CN210951998U - Refrigerant inlet device and air conditioner - Google Patents
Refrigerant inlet device and air conditioner Download PDFInfo
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- CN210951998U CN210951998U CN201920959179.1U CN201920959179U CN210951998U CN 210951998 U CN210951998 U CN 210951998U CN 201920959179 U CN201920959179 U CN 201920959179U CN 210951998 U CN210951998 U CN 210951998U
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- constriction
- heat exchange
- refrigerant
- refrigerant inlet
- exchange tube
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Abstract
The utility model provides a refrigerant inlet means and air conditioner, the refrigerant inlet means includes the feed liquor capillary, the one end of feed liquor capillary forms the insertion portion, the insertion portion inserts to the heat exchange tube in, the axle head of insertion portion seals the tip of insertion portion sets up the constriction portion set up the outlet hole on the radial direction of constriction portion. The utility model discloses it is rational in infrastructure, flow original axle head and change into radial blowout into, through the shrink portion that sets up, further improve the blowout speed of refrigerant, with the refrigerant along radially spouting to the heat exchange tube inner wall, fully erode the heat exchange tube inner wall, avoided refrigerant and heat exchange tube inner wall separation to appear on the axial direction, improve the heat exchange efficiency of heat exchange tube.
Description
Technical Field
The utility model relates to a refrigeration wading pen technical field, in particular to refrigerant inlet means and air conditioner.
Background
As shown in figure 1. In the prior art, a refrigerant in an evaporator system enters a tube box after being regulated by a thermal expansion valve or an electronic expansion valve, liquid equalization is carried out by a flow equalization plate with small holes, the refrigerant is distributed to a tube bundle of a first tube pass, and the refrigerant axially enters a heat exchange tube from an outlet 5 of a capillary tube after being throttled by the capillary tube. The liquid spraying speed of the capillary tube is high, and the refrigerant is separated from the inner wall of the heat exchange tube in a long pipeline stroke, so that the heat exchange efficiency of the heat exchange tube is poor.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a design a refrigerant inlet means and air conditioner, set up the constriction through the tip of receiving and stretching into the heat transfer pipe at inlet means to seal inlet end tip with inlet means's stretching, set up the discharge orifice on the radial direction of constriction, thereby make the refrigerant along radial discharge orifice blowout, radial spout is to the heat exchange tube inner wall, fully erodees the heat exchange tube inner wall, improves the heat exchange efficiency of heat exchange tube.
In order to solve the problem, the utility model discloses a refrigerant inlet means, including the feed liquor capillary, the one end of feed liquor capillary forms the insertion part, the insertion part inserts to the heat exchange tube in, the axle head of insertion part seals the tip of insertion part sets up the constriction part set up the outlet hole on the radial direction of constriction part.
The utility model discloses it is rational in infrastructure, flow original axle head and change into radial blowout into, through the shrink portion that sets up, further improve the blowout speed of refrigerant, with the refrigerant along radially spouting to the heat exchange tube inner wall, fully erode the heat exchange tube inner wall, avoided refrigerant and heat exchange tube inner wall separation to appear on the axial direction, improve the heat exchange efficiency of heat exchange tube.
Further, the liquid inlet capillary comprises a throttling section and an insertion part, and the cross-sectional area of the insertion part is larger than that of the throttling section.
The cross-sectional area of the liquid inlet capillary tube inserting part is larger than that of the throttling section, so that the flowing efficiency of the refrigerant is improved.
Furthermore, a connection side is formed at the connection position of the contraction part and the insertion part, an end cover plate is arranged at one end, far away from the connection side, of the contraction part, and the cross section of the contraction part is arranged in a changing manner from the end, where the end cover plate is arranged, to the end, where the connection side is formed.
The refrigerant flows from the insertion part to the contraction part and is sprayed to the inner wall of the heat exchange tube through the outflow hole arranged in the radial direction of the contraction part, and the cross section area of the contraction part is arranged in a changing shape, so that the reliability of the spraying of the refrigerant from the outflow hole is further improved.
Furthermore, the cross section of the contraction part is arranged in an inclined shape from one end provided with the end cover plate to one end forming the connection side, and the outflow hole is arranged on an inclined plane of the contraction part.
The arrangement is convenient for the refrigerant to be obliquely and outwards sprayed out of the outflow hole, the area of the refrigerant scouring the pipe wall of the heat exchange pipe is increased, and the heat exchange efficiency of the heat exchange pipe is improved.
Further, the outflow hole is provided with at least one constriction
Further, the outflow holes are arranged in at least one row along the axial direction on the pipe wall of the contraction part, and the number of the outflow holes in each row arranged on the circumferential direction of the pipe wall of the contraction part is at least one.
Furthermore, two or more rows of the outflow holes are arranged on the pipe wall of the contraction part along the axial direction, and the diameters of the outflow holes on the pipe wall of the adjacent two rows of the contraction part are equal or different.
Further, two or more outflow holes are arranged in each row in the circumferential direction of the pipe wall of the contraction part, and the hole diameters of two adjacent outflow holes in each row are equal or different.
The arrangement ensures that the refrigerant can be reliably ejected from the contraction part of the liquid inlet capillary tube through the outflow hole, ensures that the refrigerant is vertically or obliquely ejected to the inner surface of the heat exchange tube from the outflow hole to form jet impact with a certain speed, and achieves better heat exchange efficiency.
Further, the outflow hole is provided with any one or more of a round hole, a groove-shaped hole and a polygonal hole.
The arrangement improves the efficiency and the applicability of the refrigerant sprayed to the wall of the heat exchange tube from the outflow hole of the contraction part, and ensures the heat exchange efficiency of the heat exchange tube
Refrigerant inlet means, simple structure and ingenious, through reasonable structure and the mode of arranging that sets up the discharge orifice, guarantee that the refrigerant from the efficiency and the reliability that the feed liquor capillary blowout erodees the heat exchange tube inner wall, improved the heat exchange efficiency of heat exchange tube greatly.
The utility model also discloses an air conditioner, be provided with on the air conditioner as above-mentioned refrigerant inlet means.
The air conditioner has the same advantages as the refrigerant inlet device compared with the prior art, and the details are not repeated.
Drawings
FIG. 1 is a schematic diagram showing the structure of a refrigerant flow direction to a heat exchange tube of a prior art liquid inlet device;
fig. 2 is an assembly schematic diagram of a liquid inlet capillary tube and a heat exchange tube of the refrigerant inlet device in the embodiment of the present invention;
fig. 3 is an assembly schematic diagram of a liquid inlet capillary tube and a heat exchange tube of a refrigerant inlet device according to a second embodiment of the present invention;
fig. 4 is an assembly schematic diagram of a liquid inlet capillary tube and a heat exchange tube of a third refrigerant inlet device in the embodiment of the present invention;
fig. 5 is an assembly schematic diagram of a liquid inlet capillary tube and a heat exchange tube of a fourth refrigerant inlet device in an embodiment of the present invention;
description of reference numerals:
1-heat exchange tube, 2-liquid inlet capillary tube, 3-throttling section, 4-insertion part, 5-outflow port, 6-contraction part, 7-end cover plate, 8-outflow hole and 9-connection side.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.
Embodiment 1, as shown in fig. 2-3, the utility model discloses a refrigerant inlet means, including feed liquor capillary 2, insert portion 4 is formed to the one end of feed liquor capillary 2, insert portion 4 inserts to heat exchange tube 1 in, the axle head of insert portion 4 is sealed the tip of insert portion 4 sets up constriction 6 set up outlet 8 in the radial direction of constriction 6.
The working principle of the utility model is as follows: carry out the axle head through the one end with the feed liquor capillary insert heat exchange tube and seal to set up the constriction at the insertion part of feed liquor capillary, the cross sectional area of constriction is less than the cross sectional area of insertion part, forms an annular space between constriction and heat exchange tube, through radially opening a plurality of discharge orifice at tip constriction. After flowing to the contraction part of the capillary tube, the refrigerant is sprayed out along the radial outflow hole and sprayed into the annular space to be fully washed away with the inner wall of the heat exchange tube, so that heat exchange is enhanced.
The utility model discloses it is rational in infrastructure, flow original axle head and change into radial blowout into, through the shrink portion that sets up, further improve the blowout speed of refrigerant, with the refrigerant along radially spouting to the heat exchange tube inner wall, fully erode the heat exchange tube inner wall, avoided refrigerant and heat exchange tube inner wall separation to appear on the axial direction, improve the heat exchange efficiency of heat exchange tube.
Preferably, as a preferred embodiment of the present invention, the liquid inlet capillary 2 includes a throttling section 3 and an insertion portion 4, and the cross-sectional area of the insertion portion 4 is larger than that of the throttling section 3.
As an example of the present invention, the one end of feed liquor capillary and refrigerant feed liquor pipe UNICOM, perhaps through equal liquid device and refrigerant feed liquor pipe UNICOM, the throttle section 3 of feed liquor capillary 2 is the UNICOM part between heat exchange tube 1 and refrigerant feed liquor pipe or the equal liquid device, and feed liquor capillary 2 forms the expansion pipe portion after inserting heat exchange tube 1, the cross sectional area of expansion pipe portion slightly is less than the cross sectional area of heat exchange tube 1 for the cross sectional area of feed liquor capillary insertion portion 4 is greater than the cross sectional area of throttle section 3, thereby improves the flow efficiency of refrigerant. The cross section of the insertion portion 4 and the cross section of the throttle 2 may be circular, polygonal, or any other configuration, and preferably circular.
As a preferred embodiment of the present invention, the contracting portion 6 is disposed at the end of the inserting portion 4, the contracting portion 6 forms a connecting side 9 with the connection of the inserting portion 4, an end cover plate 7 is disposed at one end of the contracting portion 6 away from the connecting side 9, and the cross section of the contracting portion 6 is disposed in a variable manner from one end where the end cover plate 7 is disposed to one end where the connecting side 9 is formed.
The refrigerant flows from the insertion portion to the constricted portion, and is discharged to the inner wall of the heat exchange tube through the outflow holes provided in the radial direction of the constricted portion. The provision of the constricted portion in a variable cross-sectional area further improves the reliability of the refrigerant discharged from the outlet hole, and includes, but is not limited to, a configuration in which the constricted portion 6 can be provided in any cross-sectional shape such as a trapezoidal, truncated cone, or stepped shape from the end where the end cover 7 is provided to the end where the connection side 9 is formed.
In a preferred embodiment of the present invention, the cross section of the constricted part 6 is inclined from the end where the end cover plate 7 is disposed to the end where the connection side 9 is formed, and the outflow hole 8 is disposed on the inclined surface of the constricted part 6. As the example of the utility model, set up constriction 6 to trapezoidal platform, and constriction 6 sets up the cross-sectional area that the end cover board 7 one side is less than constriction 6 and forms the cross-sectional area of connecting side 9 one side, and this setting is convenient for outwards spout the refrigerant from the downthehole slope of outflow, increases the area that the refrigerant erodees the heat exchange tube pipe wall, improves the heat exchange efficiency of heat exchange tube.
As a preferred embodiment of the present invention, the outflow hole 8 is provided in plural on the constricted portion 6. Preferably, the plurality of outlet holes 8 may be regularly or irregularly distributed on the constriction 6, and it should be noted here that even if the outlet holes 8 are irregularly distributed, the outlet holes 8 cannot be excessively concentrated or dispersed, and the excessively concentrated outlet holes cause the refrigerant to be ejected from the concentrated outlet holes 8 and cannot form jet impact on the inner surface of the heat exchange tube 1; however, since the amount of refrigerant discharged from the single outlet hole 8 is small, the refrigerant evaporating amount at the outlet hole 8 cannot be secured due to the excessive dispersion of the outlet hole 8.
As a preferred embodiment of the present invention, the outflow holes 8 are axially arranged in at least 1 row along the wall of the constriction 6. As an example of the present invention, a row of outflow holes 8 may be disposed in the axial direction on the pipe wall of the constriction 6, two rows of outflow holes 8 and even multiple rows of outflow holes 8 may also be disposed, the distance between the multiple rows of outflow holes may be distributed at equal intervals, or may be distributed at unequal intervals, for example, the distance between two adjacent rows of outflow holes is gradually decreased from the end close to the connection side 9 to the end close to the end cover plate 7, or the distance between two adjacent rows of outflow holes is gradually increased from the end close to the connection side 9 to the end close to the end cover plate 7, or alternatively, the distance between two adjacent rows of outflow holes is set in an unordered manner, preferably, the multiple rows of outflow holes are uniformly distributed on the pipe wall of the constriction 6.
Furthermore, two or more rows of the outflow holes 8 are axially arranged on the pipe wall of the contraction part 6, and the diameters of the outflow holes 8 on the pipe wall of the adjacent two rows of the contraction part 6 are equal or different. As an example of the present invention, the diameters of the outflow holes 8 on the pipe walls of two adjacent rows of constrictions 6 are equal, or the diameters of the outflow holes 8 on the pipe walls of two adjacent rows of constrictions 6 on the same axis are configured to be gradually increased, gradually decreased, or alternatively changed.
As a preferred embodiment of the present invention, at least 1 outflow hole 8 is provided in each row in the circumferential direction of the pipe wall of the constricted portion 6. As an example of the present invention, each row of the outflow holes 8 may be provided 1 in the circumferential direction of the pipe wall of the constricted portion 6, and each row of the outflow holes 8 may also be provided 2 or more in the circumferential direction of the pipe wall of the constricted portion 6.
As a preferred embodiment of the present invention, two or more outflow holes 8 are provided in each row in the circumferential direction of the pipe wall of the constricted portion 6, and the diameters of two adjacent outflow holes 8 in each row are equal or different. Preferably, the two adjacent outflow holes 8 in each row have the same diameter.
As a preferred embodiment of the present invention, the outlet holes 8 are arranged in 1 row on the pipe wall of the constriction 6, and the outlet holes 8 are arranged in a plurality and uniformly distributed in the circumferential direction of the pipe wall of the constriction 6; or two or more rows of the outflow holes 8 are arranged along the axial direction of the pipe wall of the contraction part 6, the intervals among the outflow holes in the rows are uniformly distributed, and a plurality of outflow holes 8 in each row are arranged and uniformly distributed in the circumferential direction of the pipe wall of the contraction part 6; in the constriction 6, the density of the outflow openings 8 may be increased gradually and the diameter of the outflow openings 8 may be increased gradually in the direction from the connection side 9 to the end cover 7.
The arrangement enables the refrigerant to be uniformly ejected from the contraction part 6 of the liquid inlet capillary tube 2 through the outflow hole 8, and ensures that the refrigerant is vertically or obliquely ejected to the inner surface of the heat exchange tube 1 from the outflow hole 8 to form jet impact with a certain speed, thereby achieving better heat exchange efficiency.
As a preferred embodiment of the present invention, the end cover plate 7 and the contracting portion 6 can be integrally formed, or can be fixed by any detachable connecting part such as a plug frame, a joint, a threaded connection, etc.
As a preferred embodiment of the present invention, the contracting portion 6 and the inserting portion 4 may be integrally formed, or may be fixed by any detachable connecting portion such as a plug frame, a joint, a screw connection, etc., and the connecting side 9 is formed at the connecting portion.
As a preferred embodiment of the present invention, the outflow hole 8 is formed as any one or more of a circular hole, a slot-shaped hole, a polygonal hole or a special-shaped hole. Preferably, the outflow hole 8 can be configured as a circular hole or an axial square groove or a radial square groove. Thereby improving the efficiency and the applicability of the refrigerant sprayed to the pipe wall of the heat exchange pipe from the outflow hole of the contraction part and ensuring the heat exchange efficiency of the heat exchange pipe.
As a preferred example of the present invention, the heat exchange tube 1 is a heat exchange tube commonly used in the air conditioning field or the heat exchanger field, and is preferably a copper tube.
Embodiment 2, the utility model also discloses an air conditioner, be provided with the aforesaid on the air conditioner refrigerant inlet means.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention, and the scope of the present invention is defined by the appended claims.
Claims (10)
1. The utility model provides a refrigerant inlet means, includes liquid inlet capillary (2), insert (4) is formed to the one end of liquid inlet capillary (2), insert (4) are inserted to heat exchange tube (1) in, its characterized in that, the axle head of insert (4) is sealed the tip of insert (4) sets up constriction (6) set up outflow hole (8) on the radial direction of constriction (6).
2. Refrigerant inlet device according to claim 1, characterized in that, the inlet capillary tube (2) comprises a throttling section (3) and an insertion part (4), and the cross-sectional area of the insertion part (4) is larger than that of the throttling section (3).
3. A refrigerant inlet device according to claim 1 or 2, characterized in that the connection of the constriction (6) and the insertion portion (4) forms a connection side (9), an end cover plate (7) is arranged at the end of the constriction (6) far away from the connection side (9), and the cross section of the constriction (6) is arranged in a manner of changing from the end where the end cover plate (7) is arranged to the end where the connection side (9) is formed.
4. Refrigerant inlet device according to claim 3, characterized in that the cross section of the constriction (6) is inclined from the end where the end cover plate (7) is arranged to the end where the connection side (9) is formed, and the outlet hole (8) is arranged on the inclined surface of the constriction (6).
5. Refrigerant inlet device according to claim 1, characterized in that the outflow hole (8) is provided with at least one on the constriction (6).
6. Refrigerant inlet device according to claim 1, characterized in that the outflow holes (8) are arranged in at least one row along the axial direction on the pipe wall of the constriction (6), and the number of outflow holes (8) in each row arranged in the circumferential direction on the pipe wall of the constriction (6) is at least one.
7. The refrigerant inlet device according to claim 6, characterized in that the outflow holes (8) are arranged in two or more rows along the axial direction on the pipe wall of the contraction part (6), and the hole diameters of the outflow holes (8) on the pipe wall of the adjacent two rows of contraction parts (6) are equal or different.
8. The refrigerant inlet device according to claim 6 or 7, characterized in that, two or more outflow holes (8) are arranged in the circumferential direction of the pipe wall of the contraction part (6), and the hole diameters of two adjacent outflow holes (8) in each row are equal or different.
9. Refrigerant inlet device according to claim 1, characterized in that the outlet holes (8) are provided as any one or more of round holes, slot-type holes, polygonal holes.
10. An air conditioner, characterized in that, a refrigerant inlet device as claimed in any one of claims 1 to 9 is arranged on the air conditioner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920959179.1U CN210951998U (en) | 2019-06-25 | 2019-06-25 | Refrigerant inlet device and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920959179.1U CN210951998U (en) | 2019-06-25 | 2019-06-25 | Refrigerant inlet device and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210951998U true CN210951998U (en) | 2020-07-07 |
Family
ID=71371342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920959179.1U Active CN210951998U (en) | 2019-06-25 | 2019-06-25 | Refrigerant inlet device and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210951998U (en) |
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2019
- 2019-06-25 CN CN201920959179.1U patent/CN210951998U/en active Active
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