Tank bag type evaporator

Abstract

The utility model relates to the technical field of evaporators, and provides a tank package type evaporator which comprises a first shell and a second shell, the first shell is arranged on the outer side of the second shell in a sleeved mode, and a refrigerant flowing cavity for refrigerant flowing is formed between the first shell and the second shell. A refrigerant input end connected with the condenser and a refrigerant output end connected with the compressor are arranged on the refrigerant flowing cavity, and a heat exchange acting surface for exchanging heat with the outside is formed on the outer side surface of the refrigerant flowing cavity. The refrigerant flowing cavity allowing the refrigerant to flow is designed between the first shell and the second shell, the whole refrigerant flowing cavity allows the refrigerant to flow, the heat exchange area is large, and the working efficiency of the evaporator is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to evaporator technical field, concretely relates to a tank bag type evaporator. BACKGROUND

[0002] The existing evaporator usually adopts spiral coil or spiral pipeline to supply the refrigerant to flow, and the refrigerant flows along the spiral coil or spiral pipeline and exchanges heat with the outside, and the spiral coil and the spiral pipeline have small heat exchange area. For example, a shell and tube type evaporator for snow melting machine is disclosed in Chinese patent No. 202121653907. X, which comprises an outer cylinder, an inner cylinder is arranged in the outer cylinder, a spiral flow channel is arranged between the outer wall of the inner cylinder and the inner wall of the outer cylinder, a refrigerant inlet is arranged at one end of the spiral flow channel, and a refrigerant outlet is arranged at the other end. SUMMARY

[0003] The utility model provides a tank bag type evaporator, the refrigerant flow cavity for refrigerant flow is designed between the first shell and the second shell, the whole refrigerant flow cavity supplies refrigerant flow, the heat exchange area is big, the evaporator work efficiency is high, and the setting of the spiral coil is cancelled, the process is simple, and the whole evaporator structure is simplified.

[0004] A tank bag type evaporator designed for this purpose, comprising a first shell and a second shell, the first shell is sleeved outside the second shell, a refrigerant flow cavity for refrigerant flow is formed between the first shell and the second shell, a refrigerant input end connected with a condenser and a refrigerant output end connected with a compressor are arranged on the refrigerant flow cavity, and the outer side surface of the first shell corresponding to the refrigerant flow cavity is a heat exchange surface.

[0005] The refrigerant flow cavity comprises a first refrigerant flow cavity arranged between the inner circumferential side of the first shell and the outer circumferential side of the second shell and a second refrigerant flow cavity arranged between the inner end of the first shell and the outer end of the second shell, and the first refrigerant flow cavity and the second refrigerant flow cavity are communicated; the outer circumferential side of the first shell corresponding to the first refrigerant flow cavity is a first annular heat exchange surface, and the outer end surface of the first shell corresponding to the second refrigerant flow cavity is a second end heat exchange surface.

[0006] The projections of the first annular heat exchange surface and the second end heat exchange surface coincide in the side view direction, and the projections of the first annular heat exchange surface and the second end heat exchange surface do not coincide in the top view direction.

[0007] A positioning column for abutting against the outer end of the second shell is arranged on the inner end of the first shell, so that the first shell has a spacing between the inner end and the second shell for forming the second refrigerant flow cavity. Alternatively, the first shell is sleeved outside the second shell, and the outer end of the second shell abuts against the inner end of the shell.

[0008] The first shell and the second shell are provided with a mounting portion for mounting a temperature detector, and the temperature detector is mounted on the mounting portion in a limiting manner.

[0009] The inner diameter of the refrigerant input end is smaller than the inner diameter of the refrigerant output end.

[0010] The refrigerant input end is arranged on one side of the refrigerant output end and is arranged adjacent to the refrigerant output end, or the refrigerant input end is arranged opposite to the refrigerant output end.

[0011] The evaporator further comprises a connecting flange arranged on the opening end of the refrigerant flow cavity, and the connecting flange is provided with a refrigerant input end connector connected with the refrigerant input end and a refrigerant output end connector connected with the refrigerant output end.

[0012] The evaporator further comprises a mounting plate arranged on the outer side of the first shell, and the mounting plate is arranged on one side of the connecting flange, and a sealing groove portion for mounting a sealing ring is formed between the mounting plate and the connecting flange.

[0013] The first shell and the second shell are provided with a sealing surface at one end and a mounting portion for inserting a rotating shaft, and the other end of the first shell and the second shell is open and forms an opening of the refrigerant flow cavity.

[0014] The beneficial technical effects of the present application are as follows:

[0015] The first shell and the second shell are designed to form a refrigerant flow cavity for refrigerant flow, and the entire refrigerant flow cavity is used for refrigerant flow, so that the heat exchange area is large and the working efficiency of the evaporator is high.

[0016] A sealing groove portion for mounting a sealing ring is formed between the mounting plate and the connecting flange, so as to prevent the refrigerant from leaking out along the fitting gap between the first shell and the second shell.

[0017] Sealing structures are arranged between the mounting portions of the first shell and the second shell and the rotating shaft, so as to prevent the refrigerant from entering the second shell and prevent the refrigerant from flowing out of the first shell. BRIEF DESCRIPTION OF DRAWINGS

[0018] The present application will be further described in detail below in combination with the drawings and specific embodiments.

[0019] Figure 1 It is a three-dimensional structure schematic view of the evaporator of the first embodiment of the present application.

[0020] Figure 2 It is another three-dimensional structure schematic view of the evaporator of the first embodiment of the present application.

[0021] Figure 3 It is the three-dimensional sectional structure schematic view of the evaporator of the first embodiment of the utility model.

[0022] Figure 4 It is the three-dimensional sectional structure schematic view of the evaporator of the second embodiment of the utility model. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be apparently and completely described below, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. In order to make the above purposes, features and advantages of the present application more obvious and easy to understand, a lot of specific details are set forth in the following description to facilitate a full understanding of the present application. But the present application can be implemented in many other ways different from the description herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application, therefore the present application is not limited by the following disclosed specific embodiments.

[0024] First embodiment:

[0025] Referring to Figures 1-3 A can package type evaporator, comprising a first shell 1 and a second shell 2, the first shell 1 is sleeved outside the second shell 2, the first shell 1 and the second shell 2 form the refrigerant flow cavity 3 for the refrigerant flow, the refrigerant flow cavity 3 is provided with the refrigerant input end 4 connected with the condenser and the refrigerant output end 5 connected with the compressor, the outer side surface of the first shell 1 corresponding with the refrigerant flow cavity 3 is the heat exchange surface.

[0026] The refrigerant flow cavity 3 includes the first refrigerant flow cavity 12 arranged between the inner circumferential side of the first shell 1 and the outer circumferential side of the second shell 2, and the outer circumferential side of the first shell 1 corresponding to the first refrigerant flow cavity 12 is a first annular heat exchange surface 14.

[0027] The refrigerant flow cavity 3 further includes the second refrigerant flow cavity 13 arranged between the inner end of the first shell 1 and the outer end of the second shell 2, and the outer end surface of the first shell 1 corresponding to the second refrigerant flow cavity 13 is a second end heat exchange surface 15. The first refrigerant flow cavity 12 and the second refrigerant flow cavity 13 are communicated.

[0028] In the embodiment, the first annular heat exchange surface 14 and the second end heat exchange surface 15 can effectively increase the heat exchange area, and realize that the evaporator end can be heat exchanged.

[0029] The projections of the first annular heat exchange surface 14 and the second end heat exchange surface 15 in the side view direction coincide, and the projections of the first annular heat exchange surface 14 and the second end heat exchange surface 15 in the top view direction do not coincide.

[0030] The first shell 1 is provided with a positioning column 16 on the inner end for abutting against the outer end of the second shell 2, so that the inner end of the first shell 1 and the outer end of the second shell 2 are spaced apart to form the second refrigerant flow cavity 13.

[0031] The first shell 1 and the second shell 2 are provided with a mounting portion 6 for mounting a temperature detector, and the temperature detector is limitedly mounted on the mounting portion 6. The temperature detector can detect the temperature of the liquid outside the evaporator, for example, the evaporator is placed in the cavity of the device liquid, so that the temperature detection probe of the temperature detector faces the cavity and detects the temperature of the liquid in the cavity, and the liquid in the cavity exchanges heat with the evaporator.

[0032] The mounting portion 6 is in a sleeve structure, and the first shell 1 and the second shell 2 are each provided with a through hole for inserting the mounting portion 6; the mounting portion 6 is arranged at the end of the evaporator, and the mounting portion 6 is away from the refrigerant input end 4 and / or the refrigerant output end 5.

[0033] The inner diameter of the refrigerant input end 4 is smaller than the inner diameter of the refrigerant output end 5. When the refrigerant enters the refrigerant flow cavity 3 through the refrigerant input end 4 with a smaller inner diameter, the refrigerant flows at a high speed, so that the refrigerant can quickly fill the entire refrigerant flow cavity 3, and the refrigerant flows out of the refrigerant flow cavity 3 through the refrigerant output end 5 with a larger inner diameter, and the resistance is small, so that the refrigerant is output smoothly.

[0034] The refrigerant input end 4 is arranged on one side of the refrigerant output end 5, and the refrigerant input end 4 and the refrigerant output end 5 are arranged adjacent to each other.

[0035] Since the refrigerant input end 4 and the refrigerant output end 5 are arranged adjacent to each other, the refrigerant enters away from the refrigerant output end 5, flows along the refrigerant flow cavity 3, and then is output through the refrigerant output end 5.

[0036] Alternatively, the refrigerant input end 4 and the refrigerant output end 5 are arranged opposite to each other.

[0037] The evaporator further comprises a connecting flange 7 arranged on one open end of the refrigerant flow cavity 3, and the connecting flange 7 is provided with a refrigerant input end connector 8 connected with the refrigerant input end 4 and a refrigerant output end connector 9 connected with the refrigerant output end 5.

[0038] In this embodiment, the connecting flange 7 is provided with a plurality of circumferentially spaced fixing holes.

[0039] The evaporator further comprises a mounting plate 10 arranged on the outside of the first shell 1, and the mounting plate 10 is arranged on one side of the connecting flange 7, and a sealing groove portion for mounting a sealing ring is formed between the mounting plate 10 and the connecting flange 7. The sealing ring can prevent the refrigerant from leaking outwards from the fitting gap between the first shell 1 and the second shell 2.

[0040] The first shell 1 and the second shell 2 are provided with sealing surfaces at one end and assembly parts 11 penetrating the rotating shaft, and the other end of the first shell 1 and the second shell 2 are open and form the opening of the refrigerant flow cavity 3.

[0041] In the embodiment, the mounting plate 10 can be integrated with the first shell 1, and the first shell 1 can be welded, injection molded or metal punched.

[0042] In the embodiment, the connecting flange 7 can be integrated with the second shell 2, and the second shell 2 can be welded, injection molded or metal punched.

[0043] In the embodiment, the evaporator can be applied to a snow melting machine.

[0044] Second embodiment:

[0045] Referring to Figure 4 The difference between the tank package type evaporator and the first embodiment is that the evaporator does not have a second refrigerant flow cavity 13, the first shell 1 is sleeved outside the second shell 2, and the outer end of the second shell 2 abuts against the inner end of the shell 1.

[0046] The refrigerant flow cavity 3 includes a first refrigerant flow cavity 12 arranged between the inner circumferential side of the first shell 1 and the outer circumferential side of the second shell 2, and the outer circumferential side of the first shell 1 corresponding to the first refrigerant flow cavity 12 is a first annular heat exchange surface 14.

[0047] The above is only a preferred embodiment of the present application, and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

[0048] In the above description of the present application, it should be understood that if these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0049] In addition, the terms "first", "second", and the like, if any, are used herein for descriptive purposes only and should not be construed as indicating or implying relative importance or identifying the number of the indicated technical features. Thus, a feature limited to "first" or "second" can explicitly or implicitly include at least one of the features. In the description of the present application, if the term "a plurality of" appears, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0050] In the above description of the present application, unless otherwise explicitly specified and limited, if the terms "mounting", "connecting", "connecting", "fixing" and the like appear, these terms should be interpreted broadly. For example, it can be fixed connection by screw, rivet or welding, or it can be detachable connection, or it can be integrated by metal processing (die casting, deep drawing stamping, lathe machining, etc.), or it can be mechanical connection, or it can be electrical connection; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0051] In the above description of the present application, unless otherwise explicitly specified and limited, if the first feature is described as "on" or "under" the second feature, etc., it can mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the second feature, or it can only mean that the first feature is higher than the second feature in horizontal height. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the second feature, or it can only mean that the first feature is lower than the second feature in horizontal height.

[0052] It should be noted that if an element is referred to as "fixed to" or "disposed on" another element, it can be directly on another element or there can be a middle element. If an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the present application are only for illustrative purposes and do not represent the only implementation.

Claims

1. A can-pack evaporator, characterized in that: The invention comprises a first shell (1) and a second shell (2), wherein the first shell (1) is sleeved on the outside of the second shell (2), and a refrigerant flow cavity (3) for refrigerant flow is formed between the first shell (1) and the second shell (2), and a refrigerant input end (4) and a refrigerant output end (5) are provided on the refrigerant flow cavity (3), and the outer side surface corresponding to the first shell (1) and the refrigerant flow cavity (3) is a heat exchange surface.

2. The can-pack evaporator according to claim 1, characterized in that: The refrigerant flow cavity (3) comprises a first refrigerant flow cavity (12) arranged between the inner peripheral side of the first shell (1) and the outer peripheral side of the second shell (2); the outer peripheral side of the first shell (1) corresponding to the first refrigerant flow cavity (12) is a first annular heat exchange surface (14).

3. The can-pack evaporator according to claim 2, characterized in that: The refrigerant flow cavity (3) further includes a second refrigerant flow cavity (13) arranged between the inner end of the first shell (1) and the outer end of the second shell (2); the first refrigerant flow cavity (12) is connected to the second refrigerant flow cavity (13); and the outer end surface of the first shell (1) corresponding to the second refrigerant flow cavity (13) is a second end heat exchange surface (15).

4. The can-pack evaporator according to claim 3, characterized in that: A positioning column (16) is provided on the inner end of the first shell (1) for abutting against the outer end of the second shell (2), so that a gap is provided between the inner end of the first shell (1) and the outer end of the second shell (2) to form a second refrigerant flow cavity (13); or, the first shell (1) is sleeved on the outside of the second shell (2), and the outer end of the second shell (2) abuts against the inner end of the shell (1).

5. The can-pack evaporator according to claim 1, characterized in that: A mounting portion (6) for mounting a temperature detector is provided between the first shell (1) and the second shell (2), and the temperature detector is positionally mounted on the mounting portion (6); the mounting portion (6) is a sleeve-shaped structure, and both the first shell (1) and the second shell (2) are provided with a through hole for inserting the mounting portion (6); the mounting portion (6) is arranged at the end of the evaporator, and the mounting portion (6) is away from the refrigerant input end (4) and / or the refrigerant output end (5).

6. The can-pack evaporator according to claim 1, characterized in that: The inner diameter of the refrigerant input end (4) is smaller than the inner diameter of the refrigerant output end (5).

7. The can-pack evaporator according to claim 1, characterized in that: The refrigerant input end (4) is arranged on one side of the refrigerant output end (5), and the refrigerant input end (4) and the refrigerant output end (5) are arranged adjacent to each other; or, the refrigerant input end (4) and the refrigerant output end (5) are arranged opposite to each other.

8. The can-pack evaporator according to claim 1, characterized in that: The evaporator further comprises a connecting flange (7) arranged on an open end of the refrigerant flow cavity (3), and the connecting flange (7) is provided with a refrigerant input end connector (8) connected to the refrigerant input end (4), and a refrigerant output end connector (9) connected to the refrigerant output end (5).

9. The can-pack evaporator according to claim 8, characterized in that: The evaporator further comprises a mounting plate (10) arranged on the outside of the first shell (1), the mounting plate (10) being arranged on one side of the connecting flange (7), and a sealing groove portion for mounting a sealing ring being formed between the mounting plate (10) and the connecting flange (7).

10. The can-pack evaporator according to claim 1, characterized in that: One end of the first shell (1) and the second shell (2) are both sealed surfaces and provided with an assembly portion (11) for inserting a rotating shaft, and the other ends of the first shell (1) and the second shell (2) are both open and form an opening of a refrigerant flow cavity (3).

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