[0002] The condenser for utilizing flue gas at the tail end of the boiler is a device used to improve the energy efficiency of the boiler system and reduce environmental pollution. It mainly cools and condenses the water vapor in the flue gas to recover and utilize the heat therein. The condenser is usually installed on the flue or exhaust pipe of the boiler system and is at the end of the flue gas flow path.

[0003] During the combustion process, the flue gas generated by the boiler will carry fine particles, such as dust and coal ash. After these particles enter the condenser with the flue gas, they may condense and adhere to the inner wall of the condenser and the surface of the condensation pipe due to factors such as backflow or temperature changes. The particles adhering to the inner wall of the condenser and the surface of the condensation pipe will cause a variety of problems, such as affecting the heat exchange efficiency, increasing energy consumption, and reducing equipment life. Utility Model Content

[0004] The utility model aims to provide a condenser for utilizing the flue gas at the tail end of a boiler, which has the advantage of being able to flush the inner wall of the shell and the condenser tube to reduce particulate matter, thereby solving the problem that a large amount of particulate matter is left behind at the tail end of the condenser, affecting the use effect.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a condenser for utilizing flue gas from the tail end of a boiler, comprising a shell, a collecting bin and a spray plate, a condensing tube is installed inside the shell, a water outlet pipe is embedded and installed on the top of the shell, a water inlet pipe is embedded and installed on the bottom of the shell, spray plates are installed on both sides of the top end of the shell, a water pump is installed on the top of the shell on one side of the water outlet pipe, a suction pipe is installed on the side of the water pump opposite to the water outlet pipe, an end of the suction pipe facing away from the water pump extends into the water outlet pipe, a drain pipe is installed on the side of the water pump facing away from the water outlet pipe, a connecting pipe 1 is installed at the bottom of the drain pipe, the bottom of the connecting pipe 1 extends into the shell, a connecting pipe 2 is embedded and installed on the side of the connecting pipe 1 extending into the shell, and a fixing frame is welded inside the shell.

[0006] When using a condenser for utilizing boiler tail flue gas in the technical solution, connect the water inlet pipe and the water outlet pipe to the water conveying pipe, connect the air inlet pipe and the air outlet pipe to the boiler gas conveying pipe, cold water enters the inside of the condenser from the water inlet pipe, the boiler tail gas enters the inside of the shell from the air inlet pipe, the high-temperature tail gas heats the cold water inside the condenser, the water inside the condenser is discharged from the water outlet pipe, the tail gas inside the shell is discharged from the air outlet pipe, the water pump absorbs the water inside the water outlet pipe through the suction pipe, and then provides the water to connecting pipe one through the drain pipe, the water inside connecting pipe one enters the inside of connecting pipe two, connecting pipe one and connecting pipe two convey the water to the inside of two spray plates, the two spray plates spray water on the condenser and the inner wall of the shell, and the sewage is discharged from the discharge pipe and falls into the collection bin.

[0007] Preferably, the water inlet pipe and the water outlet pipe are respectively connected to the condenser pipe inside the shell. Cold water enters the condenser pipe from the water inlet pipe, and water inside the condenser pipe is discharged from the water outlet pipe.

[0008] Preferably, an air inlet pipe is embedded in one side of the shell, and an air outlet pipe is embedded in the other side of the shell. Boiler tail gas enters the shell from the air inlet pipe, and tail gas inside the shell is discharged from the air outlet pipe.

[0009] Preferably, valves are installed on the water inlet pipe and the water outlet pipe respectively. The water inlet pipe and the water outlet pipe can be controlled by using the valves.

[0010] Preferably, the bottom of the connecting pipe 1 is connected to a spray plate at one section inside the shell, and the bottom of the connecting pipe 2 is connected to a spray plate at the other side inside the shell. The connecting pipe 1 and the connecting pipe 2 transport water to the inside of the two spray plates, and the two spray plates spray water into the shell.

[0011] Preferably, a discharge pipe is embedded in the shell on one side of the water inlet pipe, and water in the shell is discharged from the discharge pipe.

[0012] Preferably, a fixing groove is provided on one side of the fixing frame, a fixing block is welded on the side of the collecting bin, and the fixing block is inserted into the fixing groove. The collecting bin is movably connected to the fixing frame through the fixing block and the fixing groove.

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

[0014] The utility model is provided with a water pump, a spray plate and a collecting bin. The water pump absorbs water in the water outlet pipe through a suction pipe, and then provides water to connecting pipe one through a drainage pipe. The water in connecting pipe one enters the inside of connecting pipe two. Connecting pipe one and connecting pipe two transport the water to the inside of two spray plates. The two spray plates spray water on the surface of the condenser pipe and the inner wall of the shell. The sewage is discharged from the discharge pipe and falls into the collecting bin, thereby achieving the effect of flushing the inner wall of the shell and the condenser pipe and reducing particulate matter. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model from a first angle;

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model from a second angle;

[0017] Figure 3 This is a schematic diagram of the three-dimensional structure of the utility model from a third angle;

[0018] Figure 4 It is a cross-sectional structural schematic diagram of the utility model.

[0019] In the figure: 1. fixing frame; 2. shell; 3. water pump; 4. water outlet pipe; 5. air outlet pipe; 6. collecting drawer; 7. air inlet pipe; 8. drain pipe; 9. water suction pipe; 10. discharge pipe; 11. water inlet pipe; 12. fixing groove; 13. fixing block; 14. connecting pipe 1; 15. connecting pipe 2; 16. spray plate; 17. condenser pipe. DETAILED DESCRIPTION

[0020] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0022] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general scale, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0023] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0024] Embodiment 1

[0025] like Figure 1-Figure 4As shown, a condenser for utilizing flue gas at the tail end of a boiler proposed by the utility model comprises a shell 2, a collecting drawer 6 and a spray plate 16, a condensing pipe 17 is installed inside the shell 2, a water outlet pipe 4 is embedded and installed on the top of the shell 2, a water inlet pipe 11 is embedded and installed on the bottom of the shell 2, valves are installed on the water inlet pipe 11 and the water outlet pipe 4 respectively, the water inlet pipe 11 and the water outlet pipe 4 are respectively connected to the condensing pipe 17 inside the shell 2, an air inlet pipe 7 is embedded and installed on one side of the shell 2, an air outlet pipe 5 is embedded and installed on the other side of the shell 2, spray plates 16 are installed on both sides of the top end of the shell 2 respectively, a water pump 3 is installed on the top of the shell 2 on one side of the water outlet pipe 4, a water suction pipe 9 is installed on the side of the water pump 3 opposite to the water outlet pipe 4, and the water suction pipe 9 is away from One end of the water pump 3 extends into the outlet pipe 4, and a drain pipe 8 is installed on the side of the water pump 3 facing away from the outlet pipe 4. A connecting pipe 14 is installed at the bottom of the drain pipe 8. The bottom of the connecting pipe 14 extends into the shell 2. A connecting pipe 2 15 is embedded and installed on the side of the connecting pipe 14 extending into a section of the shell 2. The bottom of the connecting pipe 14 is connected to a spray plate 16 at a section of the shell 2. The bottom of the connecting pipe 2 15 is connected to the spray plate 16 on the other side of the shell 2. A fixing frame 1 is welded inside the shell 2, and a fixing groove 12 is opened on one side of the fixing frame 1. A fixing block 13 is welded on the side of the collecting drawer 6, and the fixing block 13 is inserted into the fixing groove 12. A discharge pipe 10 is embedded and installed inside the shell 2 on one side of the water inlet pipe 11.

[0026] In this embodiment, the water inlet pipe 11 and the water outlet pipe 4 are connected to the pipe for conveying water, the air inlet pipe 7 and the air outlet pipe 5 are connected to the pipe for conveying boiler gas, cold water enters the inside of the condenser 17 from the water inlet pipe 11, and the boiler exhaust gas enters the inside of the shell 2 from the air inlet pipe 7. The high-temperature exhaust gas heats the cold water inside the condenser 17, the water inside the condenser 17 is discharged from the water outlet pipe 4, the exhaust gas inside the shell 2 is discharged from the air outlet pipe 5, the water pump 3 absorbs the water inside the water outlet pipe 4 through the suction pipe 9, and then provides the water to the connecting pipe 1 14 through the drain pipe 8, the water inside the connecting pipe 14 enters the inside of the connecting pipe 2 15, the connecting pipe 1 14 and the connecting pipe 2 15 convey the water to the inside of the two spray plates 16, the two spray plates 16 spray water on the surface of the condenser 17 and the inner wall of the shell 2, and the sewage is discharged from the discharge pipe 10 and falls into the inside of the collecting bin 6.

[0027] Embodiment 2

[0028] like Figure 1-Figure 4 As shown, the utility model proposes a condenser for utilizing boiler tail flue gas. Compared with the first embodiment, this embodiment further includes: a fixing frame 1 , and the fixing frame 1 is welded inside the shell 2 .

[0029] In this embodiment, the fixing frame 1 provides a supporting force to the housing 2 to maintain the stability of the housing 2 .

[0030] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A condenser for utilizing flue gas from the tail end of a boiler, comprising a shell (2), a collecting bin (6) and a spray plate (16), characterized in that: A condensing pipe (17) is installed inside the shell (2), a water outlet pipe (4) is embedded and installed on the top of the shell (2), a water inlet pipe (11) is embedded and installed on the bottom of the shell (2), spray plates (16) are installed on both sides of the top of the shell (2), a water pump (3) is installed on the top of the shell (2) on one side of the water outlet pipe (4), a water suction pipe (9) is installed on the side of the water pump (3) opposite to the water outlet pipe (4), the end of the water suction pipe (9) away from the water pump (3) extends into the water outlet pipe (4), a drain pipe (8) is installed on the side of the water pump (3) away from the water outlet pipe (4), a connecting pipe (14) is installed at the bottom of the drain pipe (8), the bottom of the connecting pipe (14) extends into the shell (2), a connecting pipe (15) is embedded and installed on the side of the connecting pipe (14) extending into the shell (2), and a fixing frame (1) is welded inside the shell (2).

2. The condenser for utilizing boiler tail flue gas according to claim 1, characterized in that: The water inlet pipe (11) and the water outlet pipe (4) are respectively connected to the condenser pipe (17) inside the shell (2).

3. The condenser for utilizing boiler tail flue gas according to claim 1, characterized in that: An air inlet pipe (7) is embedded and installed on one side of the shell (2), and an air outlet pipe (5) is embedded and installed on the other side of the shell (2).

4. The condenser for utilizing boiler tail flue gas according to claim 1, characterized in that: Valves are respectively installed on the water inlet pipe (11) and the water outlet pipe (4).

5. The condenser for utilizing boiler tail flue gas according to claim 1, characterized in that: The bottom of the connecting pipe 1 (14) is connected to a spray plate (16) at one section inside the shell (2), and the bottom of the connecting pipe 2 (15) is connected to the spray plate (16) at the other side inside the shell (2).

6. The condenser for utilizing boiler tail flue gas according to claim 1, characterized in that: A discharge pipe (10) is embedded and installed inside the shell (2) on one side of the water inlet pipe (11).

7. The condenser for utilizing boiler tail flue gas according to claim 1, characterized in that: A fixing groove (12) is provided on one side of the fixing frame (1), a fixing block (13) is welded on the side of the collecting bin (6), and the fixing block (13) is inserted into the fixing groove (12).

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