Flange structure for heat exchanger and liquid treatment apparatus

Abstract

The application discloses a flange structure for a heat exchanger and a liquid treatment device, which comprises a flange plate and a mounting assembly, the flange plate is provided with a liquid inlet through hole, the mounting assembly comprises a first connecting piece and a first sealing piece, the first connecting piece is used for connecting a liquid inlet pipeline, the first connecting piece is provided with a first through hole used for communicating with the liquid inlet pipeline, the first connecting piece is detachably fixed with the flange plate and makes the first through hole communicate with the liquid inlet through hole, so that the liquid inlet pipeline communicates with the liquid inlet through hole, and the first sealing piece is arranged between the first connecting piece and the flange plate. The first connecting piece is detachably fixed with the flange plate, the liquid inlet pipeline is connected with the flange plate through the first connecting piece, and the communication between the liquid inlet pipeline and the liquid inlet through hole is realized; compared with a traditional welding fixing mode, the liquid inlet pipeline can be mounted with the flange plate and communicate with the liquid inlet through hole without welding, and the first sealing piece ensures the sealing performance between the first connecting piece and the flange plate, so that the actual production needs are met.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heat exchange, in particular to a flange structure for a heat exchanger and a liquid processing device. BACKGROUND

[0002] In the pharmaceutical, chemical and other industries, the hygiene level requirement is very high, and heat exchangers are usually used to exchange heat of materials, which puts forward higher requirements for the interface of the heat exchanger.

[0003] The heat exchanger cools or heats the material through the flow of heat exchange medium, and the end part of the heat exchanger used for the clean medium to enter and flow out is called a clean end. In order to connect the pipeline of the heat exchange medium with the heat exchanger, the flange is usually used to connect with the heat exchanger, and then the pipeline of the heat exchange medium is welded with the flange. However, the operation of welding the pipeline of the heat exchange medium with the flange will cause thermal deformation of the flange and the pipeline of the heat exchange medium due to welding, which affects the assembly precision, and on the other hand, the decline of the assembly precision affects the reliability of the connection, and thus it is difficult to ensure the reliability of the seal. SUMMARY

[0004] Therefore, it is necessary to provide a flange structure for a heat exchanger and a liquid processing system; the flange structure for the heat exchanger can be installed without welding, so that the assembly precision is not reduced due to thermal deformation caused by welding, and the seal is relatively good.

[0005] The technical scheme is as follows:

[0006] One embodiment provides a flange structure for a heat exchanger, comprising:

[0007] A flange plate is provided with a liquid inlet through hole;

[0008] An installation assembly includes a first connecting piece and a first sealing piece, the first connecting piece is used to connect the liquid inlet pipeline, the first connecting piece is provided with a first through hole for communicating with the liquid inlet pipeline, the first connecting piece is detachably fixed with the flange plate and makes the first through hole communicate with the liquid inlet through hole, so that the liquid inlet pipeline communicates with the liquid inlet through hole, and the first sealing piece is arranged between the first connecting piece and the flange plate.

[0009] The flange structure for the heat exchanger, the flange plate is used for being fixed with the clean end of the heat exchanger, the first connecting piece is detachably fixed with the flange plate, the first through hole is communicated with the liquid inlet through hole, and the liquid inlet pipeline is connected with the flange plate through the first connecting piece, so that the liquid inlet pipeline is communicated with the liquid inlet through hole; compared with the traditional welding fixing mode, the liquid inlet pipeline and the flange plate can be installed and communicated with the liquid inlet through hole without welding, and the sealing performance between the first connecting piece and the flange plate is ensured by the first sealing piece, so that the actual production needs are met.

[0010] The technical scheme is further described below:

[0011] In one of the embodiments, the flange plate is further provided with a liquid outlet through hole, the liquid outlet through hole is arranged at intervals with the liquid inlet through hole, the mounting assembly further comprises a second connecting piece and a second sealing piece, the second connecting piece is used for connecting the liquid outlet pipeline, the second connecting piece is provided with a second through hole for being communicated with the liquid outlet pipeline, the second connecting piece is detachably fixed with the flange plate and makes the second through hole communicated with the liquid outlet through hole, so that the liquid outlet pipeline is communicated with the liquid outlet through hole, and the second sealing piece is arranged between the second connecting piece and the flange plate.

[0012] In one of the embodiments, the arrangement position of the liquid inlet through hole is higher than that of the liquid outlet through hole, the first connecting piece is used for connecting the first end of the liquid inlet pipeline, and the first connecting piece is arranged obliquely relative to the flange plate, so that the second end of the liquid inlet pipeline is higher than the first end.

[0013] In one of the embodiments, the flange plate is provided with a matching groove, the profile of the matching groove is matched with the profile of the first connecting piece, and the first connecting piece is fixed with the flange plate through the matching groove.

[0014] In one of the embodiments, the first connecting piece is arranged in a plate shape, the groove bottom surface of the matching groove is arranged obliquely relative to the disc surface of the flange plate, and the upper part of the groove bottom surface of the matching groove is inclined towards the direction away from the first connecting piece of the flange plate, so that the first connecting piece is arranged obliquely relative to the flange plate.

[0015] In one of the embodiments, the liquid inlet through hole is arranged through the bottom wall of the matching groove, the flange plate is further provided with a first mounting groove, the first mounting groove is arranged on the bottom wall of the matching groove and surrounds the outer periphery of the liquid inlet through hole; the first sealing piece is a first sealing ring matched with the first mounting groove, the first sealing ring is pressed between the first connecting piece and the flange plate, and part of the first sealing ring is located in the first mounting groove;

[0016] Or / and, the flange plate is further provided with a second installation groove, the second installation groove surrounds the outer periphery of the liquid outlet through hole, the second sealing piece is a second sealing ring matched with the second installation groove, the second sealing ring is pressed between the second connecting piece and the flange plate, and part of the second sealing ring is located in the second installation groove.

[0017] In one of the embodiments, the installation assembly further comprises a first fixing piece, and the first fixing piece is used for detachably fixing the first connecting piece to the flange plate.

[0018] Or / and, the installation assembly further comprises a second fixing piece, and the second fixing piece is used for detachably fixing the second connecting piece to the flange plate.

[0019] In one of the embodiments, the first connecting piece is a regular polygon plate; or / and, the second connecting piece is a regular polygon plate.

[0020] In one of the embodiments, the flange plate is a disc, and the flange plate is used for fixing with the heat exchanger; the liquid inlet through hole and the liquid outlet through hole are both circular holes.

[0021] Another embodiment provides a liquid treatment device comprising the flange structure for the heat exchanger according to any one of the above technical solutions.

[0022] The liquid treatment device adopts the flange structure for the heat exchanger, so that the first pipeline of the heat exchange medium and the flange plate are installed in a non-welding manner, and the assembly precision and sealing requirements are met, and then the liquid treatment is performed in cooperation with the heat exchanger. BRIEF DESCRIPTION OF DRAWINGS

[0023] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application and are incorporated in and constitute a part of this application. The embodiments of the application illustrated in the drawings are presented by way of example or for purpose of illustration, and not as limitations of the application.

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0025] In addition, the drawings are not drawn in a 1:1 ratio, and the relative sizes of the various elements are only exemplarily drawn in the drawings, but not necessarily drawn in true proportions.

[0026] Figure 1 The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application and are incorporated in and constitute a part of this application. The embodiments of the application illustrated in the drawings are presented by way of example or for purpose of illustration, and not as limitations of the application.

[0027] Figure 2 For Figure 1 Overall schematic view of the flange structure for the heat exchanger in the embodiment;

[0028] Figure 3 For Figure 2 Exploded schematic view of the flange structure for the heat exchanger in the embodiment;

[0029] Figure 4 For Figure 2 Sectional schematic view of the flange structure for the heat exchanger in the embodiment;

[0030] Figure 5 For Figure 2 Side view of the flange structure for the heat exchanger in the embodiment;

[0031] Figure 6 For Figure 2 Overall structure schematic view of the flange plate in the embodiment;

[0032] Figure 7 For Figure 2 Overall structure schematic view of the first connecting piece in the embodiment.

[0033] BRIEF DESCRIPTION OF DRAWINGS

[0034] 100, flange plate; 110, liquid inlet through hole; 120, liquid outlet through hole; 130, matching groove; 140, first mounting groove; 150, second mounting groove; 210, first connecting piece; 211, first through hole; 220, second connecting piece; 221, second through hole; 300, heat exchanger. DETAILED DESCRIPTION

[0035] The embodiments of the present application will be described in detail below with reference to the accompanying drawings:

[0036] In order to make the above objectives, features and advantages of the present application more apparent, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, a lot of specific details are set forth in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the scope of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0037] Please refer to Figures 1 to 3 , Figure 6 and Figure 7 , one embodiment provides a flange structure for a heat exchanger 300, comprising a flange plate 100 and a mounting assembly, the flange plate 100 is used to connect with the heat exchanger 300, and the mounting assembly is used to mount the pipeline of heat exchange medium, so that the pipeline of heat exchange medium is communicated with the heat exchanger 300.

[0038] Wherein:

[0039] As shown in Figure 3 and Figure 6 , the flange plate 100 is provided with a liquid inlet through hole 110.

[0040] As shown in Figure 1 , the heat exchanger 300 is arranged in a long strip shape, and the clean end of the heat exchanger 300 is used for entering and flowing out of the heat exchange medium to exchange heat with the material to be heated flowing through the heat exchanger 300.

[0041] For example, Figure 1 The left end of the heat exchanger 300 in the perspective view is the clean end, and the heat exchanger 300 enters and flows out of the heat exchange medium through the left end.

[0042] As shown in Figure 3 and Figure 6 , the flange plate 100 is provided with a liquid inlet through hole 110, so that the heat exchange medium enters the heat exchanger 300 and exchanges heat with the material to be heated in the heat exchanger 300.

[0043] As shown in Figure 2 , Figure 3 and Figure 7 , the mounting assembly includes a first connecting piece 210 and a first sealing piece (not shown in the figure), the first connecting piece 210 is used for connecting the liquid inlet pipeline, the first connecting piece 210 is provided with a first through hole 211 for communicating with the liquid inlet pipeline, the first connecting piece 210 is detachably fixed with the flange plate 100 and makes the first through hole 211 communicate with the liquid inlet through hole 110, so that the liquid inlet pipeline communicates with the liquid inlet through hole 110, and the first sealing piece is arranged between the first connecting piece 210 and the flange plate 100.

[0044] The flange structure for the heat exchanger 300, the flange plate 100 is used for fixing with the clean end of the heat exchanger 300, the first connecting piece 210 is detachably fixed with the flange plate 100, and the first through hole 211 communicates with the liquid inlet through hole 110, and the liquid inlet pipeline is connected with the flange plate 100 through the first connecting piece 210, so as to realize the communication between the liquid inlet pipeline and the liquid inlet through hole 110; compared with the traditional welding fixing mode, the liquid inlet pipeline and the flange plate 100 can be installed and communicated with the liquid inlet through hole 110 without welding, and the first sealing piece ensures the sealing performance between the first connecting piece 210 and the flange plate 100, which meets the actual production needs.

[0045] As shown in Figure 7As shown, the first connecting piece 210 is provided with a first through hole 211, when the liquid inlet pipeline is connected with the first connecting piece 210, the lumen of the liquid inlet pipeline is communicated with the first through hole 211, because the first connecting piece 210 is fixed with the flange 100 and the first through hole 211 is communicated with the liquid inlet through hole 110, therefore, the liquid inlet pipeline is also communicated with the liquid inlet through hole 110 through the first through hole 211. During working, the heat exchange medium enters from the liquid inlet pipeline and enters into the heat exchanger 300 through the first through hole 211 and the liquid inlet through hole 110.

[0046] It can be understood that:

[0047] The first connecting piece 210 is equivalent to an intermediate piece, so as to realize the connection of the liquid inlet pipeline with the flange 100 and make the liquid inlet pipeline input the heat exchange medium through the liquid inlet through hole 110 on the flange 100. Because the first connecting piece 210 is detachably fixed with the flange 100, compared with the traditional welding fixing mode, the case that the welding causes thermal deformation and thus the installation precision is poor does not occur.

[0048] In one embodiment, please refer to Figures 2 to 4 , Figure 6 The flange 100 is further provided with a liquid outlet through hole 120, the liquid outlet through hole 120 is arranged in interval with the liquid inlet through hole 110, the installation assembly further comprises a second connecting piece 220 and a second sealing piece (not shown in the figure), the second connecting piece 220 is used for connecting the liquid outlet pipeline, the second connecting piece 220 is provided with a second through hole 221 for communicating with the liquid outlet pipeline, the second connecting piece 220 is detachably fixed with the flange 100 and makes the second through hole 221 communicated with the liquid outlet through hole 120, so that the liquid outlet pipeline is communicated with the liquid outlet through hole 120, the second sealing piece is arranged between the second connecting piece 220 and the flange 100.

[0049] As shown in Figure 1 , the flange 100 is fixed at the clean end of the heat exchanger 300; as shown in Figure 2 , Figure 4 and Figure 6 , the flange 100 is provided with a liquid inlet through hole 110 and a liquid outlet through hole 120, the liquid inlet through hole 110 is used for the entering of the heat exchange medium, and the liquid outlet through hole 120 is used for the flowing out of the heat exchange medium after the heat exchange with the material.

[0050] As shown in Figure 2 , the position of the liquid inlet through hole 110 corresponds to the arrangement of the first connecting piece 210, so as to connect the liquid inlet pipeline, and the position of the liquid outlet through hole 120 corresponds to the arrangement of the second connecting piece 220, so as to connect the liquid outlet pipeline. The heat exchange medium enters into the heat exchanger 300 through the liquid inlet pipeline via the liquid inlet through hole 110, and the heat exchanged heat exchange medium flows out through the liquid outlet through hole 120 via the liquid outlet pipeline.

[0051] In one embodiment, please refer to Figures 1 to 6The setting position of the liquid inlet through hole 110 is higher than that of the liquid outlet through hole 120, the first connecting piece 210 is used for connecting with the first end of the liquid inlet pipeline, and the first connecting piece 210 is arranged obliquely relative to the flange plate 100, so that the second end of the liquid inlet pipeline is higher than the first end.

[0052] As shown in Figure 4 and Figure 5 , the liquid inlet through hole 110 is located at the upper part of the flange plate 100, and the liquid outlet through hole 120 is located at the lower part of the flange plate 100; correspondingly, the first connecting piece 210 is located at the upper part of the flange plate 100, and the second connecting piece 220 is located at the lower part of the flange plate 100. The heat exchange medium enters the heat exchanger 300 from the upper part, and the heat exchanged heat exchange medium flows out from the lower part.

[0053] As shown in the perspective view shown in Figure 4 and Figure 5 , the first connecting piece 210 is arranged obliquely relative to the flange plate 100, and the upper side of the first connecting piece 210 is inclined to one side of the flange plate 100, so that the liquid inlet pipeline connected to the first connecting piece 210 is arranged obliquely, thereby enabling the heat exchange medium in the liquid inlet pipeline to flow spontaneously from high to low, ensuring that the heat exchange medium in the liquid inlet pipeline does not stagnate, ensuring the cleanliness of the system, and reducing the problem of bacterial breeding caused by the existence of stagnant water of the heat exchange medium.

[0054] In one embodiment, please refer to Figure 2 , Figure 3 and Figure 6 , the flange plate 100 is provided with a matching groove 130, the profile of the matching groove 130 matches the profile of the first connecting piece 210, and the first connecting piece 210 is fixed with the flange plate 100 through the matching groove 130.

[0055] As shown in Figure 2 , Figure 3 and Figure 6 , the matching groove 130 is arranged in a substantially triangular shape, and the first connecting piece 210 is also arranged in a substantially triangular shape, so that the first connecting piece 210 can be detachably fixed with the flange plate 100 through the matching groove 130.

[0056] In one embodiment, please refer to Figures 3 to 5 , the first connecting piece 210 is arranged in a plate shape, the bottom surface of the matching groove 130 is arranged obliquely relative to the disc surface of the flange plate 100, and the upper part of the bottom surface of the matching groove 130 is inclined to the direction away from the first connecting piece 210 of the flange plate 100, so that the first connecting piece 210 is arranged obliquely relative to the flange plate 100.

[0057] As shown in Figure 4In the illustrated perspective, the upper portion of the fitting groove 130 is inclined to the right, and the first connecting member 210 that is adapted to the bottom surface of the fitting groove 130 is also inclined to the flange plate 100, so as to incline the liquid inlet pipeline connected to the first connecting member 210, as shown in Figure 5 As shown, the upper portion of the first connecting member 210 is also inclined to the right, and the entire outer surface of the first connecting member 210 is inclined to the disc surface of the flange plate 100.

[0058] In an embodiment, please refer to Figure 4 and Figure 6 The liquid inlet through hole 110 is arranged through the bottom wall of the fitting groove 130, and the flange plate 100 is further provided with a first installation groove 140, which is arranged on the bottom wall of the fitting groove 130 and surrounds the outer periphery of the liquid inlet through hole 110; the first sealing member is a first sealing ring matched with the first installation groove 140, which is pressed between the first connecting member 210 and the flange plate 100, and a part of the first sealing ring is located in the first installation groove 140.

[0059] As shown in Figure 6 , the flange plate 100 is further provided with a first installation groove 140, which surrounds the outer periphery of the liquid inlet through hole 110, so as to install the first sealing ring and realize the sealing cooperation between the flange plate 100 and the first connecting member 210.

[0060] Optionally, as shown in Figure 6 , the first installation groove 140 is a circular groove, and the liquid inlet through hole 110 is a circular hole, and the diameter of the first installation groove 140 is greater than the hole diameter of the liquid inlet through hole 110; and the first sealing ring is a circular sealing ring matched with the first installation groove 140, for example, it can be a circular rubber ring.

[0061] In an embodiment, please refer to Figure 4 and Figure 6 The flange plate 100 is further provided with a second installation groove 150, which surrounds the outer periphery of the liquid outlet through hole 120, and the second sealing member is a second sealing ring matched with the second installation groove 150, which is pressed between the second connecting member 220 and the flange plate 100, and a part of the second sealing ring is located in the second installation groove 150.

[0062] As shown in Figure 4 and Figure 6As shown, the position of the liquid inlet through hole 110 is provided with a matching groove 130 for mounting the first connecting piece 210; and the groove bottom surface of the matching groove 130 is obliquely arranged relative to the disc surface of the flange plate 100, so that the surface of the first connecting piece 210 is obliquely arranged relative to the disc surface of the flange plate 100, thereby enabling the heat exchange medium in the liquid inlet pipeline to spontaneously flow into the heat exchanger 300, avoiding the heat exchange medium to stay in the liquid inlet pipeline. The position of the liquid outlet through hole 120 is not provided with a groove for mounting the second connecting piece 220, and the second connecting piece 220 does not necessarily have to be fixed to the flange plate 100 through the groove.

[0063] As shown in the embodiment shown in the figure, Figure 6 the position of the liquid outlet through hole 120 is provided with a second mounting groove 150, and the second mounting groove 150 surrounds the outer periphery of the liquid outlet through hole 120. The second sealing ring is pressed against the position of the second mounting groove 150 to realize the sealing cooperation between the second connecting piece 220 and the flange plate 100.

[0064] For example, Figure 6 In the embodiment shown in the figure, the liquid outlet through hole 120 is a circular hole, the second mounting groove 150 is a circular groove, the diameter of the second mounting groove 150 is greater than the hole diameter of the liquid outlet through hole 120; and the second sealing ring is a circular sealing ring matched with the second mounting groove 150.

[0065] Alternatively, the groove cross section of the first mounting groove 140 and the groove cross section of the second mounting groove 150 can be semicircular or arc-shaped, so as to be matched with the first sealing ring and the second sealing ring respectively, which will not be described in detail.

[0066] In one embodiment, the mounting assembly further comprises a first fixing member for detachably fixing the first connecting piece 210 to the flange plate 100.

[0067] In one embodiment, the mounting assembly further comprises a second fixing member for detachably fixing the second connecting piece 220 to the flange plate 100.

[0068] As shown in the figure, Figure 3 the first connecting piece 210 is provided with a plurality of first fixing holes, and the flange plate 100 is provided with a first matching hole corresponding to each of the first fixing holes. The first fixing member can be a screw, which can detachably fix the first connecting piece 210 to the flange plate 100 through the first fixing hole and the first matching hole.

[0069] Similarly, as shown in the figure, Figure 3 the second connecting piece 220 is provided with a plurality of second fixing holes, and the flange plate 100 is provided with a second matching hole corresponding to each of the second fixing holes. The second fixing member can be a screw, which can detachably fix the second connecting piece 220 to the flange plate 100 through the second fixing hole and the second matching hole.

[0070] In one embodiment, please refer to Figure 3 and Figure 7 The first connecting piece 210 is a regular polygon plate.

[0071] In one embodiment, please refer to Figure 3 The second connecting piece 220 is a regular polygon plate.

[0072] Optionally, the first connecting piece 210 and the second connecting piece 220 are of the same structure, and both the first connecting piece 210 and the second connecting piece 220 are equilateral triangle plates. In this way, no calibration and inspection of the front and back and position are needed during installation, and the installation is more convenient and less prone to errors.

[0073] In one embodiment, please refer to Figure 2 and Figure 3 The flange plate 100 is a circular plate, and the flange plate 100 is used to be fixed with the heat exchanger 300; the liquid inlet through hole 110 and the liquid outlet through hole 120 are both circular holes.

[0074] Another embodiment provides a liquid treatment device comprising the flange structure for the heat exchanger 300 as described in any one of the above embodiments.

[0075] The liquid treatment device adopts the flange structure for the heat exchanger 300 as described above, so that the first pipeline of the heat exchange medium and the flange plate 100 are installed in a non-welding manner, and the assembly precision and sealing requirements are met, and then the liquid treatment is performed in cooperation with the heat exchanger 300.

[0076] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0077] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0078] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," 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 communication 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 invention according to the specific circumstances.

[0079] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0080] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0081] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0082] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A flange structure for a heat exchanger, characterized by, The application relates to a flange plate and a mounting assembly thereof. The flange plate is provided with an inlet liquid passage; The mounting assembly comprises a first connecting piece and a first sealing piece, the first connecting piece is used for connecting an inlet liquid pipeline, the first connecting piece is provided with a first passage for communicating with the inlet liquid pipeline, the first connecting piece is detachably fixed with the flange plate and makes the first passage communicate with the inlet liquid passage, so that the inlet liquid pipeline communicates with the inlet liquid passage, and the first sealing piece is arranged between the first connecting piece and the flange plate; The flange plate is also provided with an outlet liquid passage, the outlet liquid passage is arranged at intervals with the inlet liquid passage, the mounting assembly further comprises a second connecting piece and a second sealing piece, the second connecting piece is used for connecting an outlet liquid pipeline, the second connecting piece is provided with a second passage for communicating with the outlet liquid pipeline, the second connecting piece is detachably fixed with the flange plate and makes the second passage communicate with the outlet liquid passage, so that the outlet liquid pipeline communicates with the outlet liquid passage, and the second sealing piece is arranged between the second connecting piece and the flange plate; The arrangement position of the inlet liquid passage is higher than that of the outlet liquid passage, the first connecting piece is used for connecting a first end of the inlet liquid pipeline, and the first connecting piece is arranged obliquely relative to the flange plate, so that a second end of the inlet liquid pipeline is higher than the first end; The flange plate is provided with a matching groove, the profile of the matching groove matches that of the first connecting piece, and the first connecting piece is fixed with the flange plate through the matching groove; The first connecting piece is arranged in a plate shape, the bottom surface of the matching groove is arranged obliquely relative to the disc surface of the flange plate, and the upper portion of the bottom surface of the matching groove is inclined towards the direction away from the first connecting piece of the flange plate, so that the first connecting piece is arranged obliquely relative to the flange plate; The inlet liquid passage passes through the bottom wall of the matching groove, the flange plate is further provided with a first mounting groove, the first mounting groove is arranged on the bottom wall of the matching groove and surrounds the outer periphery of the inlet liquid passage, the first sealing piece is a first sealing ring matched with the first mounting groove, a part of the first sealing ring is located in the first mounting groove, and the first sealing ring is pressed between the first connecting piece and the flange plate; or / and, the flange plate is further provided with a second mounting groove, the second mounting groove surrounds the outer periphery of the outlet liquid passage, the second sealing piece is a second sealing ring matched with the second mounting groove, a part of the second sealing ring is located in the second mounting groove, and the second sealing ring is pressed between the second connecting piece and the flange plate.

2. The flange structure for a heat exchanger according to claim 1, wherein The position of the inlet liquid passage corresponds to the arrangement of the first connecting piece.

3. The flange structure for a heat exchanger according to claim 1, wherein The position of the outlet liquid passage corresponds to the arrangement of the second connecting piece.

4. The flange structure for a heat exchanger according to claim 1, wherein The first mounting groove is a circular groove, the inlet liquid passage is a circular hole, and the diameter of the first mounting groove is larger than the hole diameter of the inlet liquid passage.

5. The flange structure for a heat exchanger according to claim 4, wherein The first sealing ring is a circular sealing ring matched with the first mounting groove.

6. The flange structure for a heat exchanger according to claim 1, wherein The second mounting groove is a circular groove, the outlet liquid passage is a circular hole, and the diameter of the second mounting groove is larger than the hole diameter of the outlet liquid passage.

7. The flange structure for a heat exchanger according to any one of claims 2 to 6, characterized in that, The mounting assembly further comprises a first fixing member for detachably fixing the first connecting member to the flange plate. Or / and, the mounting assembly further comprises a second fixing member for detachably fixing the second connecting member to the flange plate.

8. The flange structure for a heat exchanger according to any one of claims 2 to 6, characterized in that, The first connecting member is a regular polygon plate; or / and, the second connecting member is a regular polygon plate.

9. The flange structure for a heat exchanger according to any one of claims 2 to 6, characterized in that, The flange plate is a disc for fixing with a heat exchanger; the liquid inlet through hole and the liquid outlet through hole are both circular holes.

10. A liquid treatment apparatus, characterised in that, A flange structure for a heat exchanger, comprising any one of claims 1-9.

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