A flue gas condenser with condensate water treatment assembly

Abstract

The utility model belongs to flue gas condenser technical field especially points out a flue gas condenser with condensate water processing subassembly, including the main casing with the heat exchange chamber, is provided with flue gas import and flue gas export with the heat exchange chamber intercommunication on the main casing, is provided with the heat absorption pipe subassembly in the heat exchange chamber, the bottom of heat exchange chamber is provided with condensate water accumulation area, and condensate water accumulation area is communicated with the water inlet end of water pump located outside the heat exchange chamber through the pipeline, and the water outlet end of water pump is communicated with the water inlet end of condensate water atomizing nozzle through the pipeline, and the condensate water atomizing nozzle is located in the heat exchange chamber. The utility model is through the cooperation of water pump and atomizing nozzle, and the condensate water gathered in the heat exchange chamber is transported to the condensate water atomizing nozzle by water pump, and the condensate water is sprayed into the heat exchange chamber in the form of mist by the condensate water atomizing nozzle, and then the condensate water mist will be discharged from the flue gas outlet together with the high-temperature flue gas, which effectively solves the problem of condensate water accumulation and cannot be discharged.

Description

Technical fields:

[0001] This utility model belongs to the field of flue gas condenser technology, and specifically refers to a flue gas condenser with a condensate treatment component. Background technology:

[0002] As a crucial component of wall-hung boilers, the flue gas condenser delivers high-temperature flue gas into the heat exchange chamber. Heat exchange occurs between the flue gas and the heat-absorbing tube assembly within the chamber, turning cold water inside the tubes into hot water. Simultaneously, water vapor in the flue gas condenses on the outer wall of the tube assembly, forming liquid water. This condensate typically drips and accumulates at the bottom of the heat exchange chamber. Although flue gas condensers are designed with drain holes at the bottom for discharging condensate, current wall-hung boiler designs often lack corresponding drainage pipes. This results in ineffective drainage of condensate, which can corrode the internal structure, breed bacteria, and impair heat exchange efficiency, ultimately reducing the equipment's lifespan and performance. The current solution is manual cleaning by periodically opening the boiler, a cumbersome process that is unacceptable to users. Summary of the Invention:

[0003] The purpose of this invention is to provide a flue gas condenser with a condensate treatment component. Through the cooperation of a water pump and an atomizing nozzle, the accumulated condensate is re-atomized and sprayed back into the heat exchange chamber, and then discharged outward along with the high-temperature flue gas, effectively solving the problem of condensate accumulation and inability to be discharged.

[0004] This utility model is implemented as follows:

[0005] A flue gas condenser with a condensate treatment component includes a main shell with a heat exchange chamber. The main shell has a flue gas inlet and a flue gas outlet communicating with the heat exchange chamber. A heat absorption tube assembly is installed in the heat exchange chamber. A condensate collection area is provided at the bottom of the heat exchange chamber. The condensate collection area is connected to the inlet of a water pump located outside the heat exchange chamber through a pipe. The outlet of the water pump is connected to the inlet of a condensate atomizing nozzle located inside the heat exchange chamber through a pipe.

[0006] In the flue gas condenser with a condensate treatment component described above, the bottom surface of the heat exchange chamber is recessed downward to form a water storage groove, which is the condensate accumulation area. A water storage container with an inner cavity communicating with the water storage groove is provided on the outside of the heat exchange chamber, and the water inlet end of the water pump is connected to the bottom of the inner cavity of the water storage container.

[0007] In the flue gas condenser with a condensate treatment component described above, the water storage container is welded and fixed to the main shell located directly below the heat exchange chamber, and the inner cavity of the water storage container and the water storage groove of the heat exchange chamber are connected through a water passage hole opened on the main shell.

[0008] Alternatively, the water storage container and the main shell may be a separate structure, with the top of the inner cavity of the water storage container connected to the water storage groove of the heat exchange chamber via a pipe.

[0009] In the flue gas condenser with a condensate treatment component described above, a condensate treatment pipe is provided in the heat exchange chamber. The outer end of the condensate treatment pipe extends out of the main shell and is connected to the water outlet of the water pump. The inner end of the condensate treatment pipe extends to the flue gas outlet and is fitted with the condensate atomizing nozzle.

[0010] In the flue gas condenser with a condensate treatment component described above, the condensate atomizing nozzle includes a nozzle body with an atomizing channel. The inner port of the atomizing channel is connected to the outlet of a water pump. A valve stem is connected to the atomizing channel via a fixing bracket. The outer end of the valve stem extends beyond the outer port of the atomizing channel to the nozzle body. From the inside out, a plug, a compression spring, and a positioning seat are sequentially fitted. The positioning seat is axially limited and connected to the valve stem. The two ends of the compression spring abut against the plug and the positioning seat respectively. An atomizing gap is formed between the plug and the outer port of the atomizing channel, and the plug can completely seal the outer port of the atomizing channel.

[0011] In the flue gas condenser with a condensate treatment component described above, the outer port of the atomization channel has an inner conical surface structure that is smaller on the inside and larger on the outside, and the outer ring wall of the plug has an outer conical surface structure that can seal the outer port of the atomization channel.

[0012] In the flue gas condenser with a condensate treatment component described above, the cone angle of the outer conical structure of the plug is greater than the cone angle of the inner conical structure of the atomization channel.

[0013] In the flue gas condenser with a condensate treatment component described above, the condensate atomizing nozzle includes a nozzle body with an inner cavity. A valve stem moves axially within the inner cavity of the nozzle body. A separating valve diaphragm is provided between the valve stem and the inner cavity sidewall of the nozzle body. The separating valve diaphragm divides the inner cavity of the nozzle body into a hydraulic chamber and a preload chamber. The axially moving valve stem causes the inner ring of the separating valve diaphragm to undergo elastic deformation. A preload spring is provided between the preload chamber and the corresponding end of the valve stem. The nozzle body has an inlet hole connecting the hydraulic chamber and the water pump outlet, and an atomizing nozzle corresponding to the upper end of the valve stem. An atomizing gap is formed between the upper end of the valve stem and the atomizing nozzle, and the valve stem can completely block the inner port of the atomizing nozzle.

[0014] In the flue gas condenser with a condensate treatment component described above, the inner port of the atomizing nozzle has an inner conical surface that is larger inside and smaller outside, and the upper end of the valve stem has an outer conical surface that can cooperate with the inner conical surface of the atomizing nozzle.

[0015] The outstanding advantages of this utility model compared to the prior art are:

[0016] This utility model has a simple structure, reasonable design, and stable condensate discharge. Through the cooperation of a water pump and an atomizing nozzle, the water pump delivers the condensate accumulated in the heat exchange chamber to the condensate atomizing nozzle. The condensate is then sprayed into the heat exchange chamber in the form of mist through the condensate atomizing nozzle. The condensate mist is then discharged from the flue gas outlet along with the high-temperature flue gas, effectively solving the problem of condensate accumulation and inability to be discharged. Attached image description:

[0017] Figure 1 This is a three-dimensional view of the entire machine of this utility model;

[0018] Figure 2 This is a cross-sectional view of the entire machine of this utility model;

[0019] Figure 3 This is a cross-sectional view of the condensate atomizing nozzle of Embodiment 1 of this utility model;

[0020] Figure 4 This is a cross-sectional view of the condensate atomizing nozzle of Embodiment 2 of this utility model.

[0021] In the diagram: 1. Main shell; 2. Flue gas inlet; 3. Flue gas outlet; 4. Heat absorber tube assembly; 5. Condensate atomizing nozzle; 6. Water storage groove; 7. Water storage container; 8. Condensation treatment pipe; 9. Nozzle body; 10. Fixing bracket; 11. Valve stem; 12. Plug; 13. Compression spring; 14. Positioning seat; 15. Inner conical surface structure; 16. Outer conical surface structure; 17. Outer limit snap ring; 18. Inner limit snap ring; 19. Sealing ring; 20. Abutment gasket; 21. Annular cylinder; 22. Separating valve diaphragm; 23. Hydraulic chamber; 24. Preload chamber; 25. Preload spring; 26. Water inlet hole; 27. Atomizing nozzle; 28. Upper sleeve; 29. ​​Lower sleeve; 30. Connecting flared groove; 31. Annular protrusion; 32. Clamping seat; 33. Preload nut; 34. Preload nut. Detailed implementation method:

[0022] The present invention will be further described below with reference to specific embodiments. See also: Figure 1 —4:

[0023] Example 1:

[0024] A flue gas condenser with a condensate treatment component includes a main shell 1 having a heat exchange chamber. The main shell 1 has a flue gas inlet 2 and a flue gas outlet 3 communicating with the heat exchange chamber. A heat absorption tube assembly 4 is installed in the heat exchange chamber. A condensate collection area is provided at the bottom of the heat exchange chamber. The condensate collection area is connected to the inlet of a water pump located outside the heat exchange chamber through a pipe. The outlet of the water pump is connected to the inlet of a condensate atomizing nozzle 5 located inside the heat exchange chamber through a pipe.

[0025] This utility model has a simple structure, reasonable design, and stable condensate discharge. Through the cooperation of a water pump and an atomizing nozzle, the water pump transports the condensate collected in the heat exchange chamber to the condensate atomizing nozzle 5. The condensate is then sprayed into the heat exchange chamber in the form of mist through the condensate atomizing nozzle 5. The condensate mist is then discharged from the flue gas outlet 3 along with the high-temperature flue gas, effectively solving the problem of condensate accumulation and inability to be discharged.

[0026] Furthermore, in order to effectively collect condensate so that the water pump can effectively extract it, the bottom of the heat exchange chamber is recessed downward to form a water storage groove 6, which is the condensate collection area. A water storage container 7 is provided on the outside of the heat exchange chamber, and its inner cavity is connected to the water storage groove 6. The water inlet of the water pump is connected to the bottom of the inner cavity of the water storage container 7.

[0027] In this embodiment, the water storage container 7 is welded and fixed to the main shell 1 located directly below the heat exchange chamber, and the inner cavity of the water storage container 7 is connected to the water storage groove 6 of the heat exchange chamber through a water passage hole opened on the main shell 1.

[0028] Of course, considering that some wall-mounted boilers have relatively narrow installation locations and the reserved installation space is not enough to accommodate the flue gas condenser and the water storage container 7, the water storage container 7 and the main shell 1 can also be a separate structure. The top of the inner cavity of the water storage container 7 is connected to the water storage groove 6 of the heat exchange chamber through a pipe.

[0029] Furthermore, in order to ensure that the atomized condensate can be effectively discharged with the high-temperature flue gas, a condensation treatment pipe 8 is provided in the heat exchange chamber. The outer end of the condensation treatment pipe 8 extends out of the main shell 1 and is connected to the water outlet of the water pump. The inner end of the condensation treatment pipe 8 extends to the flue gas outlet 3 and is fitted with the condensate atomizing nozzle 5.

[0030] In this embodiment, the specific structure of the condensate atomizing nozzle 5 is as follows: the condensate atomizing nozzle 5 includes a nozzle body 9 with an atomizing channel. The inner port of the atomizing channel is connected to the outlet of the water pump. A valve stem 11 is connected to the atomizing channel through a fixing bracket 10. The outer end of the valve stem 11 extends out of the outer port of the atomizing channel to the nozzle body 9. From the inside to the outside, a plug 12, a compression spring 13, and a positioning seat 14 are sequentially installed. The positioning seat 14 is axially limited and connected to the valve stem 11. The two ends of the compression spring 13 abut against the plug 12 and the positioning seat 14 respectively. An atomizing gap is formed between the plug 12 and the outer port of the atomizing channel, and the plug 12 can completely seal the outer port of the atomizing channel.

[0031] That is, the elastic force of the compression spring 13 pushes the plug 12 to completely block the atomization channel. The hydraulic pressure in the atomization channel pushes the plug 12 outward, so that a small atomization gap is formed between the plug 12 and the atomization channel. It can automatically adjust the size of the atomization gap according to the change of hydraulic pressure. That is, when particulate matter blocks the atomization gap, the hydraulic pressure in the atomization channel will increase and push the plug 12 outward, so that the atomization gap will increase, thereby effectively solving the problem of atomization failure due to blockage.

[0032] Furthermore, to increase the contact area between the plug 12 and the atomizing channel, the outer port of the atomizing channel has an inner conical structure 15 that is smaller on the inside and larger on the outside, and the outer ring wall of the plug 12 has an outer conical structure 16 that can seal the outer port of the atomizing channel. Simultaneously, the cone angle of the outer conical structure 16 of the plug 12 is greater than the cone angle of the inner conical structure 15 of the atomizing channel, meaning the diameter of the atomizing channel gradually decreases from the inside to the outside.

[0033] Meanwhile, the axial positioning structure between the positioning seat 14 and the valve stem 11 can be as follows: the positioning seat 14 is threadedly connected to the valve stem 11; and in this embodiment, an outer limiting spring 17 is provided on the valve stem 11 located outside the positioning seat 14 to restrict the axial outward movement of the positioning seat 14. Correspondingly, the specific connection structure of the valve stem 11 on the fixing frame 10 is as follows: an inner limiting spring 18 is provided on the valve stem 11 located inside the fixing frame 10 to restrict the axial outward movement of the valve stem 11. That is, the outer limiting spring 17 and the inner limiting spring 18 form an axial positioning of the valve stem 11 on the fixing frame 10.

[0034] To prevent leakage of liquid in the atomizing channel from the fitting gap between the plug 12 and the valve stem 11 when the plug 12 moves axially inward and outward along the valve stem 11, the inner hole of the plug 12 is a stepped hole, and from the outside to the inside, it includes a large diameter part, a medium diameter part, and a small diameter part that slides on the valve stem 11. A sealing ring 19 is provided between the valve stem 11 and the medium diameter part, and a positioning step surface is formed between the large diameter part and the medium diameter part. The corresponding end of the compression spring 13 extends into the large diameter part and abuts against the positioning step surface through the abutment gasket 20, and the abutment gasket 20 can axially limit the sealing ring 19.

[0035] In addition, the inner end face of the positioning seat 14 extends inward along its axial direction to form an annular cylinder 21, and the corresponding end of the compression spring 13 is sleeved on the annular cylinder 21.

[0036] Example 2:

[0037] This embodiment is basically the same as the structure of the first embodiment above. The main difference is that the condensate atomizing nozzle 5 includes a nozzle body 9 with an inner cavity. A valve stem 11 moves axially within the inner cavity of the nozzle body 9. A separating valve membrane 22 is provided between the valve stem 11 and the inner cavity sidewall of the nozzle body 9. The separating valve membrane 22 divides the inner cavity of the nozzle body 9 into a hydraulic cavity 23 and a preload cavity 24. The axially moving valve stem 11 drives the inner ring of the separating valve membrane 22 to undergo elastic deformation. A preload spring 25 is provided between the preload cavity 24 and the corresponding end of the valve stem 11. The nozzle body 9 has an inlet hole 26 that connects the hydraulic cavity 23 and the water pump outlet, and an atomizing nozzle 27 that is opposite to the upper end of the valve stem 11. An atomizing gap is formed between the upper end of the valve stem 11 and the atomizing nozzle 27, and the valve stem 11 can completely block the inner port of the atomizing nozzle 27.

[0038] The valve stem 11 is pushed upward by the elastic force of the preloaded spring 25 to completely block the atomizing nozzle 27. The hydraulic pressure in the hydraulic chamber 23 pushes the separator diaphragm 22, which in turn moves the valve stem 11 downward. This creates a small atomizing gap between the upper end of the valve stem 11 and the atomizing channel. The valve stem 11 can automatically adjust the size of the atomizing gap according to the change in hydraulic pressure. When particulate matter blocks the atomizing gap, the hydraulic pressure in the hydraulic chamber 23 increases and moves the valve stem 11 downward through the separator diaphragm 22, thus increasing the atomizing gap and effectively solving the problem of atomization failure due to blockage.

[0039] Furthermore, in order to increase the contact area between the valve stem 11 and the atomizing nozzle 27, the inner port of the atomizing nozzle 27 has an inner conical surface that is larger inside and smaller outside, and the upper end of the valve stem 11 has an outer conical surface that can cooperate with the inner conical surface of the atomizing nozzle 27.

[0040] In this embodiment, the specific structure of the nozzle body 9 and the specific fixing structure of the separator diaphragm 22 in the inner cavity of the nozzle body 9 are as follows: The nozzle body 9 includes an upper sleeve 28 with a lower port and a lower sleeve 29 with an upper port. The lower port of the upper sleeve 28 and the upper port of the lower sleeve 29 are connected and fixed vertically. The outer ring of the separator diaphragm 22 is clamped and fixed between the lower end face of the upper sleeve 28 and the upper end face of the lower sleeve 29. The inner ring of the separator diaphragm 22 is sleeved on the valve stem 11.

[0041] The upper sleeve 28 and the lower sleeve 29 can be fixed by a plunger or by a snap-fit. In this embodiment, the lower end of the upper sleeve 28 is provided with a connecting flared groove 30, and the upper end of the lower sleeve 29 is threaded to the connecting flared groove 30. A clamping gap is formed between the upper end face of the lower sleeve 29 and the bottom surface of the connecting flared groove 30 for clamping the outer ring of the separator valve diaphragm 22.

[0042] In order to ensure that the separator diaphragm 22 can be securely connected to the valve stem 11, an annular protrusion 31 is provided on the outer wall of the valve stem 11. A clamping seat 32 and a pre-tightening nut 33 are sleeved on the valve stem 11 above the annular protrusion 31. A clamping gap is formed between the clamping seat 32 and the annular protrusion 31 for clamping the inner ring of the separator diaphragm 22. The pre-tightening nut 33 is threadedly connected to the valve stem 11, and the pre-tightening nut 33 is screwed downward to push the clamping seat 32 down to press on the inner ring of the separator diaphragm 22.

[0043] Furthermore, the upper end of the preload spring 25 abuts against the lower end face of the annular protrusion 31, and the lower end abuts against the preload nut 34, which is threadedly connected to the preload cavity 24.

[0044] The above embodiments are only one of the preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes made in accordance with the shape, structure and principle of this utility model should be covered within the protection scope of this utility model.

Claims

1. A flue gas condenser with a condensate treatment component, comprising a main shell (1) having a heat exchange chamber, wherein the main shell (1) has a flue gas inlet (2) and a flue gas outlet (3) communicating with the heat exchange chamber, and a heat absorption tube assembly (4) is provided in the heat exchange chamber, characterized in that: The bottom of the heat exchange chamber is provided with a condensate collection area, which is connected to the inlet of a water pump located outside the heat exchange chamber via a pipe. The outlet of the water pump is connected to the inlet of a condensate atomizing nozzle (5) via a pipe, which is located inside the heat exchange chamber.

2. A flue gas condenser with a condensate treatment component according to claim 1, characterized in that: The bottom of the heat exchange chamber is recessed downward to form a water storage groove (6), which is the condensate accumulation area. A water storage container (7) with an inner cavity connected to the water storage groove (6) is provided on the outside of the heat exchange chamber. The water inlet of the water pump is connected to the bottom of the inner cavity of the water storage container (7).

3. A flue gas condenser with a condensate treatment component according to claim 2, characterized in that: The water storage container (7) is welded and fixed to the main shell (1) located directly below the heat exchange chamber. The inner cavity of the water storage container (7) is connected to the water storage groove (6) of the heat exchange chamber through a water passage hole opened on the main shell (1). Alternatively, the water storage container (7) and the main shell (1) may be a separate structure, with the top of the inner cavity of the water storage container (7) connected to the water storage groove (6) of the heat exchange chamber through a pipe.

4. A flue gas condenser with a condensate treatment component according to claim 1, characterized in that: The heat exchange chamber is provided with a condensation treatment pipe (8). The outer end of the condensation treatment pipe (8) extends out of the main shell (1) and is connected to the water outlet of the water pump. The inner end of the condensation treatment pipe (8) extends to the flue gas outlet (3) and is fitted with the condensate atomizing nozzle (5).

5. A flue gas condenser with a condensate treatment component according to claim 1 or 4, characterized in that: The condensate atomizing nozzle (5) includes a nozzle body (9) with an atomizing channel. The inner port of the atomizing channel is connected to the outlet of the water pump. A valve stem (11) is connected to the atomizing channel through a fixing bracket (10). The outer end of the valve stem (11) extends out of the outer port of the atomizing channel to the nozzle body (9) and is fitted with a plug (12), a compression spring (13), and a positioning seat (14) from the inside to the outside. The positioning seat (14) is axially limited and connected to the valve stem (11). The two ends of the compression spring (13) abut against the plug (12) and the positioning seat (14) respectively. An atomizing gap is formed between the plug (12) and the outer port of the atomizing channel, and the plug (12) can completely block the outer port of the atomizing channel.

6. A flue gas condenser with a condensate treatment component according to claim 5, characterized in that: The outer port of the atomizing channel has an inner conical surface structure (15) that is smaller inside and larger outside, and the outer ring wall of the plug (12) has an outer conical surface structure (16) that can seal the outer port of the atomizing channel.

7. A flue gas condenser with a condensate treatment component according to claim 6, characterized in that: The cone angle of the outer cone structure (16) of the plug (12) is greater than the cone angle of the inner cone structure (15) of the atomizing channel.

8. A flue gas condenser with a condensate treatment component according to claim 1 or 4, characterized in that: The condensate atomizing nozzle (5) includes a nozzle body (9) with an inner cavity. A valve stem (11) moves axially within the inner cavity of the nozzle body (9). A separating valve diaphragm (22) is provided between the valve stem (11) and the inner cavity sidewall of the nozzle body (9). The separating valve diaphragm (22) divides the inner cavity of the nozzle body (9) into a hydraulic cavity (23) and a preload cavity (24). The axially moving valve stem (11) drives the inner ring of the separating valve diaphragm (22). The preload spring (25) is provided between the preload chamber (24) and the corresponding end of the valve stem (11) to perform elastic deformation. The nozzle body (9) is provided with a water inlet hole (26) that connects the hydraulic chamber (23) and the water pump outlet, and an atomizing nozzle (27) that is opposite to the upper end of the valve stem (11). An atomizing gap is formed between the upper end of the valve stem (11) and the atomizing nozzle (27), and the valve stem (11) can completely block the inner port of the atomizing nozzle (27).

9. A flue gas condenser with a condensate treatment component according to claim 8, characterized in that: The inner port of the atomizing nozzle (27) has an inner conical surface that is larger inside and smaller outside, and the upper end of the valve stem (11) has an outer conical surface that can cooperate with the inner conical surface of the atomizing nozzle (27).

Images