A vertical flash drum and water cooling unit

Abstract

The utility model discloses a vertical flash evaporation cylinder and water cooling unit, vertical flash evaporation cylinder includes: casing, gas -liquid two -phase refrigerant import, liquid refrigerant export and gaseous refrigerant export, and the casing includes the upper chamber and lower chamber along the first direction arrangement, and the lower chamber includes the first chamber and second chamber along the second direction arrangement, and the upper chamber includes the third chamber and fourth chamber along the second direction arrangement, first chamber and second chamber are communicated, and first chamber is communicated with third chamber, and third chamber is communicated with fourth chamber through second chamber, gas -liquid two -phase refrigerant import is communicated with first chamber, and liquid refrigerant export is communicated with second chamber, and gaseous refrigerant export is communicated with fourth chamber. Due to vertical flash evaporation cylinder is vertical structure, makes gas -liquid two -phase refrigerant flow along height direction, after entering the upper chamber, reciprocating flow in third chamber, second chamber and fourth chamber in the upper and lower, thereby can extend the flow path of gaseous refrigerant, guarantees the separation effect of gas -liquid two -phase refrigerant.

Description

Technical Field

[0001] This utility model relates to the technical field of flash evaporators, and in particular to a vertical flash evaporator and a water-cooled unit. Background Technology

[0002] Traditional water-cooled chiller units use horizontal flash cylinders, which are large in length and diameter, resulting in a large footprint. Consequently, the placement of the flash cylinders on the entire water-cooled chiller unit requires a significant amount of space, leading to a large footprint and high cost.

[0003] Therefore, how to reduce the floor space occupied by the flash evaporator of the water-cooled unit is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] In view of this, the present invention provides a vertical flash evaporator, which is spatially arranged in the height direction, thereby reducing the floor space occupied by the flash evaporator of the water-cooled unit. Furthermore, this embodiment also provides a water-cooled unit having the aforementioned vertical flash evaporator.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A vertical flash evaporator includes: a shell, the shell including an upper chamber and a lower chamber arranged along a first direction, the lower chamber including a first chamber and a second chamber arranged along a second direction, the upper chamber including a third chamber and a fourth chamber arranged along the second direction, the first direction and the second direction intersecting; The first chamber and the second chamber are connected, the first chamber is connected to the third chamber, and the third chamber is connected to the fourth chamber through the second chamber; The system includes a two-phase refrigerant inlet, a liquid refrigerant outlet, and a gaseous refrigerant outlet. The two-phase refrigerant inlet is connected to the first chamber, the liquid refrigerant outlet is connected to the second chamber, and the gaseous refrigerant outlet is connected to the fourth chamber.

[0006] Preferably, in the above-mentioned vertical flash evaporator, the shell is divided into a first chamber and a second chamber by a first vertical plate; Furthermore, there is a gap between the first vertical plate and the shell that connects the first chamber and the second chamber.

[0007] Preferably, in the above-described vertical flash evaporator, the first chamber and the second chamber are at the same height along the first direction, and the volume of the first chamber is smaller than the volume of the second chamber.

[0008] Preferably, in the above-mentioned vertical flash evaporator, the shell is divided into an upper chamber and a lower chamber by a porous baffle; Furthermore, the first chamber and the third chamber are connected through the porous baffle; the third chamber and the fourth chamber are connected to the second chamber through the porous baffle.

[0009] Preferably, in the above-mentioned vertical flash evaporator, the shell is divided into the third chamber and the fourth chamber, which are independent of each other, by the second vertical plate.

[0010] Preferably, in the above-mentioned vertical flash evaporator, the second vertical plate and the first vertical plate are arranged in a staggered manner, and the second vertical plate is located close to the outlet of the gaseous refrigerant.

[0011] Preferably, in the above-mentioned vertical flash evaporator, the shell is a cylindrical structure, and the volume of the upper chamber is smaller than the volume of the lower chamber.

[0012] Preferably, in the above-mentioned vertical flash evaporator, the liquid refrigerant outlet and the gaseous refrigerant outlet are arranged opposite to each other along the first direction.

[0013] A water-cooled unit includes a flash evaporator, wherein the flash evaporator is a vertical flash evaporator as described in any of the preceding claims.

[0014] Preferably, the above-mentioned water-cooled unit further includes a compressor, a condenser, and an evaporator; the compressor's air inlet is connected to the gaseous refrigerant outlet of the vertical flash evaporator, the compressor's exhaust port is connected to the condenser's inlet, and the compressor's suction port is connected to the evaporator's outlet; The gas-liquid two-phase refrigerant inlet of the vertical flash evaporator is connected to the outlet of the condenser, and the liquid refrigerant outlet of the vertical flash evaporator is connected to the inlet of the evaporator.

[0015] This utility model discloses a vertical flash evaporator. When the vertical flash evaporator is working: the gas-liquid two-phase refrigerant enters the first chamber through the gas-liquid two-phase refrigerant inlet and separates in the first chamber. The liquid refrigerant enters the second chamber, and the gaseous refrigerant enters the third chamber. During the flow in the third chamber, the gaseous refrigerant enters the top of the second chamber and then enters the fourth chamber during the flow in the second chamber, and is discharged through the gaseous refrigerant outlet.

[0016] The vertical flash evaporator in this embodiment has a vertical structure, which allows the gas-liquid two-phase refrigerant to flow along the height direction inside the vertical flash evaporator. After entering the upper chamber, it flows back and forth in the third, second, and fourth chambers, thereby extending the flow path of the gaseous refrigerant and ensuring the separation effect of the gas-liquid two-phase refrigerant. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a front internal view of the vertical flash evaporator disclosed in an embodiment of the present utility model; Figure 2 for Figure 1 A cross-sectional view along the AA direction; Figure 3 This is a schematic diagram of the structure of the water-cooled unit disclosed in the embodiment of this utility model. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0021] Traditional water-cooled chiller units use horizontal flash cylinders, which are relatively long and have a large diameter. This results in a large footprint for the flash cylinders, requiring a significant amount of space to be allocated to their placement within the chiller unit. Consequently, the chiller unit has a large footprint and high cost.

[0022] Based on the above-mentioned technical problems, this application discloses a vertical flash evaporator, which is spatially arranged in the height direction, thereby reducing the volume of the ground occupied by the flash evaporator of the water-cooled unit.

[0023] like Figure 1 As shown, the vertical flash evaporator includes: a shell 1, a gas-liquid two-phase refrigerant inlet 21, a liquid refrigerant outlet 22, and a gaseous refrigerant outlet 23.

[0024] The shell 1 includes an upper chamber and a lower chamber, the upper chamber includes a first chamber 11 and a second chamber 12, and the lower chamber includes a third chamber 13 and a fourth chamber 14.

[0025] The upper and lower chambers are arranged along a first direction of the shell 1, the first chamber 11 and the second chamber 12 are arranged along a second direction of the shell 1, and the third chamber 13 and the fourth chamber 14 are arranged along a second direction of the shell 1. In this document, the first direction is the height direction of the shell 1, and the second direction intersects with the first direction. Optionally, the second direction is perpendicular to the first direction.

[0026] In this embodiment, the first chamber 11 is connected to the second chamber 12, and the first chamber 11 is connected to the gas-liquid two-phase refrigerant inlet 21, while the second chamber 12 is connected to the liquid refrigerant outlet 22.

[0027] In some embodiments, the first chamber 11 and the second chamber 12 may be connected by a slit or perforated plate. For example, as Figure 2 As shown, the first chamber 11 and the second chamber 12 can be obtained by dividing them by the first vertical plate 3. That is, the lower chamber of the shell 1 has the first vertical plate 3 arranged along the first direction. The first vertical plate 3 can be a perforated plate or a plate with a gap between the first vertical plate 3 and the side plate of the shell 1, so as to allow the liquid refrigerant to flow between the first chamber 11 and the second chamber 12.

[0028] In this embodiment, the third chamber 13 and the first chamber 11 are arranged along the first direction, and the third chamber 13 is connected to the first chamber 11 and the third chamber 13 is connected to the second chamber 12; the fourth chamber 14 and the second chamber 12 are arranged along the first direction, and the second chamber 12 is connected to the fourth chamber 14. Thus, the third chamber 13 is connected to the fourth chamber 14 through the second chamber 12.

[0029] In some embodiments, a second vertical plate 5 is provided in the upper chamber, which divides the upper chamber into a third chamber 13 and a fourth chamber 14. The third chamber 13 and the fourth chamber 14 are not connected through the second vertical plate 5, that is, the third chamber 13 and the fourth chamber 14 are not directly connected along the second direction.

[0030] In some embodiments, a porous baffle 4 arranged along a first direction is provided inside the housing 1, which divides the housing 1 into an upper chamber and a lower chamber.

[0031] The holes on the porous baffle 4 allow for communication between the first chamber 11 and the third chamber 13, as well as between the third chamber 13 and the second chamber 12, and between the second chamber 12 and the fourth chamber 14.

[0032] In order to enable the third chamber 13 and the second chamber 12 to be connected through the perforated baffle 4, the dimension of the third chamber 13 along the second direction in this embodiment is larger than the dimension of the first chamber 11 along the second direction, so that the third chamber 13 can be opposite to the second chamber 12 along the first direction.

[0033] As can be seen from the structure of the vertical flash evaporator disclosed above, the gas-liquid two-phase refrigerant can enter the first chamber 11 through the gas-liquid two-phase refrigerant inlet 21 of this embodiment, and separate in the first chamber 11. The liquid refrigerant enters the second chamber 12 through the first vertical plate 3, while the gaseous refrigerant enters the third chamber 13 through the holes of the porous baffle 4. During the flow in the third chamber 13, it enters the top of the second chamber 12 through the holes of the porous baffle 4. During the flow in the second chamber 12, it enters the fourth chamber 14 through the holes of the porous baffle 4 and is discharged through the gaseous refrigerant outlet 23.

[0034] The vertical flash evaporator in this embodiment has a vertical structure, which allows the gas-liquid two-phase refrigerant to flow along the height direction inside the vertical flash evaporator and to flow back and forth between the porous baffle 4 in the upper chamber, thereby extending the flow path of the gaseous refrigerant and ensuring the separation effect of the gas-liquid two-phase refrigerant.

[0035] In some embodiments, the second vertical plate 5 and the first vertical plate 3 are staggered, and the second vertical plate 5 is positioned closer to the gaseous refrigerant outlet 23 in the first direction than the first vertical plate 3. That is, the distance from the second vertical plate 5 to the gaseous refrigerant outlet 23 in the second direction is less than the distance from the first vertical plate 3 to the gaseous refrigerant outlet 23 in the second direction. In this way, the third chamber 13 and a portion of the second chamber 12, as well as the first chamber 11, are all relative to each other.

[0036] The vertical flash evaporator has a cylindrical structure. Optionally, the vertical flash evaporator can be a cylindrical or rectangular cylinder. In this embodiment, the vertical flash evaporator is described using a cylindrical cylinder as an example. However, the cylindrical vertical flash evaporator is not a specific limitation of the vertical flash evaporator.

[0037] In some embodiments, the volume of the upper chamber of the vertical flash evaporator is smaller than the volume of the lower chamber. Setting the volume of the upper chamber to be smaller can accelerate the flow rate of the gaseous refrigerant and prevent the gaseous refrigerant from accumulating in the third chamber 13, thus affecting the gas-liquid separation efficiency of the vertical flash evaporator.

[0038] The specific sizes of the upper and lower chambers can be set according to different needs, and this embodiment does not specifically limit them.

[0039] In some embodiments, the first chamber 11 and the second chamber 12 are at the same height along the first direction in the vertical flash evaporator, that is, the first chamber 11 and the second chamber 12 are set at the same height, so that the porous baffle 4 is a flat plate structure in the second direction.

[0040] In some embodiments, the volume of the first chamber 11 is smaller than the volume of the second chamber 12, and the smaller volume of the first chamber 11 is beneficial to accelerate the flow of gaseous refrigerant in the gas-liquid two-phase refrigerant in the first chamber 11 and improve the separation efficiency of the gas-liquid two-phase refrigerant.

[0041] The size of the first chamber 11 and the second chamber 12 can be set according to different needs, and this application does not specifically limit it.

[0042] In some embodiments, the liquid refrigerant outlet 22 and the gaseous refrigerant outlet 23 are arranged opposite to each other along a first direction. This can be understood as the axis of the liquid refrigerant outlet 22 and the axis of the gaseous refrigerant outlet 23 coinciding in the first direction. In other alternative embodiments, the liquid refrigerant outlet 22 and the gaseous refrigerant outlet 23 may also be arranged in a staggered manner along the first direction.

[0043] This application also discloses a water-cooled unit, including a flash evaporator, wherein the flash evaporator is the flash evaporator disclosed in the above embodiments. Therefore, the water-cooled unit with the flash evaporator also has all the above-mentioned technical effects, which will not be elaborated here.

[0044] like Figure 3 As shown, the water-cooled unit in this embodiment also includes a compressor 200, a condenser 300, and an evaporator 400. The compressor 200's air intake port is connected to the gaseous refrigerant outlet 23 of the vertical flash evaporator 100, and the compressor 200's air intake port is connected to the evaporator 400's outlet. The vertical flash evaporator 100's two-phase refrigerant inlet 21 is connected to the condenser 300's outlet, and the vertical flash evaporator 100's liquid refrigerant outlet 22 is connected to the evaporator 400's inlet.

[0045] In accordance with the above connection method, during the operation of the water-cooled unit, the gas-liquid two-phase refrigerant from the condenser 300 enters the first chamber 11 through the gas-liquid two-phase refrigerant inlet 21 at the bottom of the vertical flash evaporator 100 along the axial direction of the condenser 300. Since the density of the liquid refrigerant is greater than that of the gaseous refrigerant, the weight of the liquid refrigerant is greater than that of the gaseous refrigerant. Therefore, the liquid refrigerant falls to the bottom of the vertical flash evaporator 100, while the gaseous refrigerant moves upward along the first chamber 11. The liquid refrigerant in the first chamber 11 enters the second chamber 12 through the gaps at both ends of the first vertical plate 3, and then enters the evaporator 400 from the liquid refrigerant outlet 22 of the second chamber 12. The gaseous refrigerant in the first chamber 11 enters the third chamber 13 through the upper perforated baffle 4, then enters the fourth chamber 14 through the top of the second chamber 12, and finally enters the gas supply port of the compressor 200 through the gaseous refrigerant outlet 23.

[0046] Since the gaseous refrigerant needs to be deflected back and forth at the porous baffle 4 during the process of entering the fourth chamber 14 from the first chamber 11, the flow path of the gaseous refrigerant in the vertical flash evaporator 100 is increased, the flow time of the gaseous refrigerant in the vertical flash evaporator 100 is increased, the separation height of the gas-liquid phase refrigerant is improved, and the gas-liquid separation is better. During the process of the gaseous refrigerant flowing into the second chamber 12 after being deflected by the porous baffle 4, the separated liquid refrigerant can also fall directly into the second chamber 12, reducing the flow path of the liquid refrigerant.

[0047] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0048] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A vertical flash evaporator, characterized in that, include: The housing (1) includes an upper chamber and a lower chamber arranged along a first direction, the lower chamber including a first chamber (11) and a second chamber (12) arranged along a second direction, and the upper chamber including a third chamber (13) and a fourth chamber (14) arranged along the second direction, the first direction and the second direction intersecting; The first chamber (11) and the second chamber (12) are connected, the first chamber (11) is connected to the third chamber (13), and the third chamber (13) is connected to the fourth chamber (14) through the second chamber (12); The gas-liquid two-phase refrigerant inlet (21), liquid refrigerant outlet (22) and gaseous refrigerant outlet (23) are connected to the first chamber (11), the liquid refrigerant outlet (22) is connected to the second chamber (12) and the gaseous refrigerant outlet (23) is connected to the fourth chamber (14).

2. The vertical flash evaporator according to claim 1, characterized in that, The housing (1) is divided into the first chamber (11) and the second chamber (12) by the first vertical plate (3); Furthermore, there is a gap between the first vertical plate (3) and the shell (1) that connects the first chamber (11) and the second chamber (12).

3. The vertical flash evaporator according to claim 2, characterized in that, The first chamber (11) and the second chamber (12) are at the same height along the first direction, and the volume of the first chamber (11) is smaller than the volume of the second chamber (12).

4. The vertical flash evaporator according to any one of claims 1 to 3, characterized in that, The housing (1) is divided into an upper chamber and a lower chamber by a perforated baffle (4); The first chamber (11) and the third chamber (13) are connected through the porous baffle (4); the third chamber (13) and the fourth chamber (14) are connected to the second chamber (12) through the porous baffle (4).

5. The vertical flash evaporator according to claim 2 or 3, characterized in that, The housing (1) is divided into the third chamber (13) and the fourth chamber (14) by the second vertical plate (5).

6. The vertical flash evaporator according to claim 5, characterized in that, The second vertical plate (5) and the first vertical plate (3) are arranged in a staggered manner, and the second vertical plate (5) is set close to the gaseous refrigerant outlet (23).

7. The vertical flash evaporator according to any one of claims 1 to 3, characterized in that, The shell (1) is a cylindrical structure, and the volume of the upper chamber is smaller than the volume of the lower chamber.

8. The vertical flash evaporator according to any one of claims 1 to 3, characterized in that, The liquid refrigerant outlet (22) and the gaseous refrigerant outlet (23) are arranged opposite to each other along the first direction.

9. A water-cooled unit, characterized in that, Includes a flash evaporator, wherein the flash evaporator is a vertical flash evaporator (100) as described in any one of claims 1 to 8.

10. The water-cooled unit according to claim 9, characterized in that, It also includes a compressor (200), a condenser (300), and an evaporator (400); The air inlet of the compressor (200) is connected to the gaseous refrigerant outlet (23) of the vertical flash evaporator (100), the exhaust port of the compressor (200) is connected to the inlet of the condenser (300), and the suction port of the compressor (200) is connected to the outlet of the evaporator (400). The gas-liquid two-phase refrigerant inlet (21) of the vertical flash evaporator (100) is connected to the outlet of the condenser (300), and the liquid refrigerant outlet (22) of the vertical flash evaporator (100) is connected to the inlet of the evaporator (400).

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