Copper capillary tube for refrigeration equipment

Abstract

The utility model discloses a copper capillary tube for refrigeration equipment, which belongs to the technical field of refrigeration equipment accessories and comprises a support and a copper capillary tube body, a filter component is arranged at the water inlet end of the copper capillary tube body, and the copper capillary tube body is arranged in a spiral manner. The filtering assembly comprises a sleeve fixedly connected with the copper capillary tube body, a communicating groove is formed in the end, away from the copper capillary tube body, of the sleeve, a connecting pipe communicating with the communicating groove is arranged at the outer end of the sleeve, and the copper capillary tube body communicates with the communicating groove. According to the scheme, impurities and ice crystals in refrigerants can be intercepted through the arranged filter cartridge, the probability that the impurities and the ice crystals in the copper capillary tube body block flowing of the refrigerants or cause rust formation and blockage in the tube is reduced, meanwhile, a bolt and nut fixing mode is adopted, and the limitation of the filter cartridge is relieved; the filter cartridge is directly taken out to clean impurities accumulated in the filter cartridge, so that efficient silt discharge is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigeration equipment accessories, and more specifically to a copper capillary tube for refrigeration equipment. Background Art

[0002] The role of the capillary tube in the air conditioning refrigeration system is to convert the high-pressure liquid refrigerant coming out of the condenser into a low-pressure liquid refrigerant through throttling expansion, and then enter the evaporator. The capillary tube is generally used in small Freon refrigeration devices below 20kW, and the capillary tube is made of copper tube.

[0003] Chinese Patent Authorization Announcement No.: CN214746605U discloses a capillary tube assembly for refrigeration and air-conditioning equipment. This solution facilitates the rapid winding and stable tightening and pressing of the capillary tube, reduces the disorderly phenomenon, and can effectively prevent the capillary tube from shaking and colliding with other components, reduce the generation of factors such as collision noise, and use elastic pressing to avoid the risk of damage to the capillary tube caused by direct hard pressing, which is convenient for use.

[0004] Since the inner diameter of the capillary tube is small, it is easy to be blocked by impurities or ice crystals, resulting in the refrigerant being unable to flow normally, affecting the refrigeration effect. In the current prior art, when the capillary tube is blocked, the capillary tube needs to be disassembled and cleaned. However, the capillary tube is small in size and the disassembly operation is difficult, which can easily cause damage to the capillary tube. In view of the above problems, a copper capillary tube for refrigeration equipment is proposed. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide a copper capillary for refrigeration equipment, which can intercept impurities and ice crystals in the refrigerant through the filter cartridge provided in this scheme, thereby reducing the probability of impurities and ice crystals in the copper capillary tube body hindering the flow of refrigerant or causing rust blockage in the tube. At the same time, the fixing method of bolts and nuts is adopted, and the filter cartridge can be directly taken out to clean the impurities accumulated inside by removing the restriction of the filter cartridge, thereby achieving efficient silt removal.

[0007] 2. Technical solution

[0008] To solve the above problems, the utility model adopts the following technical solutions.

[0009] A copper capillary tube for refrigeration equipment comprises a bracket and a copper capillary tube body, a filter assembly is arranged at the water inlet end of the copper capillary tube body, and the copper capillary tube body is arranged in a spiral shape;

[0010] The filter assembly includes a sleeve fixedly connected to a copper capillary body, a connecting groove is provided at one end of the sleeve away from the copper capillary body, and a connecting pipe connected to the connecting groove is provided at the outer end of the sleeve, the copper capillary body is connected to the connecting groove, and a filter cartridge matching the connecting groove is arranged inside the sleeve.

[0011] Furthermore, a reserved hole communicating with the connecting pipe is provided at the outer end of the filter cartridge, and the reserved hole corresponds to the position of the connecting pipe.

[0012] Furthermore, a connection cover is fixedly connected to the outer end of the filter cartridge, and the connection cover covers the opening of the communicating groove.

[0013] Furthermore, the communicating groove is composed of a first through hole and a second through hole, the first through hole is connected to the second through hole, and the aperture of the first through hole is smaller than the aperture of the second through hole, and the filter cartridge abuts against the inner wall of the first through hole.

[0014] Furthermore, the filter assembly also includes bolts, the outer ends of the connecting cover and the sleeve are fixedly connected to connecting blocks, a pair of connecting blocks are provided with through holes, the bolts pass through a pair of through holes, and nuts are threadedly connected to the outer sides of the bolts.

[0015] Furthermore, a pair of gaskets is provided on the outer sleeve of the bolt, and the pair of gaskets are respectively abutted against the outer ends of a pair of connecting blocks.

[0016] Furthermore, a plurality of card blocks are installed on the inner side of the bracket, and each of the plurality of card blocks is provided with a card slot matching the copper capillary body.

[0017] 3. Beneficial effects

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] This solution can intercept impurities and ice crystals in the refrigerant through the filter cartridge, reducing the probability of impurities and ice crystals hindering the flow of refrigerant or causing rust blockage in the copper capillary tube. At the same time, the fixing method of bolts and nuts is adopted to remove the restrictions of the filter cartridge and directly remove the filter cartridge to clean the impurities accumulated inside, thereby achieving efficient silt removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the filter assembly of the utility model;

[0022] Figure 3 It is a cross-sectional structural schematic diagram of the filter assembly of the utility model;

[0023] Figure 4 This is a schematic diagram of the explosion structure of the filter assembly of the utility model;

[0024] Figure 5 For this utility model Figure 4 Enlarged structural diagram at A in the middle.

[0025] Description of the numbers in the figure:

[0026] 1. Bracket; 2. Block; 3. Copper capillary body; 4. Filter assembly; 41. Sleeve; 42. Connecting pipe; 43. Connecting cover; 44. Filter cartridge; 45. Connecting block; 46. Bolt; 47. Gasket; 48. Nut. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0028] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" 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 present utility model can be understood according to specific circumstances.

[0030] Example:

[0031] See also Figure 1-4 A copper capillary tube for refrigeration equipment comprises a bracket 1 and a copper capillary tube body 3, a filter assembly 4 is arranged at the water inlet end of the copper capillary tube body 3, and the copper capillary tube body 3 is arranged in a spiral shape;

[0032] The filter assembly 4 includes a sleeve 41 fixedly connected to the copper capillary body 3, a connecting groove is provided at one end of the sleeve 41 away from the copper capillary body 3, and a connecting pipe 42 connected to the connecting groove is provided at the outer end of the sleeve 41, the copper capillary body 3 is connected to the connecting groove, and a filter cartridge 44 matching the connecting groove is arranged inside the sleeve 41, and a plurality of evenly distributed filter holes are provided at the outer end of the filter cartridge 44.

[0033] In this solution, the connecting pipe 42 and one end of the copper capillary body 3 are connected to the evaporator and the outdoor unit respectively, so as to throttle and reduce the pressure of the high-pressure Freon refrigerant from the condenser into a low-pressure Freon refrigerant, which then vaporizes and absorbs heat in the evaporator to realize the refrigeration process.

[0034] When the refrigerant enters the sleeve 41 through the connecting pipe 42, the filter cylinder 44 can intercept impurities and ice crystals in the refrigerant. The filtered refrigerant is transported through the copper capillary body 3, which plays an effective filtering role and reduces the probability of impurities and ice crystals in the copper capillary body 3 hindering the flow of refrigerant or causing rust blockage in the tube.

[0035] See also Figure 2-4 The outer end of the filter cartridge 44 is provided with a reserved hole connected to the connecting pipe 42, and the reserved hole corresponds to the position of the connecting pipe 42, so that the refrigerant at the connecting pipe 42 can smoothly enter the filter cartridge 44, thereby achieving the filtering effect.

[0036] In this embodiment, a connection cover 43 is fixedly connected to the outer end of the filter cartridge 44 . The connection cover 43 covers the opening of the communication groove. The connection cover 43 is used to close the communication groove.

[0037] See also Figure 3 The connecting groove is composed of a first through hole and a second through hole. The first through hole is connected to the second through hole, and the aperture of the first through hole is smaller than the aperture of the second through hole. The filter cartridge 44 abuts against the inner wall of the first through hole. Since the filter cartridge 44 abuts against the inner wall of the first through hole, the refrigerant discharged from the connecting pipe 42 can smoothly enter the filter cartridge 44 for filtration. However, the filtered refrigerant can be discharged into the second through hole through the external filter hole, and finally discharged through the copper capillary body 3.

[0038] See also Figure 4-5 The filter assembly 4 also includes a bolt 46. The outer ends of the connecting cover 43 and the sleeve 41 are fixedly connected to the connecting blocks 45. A pair of connecting blocks 45 are each provided with a through hole. The bolt 46 passes through the pair of through holes. The outer surface of the bolt 46 is threadedly connected to a nut 48. The outer surface of the bolt 46 is provided with a pair of gaskets 47. The pair of gaskets 47 are respectively abutted against the outer ends of the pair of connecting blocks 45.

[0039] This solution can fix the connection cover 43 and the sleeve 41 by using the mutual cooperation of the bolts 46 and the nuts 48. The staff can regularly disassemble and clean the filter cartridge 44. During the cleaning process of the filter cartridge 44, the connection cover 43 and the sleeve 41 can be released from the restriction by removing the nuts 48, and then the filter cartridge 44 can be removed from the sleeve 41 to clean the impurities trapped in the filter cartridge 44 without disassembling the entire copper capillary body 3.

[0040] See also Figure 1 A plurality of card blocks 2 are installed on the inner side of the bracket 1, and each of the plurality of card blocks 2 is provided with a card slot matching the copper capillary body 3.

[0041] In this embodiment, the bracket 1 is fixed by using screws, and the spirally arranged copper capillary body 3 is fixed to the slot of the copper capillary body 3, which can fix the copper capillary body 3. The multi-point fixing method can reduce the probability of the copper capillary body 3 moving or falling off due to external force.

[0042] Working principle: by connecting the connecting pipe 42 and one end of the copper capillary body 3 to the evaporator and the outdoor unit respectively, the high-pressure Freon refrigerant from the condenser is throttled and reduced in pressure to a low-pressure Freon refrigerant, and then vaporized and absorbed heat in the evaporator to realize the refrigeration process. When the refrigerant enters the sleeve 41 through the connecting pipe 42, the filter cartridge 44 is capable of intercepting impurities and ice crystals in the refrigerant, and the filtered refrigerant is transported through the copper capillary body 3 to play an effective filtering role. The staff can regularly disassemble and clean the filter cartridge 44. During the cleaning process of the filter cartridge 44, the connection cover 43 and the sleeve 41 can be released by removing the nut 48, and then the filter cartridge 44 is removed from the sleeve 41 to clean the impurities trapped in the filter cartridge 44.

[0043] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A copper capillary tube for refrigeration equipment, comprising a bracket (1) and a copper capillary tube body (3), characterized in that: The water inlet end of the copper capillary body (3) is provided with a filter assembly (4), and the copper capillary body (3) is arranged in a spiral shape; The filter assembly (4) comprises a sleeve (41) fixedly connected to the copper capillary body (3); a connecting groove is provided at one end of the sleeve (41) away from the copper capillary body (3); a connecting pipe (42) connected to the connecting groove is provided at the outer end of the sleeve (41); the copper capillary body (3) is connected to the connecting groove; and a filter cartridge (44) matching the connecting groove is provided inside the sleeve (41).

2. The copper capillary tube for refrigeration equipment according to claim 1, characterized in that: The outer end of the filter cartridge (44) is provided with a reserved hole which is in communication with the connecting pipe (42), and the reserved hole corresponds to the position of the connecting pipe (42).

3. The copper capillary tube for refrigeration equipment according to claim 1, characterized in that: The outer end of the filter cartridge (44) is fixedly connected with a connection cover (43), and the connection cover (43) covers the opening of the communication groove.

4. The copper capillary tube for refrigeration equipment according to claim 1, characterized in that: The communicating groove is composed of a first through hole and a second through hole, the first through hole is connected to the second through hole, and the aperture of the first through hole is smaller than the aperture of the second through hole, and the filter cartridge (44) abuts against the inner wall of the first through hole.

5. The copper capillary tube for refrigeration equipment according to claim 3, characterized in that: The filter assembly (4) further comprises a bolt (46), the outer ends of the connection cover (43) and the sleeve (41) are fixedly connected to a connection block (45), a pair of the connection blocks (45) are provided with through holes, the bolt (46) passes through the pair of through holes, and a nut (48) is threadedly connected to the outer surface of the bolt (46).

6. The copper capillary tube for refrigeration equipment according to claim 5, characterized in that: A pair of washers (47) are provided in the outer sleeve of the bolt (46), and the pair of washers (47) are respectively abutted against the outer ends of a pair of connecting blocks (45).

7. The copper capillary tube for refrigeration equipment according to claim 1, characterized in that: A plurality of card blocks (2) are installed on the inner side of the bracket (1), and each of the plurality of card blocks (2) is provided with a card slot matching the copper capillary body (3).

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