Condensing assembly and condensing device

Abstract

The utility model provides a condensation assembly which comprises a condensation pipe provided with a cooling liquid inlet and a cooling liquid outlet. The condensing shell penetrates through the condensing shell, a condensing cavity is formed between the outer wall of the condensing shell and the pipe wall of the condensing pipe, and a steam inlet and a condensed liquid outlet are formed in the condensing shell; the fins are arranged on the outer side of the pipe wall of the condensation pipe and located in the condensation cavity. The utility model further provides a condensing device comprising the condensing assembly. According to the condensation assembly and the condensation device, the fins are arranged outside the condensation pipe, and the contact area of steam and the cold wall face is increased; the fins outside the condensation pipe are coiled outside the condensation pipe, after steam and liquid drops condensed by the steam flow through the spiral fins, gas and liquid phases generate rotational flow, the liquid drops condensed on the fins can be separated from the surfaces of the fins under the action of centrifugal force, condensation and liquid discharge are achieved at the same time, and the condensation efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of heat dissipation technology, and in particular to a condensation assembly and a condensation device. Background Art

[0002] With the advancement of science and technology, electronic devices have been widely developed. The data processing function, storage function and communication function of electronic devices have been greatly improved. As electronic devices are developed, they will generate high heat during operation. If the heat cannot be dissipated in time, the electronic devices will not operate normally, and in serious cases, they will be damaged.

[0003] At present, the heat dissipation methods for electronic equipment include using fans to dissipate heat, and immersing the electronic equipment directly in a container with a heat dissipation medium. When the electronic equipment is in the container with the heat dissipation medium, the heat is transferred from the electronic equipment to the liquid, causing the liquid to boil and generate steam. The steam condenses on the heat exchanger in the container, and transfers the heat to the circulating cooling water in the data center for cooling, thus realizing the cooling process.

[0004] At present, the existing technical solutions of condensation heat dissipation devices use condensation tubes to cool the steam, and the steam is isolated from the cooling medium by metal tubes. The steam is condensed in the metal tubes, and the outside of the tubes is cooled by air or liquid.

[0005] In the process of realizing the present invention, the inventors found that there are at least the following problems in the prior art: on the one hand, the steam is cooled by contact with the inner wall of the metal tube. Since the area of ​​the inner wall of the metal tube is limited, the steam condensation effect is also limited; on the other hand, after the steam condenses, a layer of condensation liquid film will be formed on the inner wall of the metal tube. The condensation liquid film hinders the subsequent contact and condensation of the steam with the cold wall surface, and also affects the steam condensation effect. Summary of the invention

[0006] In view of this, the present application proposes a condensation assembly and a condensation device capable of improving the steam condensation effect.

[0007] To achieve the above objectives, the present application provides a condensing assembly, comprising:

[0008] A condenser, each of which is provided with a coolant inlet and a coolant outlet;

[0009] A condensation shell, wherein the condensation tube passes through the condensation shell and forms a condensation cavity between the outer wall of the condensation shell and the tube wall of the condensation tube, and the condensation shell is provided with a steam inlet and a condensed liquid outlet;

[0010] The fins are arranged on the outside of the tube wall of the condenser tube and located in the condenser cavity.

[0011] In one embodiment, the fin is a belt-shaped heat-conducting metal sheet and is coiled around the outer side of the tube wall of the condenser tube.

[0012] In one embodiment, the fin is a spiral fin arranged around the condenser tube, and a starting position of the fin is opposite to the steam inlet.

[0013] In one embodiment, the fins are cylindrical spiral fins arranged around the axis of the condenser tube.

[0014] In one embodiment, a gap is left between the outer edge of the fin and the inner wall of the condensation shell.

[0015] In one embodiment, the width w of the fin, the helical lead h of the fin, and the gap d between the outer edge of the fin and the inner wall of the condensation shell satisfy: w>h>d.

[0016] In one embodiment, the fins are conical spiral fins arranged around the axis of the condenser tube, and the width of the fins decreases from near the steam inlet to the condensed liquid outlet.

[0017] In one embodiment, the condenser is a heat-conducting metal straight tube with its axis arranged in a vertical direction, and the coolant inlet and the coolant outlet are respectively arranged at the upper end and the lower end.

[0018] In one embodiment, the condensation shell is cylindrical and coaxially arranged with the condensation tube, the steam inlet is arranged at the upper part of the outer wall of the condensation shell and perpendicular to the axis of the condensation tube, and the condensed liquid outlet is arranged at the lower part of the outer wall of the condensation shell.

[0019] To achieve the above objectives, the present application also provides a condensing device, including the condensing assembly described above.

[0020] The condensation assembly and condensation device provided by the present application include at least the following beneficial effects: In the condensation assembly and condensation device of the present application, fins are arranged outside the condensation tube, and the fins serve as the expansion area of ​​the outer wall of the condensation tube, increasing the contact area between the steam and the cold wall surface; the fins outside the condensation tube are coiled outside the condensation tube, and the steam and the condensed droplets of the steam flow through the spiral fins, and the gas-liquid two-phase swirl is generated. Under the action of centrifugal force, the condensed droplets on the fins will separate from the fin surface, realizing condensation and drainage, and improving the condensation efficiency. Since the condensed droplets are discharged in time during the steam condensation process, the steam dryness on the condensation wall surface can be guaranteed, and the subsequent steam condensation effect will not be affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of a condenser according to an embodiment of the present application;

[0022] Figure 2 for Figure 1 A perspective structural diagram of a condenser in FIG.

[0023] Figure 3 for Figure 1 A schematic diagram of the three-dimensional structure of the condenser tube and fins of the condenser;

[0024] Figure 4 for Figure 1 Schematic diagram of the cross-sectional structure of the condenser.

[0025] The components in the figure are labeled as follows:

[0026] Condenser 100;

[0027] Condenser 110 (including coolant inlet 111 and coolant outlet 112);

[0028] Condensation housing 120 (including steam inlet 121, condensed liquid outlet 122, condensation chamber 123);

[0029] Ribs 130. DETAILED DESCRIPTION

[0030] Before describing the embodiments in detail, it should be understood that the present application is not limited to the detailed structure or component arrangement described below or in the drawings in the present application. The present application may be an embodiment implemented in other ways. Moreover, it should be understood that the words and terms used herein are only used for descriptive purposes and should not be interpreted restrictively. The words "including", "comprising", "having" and the like used herein are meant to include the items listed thereafter, their equivalents and other additional items. In particular, when describing "a certain element", the present application does not limit the number of the element to one, but may also include multiple elements.

[0031] See also Figure 1 and Figure 2 The structure of the condenser 100 of one embodiment of the present application is shown in the figure, and includes a condenser tube 110, a condenser shell 120, and fins 130. The condenser shell 120 is filled with steam; the condenser tube 110 passes through the condenser shell 120, and the cooling medium flows through the condenser shell 120 through the condenser tube 110 to cool the steam entering the condenser shell 120; the fins 130 are arranged outside the condenser tube 100 and placed in the condenser shell 120.

[0032] Specifically, the condenser 110 is provided with a coolant inlet 111 and a coolant outlet 112, respectively, and the cooling medium (including but not limited to coolants such as water) enters from the coolant inlet 111 and flows out from the coolant outlet 112. In the illustrated embodiment, the condenser 110 is a heat-conducting metal straight tube with its axis arranged in the vertical direction, and the coolant inlet 111 and the coolant outlet 112 are arranged at the upper end and the lower end, respectively, that is, the cooling medium enters from the coolant inlet 111 at the upper end, passes through the condensation shell 120 in the vertical direction, and flows out from the coolant outlet 112 at the lower end. In other embodiments, the setting direction and shape of the condenser 110 can be adjusted according to the application scenario, such as the condenser 110 is a heat-conducting metal straight tube with its axis inclined to the vertical direction, and the condenser 110 can also be a heat-conducting metal curved tube.

[0033] The condensation shell 120 is cylindrical and is coaxially arranged with the condensation tube 110, that is, the condensation tube 110 passes through the condensation shell 120 along the axial direction, so that the cooling medium in the condensation tube 110 flows through the condensation shell 120 along the circumferential direction. The condensation shell 120 is provided with a steam inlet 121 and a condensation liquid outlet 122, and a condensation chamber 123 is formed inside the condensation shell 120. Saturated steam or superheated steam enters the condensation chamber 123 through the steam inlet 121, cools and condenses into liquid in the condensation chamber 123, and the condensed liquid formed after condensation flows out through the condensation liquid outlet 122. In the illustrated embodiment, the steam inlet 121 is arranged at the upper part of the outer wall of the condensation shell 120 and is arranged perpendicular to the axis of the condensation tube 110, and the condensation liquid outlet 122 is arranged at the lower part of the outer wall of the condensation shell 120, and the condensation chamber 123 is formed between the outer wall of the condensation shell 120 and the tube wall of the condensation tube 110 passing through the condensation shell 120. In other embodiments, the shape of the condensing shell 120 can be adjusted according to the shape of the condensing tube 110, the shape of the fins 130, etc. In the illustrated embodiment, the condensing shell 120 is cylindrical as an example. The shape of the condensing shell 120 includes but is not limited to being cylindrical.

[0034] Please refer to Figure 3 , the fin 130 is arranged on the outside of the tube wall of the condenser 110 and is located in the condensation chamber 123. The fin 130 is a belt-shaped heat-conducting metal sheet, which is spirally coiled on the outside of the tube wall of the condenser 110, and is used to contact the steam entering the condensation chamber 123. The spiral fin 130 can be used as an expansion area of ​​the condenser 110 to increase the contact area with the steam, accelerate condensation, and improve the condensation effect. In the illustrated embodiment, the fin 130 is a cylindrical spiral sheet arranged around the axis of the condenser 110, that is, the contact between the fin 130 and the condenser 110 is a cylindrical spiral surface of the axis of the condenser 110. The starting position of the fin 130 is opposite to the steam inlet 121 (see Figure 2 ), so that the steam entering the condensation chamber 123 from the steam inlet 121 contacts the upper end of the fin 130 and the condensation tube 110.

[0035] See also Figure 4 , which is an axial cross-sectional view of the condenser 100. The working process of the above-mentioned condenser 100 is as follows: saturated steam or superheated steam (as shown in the upper right corner of the figure) enters the interior of the condensation chamber 123 through the steam inlet 121 at a certain flow rate, and the saturated steam or superheated steam contacts the condensation tube 110 and the fins 130 inside the condensation chamber 123 and condenses into liquid.

[0036] During the condensation process using the condenser 100, the saturated steam or superheated steam flowing through the fins 130 and the gradually condensed liquid will experience a swirling phenomenon. Under the action of centrifugal force, the liquid condensed on the fins 130 is subjected to a relatively large centrifugal force due to its high density. Under the action of centrifugal force, the condensed liquid is thrown to the inner wall of the condensation shell 120, flows down along the inner wall of the condensation shell 120, and flows out from the condensed liquid outlet 122.

[0037] The steam condensed on the fins 130 is subjected to a relatively small centrifugal force due to its low density. The steam will be mainly concentrated in the center of the condensation chamber 123 and continue to contact the fins 130 and the condenser tube 110. On the fins 130, the steam can be condensed and separated from the gas and liquid at the same time, avoiding the formation of liquid film on the cold wall surfaces such as the rotating fins 130 and the condenser tube 110, which hinders the heat transfer between the steam and the cold wall surface, thereby improving the condensation efficiency.

[0038] According to the above working principle, a gap d is left between the outer edge of the fin 130 and the inner wall of the condensation shell 120 (see Figure 4 ) so that the condensed liquid after the steam is cooled flows down from the gap d along the inner wall of the condensation shell 120. Since the fins 130 are used to increase the contact area between the steam in the condensation chamber 123 and the cold wall surface, the lead h of the fins 130 (see Figure 4 ) is as small as possible, and the width w of the rib 130 (see Figure 4 ) is as large as possible. Considering that if the width w of the fin 130 is too large, the temperature of the edge portion away from the condenser 110 may be much higher than the center portion close to the condenser 110, the width w of the fin 130 should not be too large. The size of the fin 130 can be set as follows: w>h>d.

[0039] In the above illustrated embodiment, the cylindrical spiral fin 130 is used as an example for description. It should be noted that in other embodiments, the fin 130 may also be a conical spiral fin, that is, the width of the fin 130 decreases from the position close to the steam inlet 121 (i.e., the coolant inlet 111) to the condensed liquid outlet 122 (i.e., the coolant outlet 112).

[0040] The present application also provides a condensing device, including the above-mentioned condenser 100. The condensing device can be used as a condenser in a refrigeration system for heat exchange.

[0041] In the condensation assembly and condensation device of the present application, fins are provided outside the condenser tube, and the fins serve as the expansion area of ​​the outer wall of the condenser tube, increasing the contact area between the steam and the cold wall surface. In addition, the shape of the fins outside the condenser tube is set to be spiral, and the steam and the condensed droplets of steam flow through the spiral fins, and the gas-liquid two-phase swirl is generated. Under the action of centrifugal force, the condensed droplets on the fins will separate from the fin surface, achieving condensation and drainage, thereby improving the condensation efficiency. Since the condensed droplets are discharged in time during the steam condensation process, the steam dryness on the condensation wall surface can be guaranteed, and the subsequent steam condensation effect is not affected.

[0042] The concepts described herein may be implemented in other forms without departing from their spirit and characteristics. The specific embodiments disclosed should be considered illustrative rather than restrictive. Therefore, the scope of this application is determined by the appended claims rather than by the preceding description. Any changes within the literal meaning and equivalent scope of the claims should fall within the scope of these claims.

Claims

1. A condensation assembly, It is characterized in that include: A condenser (110), wherein the condenser (110) is provided with a cooling liquid inlet (111) and a cooling liquid outlet (112); A condensation shell (120), wherein the condensation tube (110) passes through the condensation shell (120) and forms a condensation chamber (123) between the outer wall of the condensation shell (120) and the tube wall of the condensation tube, and the condensation shell (120) is provided with a steam inlet (121) and a condensed liquid outlet (122); A fin (130), wherein the fin (130) is arranged on the outside of the tube wall of the condenser tube (110) and is located in the condenser chamber (123).

2. The condensation assembly according to claim 1, Features: The fin (130) is a strip-shaped heat-conducting metal sheet and is coiled around the outside of the tube wall of the condenser tube (110).

3. The condensation assembly according to claim 2, Features: The fin (130) is a spiral fin arranged around the condenser (110), and the starting position of the fin (130) is opposite to the steam inlet (121).

4. The condensation assembly according to claim 3, Features: The fin (130) is a cylindrical spiral fin arranged around the axis of the condenser tube (110).

5. The condensation assembly according to claim 1, Features: A gap is left between the outer edge of the fin (130) and the inner wall of the condensation shell (120).

6. The condensation assembly according to claim 5, Features: The width w of the fin (130), the helical lead h of the fin (130), and the gap d between the outer edge of the fin (130) and the inner wall of the condensation shell (120) satisfy: w>h>d.

7. The condensation assembly according to claim 3, Features: The fin (130) is a conical spiral fin arranged around the axis of the condenser tube (110), and the width of the fin (130) decreases from the vicinity of the steam inlet (121) to the condensed liquid outlet (122).

8. The condensation assembly according to any one of claims 1 to 7, Features: The condenser tube (110) is a heat-conducting metal straight tube whose axis is arranged in a vertical direction, and the cooling liquid inlet (111) and the cooling liquid outlet (112) are arranged at the upper end and the lower end, respectively.

9. The condensation assembly according to claim 8, Features: The condensation shell (120) is cylindrical and is coaxially arranged with the condensation tube (110), the steam inlet (121) is arranged at the upper part of the outer wall of the condensation shell (120) and is perpendicular to the axis of the condensation tube (110), and the condensed liquid outlet (122) is arranged at the lower part of the outer wall of the condensation shell (120).

10. A condensing device, Features: It comprises a condensation assembly (100) as claimed in any one of claims 1 to 9.

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