阅读说明：本技术 一种卧式冷凝器、室外机和空调系统 (Horizontal condenser, outdoor unit and air conditioning system ) 是由 王小勇 胡东兵 胡海利 张营 于 2021-07-20 设计创作，主要内容包括：本发明公开了一种卧式冷凝器、室外机和空调系统,涉及空调技术领域,解决了现有技术中“C”型内置油分非对称布置导致冷凝管两侧换热性能降低,造成冷凝器整体换热衰减的问题。该卧式冷凝器包括壳体、油分和均流板,油分和均流板内置于壳体内,油分位于壳体的一侧且偏心布置,均流板位于壳体的另一侧,均流板上设置有导液孔和至少具有两种孔径的导气孔,导液孔用于供冷凝液流出,导气孔用于供冷媒气体流过并使流经导气孔后的冷媒气体均匀。该卧式冷凝器均流板上不均一的导气孔可对通过油分进入换热管区的冷媒气体进行均气,使得不均匀的冷媒气体流过均流板后变得均匀,从而使得流过冷凝管区域的冷媒气体均匀,提升换热器整体换热效率。(The invention discloses a horizontal condenser, an outdoor unit and an air conditioning system, relates to the technical field of air conditioners and solves the problem that the heat exchange performance of two sides of a condenser pipe is reduced and the overall heat exchange of the condenser is attenuated due to the fact that C-shaped built-in oil components are asymmetrically arranged in the prior art. The horizontal condenser comprises a shell, oil and a flow equalizing plate, wherein the oil and the flow equalizing plate are arranged in the shell, the oil is positioned on one side of the shell and is eccentrically arranged, the flow equalizing plate is positioned on the other side of the shell, a liquid guide hole and an air guide hole with at least two apertures are formed in the flow equalizing plate, the liquid guide hole is used for allowing condensate to flow out, and the air guide hole is used for allowing refrigerant gas to flow through and enabling the refrigerant gas flowing through the air guide hole to be uniform. The uneven air guide holes in the horizontal condenser flow equalizing plate can equalize the refrigerant gas entering the heat exchange tube area through oil, so that the uneven refrigerant gas flows through the flow equalizing plate and then becomes even, the refrigerant gas flowing through the condensing tube area is even, and the overall heat exchange efficiency of the heat exchanger is improved.)

1. The utility model provides a horizontal condenser, characterized in that, includes casing (101), oil content and flow equalizing plate (201), wherein, the oil content with flow equalizing plate (201) are built in casing (101), and the oil content is located one side of casing (101) and eccentric arrangement, flow equalizing plate (201) are located the opposite side of casing (101), be provided with drain hole (2011) and gas guide hole (2012) that have two kinds of apertures at least on flow equalizing plate (201), drain hole (2011) are used for the refrigerant liquid to flow out, gas guide hole (2012) are used for the refrigerant gas to flow through and make the refrigerant gas after flowing through gas guide hole (2012) even.

2. The horizontal condenser according to claim 1, wherein the flow equalizing plate (201) is obliquely disposed in a pipe distribution area in the shell (101) and divides the pipe distribution area into a first pipe distribution area (202) and a second pipe distribution area (203), and both sides of the flow equalizing plate (201) are connected to the shell (101) and the oil component, respectively.

3. The horizontal condenser of claim 2, wherein the included angle between the flow equalizing plate (201) and the horizontal plane is 2-15 °.

4. The horizontal condenser of claim 2, wherein the liquid guiding hole (2011) is located at a lower end of the flow equalizing plate (201) and at a side of the flow equalizing plate (201) close to the shell (101), and the gas guiding hole (2012) is located at a side of the flow equalizing plate (201) close to the oil.

5. The horizontal condenser according to claim 4, wherein the air vents (2012) comprise a first air vent (2012a) and a second air vent (2012b), wherein the first air vent (2012a) is located on a side of the flow equalizing plate (201) close to the liquid vent (2011), the second air vent (2012b) is located on a side of the flow equalizing plate (201) close to the oil, and a pore diameter of the first air vent (2012a) is smaller than a pore diameter of the second air vent (2012 b).

6. The horizontal condenser as recited in claim 5, wherein the liquid guide holes (2011) are single row holes, and the diameter of the liquid guide holes (2011) is 6-12 mm; the first air guide hole (2012a) and the second air guide hole (2012b) are a plurality of rows of holes, the aperture of the first air guide hole (2012a) is 1-4 mm, and the aperture of the second air guide hole (2012b) is 3-8 mm.

7. The horizontal condenser as recited in claim 6, wherein the hole pitch of the liquid guide holes (2011) is 1.5-3 times of the hole diameter; the hole spacing of the first air guide holes (2012a) in the width and length directions of the flow equalizing plate (201) is 1.5-3 times of the hole diameter of the first air guide holes; the hole spacing of the second air guide holes (2012b) in the width and length directions of the flow equalizing plate (201) is 1.5-3 times of the hole diameter of the second air guide holes.

8. The horizontal condenser according to claim 6, wherein the liquid guide holes (2011), the first air guide holes (2012a) and the second air guide holes (2012b) occupy the flow equalizing plate (201) in a width ratio of: l1: L2: L3 is 1: 3: 15-1: 10: 15, wherein L1 is the width of the flow equalizing plate (201) occupied by the liquid guide holes (2011), L2 is the width of the flow equalizing plate (201) occupied by the first air guide holes (2012a), and L3 is the width of the flow equalizing plate (201) occupied by the second air guide holes (2012 b).

9. The horizontal condenser of claim 2, wherein the first fabric area (202) is arranged with a first heat exchange tube (2021) and a second heat exchange tube (2022), and the second fabric area (203) is arranged with a third heat exchange tube (2031), wherein the first heat exchange tube (2021) is located in a de-superheating area, and the heat exchange area of a single first heat exchange tube (2021) is smaller than the heat exchange area of a single second heat exchange tube (2022) or a single third heat exchange tube (2031).

10. Horizontal condenser according to one of claims 1 to 9, where the oil content comprises an inlet pipe (301), an internal oil drain plate (302), side closing plates (303), an oil outlet (304), an oil content screen (305), an L-shaped porous oil filter plate (306) and a long straight oil filter plate (307),

two sides of the side sealing plates (303) are connected with the inner wall of the shell (101); the built-in oil leakage plate (302) and the long straight oil filtering plate (307) are positioned in a cavity formed by the side sealing plates (303) and the shell (101); the air inlet pipe (301) is inserted into a semi-closed cavity formed by the shell (101), the built-in oil leakage plate (302), the side sealing plates (303) and the long straight oil filtering plate (307); the oil separation filter screen (305) and the L-shaped porous oil filter plate (306) are positioned at the gap of the side sealing plate (303); the oil outlet (304) is positioned on the shell (101) between the lower part of the built-in oil leakage plate (302) and the side sealing plate (303) and extends out of the shell (101).

11. The horizontal condenser of claim 10, wherein the side closing plates (303) have an arc-shaped structure.

12. The horizontal condenser as claimed in claim 11, wherein the arc length of the cross section of the side closing plates (303) is 1/5-1/2 of the perimeter of the cross section of the shell (101).

13. An outdoor unit comprising an outdoor unit body and a condenser disposed in the outdoor unit body, wherein the condenser is the horizontal condenser of any one of claims 1 to 12.

14. An air conditioning system comprising an indoor unit and an outdoor unit, wherein the outdoor unit is the outdoor unit according to claim 13.

Technical Field

The invention relates to the technical field of air conditioners, in particular to a horizontal condenser, an outdoor unit and an air conditioning system.

Background

In a water-cooling central air-conditioning system, particularly a screw machine system, due to a special working mechanism of a screw compressor, refrigeration oil needs to be introduced into the system, and the effects of cooling the compressor, lubricating male and female rotors and the like are achieved. In the operation process of the unit, high-temperature and high-pressure gaseous refrigerant mixed refrigerant enters the oil content device from the exhaust port of the compressor to complete oil-gas separation, the refrigerant oil returns to the compressor, and the gaseous refrigerant enters the condenser to exchange heat.

The common oil separator has two kinds of oil, external vertical oil separator and internal oil separator. The external vertical oil separation is generally in a thin and high rotary separation mode, but the separation efficiency is greatly influenced by factors such as internal flow field layout, oil drop distribution, structural parameters and the like, and the external oil separation influences the overall pipeline layout and the attractiveness of a unit and the like, so that the external vertical oil separation is gradually reduced in use. The built-in oil is integrated in the horizontal condenser, and the condenser has the advantages of providing enough oil-gas separation space, facilitating oil return and the like, and is used by a plurality of air conditioner manufacturers.

The V-shaped symmetrical structures of the built-in oil components are used at present, but with the development of miniaturization and compactness of the heat exchanger, the length and the diameter of a shell of the condenser are reduced, so that the built-in oil components of the C-shaped structure are developed to ensure a sufficient oil-gas separation space. The "C" type built-in oil presents an asymmetric arrangement in the condenser shell to facilitate separation of the frozen oil using gravity settling. However, the applicant finds that the asymmetric arrangement of the 'C' -shaped built-in oil components causes uneven distribution of gaseous refrigerants after oil-gas separation entering a heat exchange pipe area, so that the surface of a condensing pipe on one side is easy to generate a pipe bundle effect due to large condensation amount, and the condensation heat exchange performance is reduced; and the condensing capacity of the condensing pipe on the other side is insufficient, so that the heat exchange capability of the condensing pipe cannot be fully exerted, the integral heat exchange attenuation of the condenser is caused, and the unit performance is influenced. Meanwhile, the heat exchange area which accounts for about 3-10% of the condenser is the overheating area, and the heat exchange area and the cost are easily wasted by using the existing efficient condenser pipe.

Therefore, there is an urgent need for improvement of the horizontal condenser in the prior art.

Disclosure of Invention

The invention provides a horizontal condenser, an outdoor unit and an air conditioning system, and solves the technical problem that the heat exchange performance of two sides of a condenser pipe is reduced and the overall heat exchange of the condenser is attenuated due to the asymmetrical arrangement of C-shaped built-in oil components in the prior art. The various technical effects that can be produced by the preferred technical solution of the present invention are described in detail below.

In order to achieve the purpose, the invention provides the following technical scheme:

the horizontal condenser comprises a shell, oil and a flow equalizing plate, wherein the oil and the flow equalizing plate are arranged in the shell, the oil is positioned on one side of the shell and is eccentrically arranged, the flow equalizing plate is positioned on the other side of the shell, the flow equalizing plate is provided with a liquid guide hole and at least two air guide holes with different apertures, the liquid guide hole is used for allowing condensate to flow out, and the air guide holes are used for allowing refrigerant gas to flow through and enabling the refrigerant gas flowing through the air guide holes to be uniform.

According to a preferred embodiment, the flow equalizing plate is obliquely disposed in a pipe distribution area in the shell and divides the pipe distribution area into a first pipe distribution area and a second pipe distribution area, and both sides of the flow equalizing plate are connected to the shell and the oil component, respectively.

According to a preferred embodiment, the included angle between the flow equalizing plate and the horizontal plane is 2-15 degrees.

According to a preferred embodiment, the liquid guiding hole is located at a lower end of the flow equalizing plate and on a side of the flow equalizing plate close to the casing, and the gas guiding hole is located on a side of the flow equalizing plate close to the oil.

According to a preferred embodiment, the air holes include a first air hole and a second air hole, wherein the first air hole is located on a side of the flow equalizing plate close to the liquid guiding hole, the second air hole is located on a side of the flow equalizing plate close to the oil, and a pore diameter of the first air hole is smaller than a pore diameter of the second air hole.

According to a preferred embodiment, the liquid guide holes are single-row holes, and the diameter of each liquid guide hole is 6-12 mm; the first air guide holes and the second air guide holes are multiple rows of holes, the aperture of each first air guide hole is 1-4 mm, and the aperture of each second air guide hole is 3-8 mm.

According to a preferred embodiment, the distance between the liquid guide holes is 1.5-3 times of the hole diameter; the hole spacing of the first air guide holes in the width and length directions of the flow equalizing plate is 1.5-3 times of the hole diameter of the first air guide holes; the hole spacing of the second air guide holes in the width direction and the length direction of the flow equalizing plate is 1.5-3 times of the hole diameter of the second air guide holes.

According to a preferred embodiment, the liquid guide holes, the first air guide holes and the second air guide holes occupy the flow equalizing plate with the width ratio of: l1: L2: L3 is 1: 3: 15-1: 10: 15, wherein L1 is the width of the flow equalizing plate occupied by the liquid guide holes, L2 is the width of the flow equalizing plate occupied by the first air guide holes, and L3 is the width of the flow equalizing plate occupied by the second air guide holes.

According to a preferred embodiment, the first tube distribution area is provided with a first heat exchange tube and a second heat exchange tube, the second tube distribution area is provided with a third heat exchange tube, the first heat exchange tube is located in a superheat removing area, and the heat exchange area of the single first heat exchange tube is smaller than that of the single second heat exchange tube or the single third heat exchange tube.

According to a preferred embodiment, the oil separator comprises an air inlet pipe, a built-in oil leakage plate, a side sealing plate, an oil outlet, an oil separation filter screen, an L-shaped porous oil filter plate and a long straight oil filter plate, wherein two sides of the side sealing plate are connected with the inner wall of the shell; the built-in oil leakage plate and the long straight oil filtering plate are positioned in a cavity formed by the side sealing plates and the shell; the air inlet pipe is inserted into a semi-closed cavity formed by the shell, the built-in oil leakage plate, the side sealing plate and the long straight oil filtering plate; the oil separation filter screen and the L-shaped porous oil filter plate are positioned at the notch of the side sealing plate; the oil outlet is positioned on the shell between the lower part of the built-in oil leakage plate and the side sealing plate and extends out of the shell.

According to a preferred embodiment, the side closing plates are of an arc-shaped structure.

According to a preferred embodiment, the arc length of the cross section of the side sealing plate is 1/5-1/2 of the perimeter of the cross section of the shell.

The outdoor unit comprises an outdoor unit body and a condenser positioned in the outdoor unit body, wherein the condenser is a horizontal condenser in any technical scheme of the invention.

The air conditioning system comprises an indoor unit and an outdoor unit, wherein the outdoor unit is the outdoor unit in any technical scheme of the invention.

The horizontal condenser, the outdoor unit and the air conditioning system at least have the following beneficial technical effects:

the horizontal condenser comprises a shell, oil and a flow equalizing plate, wherein the oil and the flow equalizing plate are arranged in the shell, the oil is positioned on one side of the shell and is eccentrically arranged, the flow equalizing plate is positioned on the other side of the shell, the flow equalizing plate is provided with a liquid guide hole and at least two air guide holes with different apertures, the liquid guide hole is used for allowing a refrigerant gas to flow out, and the air guide holes are used for allowing the refrigerant gas to flow through and enabling the refrigerant gas flowing through the air guide holes to be uniform, namely the horizontal condenser is an integrated horizontal condenser with the oil and the flow equalizing plate, the oil is positioned on one side of the shell and is eccentrically arranged, the uneven air guide holes on the flow equalizing plate can equalize the high-temperature and high-pressure refrigerant gas entering a heat exchange pipe area through the oil, so that the uneven refrigerant gas flowing through the flow equalizing plate is uniform, the refrigerant gas flowing through a condensing pipe area is uniform, and the whole heat exchange efficiency of the heat exchanger is improved, the problem that the condensing heat exchange performance is reduced due to the fact that the condensing quantity is large, and the condensing capacity of the condensing pipe on the other side cannot be fully exerted due to the fact that the condensing quantity is not enough is solved.

The outdoor unit comprises the horizontal condenser in any technical scheme, the air conditioning system comprises the outdoor unit in any technical scheme, and the heat exchange efficiency of the horizontal condenser is improved, so that the heat exchange efficiency of the outdoor unit is improved, and the heat exchange efficiency of the air conditioning system using the outdoor unit is also improved.

The horizontal condenser, the outdoor unit and the air conditioning system can solve the technical problem that the heat exchange performance of two sides of the condenser pipe is reduced and the integral heat exchange of the condenser is attenuated due to the asymmetrical arrangement of the C-shaped built-in oil components in the prior art.

In addition, the preferred technical scheme of the invention can also produce the following technical effects:

according to the oil separator, the side sealing plates of the oil separator are of arc structures, and the oil separator is arranged eccentrically, compared with the traditional V-shaped built-in oil separator, the oil separator oil outlet of the oil separator is positioned on the shell between the lower portion of the built-in oil leakage plate and the side sealing plates, refrigerating oil is discharged from the oil outlet after passing through the built-in oil leakage plate, oil return of a compressor is facilitated, and complex pipelines are not needed in the oil separator. Namely, the preferable technical scheme of the invention provides the built-in oil component with a novel structure.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a cross-sectional view of a preferred embodiment of the horizontal condenser of the present invention;

FIG. 2 is a cross-sectional view of another preferred embodiment of the horizontal condenser of the present invention;

FIG. 3 is a schematic view of a preferred embodiment of the flow equalization plate of the present invention;

FIG. 4 is a schematic view of another preferred embodiment of a flow equalization plate of the present invention;

FIG. 5 is a schematic view of different openings of the flow equalization plate according to the present invention.

In the figure: 101. a housing; 201. a flow equalizing plate; 2011. a drain hole; 2012. an air vent; 2012a, a first air guide hole; 2012b, a second air guide hole; 202. a first fabric area; 2021. a first heat exchange tube; 2022. a second heat exchange tube; 203. a second fabric area; 2031. a third heat exchange tube; 204. collecting liquid; 301. an air inlet pipe; 302. an oil leakage plate is arranged in the oil tank; 303. side edge sealing plates; 304. an oil outlet; 305. an oil content filter screen; 306. an L-shaped porous oil filter plate; 307. a long and straight oil filter plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.

The horizontal condenser, the outdoor unit and the air conditioning system according to the present invention will be described in detail with reference to fig. 1 to 5 and embodiments 1 to 3 of the specification.

Example 1

This example describes the horizontal condenser of the present invention in detail.

The horizontal condenser of the present embodiment includes a shell 101, an oil distribution plate 201, as shown in fig. 1 or fig. 2. Preferably, the oil and flow equalizing plate 201 is built in the casing 101, as shown in fig. 1 or 2. More preferably, the oil component is located on one side of the casing 101 and eccentrically arranged, the flow equalizing plate 201 is located on the other side of the casing 101, the flow equalizing plate 201 is provided with a liquid guiding hole 2011 and a gas guiding hole 2012 with at least two apertures, the liquid guiding hole 2011 is used for flowing out of the condensed liquid, and the gas guiding hole 2012 is used for flowing the refrigerant gas and making the refrigerant gas flowing through the gas guiding hole 2012 uniform, as shown in fig. 1 to 5. As shown in fig. 1 or 2, the oil is eccentrically arranged in the present embodiment, which means that the oil is entirely located at the upper side inside the casing 101.

The horizontal condenser of this embodiment, for built-in oil content and the horizontal condenser of flow equalizing plate 201 integrated form, the oil content is located one side and the eccentric arrangement of casing 101, make the refrigerant gas distribution that gets into the heat transfer area in the area of managing through the oil content uneven, inhomogeneous air guide hole 2012 can carry out the gas equalization to the high temperature high pressure refrigerant gas that gets into the heat transfer area in the area of managing through the oil content on the horizontal condenser flow equalizing plate 201 of this embodiment, make inhomogeneous refrigerant gas flow become even after flowing through flow equalizing plate 201, thereby make the refrigerant gas who flows through the condenser pipe region even, promote the whole heat exchange efficiency of heat exchanger, prevent to appear that one side condenser pipe surface from producing the tube bank effect because of the condensation volume is big, cause condensation heat transfer performance to reduce, and the opposite side condenser pipe is because of the condensation volume is not enough, can's problem of its heat transfer ability can's unable full play. The horizontal condenser of this embodiment promptly can solve among the prior art "C" type built-in oil content asymmetric layout and lead to condenser pipe both sides heat transfer performance to reduce, causes the technical problem of the whole heat transfer decay of condenser.

According to a preferred embodiment, the flow equalizing plate 201 is obliquely disposed to a pipe area in the shell 101 and divides the pipe area into a first pipe area 202 and a second pipe area 203, and both sides of the flow equalizing plate 201 are connected to the shell 101 and the oil component, respectively, as shown in fig. 1 or 2. Preferably, the included angle between the flow equalizing plate 201 and the horizontal plane is 2-15 degrees. Preferably, the flow equalizing plate 201 is obliquely arranged at the middle position of the shell 101 to divide the pipe distribution area into an upper part and a lower part. The flow equalizing plate 201 of the preferred technical scheme of this embodiment is obliquely arranged, so that the liquid refrigerant can flow out of the liquid guide holes 2011 under the action of gravity.

Preferably, the liquid guiding hole 2011 is located at the lower end of the flow equalizing plate 201 and at the side of the flow equalizing plate 201 close to the shell 101, and the air guiding hole 2012 is located at the side of the flow equalizing plate 201 close to the oil, as shown in fig. 3 or fig. 4. The drain hole 2011 of the preferred technical scheme of this embodiment is located the lower one end of flow equalizing plate 201 and is located one side that flow equalizing plate 201 is close to casing 101, and the condensate that is convenient for its upper condensing tube to condense flows out from drain hole 2011 to flow to bottom collection liquid package 204 along casing 101 below, reduce the influence of upper portion condensate to the lower part condenser pipe.

Preferably, the air vents 2012 include a first air vent 2012a and a second air vent 2012b, wherein the first air vent 2012a is located at a side of the flow equalizing plate 201 close to the liquid vent 2011, and the second air vent 2012b is located at a side of the flow equalizing plate 201 close to the oil, as shown in fig. 3 or fig. 4. More preferably, the first air guide hole 2012a has a smaller diameter than the second air guide hole 2012b, as shown in FIGS. 3 to 5. After the high-temperature and high-pressure refrigerant gas passes through the eccentrically arranged oil, the refrigerant gas enters the heat exchange tube to be distributed unevenly, specifically, the high-temperature and high-pressure refrigerant gas close to one side of the oil is distributed less, and the high-temperature and high-pressure refrigerant gas close to one side of the shell 101 is distributed more, the flow equalizing plate 201 of the preferred technical scheme of the embodiment comprises air guide holes 2012 with two apertures, the aperture of a first air guide hole 2012a close to one side of a liquid guide hole 2011 is smaller than that of a second air guide hole 2012b close to one side of the oil, namely, a region with more high-temperature and high-pressure refrigerant gas is distributed correspondingly passes through the first air guide hole 2012a with a smaller aperture so as to slow down and/or reduce the passing of the high-temperature and high-pressure refrigerant gas, a region with less high-temperature and high-pressure refrigerant gas is distributed correspondingly passes through the second air guide hole 2012b with a larger aperture so as to accelerate and/or increase the passing of the high-temperature and high-pressure refrigerant gas, and passes through the flow equalizing effect of the first air guide hole 2012a and the second air guide hole 2012b, the uneven high-temperature and high-pressure refrigerant gas above the flow equalizing plate 201 passes through the first air guide hole 2012a and the second air guide hole 2012b and then becomes even, so that the refrigerant gas flowing through the lower condensation pipe area is even, and the heat exchange efficiency of the heat exchanger is improved. Not limited thereto, the air guide hole 2012 may have three or more apertures, so as to make the high-temperature and high-pressure refrigerant gas passing through the flow equalizing plate 201 more uniform.

Preferably, the liquid guide hole 2011, the first air guide hole 2012a and the second air guide hole 2012b are circular holes, as shown in fig. 3. Without being limited thereto, the liquid guide hole 2011, the first air guide hole 2012a and/or the second air guide hole 2012b may be holes having other shapes. Fig. 4 shows a schematic diagram of the drainage hole 2011 being a square hole.

Preferably, the liquid guide holes 2011 are single-row holes, and the diameter of each liquid guide hole 2011 is 6-12 mm; the first air guide holes 2012a and the second air guide holes 2012b are provided in a plurality of rows, and the diameter of the first air guide holes 2012a is 1-4 mm, and the diameter of the second air guide holes 2012b is 3-8 mm, as shown in fig. 3-5. More preferably, the diameter of the drainage hole 2011 is 8 mm; the first air guide hole 2012a has an aperture of 3mm, and the second air guide hole 2012b has an aperture of 6 mm. More preferably, the first air vents 2012a are six rows of holes, and the second air vents 2012b are eleven rows of holes, as shown in fig. 3 to 5. According to the preferred technical scheme of the embodiment, the aperture and the number of rows of the liquid guide holes 2011, the first air guide holes 2012a and the second air guide holes 2012b are limited, so that the air-equalizing effect of the flow equalizing plate 201 can be further improved, and the heat exchange efficiency of the heat exchanger can be further improved.

Preferably, the hole pitch of the liquid guide holes 2011 is 1.5-3 times of the hole diameter of the liquid guide holes; the hole pitch of the first air guide holes 2012a in the width and length directions of the flow equalizing plate 201 is 1.5-3 times of the hole diameter thereof; the hole pitch of the second air guide holes 2012b in the width and length directions of the flow equalizing plate 201 is 1.5 to 3 times of the hole diameter thereof. More preferably, the distance between the drainage holes 2011 is 2 times larger than the diameter of the drainage holes; the hole pitch of the first air guide holes 2012a in the width and length directions of the flow equalizing plate 201 is 2 times of the hole diameter thereof; the hole pitch of the second air guide holes 2012b in the width and length directions of the flow equalizing plate 201 is 2 times the hole diameter thereof. According to the preferred technical scheme of the embodiment, the hole spacing of the liquid guide holes 2011 and the hole spacing of the first air guide holes 2012a and the second air guide holes 2012b in the width direction and the length direction of the flow equalizing plate 201 are limited, so that the air equalizing effect of the flow equalizing plate 201 can be further improved, and the heat exchange efficiency of the heat exchanger can be further improved.

Preferably, the liquid guide holes 2011, the first air guide holes 2012a and the second air guide holes 2012b occupy the flow equalizing plate 201 with the width ratio: l1: L2: L3 is 1: 3: 15-1: 10: 15, wherein L1 is the width of the flow equalizing plate 201 occupied by the liquid guiding holes 2011, L2 is the width of the flow equalizing plate 201 occupied by the first air guiding holes 2012a, and L3 is the width of the flow equalizing plate 201 occupied by the second air guiding holes 2012b, as shown in fig. 5. More preferably, the liquid guide holes 2011, the first air guide holes 2012a and the second air guide holes 2012b occupy the flow equalizing plate 201 with the width ratio: l1: L2: L3 is 1: 5: 15. According to the preferred technical scheme of the embodiment, the width proportion of the flow equalizing plate 201 occupied by the liquid guide holes 2011, the first air guide holes 2012a and the second air guide holes 2012b is limited, so that the air equalizing effect of the flow equalizing plate 201 can be further improved, and the heat exchange efficiency of the heat exchanger can be further improved.

According to a preferred embodiment, the first and second heat exchange tubes 2021 and 2022 are arranged in the first and second manifold areas 202 and 203, respectively, are arranged with the third heat exchange tube 2031, as shown in fig. 2. Preferably, the first heat exchange tube 2021 is located in the de-superheating area, and the heat exchange area of the single first heat exchange tube 2021 is smaller than that of the single second heat exchange tube 2022 or the single third heat exchange tube 2031, as shown in fig. 2. More preferably, the first heat exchange tube 2021 is a light pipe or a two-dimensional finned condenser tube, and the second heat exchange tube 2022 and the third heat exchange tube 2031 are light pipes or three-dimensional finned condenser tubes. Specifically, the first heat exchange tube 2021 is a corresponding light pipe having a size one smaller than that of the second heat exchange tube 2022 or the third heat exchange tube 2031, or the first heat exchange tube 2021 is a two-dimensional finned condenser tube having the same size as that of the second heat exchange tube 2022 or the third heat exchange tube 2031. It is understood that the heat exchange area of the single first heat exchange tube 2021 may also be the same as the heat exchange area of the single second heat exchange tube 2022 or the single third heat exchange tube 2031.

Preferably, the total heat exchange area of the first heat exchange tube 2021 accounts for 3-10% of the total heat exchange area of the condenser. The vapor refrigerant discharged from the compressor is generally higher than the temperature corresponding to the vapor refrigerant under the saturation pressure, so that the vapor refrigerant is overheated, and the overheating removing area is an area for reducing the temperature of the overheated vapor refrigerant to the temperature corresponding to the saturation pressure, so that the vapor refrigerant can perform the next phase change heat exchange. For example, the de-superheating area is the framed portion of the first fabric zone 202, as shown in FIG. 2. The desuperheating process is a non-phase change heat exchange process, and therefore, the first heat exchange tube 2021 does not need to use a high-efficiency condensing tube. According to the preferred technical scheme of the embodiment, a single light tube or a two-dimensional fin condenser tube with a smaller heat exchange area is arranged in the superheat removing area, so that the waste of the heat exchange area can be avoided, the material cost of the shell tube can be reduced, and the technical problems that in the prior art, the heat exchange area and the cost are wasted due to the fact that the efficient condenser tube is used in the superheat removing area can be solved.

According to a preferred embodiment, the oil separation comprises an inlet pipe 301, an internal oil drain plate 302, side closing plates 303, an oil outlet 304, an oil separation screen 305, an L-shaped porous oil filter plate 306 and a long straight oil filter plate 307, as shown in fig. 1 or fig. 2. Preferably, two sides of the side sealing plates 303 are connected with the inner wall of the shell 101; the built-in oil leakage plate 302 and the long straight oil filtering plate 307 are positioned in a cavity formed by the side sealing plates 303 and the shell 101; the air inlet pipe 301 is inserted into a semi-closed cavity formed by the shell 101, the built-in oil leakage plate 302, the side sealing plate 303 and the long straight oil filtering plate 307; the oil separation filter screen 305 and the L-shaped porous oil filter plate 306 are positioned at the notch of the side sealing plate 303; an oil outlet 304 is located in the housing 101 between the side closure plates 303 and below the internal oil drain plate 302 and extends from the housing 101 as shown in fig. 1 or 2. More preferably, the air inlet pipe 301 is obliquely inserted into a semi-closed cavity formed by the shell 101, the built-in oil leakage plate 302, the side sealing plates 303 and the long straight oil filtering plate 307. The oblique insertion in the preferred embodiment means that the air inlet pipe 301 is inserted obliquely with respect to the housing 101. More preferably, the side closure plates 303 are arcuate in configuration. In a preferred embodiment of this embodiment, the side sealing plates 303 are arc-shaped structures, which means that the cross section of the side sealing plates 303 is arc-shaped, as shown in fig. 1 or fig. 2. The side shrouding 303 of the preferred technical scheme of this embodiment oil content is the arc structure to the oil content is eccentric to be arranged, compares with the built-in oil content of traditional "V" type, and the oil content oil outlet 304 of the preferred technical scheme of this embodiment is located built-in oil drain plate 302 below, and oil outlet 304 is located the casing 101 between built-in oil drain plate 302 and side shrouding 303, and the refrigerated oil is discharged from oil outlet 304 behind built-in oil drain plate 302, is convenient for the compressor oil return, need not complicated pipeline in the oil content. Namely, the preferred technical scheme of the embodiment provides the built-in oil component with a novel structure. It is to be understood that the oil component according to the preferred embodiment of the present invention may be a "C" type oil component.

Fig. 2 illustrates the separation process of the refrigerant gas and the refrigeration oil in the oil portion by two arrows, wherein the dashed arrow represents the refrigerant gas and the solid arrow represents the refrigeration oil. As shown in fig. 2, the high-temperature and high-pressure gaseous refrigerant mixed refrigeration oil enters the oil portion from the air inlet pipe 301, and through separation modes such as collision separation, gravity settling, filter screen separation and the like, the gaseous refrigerant flows into the heat exchange pipe area from the oil portion upper gap, and the refrigeration oil returns to the compressor from the oil outlet 304 in the middle of the shell 101, so that oil-gas separation is realized.

Preferably, the arc length of the cross section of the side closing plate 303 is 1/5-1/2 of the perimeter of the cross section of the shell 101. The size of the side closing plate 303 of the preferred technical scheme of this embodiment is determined based on the specification of casing 101, and the preferred cross-section arc length of side closing plate 303 is 1/5 ~ 1/2 of casing 101 cross-section girth, can guarantee that the oil content has sufficient oil-gas separation space. In the preferred embodiment of the present invention, the cross-sectional arc length of the side sealing plate 303 may also be referred to as the width of the side sealing plate 303, and the cross-sectional arc length of the side sealing plate 303 is as shown in fig. 1 or fig. 2.

Example 2

The present embodiment will explain the outdoor unit of the present invention in detail.

The outdoor unit of the present embodiment includes an outdoor unit main body and a condenser located in the outdoor unit main body. Preferably, the condenser is the horizontal condenser of any one of the technical solutions in embodiment 1. Preferably, the outdoor unit body is a part of the outdoor unit of the air conditioner except for the condenser, and the structure of the outdoor unit body may be the same as that of the prior art, which is not described herein again. The outdoor unit of this embodiment, including the horizontal condenser of any one of technical solutions in embodiment 1, because the horizontal condenser can make inhomogeneous refrigerant gas become even after flowing through flow equalizing plate 201 to make the refrigerant gas that flows through the condenser pipe region even, promote the whole heat exchange efficiency of heat exchanger, and then make the heat exchange efficiency of this embodiment outdoor unit promote. The off-premises station of this embodiment promptly can solve among the prior art "C" type built-in oil content asymmetric layout and lead to condenser pipe both sides heat transfer performance to reduce, causes the technical problem of the whole heat transfer decay of condenser.

Example 3

This embodiment will explain the air conditioning system of the present invention in detail.

The air conditioning system comprises an indoor unit and an outdoor unit. Preferably, the outdoor unit according to any one of embodiments 2. Preferably, the structure of the indoor unit can be the same as that of the prior art, and is not described herein again. Preferably, the air conditioning system of the present embodiment is a water-cooled central air conditioning system. The air conditioning system of this embodiment, including the outdoor unit of any one of embodiment 2, improves the heat exchange efficiency of the outdoor unit, so that the heat exchange efficiency of the air conditioning system using the outdoor unit of any one of embodiment 2 is also improved. The air conditioning system of this embodiment promptly can solve among the prior art "C" type built-in oil content asymmetric layout and lead to condenser pipe both sides heat transfer performance to reduce, causes the technical problem of the whole heat transfer decay of condenser.

In the description of the present invention, it is to be noted that, unless otherwise specified, "a plurality" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as appropriate to those of ordinary skill in the art.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.