Box type heat exchange unit

Abstract

The utility model relates to the technical field of box type heat exchange units, and discloses a box type heat exchange unit which comprises a box body, a heat exchanger is fixedly connected in the box body, a heat source water inlet pipe is communicated with the upper middle portion of the front side of the left end of the heat exchanger, and the left end of the heat source water inlet pipe penetrates through the box body. The middle lower portion of the front side of the right end of the heat exchanger communicates with a heat source water outlet pipe, the right end of the heat source water outlet pipe penetrates through the box body, the middle lower portion of the rear side of the left end of the heat exchanger communicates with a cold source water inlet pipe, the left end of the cold source water inlet pipe penetrates through the box body, and the middle upper portion of the rear side of the right end of the heat exchanger communicates with a cold source water outlet pipe. According to the utility model, when cold water and hot water enter the heat exchanger for heat exchange work, water flow passes through the baffle from the water pipe and then enters the filter cartridge, so that the buckles are separated from the corresponding clamping grooves, and the filter cartridge can be quickly taken out of the pipeline, so that the filter cartridge is convenient to clean, and the passing of the water flow is not influenced by the blockage of the filter screen.

Description

Technical Field

[0001] This utility model relates to the technical field of box-type heat exchanger units, and in particular to a box-type heat exchanger unit. Background Technology

[0002] A heat exchanger is an integrated device used to achieve heat exchange. It is widely used in industry, construction and energy fields. It transfers heat from one medium to another through heat conduction or convection, thereby achieving the functions of heating, cooling and waste heat recovery.

[0003] With the acceleration of industrialization and urbanization, traditional heat exchange systems require the on-site assembly of multiple components, which is time-consuming and costly, lacks integrated control, has large heat loss, low operating efficiency, and the decentralized layout has high site requirements, making it difficult to implement, especially in urban or factory space-constrained scenarios. At this time, a box-type heat exchange unit is needed, which can highly integrate components in a box frame, greatly simplifying the installation and operation and maintenance process.

[0004] Currently, box-type heat exchanger units on the market generally consist of a frame and shell, a heat exchanger, and a piping network. The frame and shell provide mechanical support and protection, the heat exchanger is the core component for heat exchange, and there are pre-installed heat source and cold source pipes. Due to poor water quality or the presence of particulate matter during heat exchange, the heat exchanger flow channels are easily blocked, reducing heat transfer efficiency. To solve the above problems, filters are usually installed to filter impurities and avoid blockage of the heat exchanger flow channels. However, in actual use, since the filters are inside the pipes, they are inconvenient to clean. After long-term use, the filters become clogged, affecting water flow and failing to meet the user's needs. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a box-type heat exchanger unit, which aims to improve the problem that impurities filtered by the filter screen are difficult to clean in the heat exchange process of the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a box-type heat exchanger unit, comprising a box body, wherein a heat exchanger is fixedly connected inside the box body; a heat source inlet pipe is connected to the upper middle part of the left front side of the heat exchanger, and the left end of the heat source inlet pipe penetrates the box body; a heat source outlet pipe is connected to the lower middle part of the right front side of the heat exchanger, and the right end of the heat source outlet pipe penetrates the box body; a cold source inlet pipe is connected to the lower middle part of the left rear side of the heat exchanger, and the left end of the cold source inlet pipe penetrates the box body; a cold source outlet pipe is connected to the upper middle part of the right rear side of the heat exchanger, and the right end of the cold source outlet pipe penetrates the box body; baffles are fixedly connected to the middle part of the inner walls of both the heat source inlet pipe and the cold source inlet pipe; the heat source inlet pipe and the cold source inlet pipe... The outer wall of each device has a connecting cylinder at its bottom center. The upper and lower sides of the right inner sides of both connecting cylinders have slots. A fixing block is located on the right inner side of each connecting cylinder. A sliding groove is located on the right side of each fixing block. Buckles are slidably connected to the upper and lower inner sides of each sliding groove. A spring is located in the middle of the inner side of each sliding groove. The upper and lower ends of each spring are fixedly connected to corresponding buckles. Multiple buckles engage with corresponding slots. A filter cylinder is fixedly connected to the left end of each fixing block. The left end of each filter cylinder is slidably connected to a corresponding baffle. A support mechanism is located at the bottom of the housing. This support mechanism facilitates the support and fixation of the device when it does not need to be moved.

[0007] As a further description of the above technical solution:

[0008] The support mechanism includes an inner cavity located at the bottom of the housing. Wheels are fixedly connected to the four corners of the bottom of the housing. A motor is fixedly connected to the lower right side of the housing. The output end of the motor passes through the housing and is fixedly connected to a bidirectional threaded rod. Slider blocks are threaded to the left and right sides of the outer wall of the bidirectional threaded rod. Linkage rods are rotatably connected to the bottom front and rear sides of the two sliders. Connecting blocks are rotatably connected to the bottom ends of multiple linkage rods. The bottom of multiple connecting blocks is fixedly connected to the same base plate. Support legs are fixedly connected to the four corners of the bottom of the base plate.

[0009] As a further description of the above technical solution:

[0010] The front of the box is provided with a door, and the front wall of the door is fixedly connected to the upper and lower sides at one end away from each other with hinges. The door is rotatably connected to the box through the hinges.

[0011] As a further description of the above technical solution:

[0012] Handles are fixedly connected to the left and right sides of the middle of the front wall of the box door, and protective sleeves are fixedly connected to the outside of the handles.

[0013] As a further description of the above technical solution:

[0014] The upper middle part of both the left and right sides of the box is provided with windows, and ventilation fans are fixedly connected to the adjacent side of each of the two windows.

[0015] As a further description of the above technical solution:

[0016] The heat source inlet pipe and the heat source outlet pipe are both fixedly connected to a first flange at their ends away from each other, and the cold source inlet pipe and the cold source outlet pipe are both fixedly connected to a second flange at their ends away from each other. A sealing ring is fixedly connected to the right side of the outer wall of the filter cylinder.

[0017] As a further description of the above technical solution:

[0018] A limiting groove is provided on the top inner side of the inner cavity, and the tops of the two sliders are slidably connected inside the limiting groove.

[0019] As a further description of the above technical solution:

[0020] Each of the support legs has a pad fixedly connected to its bottom end, and the outer diameter of the two baffles matches the inner diameter of the heat source water inlet pipe and the cold source water inlet pipe, respectively.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, when cold water and hot water enter the heat exchanger for heat exchange, the water flows from the water pipe through the baffle and then into the filter cartridge. After filtering impurities in the water into the filter cartridge, the water continues to enter the heat exchanger from the water pipe. When the filter cartridge needs to be cleaned, the clips on both sides are squeezed to disengage from the corresponding slots, allowing the filter cartridge to be quickly removed from the pipe for easy cleaning. This prevents the water flow from being affected by filter screen blockage and meets the needs of users.

[0023] 2. In this utility model, the starting motor drives the sliders on both sides of the bidirectional threaded rod to move in opposite directions along the slide groove, thereby driving the linkage rod to rotate. The linkage rod then pushes the base plate downward, causing the support legs to be released downward. The box body, which was previously supported by wheels, is now supported by the support legs, thus stabilizing the device. This allows for flexible changes in usage as needed, improving the applicability of the device. Attached Figure Description

[0024] Figure 1 This is a perspective view of a box-type heat exchanger unit proposed in this utility model;

[0025] Figure 2 This is a structural cross-sectional view of a box-type heat exchanger unit proposed in this utility model;

[0026] Figure 3 This is a cross-sectional view of the heat source water inlet pipe structure of a box-type heat exchanger unit proposed in this utility model;

[0027] Figure 4 This is a partial structural cross-sectional view of a box-type heat exchanger unit proposed in this utility model;

[0028] Figure 5 This is a partial structural exploded view of a box-type heat exchanger unit proposed in this utility model;

[0029] Figure 6 This is a cross-sectional view of the box structure of a box-type heat exchanger unit proposed in this utility model.

[0030] Legend:

[0031] 1. Housing; 2. Support mechanism; 201. Inner cavity; 202. Motor; 203. Bidirectional threaded rod; 204. Slider; 205. Linkage rod; 206. Connecting block; 207. Base plate; 208. Support leg; 209. Wheel; 3. Heat exchanger; 4. Heat source inlet pipe; 5. Heat source outlet pipe; 6. Cold source inlet pipe; 7. Cold source outlet pipe; 8. Baffle; 9. Filter cartridge; 10. Connecting cylinder; 11. Slide groove; 12. Buckle; 13. Spring; 14. Slot; 15. Fixing block; 16. First flange; 17. Door; 18. Hinge; 19. Handle; 20. Sheath; 21. Window; 22. Exhaust fan; 23. Sealing ring; 24. Limiting groove; 25. Gasket; 26. Second flange. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figure 2 , Figure 3 and Figure 5 One embodiment provided by this utility model:

[0034] A box-type heat exchanger unit includes a housing 1. A heat exchanger 3 is fixedly connected inside the housing 1. A heat source inlet pipe 4 is connected to the upper middle part of the front left side of the heat exchanger 3. Hot water enters the heat exchanger 3 through the heat source inlet pipe 4. The left end of the heat source inlet pipe 4 penetrates the housing 1. A heat source outlet pipe 5 is connected to the lower middle part of the front right side of the heat exchanger 3. Hot water that has undergone heat exchange is discharged through the heat source outlet pipe 5. The right end of the heat source outlet pipe 5 penetrates the housing 1. A cold source inlet pipe is connected to the lower middle part of the rear left side of the heat exchanger 3. Water pipe 6, the left end of the cold source inlet pipe 6 passes through the housing 1, and cold water enters the heat exchanger 3 through the cold source inlet pipe 6. The upper right rear side of the heat exchanger 3 is connected to the cold source outlet pipe 7, the right end of the cold source outlet pipe 7 passes through the housing 1. The inner walls of the heat source inlet pipe 4 and the cold source inlet pipe 6 are both fixedly connected to baffles 8 to block the flow of water. The lower middle of the outer walls of the heat source inlet pipe 4 and the cold source inlet pipe 6 are both connected to connecting cylinders 10. The upper and lower right sides of the inner sides of the two connecting cylinders 10 are both provided with... The slot 14 has a fixing block 15 on the right side of the inside of each of the two connecting cylinders 10. The right end of each fixing block 15 has a sliding groove 11. The upper and lower sides of the two sliding grooves 11 are slidably connected to buckles 12. The buckles 12 slide through the sliding grooves 11. The middle of the inner side of each of the two sliding grooves 11 has a spring 13. The upper and lower ends of the two springs 13 are respectively fixedly connected to the corresponding buckles 12. The springs 13 can reset the buckles 12. Multiple buckles 12 are respectively engaged with the corresponding slots 14 and can be used to connect the fixing blocks 15. The left end of each of the two fixing blocks 15 is fixedly connected to a filter cylinder 9 to filter impurities in the water. The left end of each of the two filter cylinders 9 is slidably connected to the corresponding baffle 8. The heat source inlet pipe 4 and the heat source outlet pipe 5 are fixedly connected to a first flange 16 at the opposite end, which can be easily connected to other pipes. The cold source inlet pipe 6 and the cold source outlet pipe 7 are fixedly connected to a second flange 26 at the opposite end. The right side of the outer wall of the filter cylinder 9 is fixedly connected to a sealing ring 23.

[0035] Specifically, during the heat exchange process, cold water and hot water are injected into the heat exchanger 3 and enter the filter cylinder 9 through the baffle 8 in their respective water pipes. Impurities are then intercepted and retained in the filter cylinder 9, while the purified water continues to enter the heat exchanger 3 through the filter cylinder 9 to participate in heat exchange. When the filter cylinder 9 needs to be cleaned, the buckles 12 on both sides of the right end of the filter cylinder 9 are squeezed to bring the buckles 12 closer together. At the same time, the spring 13 contracts, causing the buckles 12 to disengage from the slots 14 on both sides of the connecting cylinder 10. This makes the filter cylinder 9 unsecured, easy to remove for cleaning, and avoids filter screen blockage, thus ensuring that the water flow is not affected. The sealing ring 23 on the outer wall of the filter cylinder 9 ensures that there is no water leakage at the connection between the filter cylinder 9 and the connecting cylinder 10. The first flange 16 and the second flange 26 on both sides of the pipe facilitate connection with other pipes.

[0036] Reference Figure 2 and Figure 6The support mechanism 2 includes an inner cavity 201, which is located at the bottom of the housing 1. Wheels 209 are fixedly connected to the four corners of the bottom of the housing 1 for easy movement of the device. A motor 202 is fixedly connected to the lower right side of the housing 1. The output end of the motor 202 passes through the housing 1 and is fixedly connected to a bidirectional threaded rod 203. The motor 202 can drive the bidirectional threaded rod 203 to rotate. Slider blocks 204 are threadedly connected to the left and right sides of the outer wall of the bidirectional threaded rod 203, and the sliders 204 can move along the bidirectional threaded rod 203. Both sliders 204 are rotatably connected to the front and rear sides of their bottoms with linkage rods 205. The bottom ends of multiple linkage rods 205 are rotatably connected to connecting blocks 206. The linkage rods 205 rotate between the sliders 204 and the connecting blocks 206. The bottoms of multiple connecting blocks 206 are all fixedly connected to the same base plate 207. The four corners of the bottom of the base plate 207 are all fixedly connected to support legs 208 to support the box 1. The inner top of the inner side of the cavity 201 is provided with a limiting groove 24. The tops of the two sliders 204 are slidably connected inside the limiting groove 24.

[0037] Specifically, when the device does not need to move, the bidirectional threaded rod 203 can be driven to rotate by starting the motor 202. As the bidirectional threaded rod 203 rotates, the sliders 204 on the left and right sides will move along the sliding limit groove 24 to both sides of the bidirectional threaded rod 203. The linkage rod 205 is thus pushed, which in turn pushes the connecting block 206 and the base plate 207 to move downward together. The descent of the base plate 207 causes the support leg 208 to unfold outward from the inner cavity 201. The housing 1 changes from being supported by the wheel 209 to being supported by the support leg 208. When the device does not need to move, it can easily achieve support and stability, and at the same time, the usage mode can be flexibly changed according to the needs.

[0038] Reference Figure 1 and Figure 2 The front side of the box body 1 is provided with a box door 17 for easy inspection of the internal structure. The upper and lower sides of the front wall of the box door 17 are fixedly connected with hinges 18. The box door 17 is rotatably connected to the box body 1 through the hinges 18. The left and right sides of the middle of the front wall of the box door 17 are fixedly connected with handles 19 for opening the box door 17. The outer side of the handles 19 is fixedly connected with a protective sleeve 20.

[0039] Specifically, pulling the handles 19 on both sides allows the corresponding cabinet doors 17 to rotate with the cabinet body 1 via the connected hinges 18, thereby opening the cabinet doors 17 on both sides for easy inspection or repair of the interior. The protective sleeve 20 prevents the hand from slipping when turning the handles 19, thus providing an anti-slip function.

[0040] Reference Figure 2 , Figure 3 and Figure 6The upper middle part of the left and right sides of the box 1 is provided with windows 21. Each side of the two windows 21 is fixedly connected with a ventilation fan 22 to dissipate heat inside. The bottom of the multiple support legs 208 is fixedly connected with a pad 25 to increase the contact area between the support legs 208 and the ground. The outer diameter of the two baffles 8 is matched with the inner diameter of the heat source water inlet pipe 4 and the cold source water inlet pipe 6, respectively.

[0041] Specifically, airflow enters the housing 1 through window 21, while ventilation fan 22 accelerates the heat dissipation efficiency inside housing 1 to prevent the temperature inside housing 1 from becoming too high, reducing the temperature gradient of heat exchanger 3 and decreasing heat transfer efficiency. Gasket 25 increases the contact area between support leg 208 and the ground, making housing 1 more stable, and baffle 8 ensures that all water flows into filter cartridge 9 for filtration.

[0042] Working principle: During the heat exchange process, when cold water and hot water are injected into the heat exchanger 3, they enter the filter cylinder 9 through the baffle 8 in the corresponding water pipes. Impurities are then intercepted and remain in the filter cylinder 9, preventing them from entering the heat exchanger 3 and clogging the flow channels. Clean water continues to enter the heat exchanger 3 through the filter cylinder 9 to participate in the heat exchange. When it is necessary to clean the impurities in the filter cylinder 9, the buckles 12 on both sides of the right end of the filter cylinder 9 are squeezed to bring the buckles 12 closer together. At the same time, the spring 13 contracts, and then the buckles 12 disengage from the slots 14 on both sides of the connecting cylinder 10, so that the filter cylinder 9 is no longer fixed and can be removed from the pipe for easy cleaning. The filter screen will not block the water flow.

[0043] Furthermore, when the device does not need to be moved, the starting motor 202 drives the bidirectional threaded rod 203 to rotate. When the bidirectional threaded rod 203 rotates, it drives the sliders 204 on the left and right sides to move along the sliding limit groove 24 to both sides of the bidirectional threaded rod 203. The linkage rod 205 will then be pushed, pushing the connecting block 206 and the base plate 207 to move downward. When the base plate 207 moves downward, the support leg 208 is released outward from the inner cavity 201. The housing 1 is then changed from being supported by the wheel 209 to being supported by the support leg 208. This allows the device to be conveniently supported and fixed when there is no need to move, and the usage mode can be flexibly changed as needed, improving the applicability of the device.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A box-type heat exchanger unit, comprising a box body (1), characterized in that: A heat exchanger (3) is fixedly connected inside the housing (1). A heat source inlet pipe (4) is connected to the upper middle part of the front left side of the heat exchanger (3). The left end of the heat source inlet pipe (4) penetrates the housing (1). A heat source outlet pipe (5) is connected to the lower middle part of the front right side of the heat exchanger (3). The right end of the heat source outlet pipe (5) penetrates the housing (1). A cold source inlet pipe (6) is connected to the lower middle part of the rear left side of the heat exchanger (3). The left end of the cold source inlet pipe (6) penetrates the housing (1), and the upper right rear side of the heat exchanger (3) is connected to the cold source outlet pipe (7). The right end of the cold source outlet pipe (7) penetrates the housing (1). Baffles (8) are fixedly connected to the middle of the inner walls of both the heat source inlet pipe (4) and the cold source inlet pipe (6). Connecting cylinders (10) are connected to the bottom of the middle of the outer walls of both the heat source inlet pipe (4) and the cold source inlet pipe (6). (10) has slots (14) on the upper and lower sides of the inner right end. The two connecting cylinders (10) have fixing blocks (15) on the inner right side. The two fixing blocks (15) have sliding grooves (11) on the right end. The two sliding grooves (11) have buckles (12) slidably connected to the upper and lower sides of the inner side. The two sliding grooves (11) have springs (13) in the middle of the inner side. The upper and lower ends of the two springs (13) are fixedly connected to the corresponding buckles (12). The multiple buckles (12) are engaged with the corresponding slots (14). The two fixing blocks (15) have filter cylinders (9) fixedly connected to the left end. The two filter cylinders (9) have sliding connections to the corresponding baffles (8). The bottom of the box (1) has a support mechanism (2). The support mechanism (2) is convenient for supporting and fixing the heat exchanger unit when the device does not need to be moved.

2. The box-type heat exchanger unit according to claim 1, characterized in that: The support mechanism (2) includes an inner cavity (201), which is located at the bottom of the box (1). Wheels (209) are fixedly connected to the four corners of the bottom of the box (1). A motor (202) is fixedly connected to the lower right side of the box (1). The output end of the motor (202) passes through the box (1) and is fixedly connected to a bidirectional threaded rod (203). Slider (204) is threadedly connected to the left and right sides of the outer wall of the bidirectional threaded rod (203). Linkage rods (205) are rotatably connected to the bottom front and rear sides of the two sliders (204). Connecting blocks (206) are rotatably connected to the bottom ends of multiple linkage rods (205). The bottom of multiple connecting blocks (206) is fixedly connected to the same base plate (207). Support legs (208) are fixedly connected to the four corners of the bottom of the base plate (207).

3. The box-type heat exchanger unit according to claim 1, characterized in that: The front side of the box body (1) is provided with a box door (17). The upper and lower sides of the front wall of the box door (17) are fixedly connected with hinges (18) at the opposite end. The box door (17) is rotatably connected to the box body (1) through the hinges (18).

4. A box-type heat exchanger unit according to claim 3, characterized in that: The front wall of the box door (17) is fixedly connected to handles (19) on both the left and right sides, and the outer side of the handles (19) is fixedly connected to a protective sleeve (20).

5. A box-type heat exchanger unit according to claim 1, characterized in that: The upper middle part of the left and right sides of the box (1) is provided with windows (21), and ventilation fans (22) are fixedly connected to the adjacent side of the two windows (21).

6. A box-type heat exchanger unit according to claim 1, characterized in that: The heat source inlet pipe (4) and the heat source outlet pipe (5) are both fixedly connected to a first flange (16) at the ends away from each other. The cold source inlet pipe (6) and the cold source outlet pipe (7) are both fixedly connected to a second flange (26) at the ends away from each other. A sealing ring (23) is fixedly connected to the right side of the outer wall of the filter cylinder (9).

7. A box-type heat exchanger unit according to claim 2, characterized in that: A limiting groove (24) is provided on the top inner side of the inner cavity (201), and the tops of the two sliders (204) are slidably connected inside the limiting groove (24).

8. A box-type heat exchanger unit according to claim 2, characterized in that: Each of the support legs (208) has a gasket (25) fixedly connected to its bottom end. The outer diameter of the two baffles (8) is matched with the inner diameter of the heat source water inlet pipe (4) and the cold source water inlet pipe (6), respectively.

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