Long-acting desiccant package for dual-cavity air conditioning system

Abstract

This utility model relates to the field of desiccant technology, specifically a long-lasting desiccant for a dual-cavity air conditioning system. The protective shell contains a filtration mechanism, which includes an interception section, a drying section, and an oil removal section. The drying section is fixedly located between the interception section and the oil removal section. The interception section is located on the refrigerant inflow side, and the oil removal section is located on the refrigerant outflow side. The interception section intercepts solid particles in the refrigerant and initially absorbs moisture from the refrigerant. The drying section absorbs moisture from the refrigerant. The oil removal section absorbs oil molecules from the refrigerant and isolates moisture from the refrigerant. The oil removal section isolates moisture from the refrigerant, preventing trace amounts of moisture from circulating with the refrigerant, while simultaneously adsorbing oil molecules from the refrigerant. The interception section, drying section, and oil removal section work together to ensure the cleanliness of the desiccant, preventing moisture and impurities from corroding internal components such as copper pipes and the compressor, thus extending the service life of the air conditioner.

Description

Technical Field

[0001] This utility model relates to the field of desiccant technology, and in particular to a long-lasting desiccant for dual-cavity air conditioning systems. Background Technology

[0002] A dual-chamber air conditioning system is an air conditioning system designed with two independent refrigerant circuits (dual chambers). It is primarily used to improve energy efficiency, enhance system stability, and adapt to the application requirements of large-capacity or multi-split systems (such as VRF). Its core feature is two independent refrigeration cycle chambers that can work collaboratively or alternately. A long-life desiccant is a key filter component in the air conditioning refrigeration system used for long-term adsorption of moisture and impurities, preventing ice blockage caused by moisture freezing in the refrigeration circuit.

[0003] However, most traditional long-lasting desiccant packs rely solely on desiccant to adsorb moisture in the refrigeration circuit. Without a graded adsorption layer or water-blocking layer, they cannot effectively intercept moisture, causing some moisture to circulate with the refrigerant, corroding internal components such as copper pipes and compressors, and shortening the lifespan of the air conditioner. Summary of the Invention

[0004] The main purpose of this invention is to provide a long-lasting drying package for dual-chamber air conditioning systems to solve the problems raised in related technologies.

[0005] To achieve the above objectives, according to one aspect of the present invention, a long-lasting drying package for a dual-cavity air conditioning system is provided, comprising a protective shell, wherein a filter mechanism is provided within the protective shell, the filter mechanism comprising an interception section, a drying section, and an oil removal section, the drying section being fixedly disposed between the interception section and the oil removal section, the interception section being located on the refrigerant inflow side, and the oil removal section being located on the refrigerant outflow side, the interception section being used to intercept solid particles in the refrigerant and to initially absorb moisture in the refrigerant; the drying section being used to absorb moisture in the refrigerant; and the oil removal section being used to absorb oil molecules in the refrigerant and to isolate moisture in the refrigerant.

[0006] Furthermore, the interception section includes an interception filter cylinder and an interception filter element located inside the interception filter cylinder.

[0007] Furthermore, the intercepting filter element includes several intercepting rings, several intercepting baffles, and several intercepting cavities. The intercepting rings are all fixedly disposed inside the intercepting filter cylinder, and the intercepting baffles are all fixedly disposed between two adjacent intercepting rings. The intercepting rings and intercepting baffles form an intercepting cavity.

[0008] Furthermore, the drying section includes a drying filter cylinder and a drying filter element located inside the drying filter cylinder.

[0009] Furthermore, the drying filter element includes several drying septa and several drying chambers, all of which are located within the drying septa.

[0010] Furthermore, the oil removal section includes an oil removal filter cylinder and an oil removal filter element located inside the oil removal filter cylinder.

[0011] Furthermore, the oil removal filter element includes several oil removal septa, and an oil removal chamber is formed between two adjacent oil removal septa.

[0012] Furthermore, a ring of padding is fixedly provided on the inner wall of the protective shell.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] This invention employs an interception section to intercept particulate impurities such as dust and metal fragments larger than 0.25mm in the refrigerant and to initially remove moisture. A drying section further intercepts particulate impurities such as dust and metal fragments larger than 0.15mm in the refrigerant and removes moisture again. An oil removal section isolates moisture in the refrigerant, preventing trace amounts of moisture from circulating with the refrigerant, while simultaneously adsorbing oil molecules from the refrigerant. The interception, drying, and oil removal sections work together to ensure the cleanliness of the desiccant, preventing moisture and impurities from corroding internal components such as copper pipes and the compressor, thus extending the service life of the air conditioner. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0016] Figure 2 This is a cross-sectional view of the present invention;

[0017] Figure 3 This is a schematic cross-sectional view of the interception part of this utility model;

[0018] Figure 4 This is a schematic cross-sectional view of the drying section of this utility model;

[0019] Figure 5 This is a schematic cross-sectional view of the degreasing section of this utility model.

[0020] Figure label:

[0021] 1. Protective shell; 2. Pad layer; 3. Filtering mechanism; 4. Interception section; 5. Drying section; 6. Oil removal section; 41. Interception filter cylinder; 42. Interception filter element; 421. Interception ring; 422. Interception partition; 423. Interception chamber; 51. Drying filter cylinder; 52. Drying filter element; 521. Drying partition; 522. Drying chamber; 61. Oil removal filter cylinder; 62. Oil removal filter element; 621. Oil removal partition; 622. Oil removal chamber. Detailed Implementation

[0022] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0023] This embodiment provides a long-lasting desiccant package for a dual-cavity air conditioning system, such as... Figure 1 As shown, the device includes a protective shell 1, inside which is a filter mechanism 3. The filter mechanism 3 includes an interception section 4, a drying section 5, and an oil removal section 6. The drying section 5 is fixedly disposed between the interception section 4 and the oil removal section 6. The interception section 4 is located on the refrigerant inflow side, and the oil removal section 6 is located on the refrigerant outflow side. The interception section 4 is used to intercept solid particles in the refrigerant and to initially absorb moisture in the refrigerant; the drying section 5 is used to absorb moisture in the refrigerant; and the oil removal section 6 is used to absorb oil molecules in the refrigerant and to isolate moisture in the refrigerant.

[0024] like Figure 2 As shown, the interception unit 4 includes an interception filter cylinder 41 and an interception filter element 42 located inside the interception filter cylinder 41.

[0025] The filter cylinder 41 is a 60-mesh fiber filter with a pore size of 0.25mm, used to intercept particulate impurities such as dust and metal shavings with a particle size greater than 0.25mm.

[0026] like Figure 3 As shown, the interception filter element 42 includes several interception rings 421, several interception partitions 422, and several interception cavities 423. The interception rings 421 are all fixedly disposed inside the interception filter cylinder 41, and the interception partitions 422 are all fixedly disposed between two adjacent interception rings 421. The interception rings 421 and the interception partitions 422 form an interception cavity 423.

[0027] The interception chamber 423 contains silica gel, a porous polymer material with a large number of polar hydroxyl groups on its surface and in its internal pores. These groups can form hydrogen bonds with water molecules. Water molecules in the refrigerant are captured by the surface tension of the silica gel pores and undergo capillary condensation in the pores. The lower the temperature, the more obvious the capillary condensation and the greater the amount of water molecules adsorbed, thus completing the initial removal of water.

[0028] Both the interception ring 421 and the interception baffle 422 are made of nylon fiber mesh, which is resistant to low temperatures and has high strength. They encapsulate the silicone and prevent it from leaking out.

[0029] The drying section 5 includes a drying filter cylinder 51 and a drying filter element 52 located inside the drying filter cylinder 51.

[0030] The drying filter cylinder 51 is a 100-mesh fiber filter with a pore size of 0.15mm. It is used to intercept particulate impurities such as dust and metal shavings with a particle size greater than 0.15mm, so as to prevent particulate impurities from clogging the throttling device or wearing out the compressor.

[0031] like Figure 4 As shown, the drying filter element 52 includes several drying partitions 521 and several drying chambers 522, all of which are located within the drying partitions 521.

[0032] The drying chamber 522 contains a molecular sieve. In this embodiment, a crystalline aluminosilicate with a regular microporous structure is preferred as the molecular sieve. The pore size is 0.3~2.0 nanometers, which only allows water molecules with smaller diameters to enter the microporous structure, thereby adsorbing water molecules inside the molecular sieve, while refrigerant, oil molecules and particulate impurities can pass through the gaps between the molecular sieves.

[0033] The drying separator 521 is also a nylon fiber mesh, which wraps the molecular sieve inside to prevent it from leaking out.

[0034] The oil removal section 6 includes an oil removal filter cylinder 61 and an oil removal filter element 62 located inside the oil removal filter cylinder 61.

[0035] The oil removal filter cylinder 61 is a non-woven fabric made of polypropylene fiber. The non-polar hydrocarbon chains of polypropylene cannot form hydrogen bonds or electrostatic interactions with polar water molecules, and the intermolecular forces are extremely weak. Water molecules have difficulty penetrating into the fiber interior. Polypropylene fiber has strong hydrophobicity, which can isolate moisture and prevent water molecules from passing through the oil removal section 6 and circulating with the refrigerant, thus corroding the copper pipes, compressor and other components inside the air conditioner.

[0036] like Figure 5 As shown, the oil removal filter element 62 includes a plurality of oil removal partitions 621, and an oil removal chamber 622 is formed between two adjacent oil removal partitions 621.

[0037] The oil removal chamber 622 is filled with a hydrophobic oil-absorbing resin. In this embodiment, polyalkyl acrylate is used as the hydrophobic oil-absorbing resin. Polyalkyl acrylate has strong hydrophobicity and strong oil absorption. While isolating moisture, it can absorb oil molecules in the refrigerant and prevent oil molecules from corroding the internal copper pipes, compressor and other components of the air conditioner.

[0038] The oil-absorbing septum 621 is also made of nylon fiber mesh, which encapsulates the hydrophobic oil-absorbing resin to prevent it from leaking out.

[0039] A ring of padding 2 is fixedly provided on the inner wall of the protective shell 1. The padding 2 is fixedly connected to the intercepting filter cylinder 41, the drying filter cylinder 51, and the oil removal filter cylinder 61. The padding 2 is made of spunbond nonwoven fabric, which has high strength and is not easy to break. It wraps the filter mechanism 3 inside to prevent the silica gel, molecular sieve and hydrophobic oil-absorbing resin inside from leaking out.

[0040] In this embodiment, a non-polar refrigerant, such as tetrafluoroethane R134a, is used, which can pass smoothly through materials such as silica gel, molecular sieves, and hydrophobic oil-absorbing resins, allowing the desiccant to be used for a long time.

[0041] The desiccant is installed in the pipe at the condenser outlet. When the refrigerant passes through the filter mechanism 3, dust, metal particles and other impurities with a particle size greater than 0.25mm are intercepted by the intercepting filter cylinder 41, and some moisture is adsorbed by the intercepting filter element 42; dust, metal particles and other impurities with a particle size greater than 0.15mm are intercepted by the drying filter cylinder 51, and most of the moisture is adsorbed by the drying filter element 52; the remaining trace water molecules in the desiccant are intercepted by the oil removal filter cylinder 61 and the oil removal filter element 62 to prevent them from circulating with the refrigerant, and the oil molecules in the refrigerant are adsorbed by the oil removal filter element 62. The refrigerant passing through the filter mechanism 3 is a pure substance.

[0042] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A long-lasting desiccant package for a dual-chamber air conditioning system, comprising a protective shell (1), characterized in that, The protective shell (1) is provided with a filter mechanism (3), which includes an interception part (4), a drying part (5) and an oil removal part (6). The drying part (5) is fixed between the interception part (4) and the oil removal part (6). The interception part (4) is located on the side where the refrigerant flows in, and the oil removal part (6) is located on the side where the refrigerant flows out. The interception part (4) is used to intercept solid particles in the refrigerant and to initially absorb moisture in the refrigerant. The drying part (5) is used to absorb moisture in the refrigerant. The oil removal part (6) is used to absorb oil molecules in the refrigerant and to isolate moisture in the refrigerant.

2. The long-lasting desiccant pack for a dual-chamber air conditioning system according to claim 1, characterized in that, The interception section (4) includes an interception filter cylinder (41) and an interception filter element (42) located inside the interception filter cylinder (41).

3. The long-lasting desiccant pack for a dual-cavity air conditioning system according to claim 2, characterized in that, The intercepting filter element (42) includes several intercepting rings (421), several intercepting baffles (422), and several intercepting cavities (423). The intercepting rings (421) are all fixedly disposed inside the intercepting filter cylinder (41), and the intercepting baffles (422) are all fixedly disposed between two adjacent intercepting rings (421). The intercepting rings (421) and the intercepting baffles (422) form an intercepting cavity (423).

4. The long-lasting desiccant pack for a dual-chamber air conditioning system according to claim 1, characterized in that, The drying section (5) includes a drying filter cylinder (51) and a drying filter element (52) located inside the drying filter cylinder (51).

5. The long-lasting desiccant pack for a dual-chamber air conditioning system according to claim 4, characterized in that, The drying filter element (52) includes several drying partitions (521) and several drying chambers (522), all of which are located within the drying partitions (521).

6. The long-lasting desiccant pack for a dual-chamber air conditioning system according to claim 1, characterized in that, The oil removal section (6) includes an oil removal filter cylinder (61) and an oil removal filter element (62) located inside the oil removal filter cylinder (61).

7. The long-lasting desiccant pack for a dual-cavity air conditioning system according to claim 6, characterized in that, The oil removal filter element (62) includes a plurality of oil removal septa (621), and an oil removal chamber (622) is formed between two adjacent oil removal septa (621).

8. The long-lasting desiccant pack for a dual-chamber air conditioning system according to claim 1, characterized in that, The inner wall of the protective shell (1) is fixedly provided with a ring of padding (2).

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