A condensate recovery device for a water heater

Abstract

This utility model discloses a condensate recovery device for a water heater, belonging to the field of condensate recovery. The condensate recovery device for a water heater includes a recovery tank, a mounting baffle fixedly connected to the right side of the recovery tank, an inlet pipe fixedly connected to the top of the recovery tank, an outlet pipe fixedly connected to the bottom left side of the recovery tank, and a drain pipe fixedly connected to the bottom right side of the recovery tank. It also includes a hollow sedimentation plate, which is fixedly installed on the bottom wall of the recovery tank. This utility model, by using a buffer plate, can buffer and dissipate the high-speed condensate introduced through the inlet pipe, preventing water flow disturbance from causing impurities to suspend, creating a stable flow environment for subsequent sedimentation. Simultaneously, the filter pore diameter of the multi-layer sedimentation filter plate gradually decreases from top to bottom, achieving a graded impurity removal effect, covering the separation needs of impurities of different particle sizes, thereby avoiding the defect of fine particles easily being lost with the water flow, thus significantly improving the purity of the condensate.

Description

Technical Field

[0001] This utility model relates to the field of condensate recovery technology, and in particular to a condensate recovery device for a water heater. Background Technology

[0002] In the industrial production field, water heaters are commonly used heat exchange equipment. During their operation, they generate a large amount of high-temperature condensate. This condensate is rich in heat energy. After being recovered by a recycling device, it is reintroduced into a steam generator for reuse, which is a key link in saving energy and reducing production costs. However, existing condensate recovery devices for water heaters still have significant drawbacks in practical applications, limiting the condensate recovery efficiency and the operational stability of subsequent systems. Specifically, when condensate is introduced into the recovery device from the steam generator, the flow velocity is high and the impact force is strong due to the influence of the conveying pressure and pipeline drop. Upon entering the recovery device directly, it creates severe flow disturbances. Since the condensate inevitably contains fine particulate impurities such as rust, scale, and pipeline corrosion products, these impurities flow rapidly under the influence of the high-speed water flow and are difficult to effectively accumulate at the drain outlet of the recovery device. Therefore, when directly drained, impurities tend to disperse throughout the water flow system, with only a small amount of larger particles being discharged through the drain outlet. Most fine particles remain with the continuous flow of condensate and are difficult to discharge directly, thus reducing the cleanliness of the condensate. Utility Model Content

[0003] The purpose of this invention is to solve the problem of impurities in condensate being difficult to remove in the prior art, and to propose a condensate recovery device for water heaters.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A condensate recovery device for a water heater includes a recovery tank, a mounting baffle fixedly connected to the right side of the recovery tank, an inlet pipe fixedly connected to the top of the recovery tank, an outlet pipe fixedly connected to the bottom left side of the recovery tank, and a drain pipe fixedly connected to the bottom right side of the recovery tank. The device also includes: A hollow sedimentation plate is fixedly installed on the bottom wall of the recycling tank. A lower connecting groove is opened at the bottom right side of the hollow sedimentation plate, and an upper connecting groove is opened at the top of the lower connecting groove. A sedimentation filter plate is fixedly installed inside the hollow sedimentation plate, and filter holes are opened on the surface of the sedimentation filter plate. A speed-reducing plate is fixedly installed at the top of the lower connecting groove, and through holes are opened on the surface of the speed-reducing plate.

[0005] Preferably, the lower connecting groove is located directly above the sewage pipe, and the height of the bottom wall of the hollow sedimentation plate gradually decreases from left to right.

[0006] Preferably, multiple sedimentation filter plates are provided, and the length of the multiple sedimentation filter plates gradually increases from top to bottom, and the left end faces of the multiple sedimentation filter plates are flush.

[0007] Preferably, the diameter of the filter holes on the surface of the plurality of sedimentation filter plates gradually decreases from top to bottom, and the diameter of the plurality of through holes gradually increases from top to bottom.

[0008] Preferably, a buffer plate is fixedly installed at the top of the hollow sedimentation plate, a water passage hole is opened at the top of the buffer plate, an upper guide groove is opened at the top of the buffer plate, a lower guide groove is opened at the bottom of the buffer plate, and a protrusion is fixedly installed inside the lower guide groove.

[0009] Preferably, the buffer plate is located directly above the upper connecting groove.

[0010] Preferably, the buffer plate has two layers, and the shape of the lower guide groove is a combination of the center circle and the rectangles on the front and rear sides.

[0011] Compared with the prior art, the present invention provides a condensate recovery device for a water heater, which has the following advantages: 1. The condensate recovery device for this water heater can buffer and dissipate the high-speed condensate introduced by the inlet pipe by means of a buffer plate, avoiding water flow disturbance that causes impurities to be suspended, and creating a stable flow environment for subsequent sedimentation. At the same time, the diameter of the filter holes of the multi-layer sedimentation filter plate gradually decreases from top to bottom, achieving a graded impurity removal effect, covering the separation needs of impurities of different particle sizes, thereby avoiding the defect that fine particles are easily lost with the water flow, thus significantly improving the purity of the condensate.

[0012] 2. The condensate recovery device for this water heater uses a design where both the hollow sedimentation plate and the sedimentation filter plate are tilted downwards to the right. Combined with the through holes of the deceleration plate, this further slows down the water flow. Under the combined influence of gravity and the slow flow, the trapped impurities naturally gather towards the drain pipe. The upper impurities can fall down to the lower sedimentation filter plate and the bottom wall of the hollow sedimentation plate, and are finally accurately guided into the drain pipe through the lower connecting channel for discharge. This achieves thorough removal of impurities without the need for large amounts of condensate discharge, effectively reducing wastewater loss and saving water resources.

[0013] 3. The condensate recovery device used in this water heater significantly reduces the impurity content of the condensate after graded impurity removal. This effectively prevents fine particulate impurities from causing wear and blockage to downstream equipment such as the outlet pipe, circulating water pump, and water heater inlet, thereby improving the operational stability and service life of the entire water heater system. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a condensate recovery device for a water heater proposed in this utility model; Figure 2 This is a schematic diagram of part A of a condensate recovery device for a water heater proposed in this utility model; Figure 3 This is a schematic diagram of part A of a condensate recovery device for a water heater proposed in this utility model; Figure 4 This is a schematic diagram of part A of a condensate recovery device for a water heater proposed in this utility model.

[0015] In the diagram: 1. Recycling tank; 2. Mounting baffle; 3. Inlet pipe; 4. Outlet pipe; 5. Sewage pipe; 6. Hollow sedimentation plate; 61. Lower connecting groove; 62. Upper connecting groove; 63. Sedimentation filter plate; 64. Filter hole; 65. Speed ​​reduction plate; 66. Through hole; 7. Buffer plate; 71. Water passage hole; 72. Upper guide groove; 73. Lower guide groove; 74. Protrusion. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0018] Reference Figures 1-3A condensate recovery device for a water heater includes a recovery tank 1. An operating hole is located at the center of the top of the recovery tank 1. During actual use, the top of the operating hole can be sealed using a flange connection. A mounting partition 2 is fixedly connected to the right side of the recovery tank 1. The mounting partition 2 is removable, allowing for the disassembly and replacement of various internal structures within the recovery tank 1. An inlet pipe 3 is fixedly connected to the top of the recovery tank 1. The top of the inlet pipe 3 is connected to the condensate outlet pipe of the water heater and is equipped with a check valve. An outlet pipe 4 is fixedly connected to the bottom left side of the recovery tank 1. The outlet pipe 4 is connected to the water heater via a water pump and a pipeline. The water inlet and the bottom right side of the recycling tank 1 are fixedly connected to a drain pipe 5. The tank also includes a hollow sedimentation plate 6, which is fixedly installed on the bottom wall of the recycling tank 1. The bottom of the hollow sedimentation plate 6 is semi-circular, and its height is one-quarter of that of the recycling tank 1. It is used to guide impurities in the condensate entering the recycling tank 1 for centralized discharge. A lower connecting groove 61 is provided at the bottom right side of the hollow sedimentation plate 6, located directly above the drain pipe 5. The height of the bottom wall of the hollow sedimentation plate 6 gradually decreases from left to right, facilitating the movement of impurities towards the drain pipe 5 under gravity and their subsequent discharge. An upper connecting groove 61 is provided at the top of the lower connecting groove 61. The top of the upper connecting channel 62 can be equipped with inclined plates extending to both sides, so that when condensate enters the recovery tank 1, it can be intercepted by the upper connecting channel 62 and guided into the hollow sedimentation plate 6. Sedimentation filter plates 63 are fixedly installed inside the hollow sedimentation plate 6. Multiple sedimentation filter plates 63 are provided, and the length of the multiple sedimentation filter plates 63 gradually increases from top to bottom. The left end faces of the multiple sedimentation filter plates 63 are flush. The bottom wall inclination angle of the hollow sedimentation plate 6 and the sedimentation filter plates 63 is 3-5 degrees, which ensures that impurities flow under gravity while avoiding excessive water flow speed. Filter holes 64 are opened on the surface of the sedimentation filter plates 63. The diameter of the filter holes 64 on the surface gradually decreases from top to bottom. The condensate entering the hollow sedimentation plate 6 will be filtered step by step on the surface of the multi-layer sedimentation filter plate 63. Then, it will gradually move to the right from top to bottom through the multi-layer sedimentation filter plate 63 until it is sucked into the drain pipe 5 through the lower connecting groove 61 and discharged. A speed-reducing plate 65 is fixedly installed at the top of the lower connecting groove 61. The surface of the speed-reducing plate 65 has through holes 66. The speed-reducing plate 65 and the through holes 66 can slow down the water flow speed entering the hollow sedimentation plate 6, and prevent impurities from being carried and flowing chaotically inside the hollow sedimentation plate 6 due to the excessive flow speed. The diameter of the multiple through holes 66 gradually increases from top to bottom.

[0019] Reference Figures 3-4A buffer plate 7 is fixedly installed at the top of the hollow sedimentation plate 6. The buffer plate 7 is located directly above the upper connecting groove 62. The water flow discharged from the water inlet pipe 3 will first contact the surface of the water passage hole 71. At this time, the water flow is buffered by the upper layer of the buffer plate 7 and flows to the lower layer. The top of the buffer plate 7 has a water passage hole 71 and an upper guide groove 72. The bottom of the buffer plate 7 has a lower guide groove 73. The buffer plate 7 has two layers. The shape of the lower guide groove 73 is a combination of a central circle and rectangles on the front and back sides. A protrusion 74 is fixedly installed inside the lower guide groove 73. The water flow to the lower layer of the buffer plate 7 will flow to the outside of the buffer plate 7 through the lower guide groove 73 and the protrusion 74 until it flows through the upper connecting groove 62 and enters the interior of the hollow sedimentation plate 6. In actual use, the condensate first flows through the water holes 71 of the upper buffer plate, and then is guided by the upper guide groove 72 and the lower guide groove 73. The protrusion 74 further disperses the water flow, achieving three-stage buffering to reduce the condensate flow rate.

[0020] In this utility model, after the operator connects the various pipes of the recycling tank 1, the external pipe connecting the inlet pipe 3 is opened first, and the external pipes connecting the outlet pipe 4 and the drain pipe 5 are closed. At this time, the condensate from the water heater will enter the interior of the recycling tank 1 through the inlet pipe 3. The condensate will first come into contact with the upper layer of the buffer plate 7 located at the top of the interior of the recycling tank 1. The condensate will be blocked by the upper layer of the buffer plate 7, reducing the downward flow speed. Then, the water flows down through the water passage 71 and the upper guide groove 72 to the interior of the lower guide groove 73. After that, the water flows along the lower guide groove 73 to the outside of the buffer plate 7 until the condensate flows up through the connecting groove 62 and enters the interior of the hollow sedimentation plate 6. At this time, the inclined plates on both sides of the top of the hollow sedimentation plate 6 can collect more condensate into the interior of the hollow sedimentation plate 6.

[0021] After the condensate enters the hollow sedimentation plate 6, both the hollow sedimentation plate 6 and the sedimentation filter plate 63 gradually slope downwards to the right. The water flows from left to right inside the hollow sedimentation plate 6. During this flow, the radius of the filter holes 64 gradually decreases from top to bottom on the surfaces of the upper and lower sedimentation filter plates 63. Therefore, impurities of different sizes are trapped on the surfaces of the upper and lower sedimentation filter plates 63. The size of the impurities gradually decreases from top to bottom. This stratified collection of impurities ensures that impurities of different sizes can be effectively captured. Compared to a single interception structure, this method provides more thorough impurity trapping. The trapped impurities are then released by the slow flow of the condensate. As the water continues to move slowly to the right under the flushing, the impurities on the upper layer will fall to the right edge of the top of the lower sedimentation filter plate 63, and then continue to fall down to the bottom wall of the hollow sedimentation plate 6. At this time, the water flow will carry the impurities through the lower connecting groove 61 directly into the interior of the drain pipe 5. At the same time, the control valve of the drain pipe 5 is opened, so that the condensate mixed with impurities is discharged through the drain pipe 5. After the impurities in the condensate are treated, the inlet pipe 3 and the drain pipe 5 are closed and the outlet pipe 4 is opened. At this time, the condensate inside the recovery tank 1 can be pumped into the interior of the water heater by the water pump, thereby achieving the purpose of reuse.

[0022] If it is necessary to inspect the internal structure of the recycling tank 1 after use, the installation partition 2 can be opened to facilitate the inspection of the internal structure of the recycling tank 1.

[0023] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A condensed water recovery device for a water heater comprising a recovery tank (1), characterized in that, A mounting plate (2) is fixedly connected to the right side of the recycling tank (1), a water inlet pipe (3) is fixedly connected to the top of the recycling tank (1), a water outlet pipe (4) is fixedly connected to the bottom left side of the recycling tank (1), and a sewage pipe (5) is fixedly connected to the bottom right side of the recycling tank (1). The tank also includes: A hollow sedimentation plate (6) is fixedly installed on the bottom wall of the recycling tank (1). A lower connecting groove (61) is provided at the bottom right side of the hollow sedimentation plate (6). An upper connecting groove (62) is provided at the top of the lower connecting groove (61). A sedimentation filter plate (63) is fixedly installed inside the hollow sedimentation plate (6). A filter hole (64) is provided on the surface of the sedimentation filter plate (63). A speed-reducing plate (65) is fixedly installed at the top of the lower connecting groove (61). A through hole (66) is provided on the surface of the speed-reducing plate (65).

2. The condensed water recovery device for a water heater according to claim 1, characterized by The lower connecting groove (61) is located directly above the sewage pipe (5), and the height of the bottom wall of the hollow sedimentation plate (6) gradually decreases from left to right.

3. The condensed water recovery device for a water heater according to claim 1, characterized by Multiple sedimentation filter plates (63) are provided, and the length of the multiple sedimentation filter plates (63) gradually increases from top to bottom, and the left end faces of the multiple sedimentation filter plates (63) are flush.

4. A condensate recovery device for a water heater according to claim 3, characterized in that, The diameter of the filter holes (64) on the surface of the plurality of sedimentation filter plates (63) gradually decreases from top to bottom, and the diameter of the plurality of through holes (66) gradually increases from top to bottom.

5. A condensate recovery device for a water heater according to claim 1, characterized in that, A buffer plate (7) is fixedly installed at the top of the hollow sedimentation plate (6). A water passage hole (71) is opened at the top of the buffer plate (7). An upper guide groove (72) is opened at the top of the buffer plate (7). A lower guide groove (73) is opened at the bottom of the buffer plate (7). A protrusion (74) is fixedly installed inside the lower guide groove (73).

6. A condensate recovery device for a water heater according to claim 5, characterized in that, The buffer plate (7) is located directly above the upper connecting groove (62).

7. A condensate recovery device for a water heater according to claim 5, characterized in that, The buffer plate (7) is provided with two layers, and the shape of the lower guide groove (73) is composed of a circle at the center and rectangles on the front and rear sides.

Images