Heat exchanger structure for wastewater evaporation system

Abstract

This application discloses a heat exchanger structure for a wastewater evaporation system, relating to the technical field of heat exchangers. The structure includes a heat exchanger body connected to an inlet pipe and an outlet pipe. The inlet pipe comprises a first tube, a second tube, and a third tube. The two ends of the second tube are connected to the first and third tubes, respectively. The first tube is connected to the heat exchanger body and is equipped with a first filter screen. The second tube is also equipped with a second filter screen, the radius of which is smaller than that of the second filter screen. A first sealing and fixing assembly connects the first and second tubes, and a second sealing and fixing assembly connects the second and third tubes. This application utilizes the second and first filter screens to perform two-stage filtration of impurities in the liquid, thereby reducing the amount of impurities entering the heat exchanger body.

Description

Technical Field

[0001] This application relates to the technical field of heat exchangers, and in particular to a heat exchanger structure for a wastewater evaporation system. Background Technology

[0002] Wastewater evaporation systems are physicochemical treatment technologies that utilize thermal energy to evaporate water from wastewater into steam, thereby significantly concentrating or completely drying the wastewater and achieving wastewater reduction and pollutant recovery / disposal. The heat exchanger is responsible for transferring heat energy to the wastewater, causing it to evaporate. Its structural design directly determines its heat transfer efficiency, anti-scaling ability, and operational stability.

[0003] Existing heat exchangers have inlet and outlet pipes. Liquid enters the heat exchanger through the inlet pipe and exits through the outlet pipe. During use, impurities are mixed in with the liquid. Over time, these impurities adhere to the inner wall of the heat exchanger. As these impurities accumulate, they severely affect the heat exchange efficiency, necessitating improvement. Utility Model Content

[0004] The purpose of this application is to provide a heat exchanger structure for a wastewater evaporation system in order to reduce the entry of impurities into the heat exchanger body.

[0005] The heat exchanger structure for a wastewater evaporation system provided in this application adopts the following technical solution: it includes a heat exchanger body, the heat exchanger body is connected to an inlet pipe and an outlet pipe, the inlet pipe includes a first pipe body, a second pipe body and a third pipe body, the two ends of the second pipe body are respectively connected to the first pipe body and the third pipe body, the first pipe body is connected to the heat exchanger body, the first pipe body is connected to a first filter screen, the second pipe body is connected to a second filter screen, the radius of the first filter screen is smaller than the radius of the second filter screen, a first sealing and fixing component is connected between the first pipe body and the second pipe body, the first pipe body and the second pipe body are connected through the first sealing and fixing component, and a second sealing and fixing component is connected between the second pipe body and the third pipe body, the second pipe body and the third pipe body are connected through the second sealing and fixing component.

[0006] By adopting the above technical solution, the liquid enters the heat exchanger body through the third tube, the second tube and the first tube in sequence. During the process, the liquid passes through the second filter screen and the first filter screen in sequence. The first filter screen and the second filter screen have different radius sizes, which can perform two-stage filtration of impurities in the liquid, thereby reducing the number of impurities entering the heat exchanger body and ensuring the heat exchange effect of the heat exchanger.

[0007] Optionally, the first pipe body is connected to a first flange, the second pipe body is connected to a second flange, and the first sealing and fixing assembly includes a first sealing ring, a plurality of bolts and a plurality of nuts corresponding to each bolt. The nuts are threadedly connected to the bolts. The first sealing ring is used to seal the gap between the first flange and the second flange. Both the first flange and the second flange are provided with through holes corresponding to each bolt, and the through holes are used for the bolts to pass through.

[0008] By adopting the above technical solution, the first sealing ring seals the gap between the first and second flanges, thereby preventing liquid leakage from the gap between the first and second flanges. The first and second flanges are connected by bolts and nuts, making installation and disassembly convenient. When it is necessary to clean impurities adhering to the first filter screen, the nuts can be loosened to separate the first and second flanges, exposing the first filter screen for easy cleaning by personnel, thus preventing impurities from accumulating on the first filter screen.

[0009] Optionally, both the first flange and the second flange are provided with a first annular groove, which is used to mate with the first sealing ring, and all the bolts are wrapped around the first sealing ring.

[0010] By adopting the above technical solution, the first sealing ring is engaged with the first annular groove, and the outer surface of the first sealing ring fits against the inner wall of the first annular groove. The inner wall of the first annular groove restricts the movement of the first sealing ring, thereby improving the stability of the first sealing ring installed between the first flange and the second flange. The fit between the first sealing ring and the first annular groove increases the flow path of the liquid and improves the sealing effect. All bolts are wrapped around the first sealing ring to prevent liquid leakage from the through hole and improve the sealing performance.

[0011] Optionally, the second flange is connected to a plurality of positioning blocks, and the first flange is provided with positioning grooves corresponding to the positioning blocks one by one. The positioning grooves are used to cooperate with the positioning blocks. When the positioning block abuts against the inner wall of one side of the positioning groove, the through hole on the first flange is aligned with the through hole on the second flange.

[0012] By adopting the above technical solution, when the first flange and the second flange are installed together, the positioning block is inserted into the positioning groove and abuts against the inner wall of one side of the positioning groove, thereby achieving precise positioning of the first flange and the second flange and improving the installation efficiency between the first flange and the second flange.

[0013] Optionally, the positioning block includes a connecting block and a limiting block disposed on the connecting block. The connecting block is connected to the second flange. The positioning groove includes a recess, a rotating groove, and a clearance groove. The recess, the rotating groove, and the clearance groove are interconnected. The recess is used for the connecting block and the limiting block to engage. The rotating groove is used for rotatable engagement with the limiting block. The clearance groove is used for rotatable engagement with the connecting block. When the limiting block abuts against the inner wall of the rotating groove on the side away from the recess, the through hole on the first flange is aligned with the through hole on the second flange.

[0014] By adopting the above technical solution, when installing the first and second flanges, both the connecting block and the limiting block are engaged in the grooves. Rotating the second flange relative to the first flange causes it to rotate around its own axis. This means both the connecting block and the limiting block rotate around the axis of the second flange, causing the limiting block to rotate into the rotating groove and abut against the inner wall of the rotating groove on the side furthest from the groove. This allows the second flange to rotate precisely to the corresponding position, improving the installation efficiency between the second and first flanges. The cooperation between the limiting block and the rotating groove restricts the movement of the first flange relative to the axis of the second flange, thereby improving the positioning stability between the first and second flanges and increasing the installation efficiency.

[0015] Optionally, the first filter screen is connected to a mounting ring, and the first tube body is provided with a mounting groove for engaging with the mounting ring.

[0016] By adopting the above technical solution, the mounting ring is inserted into the mounting groove, and the outer circumferential surface of the mounting ring fits against the inner wall of the mounting groove. The inner wall of the mounting groove plays a positioning role in the installation of the mounting ring, so that the mounting ring is accurately installed in the corresponding position.

[0017] Optionally, the second tube body is connected to an abutment ring portion, which is used to abut against the mounting ring.

[0018] By adopting the above technical solution, when the second pipe body is connected to the first pipe body, the abutting ring abuts against the mounting ring, and the mounting ring is clamped by the inner wall of the mounting groove and the abutting ring, thereby restricting the movement of the mounting ring and improving the stability of the mounting ring installed in the mounting groove.

[0019] Optionally, the mounting ring is provided with a handle portion, and the abutment ring portion is provided with a relief groove, the relief groove being used to cooperate with the handle portion.

[0020] By adopting the above technical solution, the handle makes it easier for operators to pick up the installation ring, thus improving the efficiency of operators in picking up the installation ring.

[0021] Optionally, a second sealing ring is installed in the mounting groove, and the first tube body is provided with a second annular groove communicating with the mounting groove. The second annular groove is used to cooperate with the second sealing ring, and the mounting ring abuts against the second sealing ring.

[0022] By adopting the above technical solution, the gap between the inner wall of the second sealing ring and the mounting ring is sealed, ensuring that the liquid passes through the first filter screen and enters the heat exchanger body, thereby improving the filtration effect.

[0023] Optionally, the mounting ring is provided with a stop portion, and the first tube body is provided with a braking groove communicating with the mounting groove, the stop groove being used to cooperate with the stop portion.

[0024] By adopting the above technical solution, the stop part is inserted into the stop groove, and the outer surface of the stop part is in contact with the inner wall of the stop groove. The inner wall of the stop groove restricts the rotation of the mounting ring, thereby improving the stability of the mounting ring installed in the mounting groove.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. The liquid enters the heat exchanger body by passing through the third tube, the second tube and the first tube in sequence. The liquid passes through the second filter screen and the first filter screen in sequence. The first filter screen and the second filter screen have different radius sizes, which can filter impurities in the liquid in two stages, thereby reducing the number of impurities entering the heat exchanger body and ensuring the heat exchange effect of the heat exchanger.

[0026] 2. The cooperation between the limiting block and the rotating groove restricts the movement of the first flange relative to the axis of the second flange, thereby improving the stability of the positioning between the first and second flanges and improving the installation efficiency of the first and second flanges. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0028] Figure 2 This is a schematic diagram of the overall structure of the inlet pipe.

[0029] Figure 3 yes Figure 2 A sectional view.

[0030] Figure 4 yes Figure 3 An enlarged view of region A.

[0031] Figure 5 yes Figure 2 One of the exploded views shows the positioning block.

[0032] Figure 6 yes Figure 5 A magnified view of region B.

[0033] Figure 7 yes Figure 2 The second exploded view shows the positioning slot.

[0034] Figure 8 yes Figure 7 A magnified view of region C.

[0035] Explanation of reference numerals in the attached drawings: 1. Heat exchanger body; 2. Inlet pipe; 21. First pipe body; 211. Mounting groove; 212. Second sealing ring; 213. Second annular groove; 214. Stop groove; 22. Second pipe body; 221. Abutting ring; 222. Clearance groove; 23. Third pipe body; 3. Outlet pipe; 4. First filter screen; 41. Mounting ring; 42. Stopping part; 43. Handle part; 5. Second filter screen; 6. First sealing and fixing assembly; 61. First sealing ring; 62. Bolt; 63. Nut; 7. First flange; 71. First annular groove; 72. Positioning groove; 721. Groove; 722. Rotation groove; 723. Clearance groove; 8. Second flange; 81. Positioning block; 811. Connecting block; 812. Limiting block. Detailed Implementation

[0036] The following is in conjunction with the appendix Figure 1 -Appendix Figure 8 This application will be described in further detail.

[0037] This application discloses a heat exchanger structure for a wastewater evaporation system.

[0038] like Figure 1 As shown, the device includes a heat exchanger body 1, with an inlet pipe 2 and an outlet pipe 3 fixedly connected to the heat exchanger body 1. The inlet pipe 2 includes a first pipe body 21, a second pipe body 22, and a third pipe body 23. The first pipe body 21 is fixedly connected to the heat exchanger body 1, and the second pipe body 22 is located between the first pipe body 21 and the third pipe body 23. The two ends of the second pipe body 22 are respectively connected to the first pipe body 21 and the second pipe body 23.

[0039] Combination Figure 2 , Figure 3 and Figure 4As shown, a first tube 21 is connected to a first filter screen 4, and a second tube 22 is connected to a second filter screen 5. The aperture of the first filter screen 4 is smaller than that of the second filter screen 5. The connection method between the first filter screen 4 and the first tube 21 is the same as the connection method between the second filter screen 5 and the second tube 22. The connection method between the first filter screen 4 and the first tube 21 will be described below. A mounting ring 41 is fixedly connected to the outer circumferential surface of the first filter screen 4. The first tube 21 has a mounting groove 211. The mounting ring 41 is inserted into the mounting groove 211 and fits against the inner wall of the mounting groove 211. A second sealing ring 212 is installed in the mounting groove 211. The first tube 21 has a second annular groove 213 communicating with the mounting groove 211. The second sealing ring 212 is inserted into the second annular groove 213 and fits against the inner wall of the second annular groove 213. When the mounting ring 41 is installed in the mounting groove 211, the mounting ring 41 abuts against the second sealing ring 212. Two stop portions 42 are provided opposite to each other on the outer circumferential surface of the mounting ring 41. The stop portions 42 are integrally formed with the mounting ring 41. The first tube body 21 has stop grooves 214 corresponding to the stop portions 42. The stop grooves 214 are connected to the mounting grooves 211. The stop portions 42 are engaged in the stop grooves 214 and fit against the inner wall of the stop grooves 214, thereby restricting the rotation of the mounting ring 41. The second tube body 22 is fixedly connected with an abutment ring portion 221. The abutment ring portion 221 is engaged in the mounting grooves 211 and fits against the inner wall of the mounting grooves 211, and the abutment ring portion 221 abuts against the mounting ring 41. Two handle portions 43 are fixedly connected opposite to each other on the side of the mounting ring 41 away from the second sealing ring 212. The abutment ring portion 221 has relief grooves 222 corresponding to the handle portions 43, and the relief grooves 222 can be engaged with the handle portions 43.

[0040] Combination Figure 4 , Figure 5 and Figure 6As shown, a first sealing and fixing assembly 6 connects the first pipe body 21 and the second pipe body 22, and the first pipe body 21 and the second pipe body 22 are fixedly connected by the first sealing and fixing assembly 6. A second sealing and fixing assembly connects the second pipe body 22 and the third pipe body 23, and the second pipe body 22 and the third pipe body 23 are fixedly connected by the second sealing and fixing assembly. The first sealing and fixing assembly 6 and the second sealing and fixing assembly have the same structure, only the installation position is different. The first sealing and fixing assembly 6 is used as an example for explanation. A first flange 7 is fixedly connected to the outer circumferential surface of the first pipe body 21, and a second flange 8 is fixedly connected to the outer circumferential surface of the second pipe body 22. The first sealing and fixing assembly 6 includes a first sealing ring 61, several bolts 62, and several nuts 63 corresponding to the bolts 62. The nuts 63 are threadedly connected to the bolts 62. The first sealing ring 61 seals the gap between the first flange 7 and the second flange 8. A first annular groove 71 is opened on the opposite side of the first flange 7 and the second flange 8. The first sealing ring 61 is inserted into the first annular groove 71 and fits against the inner wall of the first annular groove 71. Both the first flange 7 and the second flange 8 have through holes corresponding to the bolts 62. The threaded end of the bolt 62 passes through the through hole and fits against the inner wall of the through hole. All through holes are located on the outer ring of the first sealing ring 61 and are evenly distributed around the axis of the first sealing ring 61.

[0041] Combination Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, a plurality of positioning blocks 81 are connected to the side of the second flange 8 near the first flange 7. Taking this embodiment as an example, there are two positioning blocks 81, which are spaced apart. The side of the first flange 7 near the second flange 8 has positioning grooves 72 that correspond one-to-one with the positioning blocks 81. The positioning block 81 includes a connecting block 811 and a limiting block 812 disposed on the connecting block 811. The limiting block 812 is integrally formed with the connecting block 811. The connecting block 811 is fixedly connected to the second flange 8. The positioning block 81 is L-shaped. The positioning groove 72 includes a groove 721, a rotating groove 722, and a clearance groove 723. The groove 721, the rotating groove 722, and the clearance groove 723 are interconnected. The connecting block 811 and the limiting block 812 can both be inserted into the groove 721. The limiting block 812 is rotatably engaged with the rotating groove 722, and the connecting block 811 is rotatably engaged with the clearance groove 723. When the limiting block 812 abuts against the inner wall of the limiting groove away from the groove 721, the through hole on the first flange 7 is aligned with the through hole on the second flange 8, which facilitates the fixed connection between the first flange 7 and the second flange 8 by bolts 62.

[0042] The implementation principle of a heat exchanger structure for a wastewater evaporation system according to an embodiment of this application is as follows: the liquid enters the heat exchanger body 1 through the third tube 23, the second tube 22 and the first tube 21 in sequence. During the process, the liquid passes through the second filter screen 5 and the first filter screen 4 in sequence. The first filter screen 4 and the second filter screen 5 have different radius sizes, which can perform two-stage filtration of impurities in the liquid, thereby reducing the number of impurities entering the heat exchanger body 1 and ensuring the heat exchange effect of the heat exchanger.

[0043] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A heat exchanger structure for a wastewater evaporation system, comprising a heat exchanger body (1), wherein the heat exchanger body (1) is connected to an inlet pipe (2) and an outlet pipe (3), characterized in that: The inlet pipe (2) includes a first pipe body (21), a second pipe body (22) and a third pipe body (23). The two ends of the second pipe body (22) are connected to the first pipe body (21) and the third pipe body (23) respectively. The first pipe body (21) is connected to the heat exchanger body (1). The first pipe body (21) is connected to a first filter screen (4). The second pipe body (22) is connected to a second filter screen (5). The radius of the first filter screen (4) is smaller than the radius of the second filter screen (5). A first sealing and fixing assembly (6) is connected between the first pipe body (21) and the second pipe body (22). The first pipe body (21) and the second pipe body (22) are connected through the first sealing and fixing assembly (6). A second sealing and fixing assembly is connected between the second pipe body (22) and the third pipe body (23). The second pipe body (22) and the third pipe body (23) are connected through the second sealing and fixing assembly.

2. The heat exchanger structure for the wastewater evaporation system according to claim 1, characterized in that: The first pipe body (21) is connected to the first flange (7), and the second pipe body (22) is connected to the second flange (8). The first sealing and fixing assembly (6) includes a first sealing ring (61), a plurality of bolts (62) and a plurality of nuts (63) corresponding to the bolts (62). The nuts (63) are threadedly connected to the bolts (62). The first sealing ring (61) is used to seal the gap between the first flange (7) and the second flange (8). The first flange (7) and the second flange (8) are both provided with through holes corresponding to the bolts (62). The through holes are used for the bolts (62) to pass through.

3. The heat exchanger structure for the wastewater evaporation system according to claim 2, characterized in that: Both the first flange (7) and the second flange (8) are provided with a first annular groove (71), which is used to cooperate with the first sealing ring (61), and all the bolts (62) are surrounded by the first sealing ring (61).

4. The heat exchanger structure for the wastewater evaporation system according to claim 2, characterized in that: The second flange (8) is connected to a plurality of positioning blocks (81), and the first flange (7) is provided with positioning grooves (72) corresponding to the positioning blocks (81) one by one. The positioning grooves (72) are used to cooperate with the positioning blocks (81). When the positioning block (81) abuts against the inner wall of one side of the positioning groove (72), the through hole on the first flange (7) is aligned with the through hole on the second flange (8).

5. The heat exchanger structure for the wastewater evaporation system according to claim 4, characterized in that: The positioning block (81) includes a connecting block (811) and a limiting block (812) disposed on the connecting block (811). The connecting block (811) is connected to the second flange (8). The positioning groove (72) includes a groove (721), a rotating groove (722), and a clearance groove (723). The groove (721), the rotating groove (722), and the clearance groove (723) are interconnected. The groove (721) is used for the connecting block (811) and the limiting block (812) to engage. The rotating groove (722) is used for rotating engagement with the limiting block (812). The clearance groove (723) is used for rotating engagement with the connecting block (811). When the limiting block (812) abuts against the inner wall of the rotating groove (722) away from the groove (721), the through hole on the first flange (7) is aligned with the through hole on the second flange (8).

6. The heat exchanger structure for the wastewater evaporation system according to claim 1, characterized in that: The first filter screen (4) is connected to an installation ring (41), and the first tube body (21) is provided with an installation groove (211), which is used to cooperate with the installation ring (41).

7. The heat exchanger structure for the wastewater evaporation system according to claim 6, characterized in that: The second tube body (22) is connected to an abutment ring (221), which is used to abut against the mounting ring (41).

8. The heat exchanger structure for the wastewater evaporation system according to claim 7, characterized in that: The mounting ring (41) is provided with a handle (43), and the abutting ring (221) is provided with a relief groove (222), which is used to cooperate with the handle (43).

9. The heat exchanger structure for the wastewater evaporation system according to claim 6, characterized in that: The mounting groove (211) is equipped with a second sealing ring (212), and the first tube body (21) is provided with a second annular groove (213) that communicates with the mounting groove (211). The second annular groove (213) is used to cooperate with the second sealing ring (212), and the mounting ring (41) abuts against the second sealing ring (212).

10. The heat exchanger structure for the wastewater evaporation system according to claim 6, characterized in that: The mounting ring (41) is provided with a stop part (42), and the first tube body (21) is provided with a stop groove (214) that communicates with the mounting groove (211). The stop groove (214) is used to cooperate with the stop part (42).

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