Anti-blocking distributor device

Abstract

The utility model relates to the technical field of refrigeration machinery, in particular to an anti-blocking distributor device. In the prior art, a distributor head is provided with a big-end-up vertical integrated stepped hole for positioning, when a pipe is welded with a welding material, wettability is good, permeability is excellent, and welding flux is extremely prone to flowing back to the inner wall of a pipe opening of a branch pipe under the capillary action to form semi-blocking or full-blocking. An anti-blocking distributor device is characterized in that an expanding annular groove is formed in a distributor head and located on the lower side of a first flow guide hole, an insert made of different materials is pressed between the distributor head and a nozzle, and a flow guide structure is arranged on the insert; a second flow guide hole coaxial with the first flow guide hole is formed in the embedded sheet; and a fastening ring is arranged in the middle or on the circumference of the insert. The anti-blocking device is reasonable in structure, and due to the fact that the embedded pieces made of different materials are arranged and the wettability of the different materials to the welding flux is different, the phenomenon of backflow of the welding flux is eradicated, and the anti-blocking function is achieved. By additionally arranging the expanding ring groove, the capillary action and the liquid surface tension are weakened through the gap of the ring groove, and excessive permeation of the welding flux is prevented.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration machinery technology, and more specifically to an anti-clogging distributor device. Background Technology

[0002] A distributor used in refrigeration and air conditioning piping systems thoroughly mixes the gas-liquid two-phase refrigerant and then supplies it evenly and in equal amounts to the evaporator, ensuring uniform mixing of the gas-liquid two-phase refrigerant and its distribution into each branch. During operation, the refrigeration equipment circulates the high-pressure, high-speed gas-liquid two-phase refrigerant within each pipeline for cooling; ensuring uniform distribution in each pipeline is crucial for optimal cooling performance. In existing technologies, such as... Figure 5 As shown, the branch pipes for conveying liquid need to be welded. The distributor head is generally equipped with a stepped hole that is larger at the top and smaller at the bottom, which is vertically integrated for positioning. The pipe is directly welded to this hole. Because the distributor is generally made of copper, the pipe has good wettability and excellent permeability when welded with the welding material. Under capillary action, the solder is very easy to flow back to the inner wall of the branch pipe opening, forming a partial or complete blockage. This affects the flow area, causes differences in refrigerant flow in each pipeline, affects the cooling effect, and also affects the service life. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a reasonably structured and effective anti-clogging distributor device.

[0004] A clog-resistant distributor device includes a distributor head, a nozzle, and a distributor. The distributor head has multiple first guide holes. A non-conforming insert is pressed between the distributor head and the nozzle. The insert has a guide structure extending from the center to both sides. An expansion-type annular groove is provided on the lower side of the first guide holes. The insert has a second guide hole coaxial with the first guide holes. A positioning structure is provided on the second guide hole. The diameter of the second guide hole is larger than that of the first guide hole. A fastening ring is provided in the center or around the circumference of the insert.

[0005] This practical structure is reasonable. By setting up inserts made of different materials, when welding the pipe, distributor head and nozzle, the difference in wettability of the different materials to the solder prevents the solder backflow and achieves the anti-clogging function.

[0006] By adding an expanded annular groove, the gap between the annular grooves is used to weaken capillary action and liquid surface tension, preventing excessive solder penetration and ensuring the flow area.

[0007] As a further improvement and supplement to the above solution, this utility model also includes the following additional technical features:

[0008] The cross-section of the flow guiding structure is V-shaped, resulting in good flow guiding effect.

[0009] The insert is made of brass, which has poor wettability and permeability, so the welding fluid will not flow back.

[0010] The insert is made of stainless steel, and the second guide hole is located inside the protruding boss. A tapered connecting mechanism is provided on the boss and the insert body. Stainless steel has poor wettability and permeability, preventing backflow of the welding fluid.

[0011] The insert is equipped with a positioning ring to ensure that the insert is positioned correctly.

[0012] The distributor is an impeller, which mixes the gas and liquid refrigerants evenly.

[0013] The following beneficial effects can be achieved by using this utility model:

[0014] This practical structure is reasonable. By setting up inserts made of different materials, the difference in wettability of different materials to the solder during welding can prevent solder backflow and achieve the anti-clogging function.

[0015] By adding an expanded annular groove, the gap between the annular grooves is used to weaken capillary action and liquid surface tension, preventing excessive solder penetration and ensuring the flow area. Attached Figure Description

[0016] Figure 1 This is a front view of the first embodiment of this utility model.

[0017] Figure 2 This is a front view of the second embodiment of this utility model.

[0018] Figure 3 This is a top view of the first and second embodiments of this utility model.

[0019] Figure 4 This is a partial enlarged view of point A in the second embodiment of this utility model.

[0020] Figure 5 This is a schematic diagram of the existing technology. Detailed Implementation

[0021] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0022] like Figure 1-4 As shown, this utility model is a blockage-proof distributor device.

[0023] The anti-clogging distributor device described in this embodiment includes a distributor head 1, a nozzle 2, and a distributor 3. The distributor head 1 and the nozzle 2 are cylindrical structures. The nozzle 2 is fitted inside the distributor head 1, and the distributor 3 is fitted inside the nozzle 2. The distributor head 1 has multiple annular, evenly distributed first guide holes 11. A non-conforming insert 4 is pressed between the distributor head 1 and the nozzle 2. The insert 4 has a guide structure 41 extending from the center to both sides to guide the refrigerant from the center to both sides. An expansion-type annular groove 12 is provided on the lower side of the first guide holes 11. The insert 4 has a second guide hole 42 coaxial with the first guide holes 11. The second guide hole 42 has a positioning structure. The positioning structure is a stepped hole structure that is larger at the top and smaller at the bottom, and is vertically integrated. The diameter of the second guide hole 42 is larger than that of the first guide hole 11. Both the first guide hole 11 and the second guide hole 42 have chamfered structures. A fastening ring 6 is provided in the middle or around the circumference of the insert 4 for pressing and positioning.

[0024] Furthermore, the cross-section of the flow guiding structure 41 is V-shaped, and the V-shape is distributed from the nozzle 2 to the distributor head 1.

[0025] Furthermore, in the first embodiment, the insert 4 is made of brass, the fastening ring 6 is located on the lower circumference of the insert 4, the insert 4 is in contact with the dispenser head 1, and the fastening ring 6 is in contact with the nozzle 2.

[0026] Furthermore, in the second embodiment, the insert 4 is made of stainless steel, the second guide hole 42 is located inside the protruding boss 44, the boss 44 and the main body of the insert 4 are provided with a tapered connecting mechanism 43, and a fastening ring 6 is provided on the upper middle side of the insert 4. The insert 4 is in contact with the nozzle 2, and the fastening ring 6 is in contact with the dispenser head 1.

[0027] Furthermore, in the second embodiment, the insert 4 is provided with a positioning ring 5, which passes through the distributor head 1 and the fastening ring 6, and its lower side matches the V-shape of the insert 4.

[0028] Furthermore, the distributor 3 is an impeller, which mixes the gas and liquid phases of refrigerant.

[0029] When this anti-clogging distributor device is in use, the branch pipe passes through the first guide hole 11, then through the expansion annular groove 12, and finally through the second guide hole 42, and is then welded.

[0030] The above are preferred embodiments of the present utility model and do not limit the scope of protection of the present utility model. Any modifications and improvements made by those skilled in the art based on the design concept of the present utility model should be considered within the scope of protection of the present utility model.

Claims

1. A clog-resistant distributor device, comprising a distributor head (1), a nozzle (2), and a distributor (3), wherein the distributor head (1) is provided with a plurality of first guide holes (11), characterized in that: The dispenser head (1) and the nozzle (2) are pressed together with inserts (4) of different materials. The inserts (4) are provided with a flow guide structure (41) extending from the middle to both sides. An expansion annular groove (12) is provided on the lower side of the first flow guide hole (11). The inserts (4) are provided with a second flow guide hole (42) coaxial with the first flow guide hole (11). The second flow guide hole (42) is provided with a positioning structure. The diameter of the second flow guide hole (42) is larger than that of the first flow guide hole (11). A fastening ring (6) is provided in the middle or around the circumference of the inserts (4).

2. The anti-clogging distributor device as described in claim 1, characterized in that: The cross-section of the flow guiding structure (41) is V-shaped.

3. The anti-clogging distributor device as described in claim 1, characterized in that: The material of the inlay (4) is brass.

4. The anti-clogging distributor device as described in claim 1, characterized in that: The material of the insert (4) is stainless steel. The second guide hole (42) is located in the protruding boss (44). The boss (44) and the main body of the insert (4) are provided with a tapered connecting mechanism (43).

5. The anti-clogging distributor device as described in claim 4, characterized in that: The insert (4) is provided with a positioning ring (5).

6. The anti-clogging distributor device as described in any one of claims 1-5, characterized in that: The distributor (3) is an impeller.

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