Long-acting air conditioner distributor with multiple paths of parallel refrigerants

Abstract

The long-acting air conditioner distributor comprises a shell, an opening is formed in one end of the shell, an end plate is arranged at the other end of the shell, an inlet pipe is installed on the opening side of the shell, a plurality of outlets are formed in the end plate, protective sleeves are installed in the outlets, a filter cylinder is arranged on the inner side of the end plate, a mixing cavity is formed in the inner side of the filter cylinder, and a distribution cavity is formed in the outer side of the filter cylinder; a front-end filter screen is arranged on the side, close to the inlet pipe, of the filter cartridge, a rear-end filter screen is arranged on the lower side of the front-end filter screen and arranged on the inner wall or the outer wall of the filter cartridge, and a plurality of hollow holes corresponding to the rear-end filter screen are formed in the side wall of the filter cartridge; the mesh diameter of the front-end filter screen is larger than that of the rear-end filter screen, the inner end of the filter cartridge inlet pipe extends into the filter cartridge, and a gap is reserved between the tail end of the inlet pipe and the front-end filter screen. According to the distributor, the medium filtering effect is good, blockage is not likely to happen, the service life of the distributor is prolonged, the protective sleeve can directly position the branch pipe in the later assembling process, the branch pipe is effectively supported, and stability is good.

Description

Technical Field

[0001] The invention belongs to the technical field of refrigeration equipment, and in particular relates to a long-acting air-conditioning distributor with multiple parallel refrigerant paths. Background Art

[0002] An air conditioner distributor with multiple parallel refrigerant channels is generally a refrigeration equipment component with a fixed liquid inlet pipe at one end and several branch pipes installed at the other end. When working, the refrigerant enters the distributor from the liquid inlet pipe and flows out from the branch pipe at the other end. In the distributor products in the prior art, when the branch pipes are installed and fixed later, the branch pipes and the distributor body are not easy to fix, and there is also the problem of insufficient structural stability. In addition, after long-term use, impurities carried by the refrigerant medium are easily retained or accumulated inside the branch pipes, causing unstable refrigerant flow and even pipeline blockage. Although some existing distributor products are equipped with filters, the filtering capacity is insufficient, and the filter itself is also prone to blockage, resulting in a short service life of the distributor, which requires regular disassembly, maintenance or replacement, which is time-consuming and laborious. Therefore, it is necessary to improve the distributor in view of the above-mentioned defects. Summary of the invention

[0003] In view of this, the present invention aims to overcome the defects in the prior art and proposes a long-term air-conditioning distributor with multiple parallel refrigerant paths.

[0004] To achieve the above object, the technical solution created by the present invention is implemented as follows:

[0005] A long-term air-conditioning distributor with multiple parallel refrigerant channels comprises a shell, one end of which is provided with an opening, and the other end of which is provided with an end plate, an inlet pipe is installed on the open side of the shell, a plurality of outlets are provided on the end plate, a sheath pipe is installed in the outlet, and a filter cartridge is provided on the inner side of the end plate, a mixing chamber is formed on the inner side of the filter cartridge, and a distribution chamber is formed on the outer side; a front-end filter screen is provided on the side of the filter cartridge close to the inlet pipe, and a rear-end filter screen is provided on the lower side of the front-end filter screen, the rear-end filter screen is arranged on the inner wall or the outer wall of the filter cartridge, and a plurality of hollow holes are provided on the side wall of the filter cartridge corresponding to the rear-end filter screen; the mesh diameter of the front-end filter screen is larger than the mesh diameter of the rear-end filter screen, the inner end of the inlet pipe of the filter cartridge extends into the filter cartridge, and a gap is left between the end of the inlet pipe and the front-end filter screen.

[0006] Furthermore, the hollow hole on the side wall of the filter cartridge is more than 5 mm away from the bottom end of the filter cartridge.

[0007] Furthermore, the sheath tube includes an inner extension section extending into the interior of the outer shell, and a protective section extending out of the outer shell.

[0008] Furthermore, a seal is provided between the inlet pipe and the filter cartridge.

[0009] Furthermore, the rear end filter is cylindrical, and the cylindrical rear end filter is inserted into the interior of the filter cartridge, and its outer circumference is in contact with the inner wall of the filter cartridge, or the cylindrical rear end filter is mounted on the outside of the filter cartridge, and its inner circumference is in contact with the outer wall of the filter cartridge.

[0010] Furthermore, the outlets are evenly distributed around the axis of the shell.

[0011] Furthermore, the housing includes a front end shell and a rear end shell detachably mounted on the front end shell, and the end plate is located at an end of the rear end shell away from the front end shell.

[0012] Furthermore, the front end shell is provided with a front end connecting portion on the side facing the rear end shell, and the rear end shell is provided with a rear end connecting portion on the side facing the front end shell, and the connecting portions of the front and rear end shells are fixed by a connecting piece.

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

[0014] The invention creates a filter cartridge in the housing and extends the inlet pipe to the inside of the filter cartridge, so that the medium is filtered by the front filter screen and the rear filter screen, then enters the distributor and is discharged through the outlet, effectively avoiding the problem of medium stratification flow, while also improving the effect of medium filtration, not prone to clogging, the distributor can work stably for a long time and has a long service life. In addition, a sheath pipe is set on the outlet of the end plate, which can directly position the branch pipe during later assembly and effectively support the branch pipe, thereby improving the stability of the connection between the branch pipe and the housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0016] Figure 1 A schematic diagram of the structure created by the present invention;

[0017] Figure 2 for Figure 1 Schematic diagram after removing the front and rear filters;

[0018] Figure 3 This is a schematic diagram of an embodiment of the present invention in which the housing is a detachable structure;

[0019] Figure 4 for Figure 3 A schematic diagram of the front end housing portion;

[0020] Figure 5 for Figure 3 Schematic diagram of the middle and rear end shell parts. DETAILED DESCRIPTION

[0021] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0023] In the description of the invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to specific circumstances.

[0024] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0025] A long-term air conditioning distributor with multiple parallel refrigerant channels, such as Figures 1 to 5 As shown, it includes a shell 1, one end of which is provided with an opening, and the other end is provided with an end plate 2, an inlet pipe 3 is installed on the open side of the shell, a plurality of outlets are provided on the end plate, a sheath pipe 4 is installed in the outlet, and a filter cartridge 5 is provided on the inner side of the end plate, a mixing chamber is formed on the inner side of the filter cartridge, and a distribution chamber 6 is formed on the outer side; a front end filter screen 7 is provided on the side of the filter cartridge close to the inlet pipe, and a rear end filter screen 8 is provided on the lower side of the front end filter screen, the rear end filter screen is arranged on the inner wall or outer wall of the filter cartridge, and a plurality of hollow holes 9 are opened on the side wall of the filter cartridge corresponding to the rear end filter screen.

[0026] The mesh diameter of the front filter is larger than that of the rear filter, so that the front filter performs primary filtration on the medium and the rear filter performs secondary filtration, forming a two-stage filtration system, which not only improves the filtering effect, but also avoids the clogging of the filter (especially the front filter), thereby extending the service life of the distributor. The inner end of the filter cartridge inlet pipe extends into the filter cartridge, and a gap is left between the end of the inlet pipe and the front filter, and a front filter limit block 10 is provided on the inner wall of the filter cartridge to ensure that the front filter is installed in place.

[0027] In order to facilitate assembly and disassembly, in an optional embodiment, the housing includes a front housing 14 and a rear housing 15 detachably mounted on the front housing, that is, the housing is a detachable structural design, and the end plate is located at one end of the rear housing away from the front housing. Specifically, a front connecting portion 17 is provided on the side of the front housing facing the rear housing, and a rear connecting portion 18 is provided on the side of the rear housing facing the front housing, and the connecting portions of the front and rear housings are fixed by a connecting member 16. As an example, the connecting member can be a screw.

[0028] Usually, each outlet is evenly distributed around the axis of the shell. The hollow hole on the side wall of the filter cartridge is more than 5 mm away from the bottom of the filter cartridge. The sheath tube includes an inner extension section 11 extending into the shell, and a protective section 12 extending out of the shell. When assembling the branch pipe later, the branch pipe can be directly inserted into the sheath tube. Since the position between the sheath tube and the shell is fixed, the position and posture between the branch pipe and the shell do not need to be adjusted. The branch pipe can be directly welded or fixed to the sheath tube by other connection methods. The sheath tube effectively increases the joint area between the branch pipe and the distributor, avoids stress concentration of the branch pipe at the end plate, and the branch pipe is not prone to deformation such as bending due to stress, and has good structural stability.

[0029] In an optional embodiment, a seal 13 is provided between the inlet pipe and the filter cartridge. Specifically, a sealing groove can be provided on the inner wall of the filter cartridge, and the seal is installed in the sealing groove. In particular, when the front and rear end shells are detachably connected, the inlet pipe is inserted into the filter cartridge while the front and rear end shells are assembled and docked, and reliable sealing is achieved through the seal. When the distributor is working, the refrigerant medium enters the shell through the inlet pipe, and after being filtered by the front and rear filter screens of the filter cartridge, it will be discharged to the distribution chamber through the hollow hole, and then discharged through the outlet (installed branch pipe). In this process, the medium is not only fully mixed, but also effectively filtered.

[0030] The rear filter screen is cylindrical, and the rear filter screen is inserted into the filter cartridge, and its outer circumference is in contact with the inner wall of the filter cartridge, or the rear filter screen is mounted on the outside of the filter cartridge, and its inner circumference is in contact with the outer wall of the filter cartridge. The hollow holes of the filter cartridge are designed on the side wall, and the hollow holes are more than 5mm away from the bottom of the filter cartridge, and the sheath tube has an inner extension section, which effectively improves the flow disturbance ability of the distributor. In the process of medium distribution through the distributor, combined with the filtering and mixing effects of the filter screen, the stratified flow of the medium can be effectively avoided. At the same time, the filter screen can effectively filter the medium to avoid the blockage of the branch pipe to the greatest extent.

[0031] The invention creates a filter cartridge in the housing and extends the inlet pipe to the inside of the filter cartridge, so that the refrigerant medium is filtered by the front filter screen and the rear filter screen in turn, then enters the distributor and is discharged through the outlet, effectively avoiding the problem of medium stratification flow, while also improving the effect of medium filtration, not prone to clogging, and extending the service life of the distributor. In addition, a sheath pipe is set on the outlet of the end plate, which can directly position the branch pipe during later assembly and effectively support the branch pipe, thereby improving the stability of the connection between the branch pipe and the housing.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A long-term air conditioning distributor with multiple parallel refrigerant channels, characterized in that: It comprises an outer shell, one end of which is provided with an opening, and the other end is provided with an end plate, an inlet pipe is installed on the open side of the outer shell, a plurality of outlets are provided on the end plate, a sheath pipe is installed in the outlet, and a filter cartridge is provided on the inner side of the end plate, a mixing chamber is formed on the inner side of the filter cartridge, and a distribution chamber is formed on the outer side; a front end filter screen is provided on the side of the filter cartridge close to the inlet pipe, and a rear end filter screen is provided on the lower side of the front end filter screen, the rear end filter screen is arranged on the inner wall or the outer wall of the filter cartridge, and a plurality of hollow holes are provided on the side wall of the filter cartridge corresponding to the rear end filter screen; the mesh diameter of the front end filter screen is larger than the mesh diameter of the rear end filter screen, the inner end of the inlet pipe of the filter cartridge extends into the filter cartridge, and a gap is left between the end of the inlet pipe and the front end filter screen.

2. A multi-channel long-term air conditioning distributor for refrigerants according to claim 1, characterized in that: The hollow holes on the side wall of the filter cartridge are more than 5mm away from the bottom of the filter cartridge.

3. The multi-channel long-term air conditioning distributor for refrigerants according to claim 1 is characterized in that: The sheath tube comprises an inner extension section extending into the interior of the shell, and a protection section extending out of the shell.

4. The multi-channel long-term air conditioning distributor for refrigerants according to claim 1 is characterized in that: A seal is provided between the inlet pipe and the filter cartridge.

5. The multi-channel long-term air conditioning distributor for refrigerants according to claim 1 is characterized in that: The rear filter screen is cylindrical and inserted into the filter cartridge, with its outer circumference fitting against the inner wall of the filter cartridge, or the rear filter screen is sleeved on the outside of the filter cartridge, with its inner circumference fitting against the outer wall of the filter cartridge.

6. The multi-channel long-term air conditioning distributor for refrigerants according to claim 1 is characterized in that: The outlets are evenly distributed around the axis of the shell.

7. The multi-channel long-term air conditioning distributor for refrigerants according to claim 1 is characterized in that: The housing comprises a front end housing and a rear end housing detachably mounted on the front end housing, and the end plate is located at an end of the rear end housing away from the front end housing.

8. The multi-channel long-term air conditioning distributor for refrigerants according to claim 7, characterized in that: The front end shell is provided with a front end connecting portion on the side facing the rear end shell, and the rear end shell is provided with a rear end connecting portion on the side facing the front end shell. The connecting portions of the front and rear end shells are fixed by a connecting piece.

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