Sewage heat exchanger and sewage source heat pump system

Abstract

This application provides a wastewater heat exchange device and a wastewater source heat pump system. The wastewater heat exchange device includes a frame with a through hole extending through the frame in a first direction; a partition located within the through hole and extending in the first direction; the partition dividing the through hole into a first flow channel and a second flow channel in a second direction; the first flow channel for wastewater flow and the second flow channel for purified water flow; a flow-turbulence component is disposed within the first flow channel to agitate the wastewater flowing through it. This application embodiment, by dispersing the wastewater within the first flow channel, improves the flowability of the wastewater. This increased flowability allows the wastewater to carry impurities within the first flow channel, thus preventing the accumulation of impurities and clogging of the first flow channel.

Description

Technical Field

[0001] This application relates to the field of thermal management system technology, and in particular to a wastewater heat exchange device and a wastewater source heat pump system. Background Technology

[0002] Urban sewage, reclaimed water, and surface water contain huge low-grade heat sources, making them important application areas for renewable energy systems.

[0003] A conventional wastewater source heat pump system includes a plate heat exchanger. One channel of the plate heat exchanger is used for the flow of wastewater, and the other channel is used for the flow of purified water, so as to achieve heat exchange between wastewater and purified water.

[0004] Because wastewater contains a large number of impurities, these impurities can easily accumulate in the channels of a plate heat exchanger, leading to blockage of the channels. Summary of the Invention

[0005] This application provides a wastewater heat exchange device and a wastewater source heat pump system. The turbulence component can improve the flowability of wastewater in the first flow channel by turbulence. The improved flowability of wastewater allows the wastewater to carry impurities in the first flow channel, thereby preventing the accumulation of impurities in the wastewater in the first flow channel and thus preventing the first flow channel from being blocked by impurities in the wastewater.

[0006] In a first aspect, embodiments of this application provide a wastewater heat exchange device, including...

[0007] A frame having a through hole that extends through the frame along a first direction;

[0008] A partition is located within the through hole and extends along the first direction; the partition divides the through hole into a first flow channel and a second flow channel in a second direction; the first flow channel is used for sewage flow and the second flow channel is used for purified water flow.

[0009] A flow disturbance component is provided in the first flow channel, which is used to disturb the sewage flowing through the flow disturbance component.

[0010] In one possible implementation, the flow-disrupting assembly includes a flow-disrupting plate; the flow-disrupting plate has a front end and a rear end along the flow direction of the wastewater, the front end being rotatably connected to the inner wall of the first flow channel, and the rear end being rotatable about the front end within the first flow channel.

[0011] In one possible implementation, a first elastic element is provided inside the first flow channel, and the first elastic element is respectively connected to the inner wall of the first flow channel and the rear end.

[0012] The baffle plate has a first surface facing away from the first elastic member, and the first surface faces the flow direction of the sewage.

[0013] In one possible implementation, the inner wall of the first flow channel is provided with a mounting groove; the front end extends into the mounting groove, the mounting groove being used to restrict the rotation of the spoiler so that the rear end is located within the first flow channel.

[0014] In one possible implementation, the inner wall of the mounting groove is provided with a rotating groove; the front end is provided with a rotating shaft, a portion of which is located within the rotating groove.

[0015] In one possible implementation, the rotating groove extends perpendicular to the first direction so that the rotating shaft can reciprocate within the rotating groove in a direction perpendicular to the first direction.

[0016] In one possible implementation, at least one of the inner wall of the mounting groove and the inner wall of the rotating groove is provided with a second elastic element, the second elastic element being connected to the rotating shaft.

[0017] In one possible implementation, the outer surface of the spoiler is provided with bumps.

[0018] In one possible implementation, the end of the bump away from the spoiler is tapered.

[0019] Secondly, embodiments of this application provide a wastewater source heat pump system, including the aforementioned wastewater heat exchange device.

[0020] The wastewater heat exchange device and wastewater source heat pump system provided in this application embodiment improve the flowability of the wastewater by installing a turbulence component in the first flow channel. This increased flowability allows the wastewater to carry impurities within the channel, preventing their accumulation and blockage. As the wastewater is disturbed by the turbulence component, it carries impurities, causing collisions that can break them down into smaller particles, further preventing accumulation. The moving impurities also collide with those already attached to the sidewalls of the first flow channel, effectively cleaning it. Attached Figure Description

[0021] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0022] Figure 1 This is a schematic diagram of a wastewater heat exchange device provided in some embodiments of this application;

[0023] Figure 2 A cross-sectional view of a wastewater heat exchange device provided in some embodiments of this application;

[0024] Figure 3 This is a first partial structural cross-sectional view of a wastewater heat exchange device provided in some embodiments of this application;

[0025] Figure 4 A schematic diagram of a spoiler provided in some embodiments of this application;

[0026] Figure 5 This is a second partial structural cross-sectional view of the wastewater heat exchange device provided in some embodiments of this application.

[0027] Explanation of reference numerals in the attached figures:

[0028] 100. Frame; 110. Through hole; 110a. First flow channel; 110b. Second flow channel; 111. Partition plate; 112. Flow divider plate;

[0029] 200, spoiler; 210, front end; 211, rotating shaft; 220, rear end; 230, first surface; 240, protrusion;

[0030] 300. First elastic element;

[0031] 400, mounting slot; 410, opening; 420, rotating slot;

[0032] 500. Second elastic element.

[0033] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0034] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0035] Urban sewage, reclaimed water, and surface water contain huge low-grade heat sources, making them important application areas for renewable energy systems.

[0036] A conventional wastewater source heat pump system includes a plate heat exchanger. One channel of the plate heat exchanger is used for the flow of wastewater, and the other channel is used for the flow of purified water, so as to achieve heat exchange between wastewater and purified water.

[0037] Because wastewater contains a large number of impurities, these impurities can easily accumulate in the channels of a plate heat exchanger, leading to blockage of the channels.

[0038] The wastewater heat exchange device and wastewater source heat pump system provided in this application improve the flowability of the wastewater by installing a turbulence component in the first flow channel. This increased flowability allows the wastewater to carry impurities within the first flow channel, preventing their accumulation and blockage. As the wastewater is disturbed by the turbulence component, it carries impurities, causing collisions that can break them down into smaller particles, further preventing accumulation. Furthermore, the moving impurities can collide with those already attached to the sidewalls of the first flow channel, separating them and effectively cleaning the channel.

[0039] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0040] Firstly, see [the following] Figure 1 and Figure 2As shown in the illustration, this application provides a wastewater heat exchange device, which includes a frame 100. A through-hole 110 is provided inside the frame 100, extending along a first direction X and penetrating the frame 100. A partition 111 is provided within the through-hole 110 of the frame 100, extending along the first direction X and dividing the through-hole 110 into a first flow channel 110a and a second flow channel 110b in a second direction Y. Here, the second direction Y is perpendicular to the first direction X. The first flow channel 110a is used to allow the flow of wastewater, and the second flow channel 110b is used to allow the flow of purified water. Because the first flow channel 110a and the second flow channel 110b are isolated from each other, the wastewater in the first flow channel 110a will not contaminate the purified water in the second flow channel 110b. In this embodiment, when sewage flows in the first flow channel 110a and purified water flows in the second flow channel 110b, the sewage and purified water can exchange heat through the partition 111, thereby enabling the sewage to achieve the effect of regulating the purified water.

[0041] Since the purified water contains fewer impurities, it is less likely to cause blockage in the second flow channel 110b. In order to improve the heat exchange efficiency between purified water and sewage, in this embodiment of the application, multiple diversion plates 112 are provided in the second flow channel 110b. The multiple diversion plates 112 can divide the second flow channel 110b into multiple independent spaces. When purified water enters the second flow channel 110b, the multiple diversion plates 112 can divert the purified water into multiple streams to flow in the corresponding independent spaces, thereby increasing the contact area between the purified water and the partition plate 111. The diversion plates 112 can also transfer heat between sewage and purified water, thereby improving the heat exchange efficiency between purified water and sewage.

[0042] In the wastewater heat exchange device of this application embodiment, no component similar to the diverter plate 112 is provided in the first flow channel 110a, so that the first flow channel 110a can provide a larger flow space for wastewater, which can reduce the probability of impurities in the wastewater accumulating in the first flow channel 110a and avoid the impurities in the wastewater from causing blockage of the first flow channel 110a.

[0043] The wastewater heat exchange device of this application embodiment is provided with a turbulence-disrupting component in the first flow channel 110a. When wastewater flows through the turbulence-disrupting component in the first flow channel 110a, the turbulence-disrupting component can disturb the wastewater flowing through the turbulence-disrupting component.

[0044] It is worth mentioning that the turbulence component can improve the flowability of the sewage in the first flow channel 110a by agitating the sewage. The improved flowability of the sewage allows the sewage to carry impurities in the first flow channel 110a, thereby preventing the accumulation of impurities in the sewage in the first flow channel 110a and thus preventing the first flow channel 110a from being blocked by impurities in the sewage.

[0045] The increased flow of wastewater allows wastewater that is farther from the partition 111 to move closer to it, thereby improving the heat exchange efficiency between the wastewater and the partition 111, and consequently improving the heat exchange efficiency between the wastewater and the purified water.

[0046] Furthermore, when the wastewater is disturbed by the turbulence-inducing component, it can carry impurities within the first flow channel 110a. During this process, impurities collide with each other, and in some cases, these collisions can break them down into smaller particles, thus preventing their accumulation in the first flow channel 110a. The moving impurities can also collide with impurities already attached to the sidewalls of the first flow channel 110a, causing them to separate from the inner wall and effectively cleaning the first flow channel 110a.

[0047] In some implementations, see Figure 2 As shown, the flow disturbance assembly includes a flow disturbance plate 200, which has a front end 210 and a rear end 220 along the flow direction of the sewage. The flow direction of the sewage here is the first direction X mentioned above. That is, the flow disturbance plate 200 has a front end 210 and a rear end 220 along the first direction X.

[0048] In this embodiment of the application, the front end portion 210 of the spoiler 200 is rotatably connected to the inner wall of the first flow channel 110a, so that the rear end portion 220 of the spoiler 200 can rotate around the front end portion 210 of the spoiler 200 within the first flow channel 110a.

[0049] For example, when sewage flows in the first direction X within the first flow channel 110a, the sewage can generate thrust on the baffle 200, thereby causing the baffle 200 to rotate around the front end 210 of the baffle 200 within the first flow channel 110a under the push of the sewage, thereby enabling the baffle 200 to disturb the sewage and achieve the effect of turbulence.

[0050] The baffle 200 agitates the wastewater by rotating within the first flow channel 110a, thereby improving the flowability of the wastewater within the first flow channel 110a. The increased flowability of the wastewater allows it to carry impurities within the first flow channel 110a, thus preventing the accumulation of impurities in the wastewater within the first flow channel 110a and preventing the first flow channel 110a from being blocked by impurities in the wastewater.

[0051] The increased flow of wastewater allows wastewater that is farther from the partition 111 to move closer to it, thereby improving the heat exchange efficiency between the wastewater and the partition 111, and consequently improving the heat exchange efficiency between the wastewater and the purified water.

[0052] Furthermore, when the wastewater is turbulent by the baffle plate 200, the wastewater can carry impurities within the first flow channel 110a. During this process, impurities collide with each other, and in some cases, these collisions can break them down into smaller particles, thus preventing their accumulation in the first flow channel 110a. The moving impurities can also collide with impurities already attached to the sidewalls of the first flow channel 110a, causing them to separate from the inner wall of the first flow channel 110a, thereby cleaning the first flow channel 110a.

[0053] It is worth mentioning that the spoiler 200 in this embodiment can convert the thrust of sewage into rotational power, which can save energy.

[0054] In some implementations, see Figure 3 As shown, a first elastic element 300 is provided in the first flow channel 110a, and one end of the first elastic element 300 is connected to the inner wall of the first flow channel 110a, and the other end of the first elastic element 300 is connected to the rear end 220 of the baffle 200. When the sewage flows through the baffle 200, the baffle 200 can swing in the first flow channel 110a, thereby improving the baffle 200's turbulence effect on the sewage.

[0055] See Figure 3 As shown, since the first elastic member 300 is located between the inner wall of the first flow channel 110a and the rear end 220 of the baffle 200, the baffle 200 has a first surface 230 facing away from the first elastic member 300. In this state, the first surface 230 faces the flow direction of the sewage, that is, the sewage will act on the first surface 230 to push the baffle 200 to rotate.

[0056] For example, when sewage flows in the first direction X in the first flow channel 110a, the sewage first acts on the first surface 230, thereby pushing the baffle 200 to rotate. During this process, the baffle 200 rotates by compressing the first elastic member 300. Due to the change in the flow velocity of the sewage in the first flow channel 110a, and because the sewage contains a lot of impurities, the impurities affect the flow velocity of the sewage in the first flow channel 110a, causing the flow velocity of the sewage in the first flow channel 110a to change. This causes the first elastic member 300 to push the baffle 200, causing the baffle 200 to rotate in the opposite direction, thereby realizing the oscillation of the baffle 200 in the first flow channel 110a.

[0057] It is understandable that, since the thrust of the sewage on the baffle 200 is a variable force, and the thrust of the first elastic element 300 on the baffle 200 is a variable force, the baffle 200 can continuously oscillate during the flow of sewage in the first flow channel 110a, thereby improving the turbulence effect on the sewage.

[0058] It is worth mentioning that the movement of the baffle 200 within the first flow channel 110a not only disturbs the sewage, but also impacts impurities in the sewage, breaking down larger impurities into smaller ones, thereby preventing the accumulation of impurities within the first flow channel 110a and preventing the first flow channel 110a from being blocked.

[0059] In this embodiment, the first elastic element 300 is a spring, but in some cases, the first elastic element 300 may also be a rubber element or an airbag or other component with elastic properties.

[0060] In some implementations, see Figure 2 and Figure 5 As shown, a mounting groove 400 is provided on the inner wall of the first flow channel 110a, wherein the front end 210 of the spoiler 200 extends into the mounting groove 400 and is rotatably connected within the mounting groove 400. The mounting groove 400 can limit the rotation range of the spoiler 200 within the first flow channel 110a, so that the rear end 220 of the spoiler 200 can always be located within the first flow channel 110a.

[0061] For example, see Figure 2 and Figure 5 As shown, the mounting groove 400 provided on the inner wall of the first flow channel 110a has an opening 410. Since the front end 210 of the baffle 200 extends into the mounting groove 400, the opening 410 of the mounting groove 400 can limit the baffle 200 during the rotation of the baffle 200, thereby keeping the rear end 220 of the baffle 200 always within the first flow channel 110a. When the sewage flows in the first flow channel 110a, the sewage can act on the first surface 230 and push the baffle 200 to rotate, thereby allowing the baffle 200 to agitate the sewage.

[0062] In some implementations, see Figure 4 and Figure 5 As shown, a rotating groove 420 is provided on the inner wall of the mounting groove 400; a rotating shaft 211 is provided on the front end 210 of the spoiler 200, the front end 210 of the spoiler 200 extends into the mounting groove 400, and part of the rotating shaft 211 extends into the rotating groove 420, thereby enabling the spoiler 200 to rotate within the first flow channel 110a.

[0063] When wastewater acts on the first surface 230 of the baffle 200, the baffle 200 can drive the rotating shaft 211 to rotate within the rotating groove 420 by compressing the first elastic element 300. When the thrust of the first elastic element 300 on the baffle 200 is greater than the thrust of the wastewater on the baffle 200, the first elastic element 300 can push the baffle 200 to drive the rotating shaft 211 to rotate in the opposite direction within the rotating groove 420, thereby enabling the baffle 200 to oscillate within the first flow channel 110a.

[0064] In some implementations, see Figure 5 As shown, the rotating groove 420 extends along the first direction X, making the rotating groove 420 elongated. The rotating shaft 211 located in the rotating groove 420 can reciprocate along the rotating groove 420 in the first direction X.

[0065] Furthermore, in this embodiment of the application, while the baffle 200 can rotate within the first flow channel 110a, the baffle 200 can also move within the first flow channel 110a in a direction perpendicular to the first direction X, making the movement of the baffle 200 within the first flow channel 110a more diversified, thereby improving the disturbance effect of the baffle 200 on the sewage, improving the heat exchange efficiency between sewage and purified water, and preventing the accumulation of impurities within the first flow channel 110a.

[0066] It is worth mentioning that during the flow of sewage in the first flow channel 110a, impurities in the sewage will enter the rotating channel 420 through the mounting groove 400, making it easy for impurities to accumulate in the rotating channel 420 and causing the rotating shaft 211 to get stuck in the rotating channel 420. In this embodiment, by extending the rotating channel 420 perpendicular to the first direction X, when the sewage flows through the baffle 200, the rotating shaft 211 can move back and forth in the rotating channel 420 along the extension direction of the rotating channel 420, thereby enabling the rotating shaft 211 to clean the impurities in the rotating channel 420 and discharge the impurities from the rotating channel 420. This ensures the flexibility of the rotating shaft 211 in rotating within the rotating channel 420 and guarantees the rotation effect of the baffle 200 in the first flow channel 110a.

[0067] In order to improve the stability of the fit between the rotating shaft 211 and the rotating groove 420, in some cases, the rotating shaft 211 can be set in a T-shape, and correspondingly, the rotating groove 420 is also set in a T-shape, so as to prevent the rotating shaft 211 from disengaging from the rotating groove 420.

[0068] In some implementations, see Figure 3 and Figure 5As shown, the wastewater heat exchange device also includes a second elastic element 500. One end of the second elastic element 500 is connected to the inner wall of the mounting groove 400, and the other end of the second elastic element 500 is connected to the rotating shaft 211. When the wastewater flows through the baffle 200, under the action of the wastewater and the second elastic element 500, the rotating shaft 211 can reciprocate within the rotating groove 420 along the first direction X, thereby enabling the baffle 200 to reciprocate within the first flow channel 110a along the first direction X.

[0069] Since the first surface 230 of the baffle 200 faces the direction of sewage flow, and the front end 210 of the baffle 200 extends into the mounting groove 400, and the rear end 220 of the baffle 200 is located in the first flow channel 110a, when sewage acts on the first surface 230 of the baffle 200, the sewage will inevitably exert a force in the direction perpendicular to the first direction X to push the baffle 200. As a result, the baffle 200 moves in the direction perpendicular to the first direction X by moving the rotating shaft 211 in the rotating groove 420. During this process, the rotating shaft 211 compresses the second elastic member 500.

[0070] Due to the change in the flow velocity of the sewage in the first flow channel 110a, and because the sewage contains a lot of impurities, the impurities will affect the flow velocity of the sewage in the first flow channel 110a, causing the flow velocity of the sewage in the first flow channel 110a to change. This will cause the second elastic element 500 to push the rotating shaft 211, causing the rotating shaft 211 to move in the opposite direction in the rotating groove 420, thereby realizing the swing of the baffle 200 in the direction perpendicular to the first direction X, which can improve the disturbance effect of the baffle 200 on the sewage.

[0071] It is understandable that, since the thrust of the sewage on the baffle 200 is a variable force, and the thrust of the second elastic element 500 on the rotating shaft 211 is a variable force, the baffle 200 can continuously swing in the direction perpendicular to the first direction X during the flow of sewage in the first flow channel 110a, thereby improving the turbulence effect on the sewage.

[0072] It is worth mentioning that the movement of the baffle 200 in the direction perpendicular to the first direction X not only disturbs the sewage, but also impacts the impurities in the sewage, breaking down larger impurities into smaller ones, thereby preventing the accumulation of impurities in the first flow channel 110a and preventing the first flow channel 110a from being blocked.

[0073] In this embodiment, the second elastic element 500 is a spring, but in some cases, the second elastic element 500 may also be a rubber element or an airbag or other component with elastic properties.

[0074] Furthermore, the second elastic element 500 can also be located within the rotating groove 420, such that one end of the second elastic element 500 is connected to the inner wall of the rotating groove 420, and the other end of the elastic element is connected to the rotating shaft 211. The second elastic element 500, in conjunction with the wastewater, can also enable the baffle plate 200 to reciprocate in a direction perpendicular to the first direction X, thereby improving the baffle plate 200's turbulence effect. In other words, one end of the second elastic element 500 can be connected to either the inner wall of the mounting groove 400 or the inner wall of the rotating groove 420; there is no particular limitation on this.

[0075] In some implementations, see Figure 3 As shown, a protrusion 240 is provided on the outer surface of the spoiler 200.

[0076] It is understandable that when the sewage flows in the first flow channel 110a, when the sewage flows through the baffle 200, the sewage can cause impurities to collide with the protrusion 240, which can decompose the impurities in the collision and turn them into multiple smaller impurities, thereby preventing the accumulation of impurities in the first flow channel 110a.

[0077] Furthermore, when the sewage flows in the first flow channel 110a, the sewage, the first elastic member 300, and the second elastic member 500 work together to enable the baffle 200 to move in the first flow channel 110a. During the movement of the baffle 200, the baffle 200 will also drive the protrusion 240 to move synchronously, which will cause the protrusion 240 to collide with impurities in the sewage and decompose the impurities.

[0078] It is worth mentioning that, since the protrusion 240 is formed on the outer surface of the baffle 200, when the protrusion 240 collides with impurities in the sewage, the protrusion 240 can concentrate the force on the impurities more effectively, thereby promoting the decomposition of the impurities and making the decomposition more thorough. This can improve the fluidity of impurities in the sewage and prevent impurities from accumulating in the first flow channel 110a and causing blockage of the first flow channel 110a.

[0079] For example, in the embodiments of this application, see Figure 3 As shown, a protrusion 240 is provided on the first surface 230 of the spoiler 200. Since the first surface 230 faces the flow direction of the sewage, the impact effect between impurities in the sewage and the protrusion 240 is better, which is more conducive to the decomposition of impurities in the sewage. Of course, in some cases, the protrusion 240 can also be provided on other outer surfaces of the spoiler 200. For example, the protrusion 240 can be provided on the side of the spoiler 200 that is connected to the first elastic member 300. There is no particular limitation on this.

[0080] In some implementations, see Figure 3As shown, the end of the protrusion 240 away from the baffle 200 is tapered. When the sewage flows through the baffle 200 in the first flow channel 110a, the contact area between the impurities in the sewage and the protrusion 240 during the impact is smaller. This allows the impact force to be more concentrated on the impurities, thereby promoting the decomposition of the impurities and making the decomposition more thorough. This improves the fluidity of the impurities in the sewage and prevents the impurities from accumulating in the first flow channel 110a and causing blockage of the first flow channel 110a.

[0081] Secondly, this application provides a wastewater source heat pump system, which includes the aforementioned wastewater heat exchange device, and thus can achieve the corresponding technical effects and advantages.

[0082] Finally, it should be noted that other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein, and is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. A sewage heat exchanger, characterized by: include, A frame (100) having a through hole (110) extending through the frame (100) in a first direction. A partition (111) is located within the through hole (110) and extends along the first direction; the partition (111) divides the through hole (110) into a first flow channel (110a) and a second flow channel (110b) in a second direction; the first flow channel (110a) is used for sewage flow, and the second flow channel (110b) is used for purified water flow. A turbulence-disrupting component is provided in the first flow channel (110a) to disturb the sewage flowing through it; the second flow channel (110b) is not provided with the turbulence-disrupting component. The second flow channel (110b) is provided with a plurality of flow dividers (112), which are used to divide the second flow channel (110b) into a plurality of independent spaces; The first flow channel (110a) does not have the diversion plate (112), which provides a large flow space for the sewage. The flow disturbance component includes a flow disturbance plate (200); the flow disturbance plate (200) has a front end (210) and a rear end (220) along the flow direction of the sewage, the front end (210) is rotatably connected to the inner wall of the first flow channel (110a), and the rear end (220) is rotatable around the front end (210) within the first flow channel (110a); A first elastic element (300) is provided in the first flow channel (110a), and the first elastic element (300) is connected to the inner wall of the first flow channel (110a) and the rear end (220) respectively. The baffle (200) has a first surface (230) facing away from the first elastic member (300), and the first surface (230) faces the flow direction of the sewage.

2. The sewage heat exchanger according to claim 1, characterized in that: The inner wall of the first flow channel (110a) is provided with a mounting groove (400); the front end (210) extends into the mounting groove (400), the mounting groove (400) is used to restrict the rotation of the spoiler (200) so that the rear end (220) is located in the first flow channel (110a).

3. The sewage heat exchanger according to claim 2, characterized in that: The inner wall of the mounting groove (400) is provided with a rotating groove (420); the front end (210) is provided with a rotating shaft (211), and part of the rotating shaft (211) is located in the rotating groove (420).

4. The sewage heat exchanger according to claim 3, characterized in that: The rotating groove (420) extends perpendicular to the first direction so that the rotating shaft (211) can reciprocate within the rotating groove (420) perpendicular to the first direction.

5. The sewage heat exchanger according to claim 4, characterized in that: At least one of the inner wall of the mounting groove (400) and the inner wall of the rotating groove (420) is provided with a second elastic element (500), and the second elastic element (500) is connected to the rotating shaft (211).

6. The sewage heat exchanger according to any one of claims 1, 3-5, characterized in that: The outer surface of the spoiler (200) is provided with protrusions (240).

7. The wastewater heat exchanger according to claim 6, characterized in that: The end of the bump (240) away from the spoiler (200) is tapered.

8. A sewage source heat pump system characterized by: The wastewater heat exchange device includes any one of claims 1-7.

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