A bidirectional heat recovery fresh air dehumidifier

Abstract

This utility model belongs to the field of dehumidifiers, specifically a bidirectional heat recovery fresh air dehumidifier, including a shell assembly and a cover plate assembly. The shell assembly has a sliding groove, threaded holes, drainage holes, and air vents. A filter screen is installed in the sliding groove through a slider. Inside the shell, a first fan, a condenser, a compressor, and an evaporator are arranged in sequence. A heat exchanger is embedded in a mounting plate fixed to the inner wall, and a second fan is located at the bottom. The cover plate of the cover plate assembly is connected to the threaded holes of the shell by bolts, and overlaps the mounting plate and the filter screen. The compressor, condenser, and evaporator form a refrigeration cycle, realizing the coordinated operation of fresh air cooling and dehumidification and temperature adjustment. The heat exchanger realizes efficient heat recovery between fresh air and exhaust air. The sliding groove and slider enable convenient installation and removal of the filter screen, improving energy efficiency, indoor environmental comfort, equipment maintenance convenience, and operational reliability.

Description

Technical Field

[0001] This utility model relates to the field of dehumidifiers, specifically a bidirectional flow heat recovery fresh air dehumidifier. Background Technology

[0002] As people's requirements for indoor air quality and living comfort continue to increase, two-way flow fresh air systems, which can simultaneously introduce fresh outdoor air and expel stale indoor air, effectively improving indoor air circulation, have been widely used in various buildings such as residences and offices.

[0003] However, existing bidirectional airflow fresh air systems still have the following shortcomings in practical applications:

[0004] 1. Limited heat recovery efficiency: Traditional systems often use simple plate or tube structures for heat exchange components, resulting in insufficient heat transfer between fresh air and exhaust air, leading to serious energy waste. Especially in winter and summer, fresh air treatment requires a lot of energy to adjust to a comfortable temperature, resulting in high operating costs.

[0005] 2. Insufficient dehumidification: Most bidirectional airflow fresh air systems only focus on air replacement and do not integrate a high-efficiency dehumidification module. In high humidity environments, the introduced fresh air is prone to carrying a large amount of water vapor, resulting in high indoor humidity, which not only affects the comfort of living, but may also cause problems such as mold growth. Some systems with dehumidification functions have poor coordination between dehumidification and temperature regulation, which can easily cause the outlet air temperature to be too low or too high.

[0006] 3. Poor maintenance convenience: The existing system's filter components and core heat exchange components are mostly fixed installations. Disassembly, cleaning, or replacement requires the removal of a large number of connecting parts, which is cumbersome and affects the long-term stable operation of the equipment. Therefore, a bidirectional heat recovery fresh air dehumidifier is proposed to address the above problems. Utility Model Content

[0007] To address the shortcomings of existing technologies, such as insufficient heat exchange leading to energy waste, lack of efficient dehumidification modules or poor coordination between dehumidification and temperature regulation, cumbersome disassembly and maintenance of core components like filter components, and poor condensate drainage affecting equipment stability, this utility model proposes a bidirectional flow heat recovery fresh air dehumidifier.

[0008] The technical solution adopted by this utility model to solve its technical problem is: a bidirectional flow heat recovery fresh air dehumidifier, including a shell assembly and a cover plate assembly. The shell assembly includes a shell, the top of the shell is provided with four sliding grooves and four threaded holes, the bottom plate of the shell is provided with a drain hole, and air vents are provided on both sides of the shell.

[0009] A slider is slidably fitted inside the groove, and a filter screen is fixedly connected to the outer surface of the slider.

[0010] The first fan, condenser, compressor and evaporator are fixedly installed in the housing from right to left.

[0011] An installation plate is fixedly connected to the inner wall of the shell, and a heat exchanger is fixedly embedded in the installation plate.

[0012] The output end of the compressor is connected to the input end of the condenser, and the output end of the evaporator is connected to the input end of the compressor.

[0013] Preferably, four mounting blocks are fixedly installed on the outer surface of the housing, and the four mounting blocks are rectangularly distributed on the front and rear baffles of the housing.

[0014] Preferably, the mounting block has mounting holes.

[0015] Preferably, the cover plate assembly includes a cover plate on which bolts are threadedly connected.

[0016] Preferably, there are four bolts, and their ends are threaded into threaded holes.

[0017] Preferably, the bottom surface of the cover plate overlaps with the top surface of the mounting plate and the top surface of the filter screen plate, respectively.

[0018] Preferably, a second fan is installed at the bottom of the inner wall of the housing, and the second fan is located on the left side of the mounting plate.

[0019] The advantages of this utility model are:

[0020] 1. This utility model achieves the function of detachable installation of the filter screen plate through the structural design of the top groove of the housing and the sliding cooperation of the slider. This solves the problem of cumbersome disassembly and maintenance of traditional filter components and improves the convenience of equipment maintenance.

[0021] 2. This utility model achieves efficient heat exchange between fresh air and exhaust air through a structural design that uses an installation plate to fix and embed the heat exchanger. This solves the problem of insufficient heat exchange in existing systems, which leads to energy waste and improves energy utilization efficiency. The structural design that connects the compressor output end to the condenser and the evaporator output end to the compressor to form a refrigeration cycle achieves the function of coordinated operation of cooling and dehumidification with heating and temperature regulation. This solves the problem of poor coordination between dehumidification and temperature regulation in existing systems and improves the comfort of the indoor environment.

[0022] 3. This utility model achieves a stable bidirectional airflow circulation function by using a structural design in which the first fan and the second fan inside the casing drive the fresh air and exhaust air flow respectively. This solves the problem of poor airflow circulation affecting the fresh air introduction and stale air exhaust effect, and improves the indoor air replacement efficiency. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of the bidirectional heat recovery fresh air dehumidifier of this utility model;

[0025] Figure 2 This is a schematic diagram of the internal structure of the bidirectional heat recovery fresh air dehumidifier of this utility model;

[0026] Figure 3 For the present utility model Figure 2 A magnified view of the structure at point A in the middle;

[0027] Figure 4 This is a schematic diagram of the structure of the housing assembly of this utility model;

[0028] Figure 5 This is a schematic diagram of the cover plate assembly of this utility model.

[0029] In the diagram: 1. Shell assembly; 101. Shell; 102. Slide groove; 103. Threaded hole; 104. Drain hole; 105. Air outlet; 2. Cover plate assembly; 201. Cover plate; 202. Bolt; 3. Mounting block; 4. Slider; 5. Filter screen; 6. First fan; 7. Condenser; 8. Compressor; 9. Evaporator; 10. Mounting plate; 11. Heat exchanger; 12. Second fan. Detailed Implementation

[0030] 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 scope of protection of the present utility model.

[0031] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0032] This application discloses a bidirectional flow heat recovery fresh air dehumidifier. (Refer to...) Figures 1 to 5A bidirectional heat recovery fresh air dehumidifier includes a housing assembly 1 and a cover assembly 2. The housing assembly 1 includes a housing 101. The top of the housing 101 has four sliding grooves 102 and four threaded holes 103. The bottom plate of the housing 101 has a drain hole 104. Air vents 105 are provided on both sides of the housing 101. A slider 4 is slidably fitted in the sliding grooves 102. A filter screen 5 is fixedly connected to the outer surface of the slider 4. A first fan 6, a condenser 7, a compressor 8, and an evaporator 9 are fixedly installed in the housing 101 from right to left. An installation plate 10 is fixedly connected to the inner wall of the housing 101. A heat exchanger 11 is fixedly embedded in the installation plate 10. The output end of the compressor 8 is connected to the input end of the condenser 7. The output end of the evaporator 9 is connected to the input end of the compressor 8. Four installation blocks 3 are fixedly installed on the outer surface of the housing 101. The four installation blocks 3 are rectangularly distributed on the front and rear baffles of the housing 101. The installation blocks 3 are provided with installation holes. A second fan 12 is installed at the bottom of the inner wall of the housing 101. The second fan 12 is located on the left side of the installation plate 10.

[0033] The housing 101 provides an overall frame, the air vent 105 is the airflow inlet and outlet, the slide 102 cooperates with the slider 4 to realize the detachable installation of the filter screen 5; the cover plate 201 is fixed by bolts 202, which closes the top of the housing to ensure the airflow path is closed, and at the same time limits the filter screen and the mounting plate 10 to ensure structural stability.

[0034] The compressor 8 serves as the power source, driving the refrigerant to circulate between the condenser 7 (heat release and temperature rise) and the evaporator 9 (heat absorption and temperature drop), forming a continuous process of "cooling and dehumidifying → heating and temperature regulation". The core is to achieve energy transfer through the phase change of the refrigerant.

[0035] Mounting plate 10 fixes the position of heat exchanger 11, ensuring that fresh air and exhaust air are in full contact (not mixed) in the heat exchanger, efficiently completing heat exchange, reducing the energy consumption of fresh air treatment, and improving the energy efficiency ratio of the equipment.

[0036] The first fan 6 and the second fan 12 drive the fresh air and exhaust air respectively to ensure stable bidirectional airflow circulation; the drain hole 104 drains the condensate produced by the evaporator in time to avoid water accumulation; the mounting block 3 (with mounting holes) on the outside of the shell is used to fix the equipment and ensure the stability during operation.

[0037] The cover plate assembly 2 includes a cover plate 201, on which bolts 202 are threadedly connected. There are four bolts 202, and their ends are threaded into threaded holes 103. The bottom surface of the cover plate 201 overlaps with the top surface of the mounting plate 10 and the top surface of the filter screen plate 5, respectively.

[0038] Working principle:

[0039] Start-up phase: When the power is turned on, the compressor 8 starts the refrigeration cycle, and the first fan 6 (fresh air) and the second fan 12 (exhaust air) run synchronously.

[0040] Fresh air handling process: Outdoor fresh air enters from the left vent 105, passes through the filter screen 5 to intercept particulate matter, and is pushed by the first fan 6, passing through the following in sequence: evaporator 9 (cooling and dehydrating to the target humidity) → heat exchanger 11 (absorbing heat from the exhaust air and raising the temperature) → condenser 7 (further heating to a comfortable temperature) → and is sent into the room by the second fan 12.

[0041] Exhaust air treatment process: Indoor stale air is drawn in from the right-side air vent 105, and after the heat exchanger 11 transfers heat to the fresh air, it is cooled down. The low-temperature exhaust air passes through the evaporator 9 (further dehydration to reduce outdoor exhaust humidity) and is discharged outdoors by the first fan 6 under negative pressure.

[0042] Heat recovery and energy efficiency improvement: The fresh air absorbs more than 70% of the sensible heat of the exhaust air in the heat exchanger 11 (actual data), reducing the reheat energy consumption of the condenser 7. The exhaust air is dehumidified twice by the evaporator 9, reducing the outdoor dehumidification load.

[0043] Shutdown and maintenance: After turning off the power, drain hole 104 continues to drain residual condensate. Loosen bolt 202 to remove cover plate 201. The filter screen plate 5 can be pulled out to clean or repair internal components.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A bidirectional flow heat recovery fresh air dehumidifier, characterized in that, include: The housing assembly (1) includes a housing (101), the top of the housing (101) is provided with four sliding grooves (102) and four threaded holes (103), the bottom plate of the housing (101) is provided with drainage holes (104), and the two sides of the housing (101) are provided with air vents (105). A slider (4) is slidably fitted inside the groove (102), and a filter screen plate (5) is fixedly connected to the outer surface of the slider (4). The first fan (6), condenser (7), compressor (8) and evaporator (9) are fixedly installed in the housing (101) from right to left. An installation plate (10) is fixedly connected to the inner wall of the housing (101), and a heat exchanger (11) is fixedly embedded in the installation plate (10). The output end of the compressor (8) is connected to the input end of the condenser (7), and the output end of the evaporator (9) is connected to the input end of the compressor (8).

2. The bidirectional flow heat recovery fresh air dehumidifier according to claim 1, characterized in that: Four mounting blocks (3) are fixedly installed on the outer surface of the housing (101), and the four mounting blocks (3) are rectangularly distributed on the front and rear baffles of the housing (101).

3. The bidirectional flow heat recovery fresh air dehumidifier of claim 2, wherein: The mounting block (3) has mounting holes.

4. The bidirectional flow heat recovery fresh air dehumidifier of claim 1, wherein: It also includes a cover plate assembly (2), which includes a cover plate (201) on which bolts (202) are threadedly connected.

5. The bidirectional flow heat recovery fresh air dehumidifier of claim 4, wherein: There are four bolts (202), and their ends are threaded into the threaded holes (103).

6. The bidirectional flow heat recovery fresh air dehumidifier of claim 4, wherein: The bottom surface of the cover plate (201) overlaps with the top surface of the mounting plate (10) and the top surface of the filter screen plate (5), respectively.

7. The bidirectional flow heat recovery fresh air dehumidifier of claim 1, wherein: A second fan (12) is installed at the bottom of the inner wall of the housing (101), and the second fan (12) is located on the left side of the mounting plate (10).

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