Plate heat exchange device for fresh air handling unit total heat recovery
By designing the push and cleaning components, the problem of dirt adhering to the surface of the heat exchange plate was solved, achieving a better cleaning effect and flexible adjustment of the heat exchange plate, thereby improving the heat exchange efficiency and adaptability of the fresh air unit.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGTAI JIALENG ENVIRONMENTAL TECH CO LTD
- Filing Date
- 2025-07-30
- Publication Date
- 2026-06-12
AI Technical Summary
After prolonged use, dust and other impurities accumulate on the surface of the heat exchange plates of existing fresh air handling units, affecting heat exchange efficiency.
A plate heat exchanger including a pushing component and a cleaning component was designed. The brush rod is driven by a hydraulic rod to clean the dirt on the surface of the heat exchange plate, and the position of the mounting plate is adjusted by a servo motor to adapt to different working conditions.
It effectively removes dirt from the surface of the heat exchange plates, restores thermal conductivity, improves heat exchange efficiency, and allows the number of heat exchange plates to be adjusted to suit different fluid characteristics.
Smart Images

Figure CN224353653U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plate heat exchanger technology, and in particular to a plate heat exchanger device for total heat recovery of fresh air handling units. Background Technology
[0002] In today's society, building energy consumption accounts for a significant proportion of global energy consumption. With the acceleration of urbanization and people's increasing demands for indoor environmental quality, the frequency and duration of use of various equipment in buildings are increasing, making building energy consumption issues increasingly prominent. As an important device for ensuring indoor air quality and maintaining indoor environmental comfort, fresh air units consume a large amount of energy to process fresh air during operation.
[0003] When existing devices are used for a long time, dust and other impurities will stick to the surface of the heat exchange plate. These impurities will affect the heat exchange efficiency. Therefore, a plate heat exchange device for total heat recovery of fresh air units is proposed. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] The purpose of this utility model is to provide a plate heat exchanger for total heat recovery of fresh air handling units, which solves the problem mentioned in the background art that when existing devices are used for a long time, some dust and other impurities will stick to the surface of the heat exchange plate, and these impurities will affect the heat exchange efficiency.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: a plate heat exchanger for total heat recovery in a fresh air handling unit, comprising a mounting frame, a pushing assembly fixedly connected to the top surface of the mounting frame, a mounting plate threadedly connected to the outer side of the pushing assembly, a cleaning assembly fixedly connected to one side of the mounting plate, the pushing assembly including a motor housing fixedly connected to the top surface of the mounting frame, a servo motor fixedly connected inside the motor housing, and a threaded rod fixedly connected to one end of the servo motor; the cleaning assembly including a hydraulic rod fixedly connected to one side of the mounting plate, a brush rod fixedly connected to one end of the hydraulic rod, and two sets of telescopic rods fixedly connected to one side of the brush rod.
[0008] As a further embodiment of this utility model, the mounting plate has a threaded hole inside, and the threaded rod is threaded into the inside of the threaded hole. The threaded rod enables the mounting plate to move, allowing the addition of a heat exchange plate.
[0009] As a further embodiment of this utility model, the top surface of the mounting frame is provided with several sets of heat exchange plates, and a fixing plate is fixedly connected to one side of the mounting frame. The fixing plate serves to install liquid inlet pipes, etc.
[0010] As a further embodiment of this utility model, two sets of liquid inlet pipes are fixedly connected to the upper end of one side of the fixing plate, and two sets of liquid outlet pipes are fixedly connected to the lower end of one side of the fixing plate. The liquid inlet pipes enable the liquid to circulate.
[0011] As a further embodiment of this utility model, filter boxes are fixedly connected to the outside of both sets of liquid inlet pipes, and two sets of filter frames are slidably connected inside the two sets of filter boxes. The filter boxes serve to install the filter frames.
[0012] As a further embodiment of this utility model, a filter screen is fixedly connected inside both sets of filter frames, and a handle is fixedly connected to the top surface of both sets of filter screens. The handles enable the filter frames to be pulled out.
[0013] As a further embodiment of this utility model, the bottom surface of the fixing plate has two sets of support legs, and the interior of each set of support legs is threaded with fixing screws. The support legs serve to support the device.
[0014] (III) Beneficial Effects
[0015] This utility model provides a plate heat exchanger for total heat recovery in fresh air handling units, which has the following beneficial effects:
[0016] 1. The plate heat exchanger for total heat recovery in this fresh air handling unit, through the setting of the cleaning component, when in use, the hydraulic rod is activated, and the hydraulic rod pushes the brush rod to move. At this time, the telescopic rod extends and retracts along with the movement of the brush rod, making the brush rod more stable during movement. The movement of the brush rod cleans the surface of the heat exchange plate, thereby removing dirt and other substances adhering to the surface of the heat exchange plate, restoring the surface of the heat exchange plate to good thermal conductivity, and improving the overall heat exchange efficiency of the heat exchanger.
[0017] 2. The plate heat exchanger for total heat recovery in this fresh air handling unit, through the setting of the push component, starts the servo motor when in use. The rotation of the servo motor drives the threaded rod to rotate, and the rotation of the threaded rod causes the mounting plate to move on the threaded rod. The movement of the mounting plate allows the distance between the mounting plate and the fixed plate to be adjusted, so that the number of heat exchange plates can be quickly added according to the needs, making the plate heat exchanger suitable for various working conditions and fluid characteristics. Attached Figure Description
[0018] Figure 1This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the structure of the driving component of this utility model;
[0020] Figure 3 This is a schematic diagram of the cleaning component structure of this utility model;
[0021] Figure 4 This is a schematic diagram of the filter screen structure of this utility model.
[0022] In the diagram: 1. Mounting bracket; 2. Push assembly; 201. Motor housing; 202. Servo motor; 203. Threaded rod; 3. Mounting plate; 4. Cleaning assembly; 401. Hydraulic rod; 402. Brush rod; 403. Telescopic rod; 5. Heat exchange plate; 6. Fixing plate; 7. Inlet pipe; 8. Outlet pipe; 9. Filter box; 10. Filter frame; 11. Filter screen; 12. Handle; 13. Support leg; 14. Fixing screw. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0024] Please see Figures 1 to 4 This utility model provides a technical solution: a plate heat exchanger for total heat recovery in a fresh air handling unit, including a mounting frame 1. A pushing component 2 is fixedly connected to the top surface of the mounting frame 1. The pushing component 2 enables the device to quickly install heat exchange plates 5. A mounting plate 3 is threadedly connected to the outer side of the pushing component 2. A cleaning component 4 is fixedly connected to one side of the mounting plate 3. The cleaning component 4 cleans the surface of the heat exchange plates 5. The pushing component 2 includes a motor housing 201 fixedly connected to the top surface of the mounting frame 1. A servo motor 202 is fixedly connected inside the motor housing 201. A threaded rod 203 is fixedly connected to one end of the servo motor 202. The cleaning component 4 includes a hydraulic rod 401 fixedly connected to one side of the mounting plate 3. A brush rod 402 is fixedly connected to one end of the hydraulic rod 401. Two sets of telescopic rods 403 are fixedly connected to one side of the brush rod 402.
[0025] The mounting plate 3 has a threaded hole inside, and the threaded rod 203 is threaded into the inside of the threaded hole. The threaded rod 203 is used to move the mounting plate 3 so that the heat exchange plate 5 can be added.
[0026] The top surface of the mounting frame 1 is provided with several sets of heat exchange plates 5, and a fixing plate 6 is fixedly connected to one side of the mounting frame 1. The fixing plate 6 serves to install the liquid inlet pipe 7, etc.
[0027] Two sets of liquid inlet pipes 7 are fixedly connected to the upper end of one side of the fixed plate 6, and two sets of liquid outlet pipes 8 are fixedly connected to the lower end of one side of the fixed plate 6. The liquid inlet pipes 7 are used to allow the liquid to flow.
[0028] Two sets of inlet pipes 7 are fixedly connected to the outside of filter boxes 9, and two sets of filter frames 10 are slidably connected inside the two sets of filter boxes 9. The filter boxes 9 serve to install the filter frames 10.
[0029] Both sets of filter frames 10 have filter screens 11 fixedly connected inside, and both sets of filter screens 11 have handles 12 fixedly connected to their top surfaces. The handles 12 allow the filter frames 10 to be pulled out.
[0030] The bottom surface of the fixed plate 6 has two sets of support legs 13. The inside of each set of support legs 13 is threaded with fixing screws 14. The support legs 13 serve to support the device.
[0031] In this invention, the working steps of the device are as follows:
[0032] First step: When in use, start the hydraulic rod 401. The hydraulic rod 401 pushes the brush rod 402 to move. At this time, the telescopic rod 403 extends and retracts along with the movement of the brush rod 402. The telescopic rod 403 makes the brush rod 402 more stable when moving. The movement of the brush rod 402 cleans the surface of the heat exchange plate 5, thereby removing dirt and other substances adhering to the surface of the heat exchange plate 5, restoring the surface of the heat exchange plate 5 to good thermal conductivity, and improving the overall heat exchange efficiency of the heat exchanger.
[0033] The second step: When in use, start the servo motor 202. The rotation of the servo motor 202 drives the threaded rod 203 to rotate. The rotation of the threaded rod 203 causes the mounting plate 3 to move on the threaded rod 203. The movement of the mounting plate 3 allows the distance between the mounting plate 3 and the fixed plate 6 to be adjusted, so that the number of heat exchange plates 5 can be quickly added according to the needs, making the plate heat exchanger suitable for various working conditions and fluid characteristics.
[0034] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.
[0035] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.
[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A plate heat exchanger for total heat recovery in a fresh air handling unit, comprising a mounting bracket (1), characterized in that: A pushing assembly (2) is fixedly connected to the top surface of the mounting bracket (1), and a mounting plate (3) is threadedly connected to the outer side of the pushing assembly (2). A cleaning assembly (4) is fixedly connected to one side of the mounting plate (3). The pushing component (2) includes a motor housing (201) fixedly connected to the top surface of the mounting frame (1), a servo motor (202) fixedly connected inside the motor housing (201), and a threaded rod (203) fixedly connected to one end of the servo motor (202); The cleaning assembly (4) includes a hydraulic rod (401) fixedly connected to one side of the mounting plate (3), a brush rod (402) fixedly connected to one end of the hydraulic rod (401), and two sets of telescopic rods (403) fixedly connected to one side of the brush rod (402).
2. The plate heat exchanger for total heat recovery in a fresh air handling unit according to claim 1, characterized in that: The mounting plate (3) has a threaded hole inside, and the threaded rod (203) is threaded into the inside of the threaded hole.
3. The plate heat exchanger for total heat recovery in a fresh air handling unit according to claim 1, characterized in that: The top surface of the mounting frame (1) is provided with several sets of heat exchange plates (5), and a fixing plate (6) is fixedly connected to one side of the mounting frame (1).
4. A plate heat exchanger for total heat recovery in a fresh air handling unit according to claim 3, characterized in that: Two sets of inlet pipes (7) are fixedly connected to the upper end of one side of the fixed plate (6), and two sets of outlet pipes (8) are fixedly connected to the lower end of one side of the fixed plate (6).
5. A plate heat exchanger for total heat recovery in a fresh air handling unit according to claim 4, characterized in that: Both sets of inlet pipes (7) are fixedly connected to the outside of filter boxes (9), and both sets of filter boxes (9) are slidably connected to the inside of filter frames (10).
6. A plate heat exchanger for total heat recovery in a fresh air handling unit according to claim 5, characterized in that: Both sets of filter frames (10) have filter screens (11) fixedly connected inside, and both sets of filter screens (11) have handles (12) fixedly connected to their top surfaces.
7. A plate heat exchanger for total heat recovery in a fresh air handling unit according to claim 3, characterized in that: The bottom surface of the fixing plate (6) has two sets of support legs (13), and the interior of both sets of support legs (13) is threaded with fixing screws (14).