Double-wall plate type heat exchanger

Abstract

The utility model discloses a double-wall plate type heat exchanger which comprises a main body assembly, a heat exchanger assembly and a heat exchanger assembly. The safety assembly comprises a threaded rod, a mounting hole, a sealing disc, a sealing ring and a filtering frame; the threaded rod penetrates through the upper surface of the water inlet pipe, the mounting hole is formed in the upper surface of the water inlet pipe, the sealing disc is fixed to the lower end of the outer surface of the threaded rod, the middle of the outer surface of the threaded rod is sleeved with the sealing ring, the filtering frame is fixed to the middle of the water inlet pipe, and a mounting groove is formed in the upper surface of the filtering frame; the upper surface of the filter plate is fixedly connected with a handle. The heat exchanger has the advantages that the heat exchanger does not need to be opened under the condition that other people do not know the heat exchanger in the whole process, possible dangerous sources are effectively cut off through matched use of the threaded rod and the sealing disc, and it is ensured that the risk to operators can be reduced to the maximum extent even when necessary maintenance and replacement work are carried out.

Description

Technical Field

[0001] The utility model relates to the technical field of plate heat exchangers, in particular to a double-wall plate heat exchanger. Background Art

[0002] A double-walled plate heat exchanger is a specially designed heat exchanger with a double-walled plate structure that effectively prevents fluid leakage and mixing. Inner and outer sealing cavities are located between each heat exchanger plate, further enhancing sealing performance. This design ensures that even if a leak occurs during the heat exchange process, the fluids will not mix, thus preventing contamination or other harmful reactions. Furthermore, the advantage of the double-walled plate heat exchanger lies in its ingenious structure, which avoids the difficult maintenance issues of brazed plate heat exchangers, saving maintenance costs, while also reducing the risk of leakage associated with purely removable plate heat exchangers.

[0003] After searching, Chinese patent authorization announcement No. CN220288331U discloses a double-wall plate heat exchanger, including a front end plate, a rear end plate, a heat exchange plate assembly and a support, a side surface of the front end plate is provided with a hot fluid inlet pipe and a cold fluid inlet pipe, one end of each of the hot fluid inlet pipe and the cold fluid inlet pipe is equipped with a regulating pipe, and a filter box and a dosing pipe are installed on the regulating pipe; the utility model filters out large particles of impurities in the fluid medium through the filter box at the inlet, prevents large particles of impurities from entering the heat exchange plate assembly, avoids the particle impurities from clogging the plate channel of the heat exchange plate assembly, avoids the equipment from reducing the heat exchange capacity due to blockage, ensures continuous production, and improves economic benefits, regularly adds descaling liquid through the dosing pipe, the liquid is mixed with the fluid medium, and enters the heat exchange plate assembly, completes the descaling of the heat exchange plate assembly during the flow process, eliminates the dirt attached to the inside of the heat exchange plate assembly, avoids the accumulation of dirt inside the heat exchange plate assembly, and ensures the heat exchange efficiency of the heat exchanger.

[0004] The heat exchanger filters the incoming liquid through a filter element, but the machine needs to be shut down when the filter element is replaced. However, if someone is unaware, the heat exchanger may be opened, and hot water will flow into the pipe. The staff who replaces the filter element may be scalded. Therefore, it is necessary to provide a heat exchanger that can avoid the above safety hazards to ensure the safety of maintenance. Utility Model Content

[0005] The purpose of the present utility model is to provide a double-walled plate heat exchanger to solve the problem raised in the above-mentioned background technology. The heat exchanger filters the incoming liquid through a filter element, but the machine needs to be shut down when replacing the filter element. However, if someone is unaware of this, the heat exchanger may be opened, hot water will flow into the pipe, and the staff who replaces the filter element may be scalded.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] The utility model is a double-wall plate heat exchanger, comprising:

[0008] A main body component, the main body component including a water inlet pipe;

[0009] A safety component comprising a threaded rod, a mounting hole, a sealing disc, a sealing ring, and a filter frame;

[0010] The threaded rod passes through the upper surface of the water inlet pipe, the mounting hole is opened on the upper surface of the water inlet pipe, the sealing disk is fixed on the lower end of the outer surface of the threaded rod, the sealing ring is fitted on the middle of the outer surface of the threaded rod, and the filter frame is fixed on the middle of the water inlet pipe.

[0011] Furthermore, a water inlet is provided on one side of the outer surface of the water inlet pipe, a first fixed plate is fixed on one side of the outer surface of the water inlet, a heat exchange plate is installed on one side of the outer surface of the first fixed plate, a movable plate is installed on one side of the outer surface of the heat exchange plate, a connecting rod passes through the first fixed plate and the movable plate, and a second fixed plate is fixed on one side of the movable plate.

[0012] Furthermore, a mounting groove is provided on the upper surface of the filter frame, a filter plate is installed inside the mounting groove, a handle is fixedly connected to the upper surface of the filter plate, and a fixing frame is fixed to one side of the upper surface of the filter plate.

[0013] Furthermore, the threaded rod passes through the mounting hole, and the sealing disk is rotatably mounted inside the water inlet pipe, the filter plate is mounted inside the filter frame, and the sealing ring contacts the outer surface of the water inlet pipe.

[0014] Furthermore, it also includes a fixing component;

[0015] The fixing assembly includes an electric push rod, a support platform, a limiting hole, and a suction cup;

[0016] The electric push rod is installed on one side of the outer surface of the second fixed plate, the support platform is fixed on the lower surface of the electric push rod, the limiting hole is opened on one side of the outer surface of the second fixed plate, and the suction cup is connected to the output end of the electric push rod.

[0017] Furthermore, the suction cup contacts one side of the outer surface of the movable plate, and two electric push rods are provided and respectively installed on the outer surface of the second fixed plate.

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] 1. The utility model has provided a threaded rod, a mounting hole, a sealing disk, a sealing ring, a filter frame, a mounting groove, a filter plate, a handle and a fixing bracket. When replacing the filter plate, the staff can directly hold the threaded rod and rotate the threaded rod. The threaded rod synchronously drives the sealing disk to rotate. When the sealing disk rotates, the water inlet pipe is closed. At this time, the staff can directly open the fixing bracket, hold the handle, take the filter plate out of the filter frame, and replace it. During the whole process, there is no need to worry about other people opening the heat exchanger without knowing it. The coordinated use of the threaded rod and the sealing disk has effectively isolated possible sources of danger, ensuring that even when necessary maintenance and replacement work is carried out, the risks to the operator can be minimized.

[0020] 2. Based on the first beneficial effect, by setting the electric push rod, support platform, limit hole and suction cup, when installing the movable plate, the staff starts the electric push rod through the external control module, and the electric push rod drives the suction cup to perform telescopic movement. The suction cup contacts the movable plate and is squeezed and fixed by the electric push rod, which improves the convenience of installing the connecting rod. The electric push rod drives the suction cup to perform telescopic movement, thereby realizing the precise installation and fixation of the movable plate. This not only improves the assembly efficiency and reduces the burden on the staff, but also ensures the high quality and high reliability of the assembly process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 This is a schematic diagram of the main components of the utility model;

[0023] Figure 2 This is a schematic diagram of the safety component of the utility model;

[0024] Figure 3 This is an exploded view of the safety component of the present invention;

[0025] Figure 4 This is a structural diagram of the fixing component of the utility model.

[0026] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0027] 11. First fixed plate; 12. Water inlet; 13. Water inlet pipe; 14. Movable plate; 15. Heat exchange fin; 16. Connecting rod; 17. Second fixed plate;

[0028] 21. Threaded rod; 22. Mounting hole; 23. Sealing disc; 24. Sealing ring; 25. Filter frame; 26. Mounting slot; 27. Filter plate; 28. Handle; 29. Fixing bracket;

[0029] 31. Electric push rod; 32. Support platform; 33. Limit hole; 34. Suction cup. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0031] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0032] Next, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, cross-sectional views of device structures may be partially enlarged and not to scale when describing the embodiments of the present invention. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0033] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0034] See also Figure 1-Figure 3 As shown, this embodiment is a double-wall plate heat exchanger, comprising:

[0035] The main body assembly includes a water inlet pipe 13;

[0036] A water inlet 12 is formed on one side of the outer surface of the water inlet pipe 13. A first fixed plate 11 is fixed to one side of the outer surface of the water inlet 12. A heat exchange fin 15 is mounted on one side of the outer surface of the first fixed plate 11. A movable plate 14 is mounted on one side of the outer surface of the heat exchange fin 15. A connecting rod 16 extends through the first fixed plate 11 and the movable plate 14. A second fixed plate 17 is fixed to one side of the movable plate 14.

[0037] The water inlet pipe 13 is responsible for introducing water into the device, and the water inlet 12 is provided on one side of the outer surface of the water inlet pipe. This design is conducive to guiding and controlling the water flow;

[0038] Safety component, the safety component includes a threaded rod 21, a mounting hole 22, a sealing disc 23, a sealing ring 24, and a filter frame 25;

[0039] The threaded rod 21 passes through the upper surface of the water inlet pipe 13, the mounting hole 22 is opened on the upper surface of the water inlet pipe 13, the sealing plate 23 is fixed to the lower end of the outer surface of the threaded rod 21, the sealing ring 24 is fitted on the middle part of the outer surface of the threaded rod 21, and the filter frame 25 is fixed to the middle part of the water inlet pipe 13;

[0040] The threaded rod 21 passes through the upper surface of the water inlet pipe 13. It is inserted from above and may penetrate deep into the interior of the water inlet pipe 13. The sealing disk 23 helps to close any gap at the connection between the threaded rod 21 and the water inlet pipe 13, thereby preventing fluid leakage.

[0041] The upper surface of the filter frame 25 is provided with a mounting groove 26, and a filter plate 27 is mounted inside the mounting groove 26. A handle 28 is fixedly connected to the upper surface of the filter plate 27, and a fixing frame 29 is fixed to one side of the upper surface of the filter plate 27.

[0042] The filter frame 25 is fixed to the middle of the water inlet pipe 13. Its main function is to intercept impurities and particles that enter the device with the water flow, protecting the interior of the device from damage by these foreign substances. The filter plate 27 is installed in the installation groove 26 on the upper surface of the filter frame 25, which facilitates the regular replacement and cleaning of the filter plate 27 to maintain the continuity and efficiency of the filtering function.

[0043] Working principle:

[0044] When replacing the filter plate 27;

[0045] First, the staff can directly hold the threaded rod 21 and rotate the threaded rod 21, and the threaded rod 21 will simultaneously drive the sealing disk 23 to rotate;

[0046] At this time, when the sealing disk 23 rotates, the water inlet pipe 13 is closed. At this time, the staff can directly open the fixing frame 29, then hold the handle 28, and take out the filter plate 27 from the filter frame 25 for replacement;

[0047] During the whole process, there is no need to worry about others opening the heat exchanger without knowing it. The combined use of the threaded rod 21 and the sealing disk 23 has effectively isolated possible sources of danger.

[0048] This step ensures that even when necessary maintenance and replacement work is carried out, risks to operating personnel are minimized.

[0049] See also Figure 4 As shown, this embodiment is based on the above embodiment 1 and also includes:

[0050] Fixing components;

[0051] The fixing assembly includes an electric push rod 31, a support platform 32, a limiting hole 33, and a suction cup 34;

[0052] The electric push rod 31 is mounted on one side of the outer surface of the second fixing plate 17, the support 32 is fixed to the lower surface of the electric push rod 31, the limiting hole 33 is opened on one side of the outer surface of the second fixing plate 17, and the suction cup 34 is connected to the output end of the electric push rod 31;

[0053] The electric push rod 31 can effectively support and control the movable plate 14. The support platform 32 is fixed to the lower surface of the electric push rod 31. It provides a stable base for the electric push rod 31, ensuring that the electric push rod 31 can operate on a stable platform. The suction cup 34 is connected to the output end of the electric push rod 31. The use of the suction cup 34 can increase the control force of the movable plate 14.

[0054] Working principle:

[0055] When installing the movable plate 14;

[0056] First, the staff activates the electric push rod 31 through the external control module, and the electric push rod 31 drives the suction cup 34 to perform telescopic movement;

[0057] Then, the suction cup 34 contacts the movable plate 14 and the movable plate 14 is squeezed and fixed by the electric push rod 31, thereby facilitating the installation of the connecting rod 16.

[0058] The electric push rod 31 drives the suction cup 34 to perform telescopic movement, thereby achieving a method of accurately installing and fixing the movable plate 14;

[0059] This step not only improves assembly efficiency and reduces the burden on workers, but also ensures high quality and reliability of the assembly process.

[0060] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0061] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A double-wall plate heat exchanger, characterized in that: include: A main body component, the main body component comprising a water inlet pipe (13); A safety component, the safety component comprising a threaded rod (21), a mounting hole (22), a sealing disc (23), a sealing ring (24), and a filter frame (25); The threaded rod (21) passes through the upper surface of the water inlet pipe (13), the mounting hole (22) is opened on the upper surface of the water inlet pipe (13), the sealing disc (23) is fixed to the lower end of the outer surface of the threaded rod (21), the sealing ring (24) is fitted on the middle part of the outer surface of the threaded rod (21), and the filter frame (25) is fixed to the middle part of the water inlet pipe (13).

2. The double-wall plate heat exchanger according to claim 1, characterized in that: A water inlet (12) is provided on one side of the outer surface of the water inlet pipe (13), a first fixed plate (11) is fixed on one side of the outer surface of the water inlet (12), a heat exchange plate (15) is installed on one side of the outer surface of the first fixed plate (11), a movable plate (14) is installed on one side of the outer surface of the heat exchange plate (15), a connecting rod (16) passes through the first fixed plate (11) and the movable plate (14), and a second fixed plate (17) is fixed on one side of the movable plate (14).

3. The double-wall plate heat exchanger according to claim 1, characterized in that: The upper surface of the filter frame (25) is provided with a mounting groove (26), a filter plate (27) is installed inside the mounting groove (26), a handle (28) is fixedly connected to the upper surface of the filter plate (27), and a fixing frame (29) is fixed to one side of the upper surface of the filter plate (27).

4. The double-wall plate heat exchanger according to claim 3, characterized in that: The threaded rod (21) passes through the mounting hole (22), and the sealing disc (23) is rotatably mounted inside the water inlet pipe (13). The filter plate (27) is mounted inside the filter frame (25), and the sealing ring (24) contacts the outer surface of the water inlet pipe (13).

5. The double-wall plate heat exchanger according to claim 2, characterized in that: Also included are fixing components; The fixing assembly includes an electric push rod (31), a support platform (32), a limiting hole (33), and a suction cup (34); The electric push rod (31) is mounted on one side of the outer surface of the second fixed plate (17), the support platform (32) is fixed on the lower surface of the electric push rod (31), the limiting hole (33) is opened on one side of the outer surface of the second fixed plate (17), and the suction cup (34) is connected to the output end of the electric push rod (31).

6. The double-wall plate heat exchanger according to claim 5, characterized in that: The suction cup (34) contacts one side of the outer surface of the movable plate (14), and two electric push rods (31) are provided and respectively mounted on the outer surface of the second fixed plate (17).

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