Condensation type steam boiler energy-saving steam water recovery equipment

Abstract

The utility model discloses energy-saving steam-water recovery equipment of a condensation type steam boiler. The energy-saving steam-water recovery equipment comprises a condensation type steam boiler main body and a steam-water recovery mechanism, by adopting the flow blocking disc, the partition plate, the cooling ring and the cooling disc, when the boiler is used, steam flow which is not fully condensed and generated by the boiler can enter the steam water recycling mechanism through a pipeline to recycle heat; at the moment, steam flow entering the mechanism sequentially passes through the cooling ring, the flow blocking discs and the cooling disc and enters the other sides of the partition plates, the partition plates are arranged in an up-and-down staggered mode, the steam flow retention time can be prolonged, and the steam flow retention time can be further prolonged through circulation holes formed in the multiple groups of flow blocking discs in a staggered mode; meanwhile, atomized liquid media can be sprayed out of the cooling ring, the cooling disc and the flow blocking disc and flow, when steam flow makes contact with the liquid media, the liquid media can be condensed, then heat recovery operation is achieved, and the advantages of being good in recovery effect, capable of achieving multi-stage recovery and long in retention time are achieved.

Description

Technical Field

[0001] This utility model relates to the field of boiler technology, and more specifically, to an energy-saving steam and water recovery device for condensing steam boilers. Background Technology

[0002] A condensing boiler is a type of boiler that condenses water vapor in flue gas into water, recovers its latent heat of vaporization, and reuses it in the boiler, theoretically achieving 100% thermal efficiency. Traditional boilers have high flue gas temperatures, causing the water vapor in the flue gas to be in a superheated state and unable to release its latent heat of vaporization. Condensing boilers, however, lower the flue gas temperature, allowing the superheated water vapor to condense into water, releasing its latent heat of vaporization, and then reuse this heat in the boiler.

[0003] The existing publicly available technology, application number CN201720600985.0, discloses a steam boiler steam-water heat energy recovery system, comprising a refrigerant buffer zone, a heat energy recovery and exchange zone, and a heat energy utilization buffer zone. The refrigerant buffer zone is connected to a deaeration makeup water pipeline, and the refrigerant buffer zone is also connected to a pump and valve mechanism, through which three branch pipelines branch out: a convection jet mixing pipeline, a first convection atomizing pipeline, and a second convection atomizing pipeline. The heat energy recovery and exchange zone is connected to a condensate recovery water pipeline and the aforementioned convection jet mixing pipeline, with the outlet of the condensate recovery water pipeline and the outlet of the convection jet mixing pipeline positioned opposite each other. The heat energy recovery and exchange zone is connected to the heat energy utilization buffer zone, with an exhaust pipe connected to the atmosphere at the top and a recovery pipe for connecting heat energy equipment at the bottom of the heat energy utilization buffer zone.

[0004] However, the above-mentioned patent still has certain drawbacks in use: the first convection atomizing pipe at the gap of the partition is awkwardly positioned, which cannot fully cover the rising steam flow and is easily blocked by condensate, resulting in poor heat recovery effect. In addition, the internal structure is simple, the hot steam is retained for a short time and discharged quickly, which means that the hot steam cannot be fully processed, thereby reducing the quality of steam and water recovery. The overall use effect is not ideal.

[0005] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this utility model provides an energy-saving steam and water recovery device for condensing steam boilers, which has the advantages of good recovery effect, multi-stage recovery, and long retention time, thereby solving the problems mentioned in the background technology.

[0008] (II) Technical Solution

[0009] To achieve the advantages of good recycling effect, multi-stage recycling, and long retention time, the specific technical solution adopted by this utility model is as follows:

[0010] An energy-saving steam and water recovery device for a condensing steam boiler includes a condensing steam boiler body and a steam and water recovery mechanism. The steam and water recovery mechanism is located on one side of the condensing steam boiler body. Several sets of baffles are staggered on both ends of the internal surface of the steam and water recovery mechanism. Several sets of cooling rings are installed between each pair of baffles and between the baffles and the surface of the steam and water recovery mechanism. A flow-blocking plate is fixedly installed above the cooling rings on the surface of the baffles. Several sets of cooling plates are installed above the flow-blocking plates at the top of the steam and water recovery mechanism. Several sets of first atomizing nozzles are arranged around the internal surface of the cooling rings. Several sets of second atomizing nozzles are evenly arranged around the bottom surface of the cooling plates. Several sets of flow holes are formed on the surface of the flow-blocking plates, with the flow holes staggered between each pair of flow-blocking plates. A slot is formed inside the flow-blocking plate on one side of the flow hole, and a pipe is installed inside the slot. The slots inside the multiple sets of flow-blocking plates have a serpentine structure, and the pipes are serpentine tubes.

[0011] Furthermore, a through hole is provided at the bottom of the surface of the partition.

[0012] Furthermore, an exhaust pipe is installed on the main body of the condensing steam boiler. One end of the exhaust pipe is connected to a gas supply pipe, and the other end of the gas supply pipe is connected to an air inlet pipe. The air inlet pipe is located in the middle of the surface of the steam-water recovery mechanism.

[0013] Furthermore, the main body surface of the condensing steam boiler is equipped with a water inlet pipe, and the top of the water inlet pipe is provided with a tee pipe, which is connected to the water supply pipe and the return pipe respectively.

[0014] Furthermore, the return pipe is located at the bottom of one side surface of the steam and water recovery mechanism, and a gas discharge pipe is provided above the return pipe at the surface of the steam and water recovery mechanism.

[0015] Furthermore, the top of the steam and water recovery mechanism is equipped with several sets of water pumps. One end of each water pump is connected to the deoxygenated water supply, and the other end is connected to the baffle plate, the cooling ring, and the cooling plate, respectively.

[0016] Furthermore, one end of the serpentine tube inside the flow-blocking plate is connected to the water pump outlet, and the other end is connected to the deoxygenated water supply.

[0017] Furthermore, the soda recycling mechanism has a cylindrical structure.

[0018] (III) Beneficial Effects

[0019] Compared with the prior art, this utility model provides an energy-saving steam-water recovery device for condensing steam boilers, which has the following beneficial effects:

[0020] This invention employs a flow-blocking plate, baffles, cooling rings, and cooling plates. During boiler operation, the uncondensed steam flows through pipes into the steam-water recovery mechanism for heat recovery. The steam then passes sequentially through the cooling ring, flow-blocking plate, and cooling plates before entering the other side of the baffles. Since both sides have identical structures, the steam can be condensed again. The staggered arrangement of the baffles restricts steam flow, extending its residence time. Furthermore, the staggered flow holes on multiple flow-blocking plates further extend the residence time, allowing ample time for condensation. Simultaneously, the cooling ring, cooling plates, and flow-blocking plates can spray atomized liquid media, which condenses upon contact with the steam, thus achieving heat recovery and facilitating subsequent use. The condensed water, still warm, can be reintroduced into the boiler, reducing preheating energy consumption and improving overall energy efficiency. This design offers advantages such as good recovery efficiency, multi-stage recovery, and long residence time. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments 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.

[0022] Figure 1 This is a schematic diagram of the structure of an energy-saving steam-water recovery device for a condensing steam boiler proposed in this utility model;

[0023] Figure 2 This is a schematic diagram of the cooling ring structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the cooling plate of this utility model;

[0025] Figure 4 This is a schematic diagram of the internal partial structure of the flow-blocking disc of this utility model.

[0026] In the picture:

[0027] 1. Condensing steam boiler body; 2. Return pipe; 3. Steam and water recovery mechanism; 4. Through hole; 5. Baffle plate; 6. Air inlet pipe; 7. Air supply pipe; 8. First atomizing nozzle; 9. Flow hole; 10. Cooling ring; 11. Baffle plate; 12. Water pump; 13. Second atomizing nozzle; 14. Cooling plate; 15. Exhaust pipe; 16. Water inlet pipe; 17. Water supply pipe. Detailed Implementation

[0028] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0029] According to an embodiment of this utility model, an energy-saving steam-water recovery device for condensing steam boilers is provided.

[0030] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-4As shown, an energy-saving steam and water recovery device for a condensing steam boiler according to an embodiment of the present invention includes a condensing steam boiler body 1 and a steam and water recovery mechanism 3. The steam and water recovery mechanism 3 is provided on one side of the condensing steam boiler body 1. Several sets of baffles 5 are alternately installed on the surfaces of both ends of the steam and water recovery mechanism 3. Several sets of cooling rings 10 are installed between each pair of baffles 5 and between the baffles 5 and the surface of the steam and water recovery mechanism 3. A flow-blocking plate 11 is fixedly installed above the cooling rings 10 on the surface of the baffles 5. Several sets of cooling plates 14 are installed above the flow-blocking plates 11 at the top of the steam and water recovery mechanism 3. Several sets of first atomizing nozzles 8 are installed around the inner surface of the cooling rings 10. 4. Several sets of second atomizing nozzles 13 are evenly installed around the bottom surface. Several sets of flow holes 9 are opened on the surface of the flow-blocking plate 11. The flow holes 9 on the surface of each pair of flow-blocking plates 11 are staggered. A groove is opened on one side of the flow hole 9 inside the flow-blocking plate 11, and a pipe is installed inside the groove. The grooves inside multiple sets of flow-blocking plates 11 have a serpentine structure, and the pipes are serpentine tubes. The condensing steam boiler body 1 and the steam-water recovery mechanism 3: the two realize the transmission of steam flow through pipes (such as exhaust pipe 15, steam supply pipe 7, and steam inlet pipe 6, which are installed in parallel). The steam-water recovery mechanism 3 is located on one side of the boiler body and is fixedly connected to the pipe interface by flange or welding. The partition plate 5 and the steam-water recovery mechanism 3 The baffles 5 are staggered (upper and lower layers are staggered) and fixed to both ends of the inner wall of the steam-water recovery mechanism 3 by welding or bolting, forming a zigzag steam flow channel. The spacing between adjacent baffles 5 is designed according to the steam flow rate to ensure sufficient residence time for the steam flow. Cooling ring 10 and baffles 5, steam-water recovery mechanism 3: The cooling ring 10 is a ring structure and is fixed between adjacent baffles 5 and between baffles 5 and the inner wall of the steam-water recovery mechanism 3 by brackets. It is located above or below the baffles 5 (depending on the steam flow direction) and is installed perpendicular to the baffles 5, with the center of the ring aligned with the steam flow path. Baffle plate 11 and baffles 5: The baffle plate 11 is fixed to the surface of the baffle 5 (near the upstream side of the steam flow) by bolts or welding. The plate surface is flush with the baffle. 5. Parallel, covering most of the area of ​​partition 5, allowing steam flow through only through flow holes 9; Cooling plate 14 and steam-water recovery mechanism 3: Cooling plate 14 is fixed to the top of the steam-water recovery mechanism 3 by a suspension bracket, located directly above the flow-blocking plate 11, with the plate surface horizontal and perpendicular to the steam flow outlet direction; First atomizing nozzle 8 and cooling ring 10: First atomizing nozzle 8 is uniformly welded or threaded around the inner ring surface of cooling ring 10, with the nozzle facing the direction of steam flow (e.g., vertically downward or inclined downward), and connected to water pump 12 through a pipe; Second atomizing nozzle 13 and cooling plate 14: Second atomizing nozzle 13 is uniformly installed around the bottom surface of cooling plate 14, with the nozzle vertically downward, and connected to water pump 12 through a pipe;The internal serpentine tube of the flow-blocking plate 11: The serpentine tube is embedded in the groove inside the flow-blocking plate 11, and its two ends are connected to the water pump 12 and the deoxygenated water supply system respectively through pipes. The water passage cross section of the pipe is adapted to the groove. The serpentine bend path increases the residence time of the cooling medium (deoxygenated water supply) in the flow-blocking plate 11. Steam flow path design: After the steam flows from the air inlet pipe 6 into the steam-water recovery mechanism 3, it is forced to flow along a zigzag path due to the staggered obstruction of the baffles 5: first, it passes upward through one side of the cooling ring 10 → through the flow hole 9 of the flow-blocking plate 11 → hits the cooling plate 14 → turns back downward through the other side of the cooling ring 10 → through the flow-blocking plate 11 of the next layer of baffles 5 → repeats the above process. This path passes through the baffles 5 and the flow-blocking plate 11. The physical obstruction and flow-limiting effect of the flow-through holes 9 transform the straight flow into a multi-stage zigzag flow, significantly extending the residence time of the steam flow within the mechanism. Multi-stage condensation mechanism: First-stage condensation (cooling ring 10): When the steam flow first contacts the cooling ring 10, the atomized deaerator water (at a lower temperature) sprayed from the first atomizing nozzle 8 directly exchanges heat with the high-temperature steam. The steam liquefies upon cooling, releasing latent heat which is absorbed by the water, achieving initial condensation. Second-stage condensation (flow-blocking plate 11): When the incompletely condensed steam flow passes through the flow-through holes 9 of the flow-blocking plate 11, the staggered arrangement of the flow-through holes 9 (the holes in the upper and lower flow-blocking plates 11 are staggered) forces the steam flow to change direction (e.g., a left-right-left serpentine flow), extending its residence time within the flow-blocking plate 11. 1. Surface contact time; simultaneously, the low-temperature deoxygenated water flowing in the serpentine tube inside the baffle plate 11 conducts cold energy through the metal plate surface, causing the steam flow to further condense upon contact with the plate surface (wall condensation); 3. Three-stage condensation (cooling plate 14): When the steam flow reaches the top of the mechanism, the second atomizing nozzle 13 of the cooling plate 14 sprays atomized water downwards, forming a "water curtain." When the steam flow passes through the water curtain, it mixes thoroughly with the atomized droplets, achieving a third condensation. The condensed water droplets drip along the edge of the cooling plate 14, contacting the rising steam flow in the opposite direction, forming a "spraying" secondary condensation effect; Functional and technical effects: Extended retention time: Through the staggered design of the baffles 5, the staggered flow holes 9, and the serpentine path, the steam... The actual flow path length is 2-3 times longer than the height of the mechanism, and the residence time is extended compared to traditional equipment, ensuring sufficient heat transfer; enhanced heat exchange efficiency: the atomizing nozzle atomizes water into micron-sized droplets, greatly improving the contact efficiency between steam and liquid; the serpentine tube of the flow-blocking plate 11 and the piping system of the cooling ring 10 and cooling plate 14 form a "three-dimensional cooling network," simultaneously exchanging heat from the top, bottom, left, and right directions of the steam flow, achieving three-dimensional condensation; multi-stage recovery effect: through three-stage condensation, the heat in the steam is recovered in stages: the first condensation recovers most of the sensible heat, the second condensation recovers some of the latent heat, and the third condensation further recovers the remaining latent heat, improving the overall heat recovery efficiency compared to traditional single-stage condensation.

[0031] In one embodiment, a through hole 4 is provided at the bottom of the surface of the partition 5. The through hole 4 is coordinated with the flow of condensate: the through hole 4 is located below the partition 5. When the condensate generated by the cooling ring 10 and the baffle plate 11 accumulates on the partition 5, it can drip down through the through hole 4 and enter the water collection chamber at the bottom of the steam-water recovery mechanism 3, thus preventing water accumulation from blocking the steam flow channel. Function and technical effect: guiding condensate: preventing condensate from accumulating on the partition 5 to form a water film and hindering the steam flow; preventing nozzle blockage: the first atomizing nozzle 8 of the cooling ring 10 is located above the partition 5. If water accumulates on the partition 5, it may backflow into the nozzle pipe. The through hole 4 ensures that the accumulated water is discharged in time, protecting the nozzle from clogging.

[0032] In one embodiment, an exhaust pipe 15 is installed on the main body 1 of the condensing steam boiler. One end of the exhaust pipe 15 is connected to a steam supply pipe 7, and the other end of the steam supply pipe 7 is connected to an inlet pipe 6. The inlet pipe 6 is located in the middle of the surface of the steam-water recovery mechanism 3. The exhaust pipe 15 is welded or flanged to the boiler body and is located at the steam outlet at the top of the boiler body. The pipe diameter is designed according to the rated steam flow of the boiler, and the pipe is inclined upward to prevent condensate backflow. The steam supply pipe 7 is connected to the exhaust pipe 15 and the inlet pipe 6 through a tee or elbow to form a "boiler → exhaust pipe 15 → steam supply pipe 7 → inlet pipe 6 → steam-water recovery mechanism 3" configuration. The steam flow channel has an inlet pipe 6 inserted into the center of the surface of the steam-water recovery mechanism 3, with the pipe opening facing the bottom of the mechanism (e.g., at a 45° downward angle). This allows the steam flow to first impact the bottom of the mechanism and then diffuse upwards, avoiding direct impact on the top cooling plate 14 which would cause the atomized water to be blown away. Functional and technical effects: Uniform air distribution: The inlet pipe 6 is located in the center, allowing the steam flow to diffuse in an axially symmetrical manner, avoiding uneven flow that would lead to insufficient condensation in certain areas. Prevention of water hammer: The inclined design of the piping system and the matching pipe diameter ensure that the condensate in the steam flow is discharged in time, avoiding the formation of a "water block" due to water accumulation in the pipe, which would cause water hammer.

[0033] In one embodiment, a water inlet pipe 16 is installed on the surface of the condensing steam boiler body 1. A tee pipe is provided at the top of the water inlet pipe 16. The tee pipe is connected to the water supply pipe 17 and the return pipe 2 respectively. The water inlet pipe 16 is connected to the boiler body as the boiler's water inlet. The pipe diameter is designed according to the boiler's water supply volume. A one-way valve and a flow meter are installed on the pipe to ensure safe and controllable water supply. The tee pipe splits the water supply pipe 16 into two paths: the water supply pipe 17 directly supplies deaerated water to the boiler body to maintain the boiler water level; the return pipe 2 connects to the bottom water collection chamber of the steam-water recovery mechanism 3 to transport the condensate (carrying recovered heat) back to the boiler, reducing the boiler's preheating energy consumption for new water supply.

[0034] In one embodiment, the return pipe 2 is located at the bottom of one side surface of the steam-water recovery mechanism 3. Above the return pipe 2, on the surface of the steam-water recovery mechanism 3, there is a gas discharge pipe. The pipe diameter is small (e.g., DN15-DN25) on the surface of the steam-water recovery mechanism 3 above the return pipe 2. A check valve is installed at the outlet to discharge non-condensable gases (e.g., air, trace amounts of CO2) that have not condensed in the steam flow, so as to prevent gas from accumulating in the mechanism and forming gas resistance, which would affect the normal flow of steam.

[0035] In one embodiment, the top of the steam-water recovery mechanism 3 is equipped with several sets of water pumps 12. One end of each water pump 12 is connected to the deoxygenated water supply, and the other end is connected to the baffle plate 11, the cooling ring 10, and the cooling plate 14, respectively. The water pump 12 is connected as follows: On the input side, it is connected to an external deoxygenated water supply tank through a pipeline. A filter is installed on the pipeline to prevent impurities from clogging the nozzles and the serpentine tubes. On the output side, it is connected to the serpentine tubes of the cooling ring 10, the cooling plate 14, and the baffle plate 11 through three pipelines. Each pipeline is equipped with a flow regulating valve, which can adjust the cooling water volume of each component according to the steam load (e.g., increase the water spray volume of the cooling plate 14 under high load, and reduce the flow of the cooling ring 10 under low load).

[0036] In one embodiment, one end of the serpentine tube inside the baffle plate 11 is connected to the outlet of the water pump 12, and the other end is connected to the deoxygenated makeup water. The deoxygenated makeup water is pumped into the serpentine tube from the water pump 12 and flows along the serpentine path within the baffle plate 11, absorbing the heat conducted from the steam flow by the baffle plate 11. After the water temperature rises, it flows back to the deoxygenated makeup water system, achieving indirect heat exchange from "liquid cooling medium → baffle plate 11 → steam flow". The serpentine structure increases the water flow path length and improves the heat exchange area compared to a straight pipe, thus enhancing cooling efficiency. However, it improves efficiency; technical effects: cooling medium is supplied on demand: water pump 12 automatically adjusts the output pressure and flow rate according to the boiler operating parameters (such as steam temperature and flow rate) (can be equipped with a frequency converter), avoiding the waste of "overcooling" in traditional fixed flow systems at low loads; condensate heat recovery: the heated deaerated feedwater enters the boiler through the return pipe 2, reducing the boiler's heating energy consumption for feedwater (for example, if the condensate temperature is 80℃, while the boiler feedwater temperature requirement is 70℃, it can be directly recovered without additional heating).

[0037] In one embodiment, the steam-water recovery mechanism 3 is a cylindrical structure with a smooth inner wall, facilitating the uniform arrangement of components such as the baffles 5 and cooling rings 10 along the circumference to form an axisymmetric flow field. Flanges are provided at both ends of the cylinder for easy inspection and maintenance of internal components. Functional and technical effects include: Flow field uniformity: The cylindrical structure ensures uniform distribution of steam flow radially (circumferentially), avoiding the "dead zones" of square structures (dead zones cause some steam to be discharged directly without sufficient condensation); Strong pressure resistance: The cylindrical structure has better bending and internal pressure resistance than the square structure, and can withstand slight positive pressure (e.g., 0.05 MPa) that may be generated during steam-water recovery, ensuring system safety; High space utilization: The connection points between the cylindrical inner wall and components such as the baffles 5 and cooling rings 10 are subjected to uniform force, allowing for the installation of more stages of baffles 5 within a limited space (e.g., a traditional square mechanism can install 3 stages of baffles 5, while the cylindrical structure can install 5 stages), further enhancing the multi-stage condensation effect.

[0038] Working Principle: In actual use, the insufficiently condensed steam generated during the operation of the condensing steam boiler enters the steam supply pipe 7 through the exhaust pipe 15, and then enters the steam-water recovery mechanism 3 along the steam supply pipe 7. Because the high-temperature steam naturally rises, it passes through multiple cooling rings 10 and baffle plates 11 in sequence, and enters the other side of the baffle plate 5, continuing to pass through the cooling rings 10 and baffle plates 11. This repeated structural design effectively extends the residence time of the steam flow and the amount of medium it contacts, thus better transferring its heat outwards, achieving sufficient condensation of the steam flow. The condensed water, containing heat, is then reintroduced into the boiler body through the return pipe 2. For subsequent use or integration into external heating structures for convenient heating, the steam flow first passes through the cooling ring 10 as it rises. The cooling ring 10 is internally surrounded by multiple sets of first atomizing nozzles 8. These nozzles atomize and spray the deoxygenated makeup water pumped in by the water pump 12. The atomized liquid then contacts the steam flow, cooling it and causing some condensation. The condensed water flows through the through-hole 4 at the bottom of the baffle 5 for easy discharge. The steam flow continues to rise, where it is blocked by the flow-blocking plate 11, forcing it to exit only through the flow holes 9 on its surface. This prolongs the steam flow's residence time, allowing it to be used more effectively. Prolonged contact with the atomized liquid improves the overall condensation quality. The staggered arrangement of the flow holes 9 on the surfaces of multiple flow-blocking plates 11 further obstructs the steam flow, extending its residence time. Furthermore, multiple staggered baffles 5 inside the device prevent unidirectional steam flow from causing rapid discharge, further extending its residence time. This allows the steam flow sufficient time to contact the deoxygenated water, facilitating heat transfer and condensation. After passing through the flow-blocking plates 11, the steam flows into contact with the atomized deoxygenated water sprayed from the second atomizing nozzle 13 on the top cooling plate 14, achieving secondary condensation. The resulting condensate naturally drips downwards, eventually settling into the... The steam flows down through the flow holes 9 on the baffle plate 11, forcing it to come into contact with the condensate for further condensation. The baffle plate 11 is also equipped with a serpentine pipe through which deoxygenated makeup water can be added. This deoxygenated makeup water cools the baffle plate 11, allowing the steam to be directly condensed upon contact and passage, thus improving overall treatment quality. The device, through multiple structural designs, effectively extends the steam's residence time and expands its contact with the condensing medium, facilitating better recovery and improving overall recovery quality. The device boasts advantages such as good recovery effect, multi-stage recovery, and long residence time.

[0039] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An energy-saving steam and water recovery device for a condensing steam boiler, comprising a condensing steam boiler body (1) and a steam and water recovery mechanism (3), characterized in that, The condensing steam boiler body (1) has a steam-water recovery mechanism (3) on one side. Several sets of baffles (5) are staggered at both ends of the steam-water recovery mechanism (3). Several sets of cooling rings (10) are installed between each pair of baffles (5) and between the baffles (5) and the surface of the steam-water recovery mechanism (3). A flow-blocking plate (11) is fixedly installed above the cooling rings (10) on the surface of the baffles (5). Several sets of cooling plates (14) are installed above the flow-blocking plates (11) at the top of the steam-water recovery mechanism (3). Several sets of first atomizing nozzles (8) are installed around the inner surface of the cooling ring (10). Several sets of second atomizing nozzles (13) are evenly installed around the bottom surface of the cooling plate (14). Several sets of flow holes (9) are opened on the surface of the flow blocking plate (11). The flow holes (9) on the surface of the flow blocking plate (11) are staggered. A slot is opened on one side of the flow hole (9) inside the flow blocking plate (11), and a pipe is installed inside the slot. The slots inside the multiple sets of the flow blocking plates (11) are serpentine structures, and the pipes are serpentine tubes.

2. The energy-saving steam-water recovery equipment for a condensing steam boiler according to claim 1, characterized in that, A through hole (4) is provided at the bottom of the surface of the partition (5).

3. The energy-saving steam-water recovery equipment for a condensing steam boiler according to claim 1, characterized in that, The condensing steam boiler body (1) is equipped with an exhaust pipe (15), one end of which is connected to a gas supply pipe (7), and the other end of which is connected to an air inlet pipe (6). The air inlet pipe (6) is located in the middle of the surface of the steam and water recovery mechanism (3).

4. The energy-saving steam-water recovery equipment for a condensing steam boiler according to claim 1, characterized in that, The main body (1) of the condensing steam boiler is equipped with a water inlet pipe (16), and a three-way pipe is provided at the top of the water inlet pipe (16). The three-way pipe is connected to the water supply pipe (17) and the return pipe (2) respectively.

5. The energy-saving steam-water recovery equipment for a condensing steam boiler according to claim 4, characterized in that, The return pipe (2) is located at the bottom of one side of the steam and water recovery mechanism (3), and a gas discharge pipe is provided above the return pipe (2) on the surface of the steam and water recovery mechanism (3).

6. The energy-saving steam-water recovery equipment for a condensing steam boiler according to claim 1, characterized in that, The top of the steam and water recovery mechanism (3) is equipped with several sets of water pumps (12). One end of each water pump (12) is connected to the deoxygenated water supply, and the other end is connected to the flow baffle (11), the cooling ring (10), and the cooling plate (14).

7. The energy-saving steam-water recovery equipment for a condensing steam boiler according to claim 1, characterized in that, One end of the serpentine tube inside the flow-blocking plate (11) is connected to the outlet of the water pump (12), and the other end is connected to the deoxygenated water supply.

8. The energy-saving steam-water recovery equipment for a condensing steam boiler according to claim 1, characterized in that, The steam and water recovery mechanism (3) has a cylindrical structure.

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