Box-type water mixing heat supply unit

The filter structure and water pump system of the box-type mixing water heating unit solve the problem of scale accumulation, improve heating efficiency and device durability, simplify the use process, and enhance connection strength and sealing effect.

CN224261796UActive Publication Date: 2026-05-19HARBIN XINQIYUAN ENERGY SAVING TECHNOLOGY SERVICE CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HARBIN XINQIYUAN ENERGY SAVING TECHNOLOGY SERVICE CO LTD
Filing Date
2025-06-26
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

In traditional heating systems, scale buildup affects the lifespan of the equipment and heating efficiency, results in poor filtration, inefficient connection structures, and necessitates improvements in installation convenience and maintenance efficiency.

Method used

The unit adopts a box-type mixing water heating unit, which includes a cylindrical water storage tank, a filter structure and a water pump. The filter structure includes a two-stage filtration and cleaning device. Scale is removed by gears and brush plates driven by a servo motor. The water flow is mixed by stirring blades, and water is distributed and supplied through multiple water pipes and control valves.

Benefits of technology

It effectively removes limescale, improves heating efficiency, extends device life, enhances sealing and connection strength, simplifies usage steps, and optimizes the user experience.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224261796U_ABST
    Figure CN224261796U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of heat supply, and discloses a box-type water mixing heat supply unit which comprises a first water storage tank, a second water storage tank and a water supply device. The filtering structure comprises a first filtering part and a second filtering part, the first filtering part comprises two sets of filtering pipes arranged outside the first water storage tank, the two ends of each filtering pipe are each fixedly provided with a set of connecting flanges, and a fifth water conveying pipe is fixedly installed between the two sets of connecting flanges; the two ends of the fifth water conveying pipe are each fixedly provided with a set of fixing frame plates, and water filtering net plates are fixedly installed in the fixing frame plates. The second filtering part comprises a collecting tank arranged at the bottom of the filtering pipe, the two ends of the collecting tank are each fixedly provided with a first blow-off pipe, and one end of each first blow-off pipe is fixedly installed in the fifth water conveying pipe, so that the purpose of cleaning and impurity removal of water is achieved, damage of scale to the device is reduced, and the heat supply efficiency of the device is improved; the service life of the device is prolonged, and the durability of the device is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model belongs to the field of heating technology, specifically, it relates to a box-type mixing water heating unit. Background Technology

[0002] Traditional heating systems often use heat exchange units for heat transfer, but this method suffers from problems such as large heat loss and high energy consumption. To overcome these shortcomings, mixed-water heating units have emerged on the market. These units regulate the temperature of the heating system by mixing high-temperature heat sources and low-temperature return water, thus achieving energy conservation and consumption reduction.

[0003] Utility model CN220817850U ​​relates to the field of heating unit technology and discloses a mixing water heating unit, including a heating unit body, a hot water pump, and a cold water pump. Both the inlet and outlet ends of the hot water pump and the cold water pump are equipped with connecting flanges. The outlet ends of the hot water pump and the cold water pump are respectively connected to a hot water inlet pipe and a cold water inlet pipe via the connecting flanges. The outlet ends of the hot water inlet pipe and the cold water inlet pipe are connected to the inlet end of the heating unit body. The outlet end of the heating unit body is fixedly connected to an outlet pipe, and the outlet end of the outlet pipe is fixedly connected to a connecting pipe. Multiple branch pipes are provided at the outlet end of the connecting pipe. Solenoid valves are installed at the inlet ends of each branch pipe. Multiple mixing mechanisms are provided on the inner wall of the outlet pipe. Anti-backflow mechanisms are provided on the inner walls of the hot water inlet pipe and the cold water inlet pipe. This utility model can effectively avoid large temperature differences in the outlet water and prevent cold water backflow, effectively solving the problem of cold water flowing back to the hot water side under back pressure or reverse pressure difference.

[0004] However, the aforementioned patents also have the following problems: During the transportation of high-temperature and low-temperature water, scale easily adheres to the inner wall of the device due to the minerals and impurities contained in the water. Long-term accumulation can affect the lifespan of the device, reduce heating efficiency, and even cause malfunctions. Although the patents may include some filtration devices, in practical applications, the filtration effect may not be ideal and cannot effectively reduce the impact of scale on the device. The connection between the inlet and outlet pipes of the unit may also have issues with low efficiency and poor performance. Furthermore, the connection structure of the device has room for further optimization to improve installation convenience and maintenance efficiency.

[0005] In view of this, this utility model is hereby proposed. Utility Model Content

[0006] To solve the aforementioned technical problem of poor water filtration efficiency, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] A box-type mixing water heating unit includes:

[0008] The first water storage tank is cylindrical.

[0009] The filtration structure includes a first filtration section and a second filtration section. The first filtration section includes two sets of filter pipes disposed outside a first water storage tank. A set of connecting flanges is fixedly installed at both ends of each filter pipe. A fifth water supply pipe is fixedly installed between the two sets of connecting flanges. A set of fixing frame plates is fixedly installed at both ends of the fifth water supply pipe. A filter screen plate is fixedly installed inside the fixing frame plate. The second filtration section includes a collection tank disposed at the bottom of the filter pipes. A set of first sewage pipes is fixedly installed at both ends of the collection tank. One end of the first sewage pipe is fixedly installed inside the fifth water supply pipe.

[0010] In a preferred embodiment of this utility model, the second filter section further includes a second drain pipe fixedly installed at the bottom of the collection tank, a second rotating rod rotatably installed between two sets of fixed frame plates, two sets of second helical bevel gears fixedly installed on the outer wall of the second rotating rod, a first fixed plate fixedly installed on the outer wall of the filter pipe, a servo motor fixedly installed on the top of the first fixed plate, a first rotating rod rotatably installed on the bottom of the first fixed plate, a first helical bevel gear fixedly installed at one end of the first rotating rod, and the first helical bevel gear meshing with two sets of second helical bevel gears.

[0011] In a preferred embodiment of the present invention, the second filter part further includes a third rotating rod that is fixedly installed at both ends of the second rotating rod. A rotating plate is fixedly installed on the outer wall of the third rotating rod, and a brush plate is fixedly installed on one side of the outer wall of the rotating plate. One side of the outer wall of the brush plate is in close contact with the outer wall of the filter screen plate.

[0012] In a preferred embodiment of this utility model, eight sets of limiting holes are provided on the outer wall of the connecting flange, two sets of water pumps are provided on the outside of the first water storage tank, and a set of connecting flanges is fixedly installed at the output end and input end of the water pumps. Every two sets of connecting flanges are tightly attached, and limiting bolts are provided inside the limiting holes.

[0013] In a preferred embodiment of this utility model, fourteen sets of fixing ring plates are fixedly installed on the outer wall of the second rotating rod, and four sets of stirring blades are fixedly installed on the outer wall of the fixing ring plates.

[0014] In a preferred embodiment of the present invention, a return tank is provided outside the first water storage tank, and a water supply pipe is fixedly installed between the first water storage tank and the return tank. A first water supply pipe is provided at one end of a set of connecting flanges at one end of the filter pipe, and one end of the first water supply pipe is fixedly installed inside the first water storage tank.

[0015] In a preferred embodiment of the present invention, a second water supply pipe is provided on the outside of the first water storage tank, a third water supply pipe is fixedly installed at one end of the second water supply pipe, seven sets of fourth water supply pipes are provided on the outer wall of the third water supply pipe, and a control valve is provided on the outer wall of the fourth water supply pipe.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] 1. To achieve the purpose of cleaning and removing impurities from the water, reducing the damage of scale to the device, improving the heating efficiency of the device, extending the service life of the device, and improving the durability of the device.

[0018] 2. To achieve the purpose of assisting in the mixing and transportation of water, improve the flexibility of the device in use, and connect and fix the devices to improve the fixing strength between the devices and enhance the sealing effect of the device.

[0019] 3. To achieve the purpose of water input and output, simplify the operation of the device, improve the heating efficiency of the device, and optimize the user experience of the device.

[0020] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0021] In the attached diagram:

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the filter tube structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the fifth water supply pipe structure of this utility model;

[0025] Figure 4 This is a schematic diagram of the second rotating rod structure of this utility model;

[0026] Figure 5 This is a schematic diagram of the collection tank structure of this utility model;

[0027] Figure 6 This is an enlarged view of part A of this utility model.

[0028] In the diagram: 10. First water storage tank; 11. Return tank; 12. Water pump; 13. Filter pipe; 14. First water supply pipe; 15. Second water supply pipe; 16. Third water supply pipe; 17. Fourth water supply pipe; 18. Control valve; 19. First fixed plate; 20. Servo motor; 21. First rotating rod; 22. First helical bevel gear; 23. Second rotating rod; 24. Second helical bevel gear; 25. Fixed ring plate; 26. Stirring blade; 27. Connecting flange; 28. Limiting hole; 29. ​​First drain pipe; 30. Collection tank; 31. Second drain pipe; 32. Fixed frame plate; 33. Filter screen plate; 34. Third rotating rod; 35. Rotating plate; 36. Brush plate; 37. Fifth water supply pipe. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0030] Example 1: A box-type mixing water heating unit, specifically as follows Figure 1 , Figure 2 and Figure 3 As shown, the system includes a first water storage tank 10, which is cylindrical; a filtration structure, which includes a first filtration section and a second filtration section. The first filtration section includes two sets of filter pipes 13 disposed outside the first water storage tank 10. A set of connecting flanges 27 are fixedly installed at both ends of the filter pipes 13. A fifth water supply pipe 37 is fixedly installed between the two sets of connecting flanges 27. A set of fixing frame plates 32 are fixedly installed at both ends of the fifth water supply pipe 37. A filter screen plate 33 is fixedly installed inside the fixing frame plate 32. The second filtration section includes a collection tank 30 disposed at the bottom of the filter pipes 13. A set of first sewage pipes 29 are fixedly installed at both ends of the collection tank 30. One end of the first sewage pipe 29 is fixedly installed inside the fifth water supply pipe 37. The water is filtered and impurities are removed through the filtration structure. The filter screen plate 33 is fixed by the fixed frame plate 32. The water is filtered twice by the filter screen plate 33. The scale is transported to the inside of the collection tank 30 through the first drain pipe 29 and discharged through the second drain pipe 31.

[0031] Specifically, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the second filtration section also includes a second drain pipe 31 fixedly installed at the bottom of the collection tank 30. A second rotating rod 23 is rotatably installed between two sets of fixed frame plates 32. Two sets of second helical bevel gears 24 are fixedly installed on the outer wall of the second rotating rod 23. A first fixed plate 19 is fixedly installed on the outer wall of the filter pipe 13. A servo motor 20 is fixedly installed on the top of the first fixed plate 19. A first rotating rod 21 is rotatably installed on the bottom of the first fixed plate 19. A first helical bevel gear 22 is fixedly installed at one end of the first rotating rod 21. The first helical bevel gear 22 meshes with the two sets of second helical bevel gears 24. When the servo motor 20 is started, it drives the first rotating rod 21 to rotate, which in turn drives the first helical bevel gear 22 to rotate, which in turn drives the second helical bevel gear 24 to rotate, causing the second rotating rod 23 to rotate between the two sets of fixed frame plates 32.

[0032] Specifically, such as Figure 1 , Figure 3 , Figure 5 and Figure 6As shown, the second filtration section also includes a third rotating rod 34 fixedly installed at both ends of the second rotating rod 23. A rotating plate 35 is fixedly installed on the outer wall of the third rotating rod 34, and a brush plate 36 is fixedly installed on one side of the outer wall of the rotating plate 35. One side of the outer wall of the brush plate 36 is in close contact with the outer wall of the filter screen plate 33. When the second rotating rod 23 rotates, it drives the third rotating rod 34 to rotate, which in turn drives the rotating plate 35 to rotate, causing the brush plate 36 to clean the filter screen plate 33.

[0033] Based on the above, the structure consisting of the first water storage tank 10, filter pipe 13, first fixed plate 19, servo motor 20, first rotating rod 21, first helical bevel gear 22, second rotating rod 23, second helical bevel gear 24, connecting flange 27, first drain pipe 29, collection tank 30, second drain pipe 31, fixed frame plate 32, filter screen plate 33, third rotating rod 34, rotating plate 35, and brush plate 36 achieves the purpose of cleaning and removing impurities from the water, reducing the damage of scale to the device, improving the heating efficiency of the device, extending the service life of the device, and improving the durability of the device.

[0034] Example 2: Based on Example 1, specifically as follows... Figure 1 , Figure 2 and Figure 5 As shown, eight sets of limiting holes 28 are provided on the outer wall of the connecting flange 27. Two sets of water pumps 12 are installed outside the first water storage tank 10. A set of connecting flanges 27 is fixedly installed at both the output and input ends of the water pumps 12. Every two sets of connecting flanges 27 are tightly fitted together, and limiting bolts are installed inside the limiting holes 28. By sequentially fitting multiple sets of connecting flanges 27 together and rotating the limiting bolts to the temporal part of the limiting holes 28, multiple sets of devices are connected and fixed.

[0035] Specifically, such as Figure 1 and Figure 4 As shown, fourteen sets of fixed ring plates 25 are fixedly installed on the outer wall of the second rotating rod 23, and four sets of stirring blades 26 are fixedly installed on the outer wall of the fixed ring plates 25. When the second rotating rod 23 rotates, it drives the fixed ring plates 25 to rotate, and the stirring blades 26 stir the water flow.

[0036] Based on the above, the structure of water pump 12, second rotating rod 23, fixed ring plate 25, stirring blade 26, connecting flange 27 and limiting hole 28 achieves the purpose of auxiliary mixing and transportation of water, improves the flexibility of the device, connects and fixes the device, improves the fixing strength between devices, and enhances the sealing effect of the device.

[0037] Example 3: Based on Examples 1 and 2, specifically as follows... Figure 1As shown, a return tank 11 is installed outside the first water storage tank 10. A water supply pipe is fixedly installed between the first water storage tank 10 and the return tank 11. A first water supply pipe 14 is installed at one end of a set of connecting flanges 27 at one end of the filter pipe 13. One end of the first water supply pipe 14 is fixedly installed inside the first water storage tank 10. When the water pump 12 is started, hot and cold water are transported through the filter pipe 13 and the first water supply pipe 14. The cold water is circulated through the first water storage tank 10 and the return tank 11 to improve the heating regulation efficiency of the device.

[0038] Specifically, such as Figure 1 As shown, a second water supply pipe 15 is provided on the outside of the first water storage tank 10. A third water supply pipe 16 is fixedly installed at one end of the second water supply pipe 15. Seven sets of fourth water supply pipes 17 are opened on the outer wall of the third water supply pipe 16. A control valve 18 is provided on the outer wall of the fourth water supply pipe 17. When the control valve 18 is opened, water is supplied through the second water supply pipe 15, the third water supply pipe 16 and the fourth water supply pipes 17.

[0039] In summary, the structure of the first water storage tank 10, the return tank 11, the water pump 12, the filter pipe 13, the first water supply pipe 14, the second water supply pipe 15, the third water supply pipe 16, the fourth water supply pipe 17, and the control valve 18 achieves the purpose of water input and output, simplifies the operation of the device, improves the heating efficiency of the device, and optimizes the user experience of the device.

[0040] Working Principle: The unit includes a first water storage tank 10, which is cylindrical in shape. The unit has a filtration structure, divided into a first filtration section and a second filtration section. The first filtration section consists of two sets of filter pipes 13 located outside the first water storage tank 10. Both ends of the filter pipes 13 are connected to a fifth water supply pipe 37 via connecting flanges 27. A fixed frame plate 32 is installed at both ends of the fifth water supply pipe 37, and a filter screen plate 33 is fixed inside, achieving two-stage filtration. The second filtration section includes a collection tank 30 located at the bottom of the filter pipes 13, connected to the interior of the fifth water supply pipe 37 via a first drain pipe 29, collecting scale and discharging it through a second drain pipe 31. The second filtration section also has a second rotating rod 23, which is driven to rotate by a servo motor 20, a first rotating rod 21, and a first helical bevel gear 22, driving the second helical bevel gear 24 and the second rotating rod 23. Third rotating rods 34 at both ends of the second rotating rod 23 drive a rotating plate 35 and a brush plate 36 to rotate, cleaning the filter screen plate 33. The fixed ring plate 25 and stirring blades 26 on the second rotating rod 23 agitate the water. The unit also includes a return tank 11, which is connected to the first water storage tank 10 via a water supply pipe to achieve cold water circulation. One end of the filter pipe 13 is connected to the inside of the first water storage tank 10 via the first water supply pipe 14. The water pump 12 is started to deliver hot and cold water through the filter pipe 13 and the first water supply pipe 14. The unit is equipped with a second water supply pipe 15, a third water supply pipe 16, and multiple fourth water supply pipes 17. By opening the control valve 18, the water is diverted and supplied. Overall, the unit filters and removes impurities from the water through the filtration structure, drives the brush plate 36 to clean the filter screen plate 33 through the servo motor 20, agitates the water flow through the stirring blades 26, and achieves water circulation and diversion supply through the water pump 12 and multiple water supply pipes, thereby improving the heating regulation efficiency.

[0041] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A box-type mixing water heating unit, characterized in that, include: The first water storage tank (10) is cylindrical; The filtration structure includes a first filtration section and a second filtration section. The first filtration section includes two sets of filter pipes (13) located outside the first water storage tank (10). A set of connecting flanges (27) is fixedly installed at both ends of the filter pipes (13). A fifth water supply pipe (37) is fixedly installed between the two sets of connecting flanges (27). A set of fixed frame plates (32) is fixedly installed at both ends of the fifth water supply pipe (37). A filter screen plate (33) is fixedly installed inside the fixed frame plate (32). The second filtration section includes a collection tank (30) located at the bottom of the filter pipes (13). A set of first sewage pipes (29) is fixedly installed at both ends of the collection tank (30). One end of the first sewage pipe (29) is fixedly installed inside the fifth water supply pipe (37).

2. The packaged water-to-air heating unit of claim 1, wherein, The second filter section also includes a second drain pipe (31) fixedly installed at the bottom of the collection tank (30), a second rotating rod (23) rotatably installed between two sets of fixed frame plates (32), two sets of second helical bevel gears (24) fixedly installed on the outer wall of the second rotating rod (23), a first fixed plate (19) fixedly installed on the outer wall of the filter pipe (13), a servo motor (20) fixedly installed on the top of the first fixed plate (19), a first rotating rod (21) rotatably installed on the bottom of the first fixed plate (19), a first helical bevel gear (22) fixedly installed at one end of the first rotating rod (21), and the first helical bevel gear (22) meshing with the two sets of second helical bevel gears (24).

3. The packaged water-to-air heating unit of claim 1, wherein, The second filter section also includes a third rotating rod (34) that is fixedly installed at both ends of the second rotating rod (23). A rotating plate (35) is fixedly installed on the outer wall of the third rotating rod (34). A brush plate (36) is fixedly installed on one side of the outer wall of the rotating plate (35). One side of the outer wall of the brush plate (36) is in close contact with the outer wall of the filter screen plate (33).

4. The packaged water-to-air heating unit of claim 1, wherein, The outer wall of the connecting flange (27) is provided with eight sets of limiting holes (28). Two sets of water pumps (12) are set outside the first water storage tank (10). A set of connecting flanges (27) is fixedly installed at the output end and input end of the water pump (12). Every two sets of connecting flanges (27) are tightly attached, and limiting bolts are set inside the limiting holes (28).

5. The packaged water-to-air heating unit of claim 2, wherein, Fourteen sets of fixing ring plates (25) are fixedly installed on the outer wall of the second rotating rod (23), and four sets of stirring blades (26) are fixedly installed on the outer wall of the fixing ring plates (25).

6. The packaged water-to-air heating unit of claim 1, wherein, A return tank (11) is provided on the outside of the first water storage tank (10). A water supply pipe is fixedly installed between the first water storage tank (10) and the return tank (11). A first water supply pipe (14) is provided at one end of a set of connecting flanges (27) at one end of the filter pipe (13). One end of the first water supply pipe (14) is fixedly installed inside the first water storage tank (10).

7. The packaged water-to-air heating unit of claim 1, wherein The first water storage tank (10) is externally provided with a second water delivery pipe (15), one end of the second water delivery pipe (15) is fixedly provided with a third water delivery pipe (16), seven fourth water delivery pipes (17) are arranged on the outer wall of the third water delivery pipe (16), and control valves (18) are arranged on the outer walls of the fourth water delivery pipes (17).