阅读说明：本技术 一种分液头 (Liquid separation head ) 是由 吴俊云 于 2019-09-09 设计创作，主要内容包括：本发明公开了一种分液头,包括喷射进口管和分液头本体两部分,所述喷射进口管和分液头本体进口连成一体组成完整的分液头,分液头本体另一端底部设有多个分流孔,分流孔贯通至所述分液头本体内壁面,各分流孔的孔壁完整,分液头本体内的底部中央有表面光滑的分流圆锥；所述喷射进口管一端嵌入到所述分液头本体进口段内部,所述分流孔呈圆椎形均匀分布,冷媒入口段为喷射进口管。有益效果是：各分流孔的孔壁完整无毛刺且不容易破坏,冷媒能顺畅、均匀地进入各个分流孔,减低流动阻力和流动嘈音,均匀分配流向每组盘管的制冷剂,提供蒸发器各路出口温度均匀性,充分利用蒸发器传热面积,提高蒸发器的运行效率,从而提高制冷系统性能及可靠性。(The invention discloses a liquid separation head, which comprises a jet inlet pipe and a liquid separation head body, wherein the jet inlet pipe and an inlet of the liquid separation head body are connected into a whole to form a complete liquid separation head; one end of the injection inlet pipe is embedded into the inlet section of the liquid distribution head body, the flow distribution holes are uniformly distributed in a cone shape, and the refrigerant inlet section is the injection inlet pipe. The beneficial effects are that: the hole wall of each diffluent hole is complete and has no burr and is not easy to destroy, the refrigerant can smoothly and uniformly enter each diffluent hole, the flow resistance and the flow noise are reduced, the refrigerant flowing to each group of coil pipes is uniformly distributed, the temperature uniformity of each outlet of the evaporator is provided, the heat transfer area of the evaporator is fully utilized, the operation efficiency of the evaporator is improved, and the performance and the reliability of a refrigeration system are improved.)

1. the utility model provides a liquid separation head, is including spraying import pipe and liquid separation head body two parts, spray import pipe and liquid separation head body import and even constitute complete liquid separation head as an organic whole, liquid separation head body other end bottom is equipped with a plurality of diffluence holes, its characterized in that: the flow distribution holes penetrate through the inner wall surface of the liquid separation head body, one end of the injection inlet pipe is embedded into the inlet section of the liquid separation head body, the flow distribution holes are uniformly distributed in a conical shape, and the refrigerant inlet section is the injection inlet pipe.

2. A dispensing head according to claim 1, wherein: the jet inlet pipe and the liquid separation head body can be made of metal, and the jet inlet pipe can also be made of non-metal materials.

3. A dispensing head according to claim 1, wherein: the hole wall of each shunting hole in the liquid separation head body is complete, and the minimum thickness of the wall between adjacent holes is larger than 0.1 mm.

4. A dispensing head according to claim 1, wherein: the liquid distributor is characterized in that one or more annular steps are arranged in an inlet section of the liquid distribution head body, a distribution cone is arranged in the center of the bottom in the liquid distribution head body, the top of the distribution cone can be a spherical surface, a cone tip or a small plane, the surface of the distribution cone can be subjected to smooth processing or not, the intersection of the root of the distribution cone and the inner surface of the tail end of the distribution hole can be processed into arc transition or plane connection, or can be a intersecting line.

5. A dispensing head according to claim 1, wherein: the shunting cone and the liquid separation head body can also be of a split combined structure, the shunting cone and the liquid separation head body can be connected through threads or in an interference fit mode, and the shunting cone can be made of metal materials or nonmetal materials.

6. A dispensing head according to claim 1, wherein: the channel of the injection inlet pipe can be processed into a venturi tube shape, the middle reduced part of the channel of the injection inlet pipe can be formed by processing an arc surface, and also can be a section of equal-diameter pipe or a pore plate structure.

7. A dispensing head according to claim 1, wherein: the jet inlet pipe can be a pipe with equal outer diameter or a pipe with unequal outer diameter, and one to multiple ring grooves can be arranged outside the jet inlet pipe.

8. A dispensing head according to claim 1, wherein: the injection inlet pipe embedding section and the inlet section of the liquid separation head body can be in interference fit or non-interference fit or partially-interference fit or connected by threads, and the inlet end face of the injection inlet pipe and the inlet end face of the liquid separation head body can be flush or not flush.

9. A dispensing head according to claim 1, wherein: an annular space can be arranged between the inlet section of the injection inlet pipe and the inlet section of the liquid separation head body, or the annular space can be omitted.

10. A dispensing head according to claim 1, wherein: the outer surface of the inlet section of the injection inlet pipe can be provided with a section of thread, and the liquid separation head and the inlet pipe can also be connected by the thread.

Technical Field

The invention relates to a fluid distributor for a refrigerating system, in particular to a liquid distribution head.

Technical Field

The liquid separation head is a device for uniformly distributing the flow of fluid, is arranged in a refrigerating system to uniformly distribute a refrigerant into a plurality of paths to an evaporator, enables the refrigerant to be uniformly evaporated in the evaporator, improves the refrigerating efficiency, and plays an important role in cold quantity distribution in a refrigerating air-conditioning system. The structure and the variety of the liquid separating head commonly used in the market at present are various, but the problems of overhigh pressure loss, strict installation mode requirement, high processing technology requirement, poor consistency and the like commonly exist, and in the using process, the inner wall of the part of the liquid separating head is damaged due to the existence of impurities in a system and high-speed flowing of fluid, so that the shunt resistance is unbalanced, and the liquid separation is more uneven; the problems of waste of evaporator area, incomplete evaporation, uneven frosting of a heat pump system in winter, incomplete defrosting and the like are caused by uneven liquid separation.

Disclosure of Invention

The technical problem to be solved by the present invention is how to overcome the above-mentioned defects of the prior art, and to provide a liquid separation head.

For solving above-mentioned technical problem, this divide the liquid head to constitute by spraying import pipe and branch liquid head body two parts, spray import pipe and divide liquid head body import to link into an organic whole and constitute complete branch liquid head, divide liquid head body other end bottom to be equipped with a plurality of reposition of redundant personnel holes, its characterized in that: the shunting hole is communicated to the inner wall surface of the liquid shunting head body; one end of the injection inlet pipe is embedded into the inlet section of the liquid distribution head body, the flow distribution holes are uniformly distributed in a cone shape, and the refrigerant inlet section is the injection inlet pipe.

The jet inlet pipe and the liquid separation head body can be made of the same metal material or different metal materials. The liquid separation head body is made of metal processing, and the jet inlet pipe can also be made of non-metal materials.

Preferably, the shunting hole is a stepped hole, the radius of the outer end of the shunting hole is slightly larger than the outer diameter of the matched copper pipe, and the radius of the inner end of the shunting hole is equivalent to the inner diameter of the matched copper pipe.

The shunting holes of the liquid distribution head body penetrate through the inner surface of the liquid distribution head body, the hole wall of each shunting hole is complete, and the minimum thickness of the wall between adjacent holes is more than 0.1 mm; the bottom center in the liquid separation head body is provided with a shunting cone, the surface of the shunting cone can also be processed into a streamline conical surface, one or more small steps can also be processed, and the surface of the shunting cone can be processed into smooth surface or not; the intersection of the root of the shunting cone and the inner surface of the tail end of the shunting hole can be processed into arc transition, can also be connected with a plane, and can also be an intersecting line; the top of the shunting cone can be processed into spherical surface transition, can also be processed into a cone tip, and can also be a small plane.

The flow dividing cone and the liquid dividing head body can also be of a split combined structure, and the flow dividing cone and the liquid dividing head body can be connected through threads or in an interference fit manner; the shunting cone can be made of metal materials or nonmetal materials.

One or more annular steps are arranged in the inlet section of the liquid separation head body.

Preferably, an annular step close to the flow splitting hole is arranged in the inlet section of the liquid splitting head body, the width of the annular step is equal to the thickness of the tail end of the embedded part of the jet inlet pipe, and the jet inlet pipe is axially limited.

As optimization, the bottom of the liquid separation head body is manufactured in an inwards concave mode, and raw materials are saved.

The channel of the jet inlet pipe can be processed into a Venturi tube shape, the tail section of the channel is a gradually expanded bell mouth, and the inner surface curved surface of the jet inlet pipe can be a conical surface or a cambered surface; the middle reduced part of the jet inlet pipe passage can be formed by processing an arc surface, can also be a section of equal-diameter pipe, and can also be in a pore plate structure.

the jet inlet pipe can be a pipe with an equal outer diameter, a pipe with a non-equal outer diameter, a geometric figure with a gradually reduced and gradually enlarged shape, a geometric figure with a subsection different outer diameter, a conical surface transition between parts with different outer diameters, or a sudden expansion and sudden contraction with an annular step.

One to a plurality of ring grooves can be arranged outside the injection inlet pipe.

the injection inlet pipe embedding section and the inlet section of the liquid separation head body can be in interference fit, can also be in non-interference fit, and can also be in partial interference fit with a part of clearance. The inlet end face of the injection inlet pipe and the inlet end face of the liquid separation head body can be flush or not flush. The inlet end face of the liquid separation head body and the outer step of the injection inlet pipe can be flush or not flush.

The injection inlet pipe and the inlet section of the liquid separation head body can be connected through threads, and the injection inlet pipe and the inlet section of the liquid separation head body can be sealed through a sealing ring.

An annular space can be arranged between the inlet section of the injection inlet pipe and the inlet section of the liquid separation head body, or the annular space can be omitted.

Preferably, the width of the annular space between the jet inlet pipe and the inlet section of the liquid separation head body is larger than the wall thickness of the inlet distribution pipe, so that the inlet distribution pipe can be conveniently inserted and welded.

The liquid separation head body can be independently formed into a liquid separation head, the liquid separation head inlet distribution pipe is directly inserted into and welded with the liquid separation head body, the middle part of the insertion part of the liquid separation head inlet distribution pipe can be pre-rolled to form a spray pipe shape with the middle inner diameter reduced and the two ends with the larger inner diameter, the spray pipe can also be inserted after the tail section of the spray pipe is expanded, and the spray pipe can also be directly inserted without processing a straight pipe.

The outer surface of the inlet section of the injection inlet pipe can be provided with a section of thread, and the liquid separation head and the inlet pipe can also be connected by the thread.

The invention has the beneficial effects that: the hole wall of the flow dividing hole in the liquid dividing head is ensured to be complete and not easy to damage, the refrigerant flow channel is free of burrs, the refrigerant can smoothly and uniformly enter each flow dividing hole, the flow resistance and the flowing noise are reduced, the refrigerant flowing to each group of coil pipes is uniformly distributed, the temperature uniformity of each outlet of the evaporator is provided, the heat transfer area of the evaporator is fully utilized, the operation efficiency of the evaporator is improved, and therefore the performance and the reliability of a refrigerating system are improved.

Drawings

The liquid separation head is further described with reference to the attached drawings:

FIG. 1 is a schematic cross-sectional view of a first embodiment of the present dispensing head;

FIG. 2 is a schematic cross-sectional view of the dispensing head body of FIG. 1;

FIG. 3 is a schematic cross-sectional view of the jet inlet tube of FIG. 1;

Fig. 4 is a schematic sectional view of a second embodiment of the liquid separation head.

In the figure: 1 for dividing the liquid head body, 2 for spraying the import pipe, 3 for the import of dividing the liquid head body, 4 be annular step, 5 for the reposition of redundant personnel hole, 6 for dividing this internal reposition of redundant personnel circular cone of liquid head, 7 for spraying the import of import pipe, 8 for spraying the loudspeaker export of import pipe, 9 for spraying the import pipe, 10 for dividing the liquid head body.

Detailed Description