Symmetrical parallel efficient double-evaporator

Abstract

The utility model discloses a symmetrical parallel type efficient double evaporator which comprises a left evaporator assembly and a right evaporator assembly, the left evaporator assembly and the right evaporator assembly are arranged in a bilateral symmetry mode, and the left evaporator assembly and the right evaporator assembly are both communicated with an inlet three-way pipe assembly and an outlet three-way pipe assembly. The inlet three-way pipe assembly and the outlet three-way pipe assembly are arranged in the center of the left evaporator assembly and the center of the right evaporator assembly in parallel and form a refrigerant circulation loop with the left evaporator assembly and the right evaporator assembly. Through the design that the double evaporators are symmetrically arranged and connected in parallel, the refrigerant flow resistance of a refrigerating system is small, refrigerant distribution is more uniform, the refrigerating performance of the evaporators is greatly improved, and the designed double evaporators are compact in structure, large in refrigerating capacity, high in heat exchange efficiency and capable of being widely applied to large air conditioning systems with high refrigerating requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of evaporators, in particular to a symmetrical parallel high-efficiency double evaporator. Background Art

[0002] Double parallel flow evaporator has been widely used in air-conditioning system, and the technology is becoming more and more mature. There are many types of double parallel flow evaporator cores. The commonly used double parallel flow evaporator core thickness is 38mm, 45mm, 22-32mm, etc. The above specifications of evaporator assembly can basically meet the needs of conventional vehicle air conditioners and small commercial air conditioners, but now the demand for cooling capacity of vehicle and large commercial air conditioners is getting higher and higher.

[0003] However, at present, large-scale commercial air conditioners are still mainly based on single evaporators, which have defects such as small evaporator size and insufficient refrigeration capacity. The air conditioning system with a dual evaporator layout has the problems of unreasonable dual evaporator structure layout and uneven distribution of refrigerant at the evaporator inlet, resulting in large differences in refrigerant flow on both sides of the dual evaporator, uneven refrigerant distribution, insufficient refrigeration capacity and heat exchange efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a symmetrical parallel high-efficiency dual evaporator, wherein the dual evaporators are symmetrically arranged and connected in parallel, the refrigerant flow resistance is small and the refrigerant is evenly distributed, the refrigeration capacity is large and the heat exchange efficiency is high, so as to solve the above-mentioned problems existing in the prior art.

[0005] To achieve the above purpose, the utility model provides the following solutions:

[0006] The utility model provides a symmetrical parallel high-efficiency dual evaporator, comprising a left evaporator assembly and a right evaporator assembly, the left evaporator assembly and the right evaporator assembly are symmetrically arranged on the left and right, the left evaporator assembly and the right evaporator assembly are both connected with an inlet three-way pipe assembly and an outlet three-way pipe assembly, and the inlet three-way pipe assembly and the outlet three-way pipe assembly are arranged in parallel in the middle of the left evaporator assembly and the right evaporator assembly, and form a refrigerant circulation circuit with the left evaporator assembly and the right evaporator assembly.

[0007] Preferably, the left evaporator assembly is provided with a first collecting pipe, and the first collecting pipe is provided with a first refrigerant inlet hole and a first refrigerant outlet hole, the first refrigerant inlet hole is connected to the inlet three-way pipe assembly, and the first refrigerant outlet hole is connected to the outlet three-way pipe assembly.

[0008] Preferably, the right evaporator assembly is provided with a second collecting pipe, and the second collecting pipe is provided with a second refrigerant inlet hole and a second refrigerant outlet hole, the second refrigerant inlet hole is connected to the inlet three-way pipe assembly, and the second refrigerant outlet hole is connected to the outlet three-way pipe assembly.

[0009] Preferably, both the left evaporator assembly and the right evaporator assembly adopt double parallel flow evaporators.

[0010] Preferably, a spacer is provided between the first refrigerant inlet hole and the first refrigerant outlet hole, and between the second refrigerant inlet hole and the second refrigerant outlet hole.

[0011] Preferably, the inlet tee pipe assembly includes an inlet pipe, which is connected to a symmetrically arranged left inlet pipe and a right inlet pipe through an inlet Y-shaped tee, the left inlet pipe is connected to the first refrigerant inlet hole, and the right inlet pipe is connected to the second refrigerant inlet hole.

[0012] Preferably, the outlet tee pipe assembly includes an outlet pipe, which is connected to a symmetrically arranged left outlet pipe and a right outlet pipe through an outlet Y-shaped tee, the left outlet pipe is connected to the first refrigerant outlet hole, and the right outlet pipe is connected to the second refrigerant outlet hole.

[0013] Preferably, the angle a of the inlet Y-shaped tee is 1 60°≤a 1 ≤120°, internal diversion aperture d 1 5mm≤d 1 ≤10mm.

[0014] Preferably, the angle a of the outlet Y-shaped tee is 2 60°≤a 2 ≤120°, internal diversion aperture d 2 8mm≤d 2 ≤16mm.

[0015] Preferably, the straight section L of the hard pipe connecting the inlet pipe and the inlet Y-shaped tee in the inlet tee pipe assembly is L≥60 mm.

[0016] Compared with the prior art, the utility model has achieved the following beneficial technical effects:

[0017] The utility model provides a symmetrical parallel high-efficiency dual evaporator, which optimizes the layout structure of the dual evaporators. The left and right evaporators adopt a completely symmetrical design structure, so that the refrigerant flow resistance of the left and right evaporators on both sides is consistent, thereby ensuring that the flow rate entering the left and right evaporators on both sides is consistent, and the left and right evaporators are connected in parallel, which further reduces the refrigerant flow resistance of the system and improves the refrigeration capacity and heat exchange efficiency of the dual evaporators.

[0018] The utility model provides a symmetrical parallel high-efficiency dual evaporator, which optimizes the Y-shaped three-way structure of the inlet three-way pipe and the outlet three-way pipe, so that the connecting pipes connecting the left evaporator and the right evaporator are completely symmetrically designed, and the inlet three-way pipe and the outlet three-way pipe are centrally arranged in the middle of the left evaporator and the right evaporator, further ensuring that the refrigerant resistance on both sides of the dual evaporators is consistent, making the refrigerant distribution more uniform, improving the refrigeration performance and heat exchange efficiency of the dual evaporators, and achieving the purpose of rapid refrigeration.

[0019] The utility model provides a symmetrical parallel high-efficiency double evaporator, which has high refrigeration capacity and heat exchange efficiency and can be widely used in large-scale air-conditioning systems with high refrigeration requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 A schematic diagram of the structure of a symmetrical parallel high-efficiency double evaporator provided by the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the pipeline connection part in a symmetrical parallel high-efficiency double evaporator provided by the utility model;

[0023] Figure 3 This is a partial structural diagram of the left and right evaporator components in a symmetrical parallel high-efficiency double evaporator provided by the utility model;

[0024] Figure 4 A schematic diagram of the structure of a portion of an inlet three-way pipe assembly in a symmetrical parallel high-efficiency double evaporator provided by the utility model;

[0025] Figure 5 The utility model provides a symmetrical parallel high-efficiency double evaporator inlet Y-shaped three-way structure schematic diagram. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] The utility model aims to provide a symmetrical parallel high-efficiency double evaporator to solve the problems existing in the prior art.

[0028] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0029] Embodiment 1:

[0030] This embodiment provides a symmetrical parallel high-efficiency dual evaporator, such as Figure 1 As shown, it includes a left evaporator assembly 1 and a right evaporator assembly 2, and the left evaporator assembly 1 and the right evaporator assembly 2 are symmetrically arranged on the left and right. The left evaporator assembly 1 and the right evaporator assembly 2 are both connected with the inlet three-way pipe assembly 3 and the outlet three-way pipe assembly 4, and the inlet three-way pipe assembly 3 and the outlet three-way pipe assembly 4 are arranged in parallel in the middle of the left evaporator assembly 1 and the right evaporator assembly 2, so that the structures on both sides of the double evaporators are consistent and the refrigerant circulation resistance is the same, which is beneficial to the uniform distribution of the refrigerant flow on both sides of the double evaporators, and forms a refrigerant circulation loop with the left evaporator assembly 1 and the right evaporator assembly 2.

[0031] As an implementation method, Figure 1 , 2 As shown in Figures 3 and 4, the left evaporator assembly 1 is provided with a first collecting pipe 101, and the first collecting pipe 101 is provided with a first refrigerant inlet hole 1011 and a first refrigerant outlet hole 1012. The first refrigerant inlet hole 1011 is connected to the inlet three-way pipe assembly 3, and the first refrigerant outlet hole 1012 is connected to the outlet three-way pipe assembly 4.

[0032] As an embodiment, the right evaporator assembly 2 is provided with a second collecting pipe 201, and the second collecting pipe 201 is provided with a second refrigerant inlet hole 2011 and a second refrigerant outlet hole 2012. The second refrigerant inlet hole 2011 is connected to the inlet three-way pipe assembly 3, and the second refrigerant outlet hole 2012 is connected to the outlet three-way pipe assembly 4.

[0033] As an implementation mode, both the left evaporator assembly 1 and the right evaporator assembly 2 adopt double parallel flow evaporators.

[0034] As an implementation mode, a partition 102 is provided between the first refrigerant inlet hole 1011 and the first refrigerant outlet hole 1012, and between the second refrigerant inlet hole 2011 and the second refrigerant outlet hole 2012. The partition 102 divides the evaporator core into four processes. A number of guide plates are also provided at the corresponding positions of the evaporator's collecting pipe to make the refrigerant distribution more uniform.

[0035] As an implementation method, Figure 2 , 3As shown in FIGS. 4 and 5 , the inlet tee pipe assembly 3 includes an inlet pipe 301 , which is connected to a symmetrically arranged left inlet pipe 303 and a right inlet pipe 304 through an inlet Y-shaped tee 302 , the left inlet pipe 303 is connected to the first refrigerant inlet hole 1011 , and the right inlet pipe 304 is connected to the second refrigerant inlet hole 2011 .

[0036] As an embodiment, the outlet tee pipe assembly 4 includes an outlet pipe 401, which is connected to a symmetrically arranged left outlet pipe 403 and a right outlet pipe 404 through an outlet Y-shaped tee 402, the left outlet pipe 403 is connected to the first refrigerant outlet hole 1012, and the right outlet pipe 404 is connected to the second refrigerant outlet hole 2012.

[0037] As an embodiment, the angle a of the inlet Y-shaped tee 302 is 1 is 100°, the internal diversion aperture d 1 It is 7mm.

[0038] As an embodiment, the angle a of the outlet Y-shaped tee 402 is 2 is 100°, the internal diversion aperture d 2 It is 13mm.

[0039] As an implementation mode, the straight section L of the hard pipe connecting the inlet pipe 301 and the inlet Y-type tee 302 in the inlet tee pipe assembly 3 is L≥60mm, which is beneficial for the refrigerant to be rectified after passing through the inlet pipe 301 and before entering the inlet Y-type tee 302, thereby preventing uneven distribution of refrigerant flow on both sides of the dual evaporator.

[0040] The utility model provides a symmetrical parallel high-efficiency dual evaporator. When the refrigerant enters the inlet pipe 301 of the inlet tee pipe assembly 3, and after reaching the inlet Y-shaped tee 302, it is split through the inlet Y-shaped tee 302. The first refrigerant enters the first inlet hole 1011 of the left evaporator 1 through the left inlet pipe 303, and the refrigerant flows out from the first outlet hole 1012 after passing through the internal flow channel of the left evaporator assembly 1. The second refrigerant enters the second inlet hole 2011 of the right evaporator assembly 2 through the right inlet pipe 304. The refrigerant flows out through the second inlet hole 2011 of the right evaporator assembly 2 through the right inlet pipe 304. After passing through the internal flow channel of the right evaporator assembly 2, it flows out from the second outlet hole 2012. After the two refrigerants flow out of the left and right evaporators, the first refrigerant flows out from the left outlet pipe 403 of the outlet tee pipe assembly 4, and the second refrigerant flows out from the right outlet pipe 404, and then converges at the outlet Y-type tee pipe 402. Finally, the two merged refrigerants flow out through the outlet pipe 401, forming a refrigerant circulation loop. The low-temperature refrigerant flowing through the dual evaporators evaporates to reduce the temperature of the hot air flowing through the surface of the dual evaporators, thereby achieving the purpose of rapid cooling of the air-conditioning system. The utility model discloses a symmetrical parallel high-efficiency dual evaporator, by optimizing the arrangement structure of the dual evaporators, and the left and right evaporators adopt a completely symmetrical design structure, so that the refrigerant flow resistance of the left and right evaporators on both sides is consistent, thereby ensuring that the flow rate entering the left and right evaporators on both sides is consistent, and the left and right evaporators are connected in parallel, further reducing the system refrigerant flow resistance, and improving the refrigeration capacity and heat exchange efficiency of the dual evaporators; by optimizing the Y-type tee structure of the inlet tee and the outlet tee, the connecting pipeline connecting the left evaporator and the right evaporator is designed to be completely symmetrical, and the inlet tee and the outlet tee are centrally arranged in the middle of the left evaporator and the right evaporator, further ensuring that the refrigerant resistance on both sides of the dual evaporators is consistent, making the refrigerant distribution more uniform, improving the refrigeration performance and heat exchange efficiency of the dual evaporators, and achieving the purpose of rapid refrigeration; the utility model discloses a symmetrical parallel high-efficiency dual evaporator with high refrigeration capacity and heat exchange efficiency, and can be widely used in large-scale air-conditioning systems with high refrigeration requirements.

[0041] The utility model uses specific examples to illustrate the principle and implementation of the utility model. The above examples are only used to help understand the method and core idea of ​​the utility model. At the same time, for those skilled in the art, according to the idea of ​​the utility model, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the utility model.

Claims

1. A symmetrical parallel high-efficiency double evaporator, characterized in that: The invention comprises a left evaporator assembly (1) and a right evaporator assembly (2), wherein the left evaporator assembly (1) and the right evaporator assembly (2) are symmetrically arranged on the left and right, and the left evaporator assembly (1) and the right evaporator assembly (2) are both connected to an inlet three-way pipe assembly (3) and an outlet three-way pipe assembly (4), and the inlet three-way pipe assembly (3) and the outlet three-way pipe assembly (4) are arranged in parallel in the middle of the left evaporator assembly (1) and the right evaporator assembly (2), and form a refrigerant circulation circuit with the left evaporator assembly (1) and the right evaporator assembly (2).

2. The symmetrical parallel high-efficiency dual evaporator according to claim 1 is characterized in that: The left evaporator assembly (1) is provided with a first collecting pipe (101), and the first collecting pipe (101) is provided with a first refrigerant inlet hole (1011) and a first refrigerant outlet hole (1012), the first refrigerant inlet hole (1011) is connected to the inlet three-way pipe assembly (3), and the first refrigerant outlet hole (1012) is connected to the outlet three-way pipe assembly (4).

3. The symmetrical parallel high-efficiency dual evaporator according to claim 2 is characterized in that: The right evaporator assembly (2) is provided with a second collecting pipe (201), and the second collecting pipe (201) is provided with a second refrigerant inlet hole (2011) and a second refrigerant outlet hole (2012), the second refrigerant inlet hole (2011) is connected to the inlet three-way pipe assembly (3), and the second refrigerant outlet hole (2012) is connected to the outlet three-way pipe assembly (4).

4. The symmetrical parallel high-efficiency dual evaporator according to claim 3 is characterized in that: The left evaporator assembly (1) and the right evaporator assembly (2) both adopt double parallel flow evaporators.

5. The symmetrical parallel high-efficiency dual evaporator according to claim 3 is characterized in that: A spacer is provided between the first refrigerant inlet hole (1011) and the first refrigerant outlet hole (1012), and between the second refrigerant inlet hole (2011) and the second refrigerant outlet hole (2012).

6. The symmetrical parallel high-efficiency dual evaporator according to claim 3 is characterized in that: The inlet three-way pipe assembly (3) includes an inlet pipe (301), and the inlet pipe (301) is connected to a symmetrically arranged left inlet pipe (303) and a right inlet pipe (304) through an inlet Y-type tee (302), the left inlet pipe (303) is connected to the first refrigerant inlet hole (1011), and the right inlet pipe (304) is connected to the second refrigerant inlet hole (2011).

7. The symmetrical parallel high-efficiency dual evaporator according to claim 6 is characterized in that: The outlet three-way pipe assembly (4) includes an outlet pipe (401), and the outlet pipe (401) is connected to a symmetrically arranged left outlet pipe (403) and a right outlet pipe (404) through an outlet Y-type tee (402), and the left outlet pipe (403) is connected to the first refrigerant outlet hole (1012), and the right outlet pipe (404) is connected to the second refrigerant outlet hole (2012).

8. The symmetrical parallel high-efficiency dual evaporator according to claim 7 is characterized in that: The included angle a1 of the inlet Y-shaped tee (302) is 60°≤a1≤120°, and the internal diversion aperture d1 is 5mm≤d1≤10mm.

9. The symmetrical parallel high-efficiency dual evaporator according to claim 7, characterized in that: The angle a2 of the outlet Y-shaped tee (402) is 60°≤a2≤120°, and the internal diversion aperture d2 is 8mm≤d2≤16mm.

10. The symmetrical parallel high-efficiency dual evaporator according to claim 7, characterized in that: The straight section L of the hard pipe connecting the inlet pipe (301) and the inlet Y-shaped tee (302) in the inlet tee pipe assembly (3) is L≥60 mm.

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