Condensing assembly and condensing device

Abstract

The invention 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 invention 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 technical field of heat dissipation, and particularly relates to a condensation component and a condensation device. Background Art

[0002] With the progress of technology, electronic devices have been widely developed. The data processing function, storage function, and communication function of electronic devices have made great progress. While the electronic devices are developing, during operation, they will generate relatively high heat. If the heat cannot be dissipated in time, it will cause the electronic devices to fail to operate normally, and in severe cases, it will damage the electronic devices.

[0003] Currently, there are two ways to dissipate heat from electronic devices. One is to dissipate heat through a fan, and the other is to directly immerse the electronic device in a container with a heat dissipation medium. When the electronic device is in the container with the heat dissipation medium, heat is transferred from the electronic device to the liquid, causing the liquid to boil and generate vapor. The vapor condenses on the heat exchanger in the container, transferring the heat to the cooling water circulating in the data center for cooling to achieve the cooling process.

[0004] Currently, in the technical solutions of existing condensation heat dissipation devices, a condensation tube is used to cool the vapor, and the vapor is isolated from the cooling working medium through a metal tube. The vapor condenses inside the metal tube, and the outside of the tube is cooled by air or liquid.

[0005] In the process of implementing the present invention, the inventor found that there are at least the following problems in the prior art: on the one hand, the vapor is cooled by contacting the inner wall of the metal tube. Since the area of the inner wall of the metal tube is limited, the condensation effect of the vapor is also limited; on the other hand, after the vapor condenses, a layer of condensate film will form on the inner wall of the metal tube, and the condensate film hinders the subsequent contact and condensation of the vapor with the cold wall surface, and also affects the vapor condensation effect. Summary of the Invention

[0006] In view of this, the present application proposes a condensation component and a condensation device that can improve the vapor condensation effect.

[0007] To achieve the above object, the present application provides a condensation component, including:

[0008] A condensation tube, which is respectively provided with a coolant inlet and a coolant outlet;

[0009] A condensation housing, the condensation tube passes through the condensation housing and forms a condensation cavity between the outer wall of the condensation housing and the tube wall of the condensation tube. The condensation housing is provided with a vapor inlet and a condensate liquid outlet;

[0010] Fins, which are arranged on the outer side of the tube wall of the condensation tube and are located in the condensation cavity.

[0011] In one embodiment, the fins are strip-shaped heat-conducting metal sheets and are coiled around the outer side of the tube wall of the condenser.

[0012] In one embodiment, the fin is a spiral fin arranged around the condenser tube, and the 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 is Figure 1 a perspective structural schematic diagram of the condenser in

[0023] Figure 3 is Figure 1 a three - dimensional structural schematic diagram of the condenser tubes and fins in

[0024] Figure 4 is Figure 1 a sectional structural schematic diagram of the condenser in

[0025] The reference numerals of each component in the figure are as follows:

[0026] Condenser 100;

[0027] Condenser tubes 110 (wherein, coolant inlet 111, coolant outlet 112);

[0028] Condensing housing 120 (wherein, vapor inlet 121, condensed liquid outlet 122, condensation chamber 123);

[0029] Fins 130. Specific embodiments

[0030] Before describing the embodiments in detail, it should be understood that the present application is not limited to the detailed structures or element arrangements described in the following text or drawings of the present application. The present application can be implemented in other ways. Moreover, it should be understood that the terms and phrases used herein are only for descriptive purposes and should not be construed restrictively. The terms "including", "comprising", "having" and similar phrases used herein are intended to include the matters listed thereafter, their equivalents and other additional matters. In particular, when describing "a certain element", the present application does not limit the number of such elements to one, and multiple elements can also be included.

[0031] Please refer to Figure 1 and Figure 2 , the structure of the condenser 100 according to an embodiment of the present application is as shown in the figure, including condenser tubes 110, condensing housing 120 and fins 130. Among them, vapor is introduced into the condensing housing 120; the condenser tubes 110 pass through the condensing housing 120, and the cooling medium flows through the condensing housing 120 through the condenser tubes 110 to cool down the vapor entering the condensing housing 120; the fins 130 are arranged outside the condenser tubes 100 and are placed in the condensing housing 120.

[0032] Specifically, the condenser tube 110 is respectively provided with a coolant inlet 111 and a coolant outlet 112. The cooling working 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 tube 110 is a straight heat-conducting metal tube with its axis arranged vertically. The coolant inlet 111 and the coolant outlet 112 are respectively arranged at the upper end and the lower end. That is, the cooling working medium enters from the coolant inlet 111 at the upper end, passes through the condensation housing 120 in the vertical direction, and then flows out from the coolant outlet 112 at the lower end. In other embodiments, the setting direction, shape, etc. of the condenser tube 110 can be adjusted according to the application scenario. For example, the condenser tube 110 is a straight heat-conducting metal tube with its axis inclined to the vertical direction. Another example is that the condenser tube 110 can also be a heat-conducting metal bent tube.

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

[0034] Please refer to Figure 3 , the fins 130 are arranged on the outer side of the tube wall of the condenser tube 110 and are located in the condensation chamber 123. The fins 130 are strip-shaped heat-conducting metal sheets, spirally wound around the outer side of the tube wall of the condenser 110, and are used to contact the vapor entering the condensation chamber 123. The spiral fins 130 can be used as an extended area of the condenser tube 110, increasing the contact area with the vapor, accelerating condensation, and improving the condensation effect. In the illustrated embodiment, the fins 130 are cylindrical spiral fins arranged around the axis of the condenser tube 110, that is, the contact surface between the fins 130 and the condenser tube 110 is a cylindrical spiral surface of the axis of the condenser tube 110. The starting position of the fins 130 is opposite to the vapor inlet 121 (see Figure 2 ), so that the vapor entering the condensation chamber 123 from the vapor inlet 121 contacts the upper end of the fins 130 and the condenser tube 110.

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

[0036] During the condensation process using the condenser 100, swirling phenomena will occur in the saturated vapor or superheated vapor flowing through the fins 130 and the gradually condensing liquid. Under the action of centrifugal force, the liquid condensed on the fins 130, due to its relatively large density, also receives a relatively large centrifugal force. The condensed liquid is thrown to the inner wall of the condensation housing 120 under the action of centrifugal force and flows down along the inner wall of the condensation housing 120 and flows out from the condensed liquid outlet 122.

[0037] The vapor condensed on the fins 130, due to its relatively small density, also receives a relatively small centrifugal force. The vapor will mainly concentrate in the center of the condensation chamber 123 and continue to contact the fins 130 and the condensation tubes 110. On the fins 130, the vapor can achieve condensation and gas-liquid separation at the same time, avoiding the formation of a liquid film on the cold wall surfaces such as the rotating fins 130 and the condensation tubes 110, which hinders the heat transfer between the vapor and the cold wall surfaces, and thus improving the condensation efficiency.

[0038] According to the above working principle, there is a gap d (see Figure 4 ) between the outer edge of the fin 130 and the inner wall of the condensation housing 120 for the condensed liquid after vapor cooling to flow down along the inner wall of the condensation housing 120 from the gap d. Since the function of the fin 130 is to increase the contact area between the vapor in the condensation chamber 123 and the cold wall surface, therefore, the lead h (see Figure 4 ) of the fin 130 should be taken as small as possible, and the width w (see Figure 4 ) of the fin 130 should be taken as large as possible. Considering that if the width w of the fin 130 is too large, the temperature of the edge part far from the condensation tube 110 may be much higher than the central part close to the condensation tube 110, so the width w of the fin 130 should not be too large. The dimensions of the fin 130 can be taken as follows: w > h > d.

[0039] In the above illustrated embodiment, the fin 130 in the form of a cylindrical helix is taken as an example for illustration. It should be noted that in other embodiments, the fin 130 can also be in the form of a conical spiral fin, that is, the width of the fin 130 decreases from the vicinity of the vapor inlet 121 (i.e., the coolant inlet 111) to the condensed liquid outlet 122 (i.e., the coolant outlet 112).

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

[0041] In the condensation component and the condensation device of the present application, fins are provided outside the condensation tube. The fins serve as an extended area of the outer wall surface of the condensation tube, increasing the contact area between the vapor and the cold wall surface. In addition, the shape of the fins outside the condensation tube is set to be spiral. After the vapor and the liquid droplets formed by vapor condensation flow through the spiral fins, a swirling flow is generated in the gas-liquid two-phase. Under the action of centrifugal force, the liquid droplets condensed on the fins will break away from the fin surface, realizing drainage while condensing and improving the condensation efficiency. Since the condensed liquid droplets are discharged in time during the vapor condensation process, the dryness of the vapor on the condensation wall surface can be ensured, without affecting the subsequent vapor condensation effect.

[0042] The concepts described herein can 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 the present application is defined by the appended claims, rather than by the previous descriptions. Any changes within the literal meaning and equivalent scope of the claims shall fall within the scope of these claims.

Claims

1. A condensation assembly, characterized in that, Comprising: A condenser tube (110) having a coolant inlet (111) and a coolant outlet (112) respectively. A condensation housing (120) through which the condenser tube (110) passes and a condensation chamber (123) is formed between the outer wall of the condensation housing (120) and the tube wall of the condenser tube. The condensation housing (120) is provided with a vapor inlet (121) and a condensed liquid outlet (122). Fins (130) provided on the outer side of the tube wall of the condenser tube (110) and located within the condensation chamber (123).

2. The condensation assembly according to claim 1, characterized in that: The fin (130) is a strip-shaped heat-conducting metal sheet and is wound around the outer side of the tube wall of the condenser (110).

3. The condensation assembly according to claim 2, characterized in that: The fin (130) is a spiral sheet arranged around the condenser tube (110), and the starting position of the fin (130) is opposite to the vapor inlet (121).

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

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

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

7. The condensation assembly according to claim 3, characterized in that: The fin (130) is a conical spiral sheet arranged around the axis of the condenser tube (110), and the width of the fin (130) decreases from the position near the vapor inlet (121) to the condensed liquid outlet (122).

8. The condensation assembly according to any one of claims 1 to 7, characterized in that: The condenser tube (110) is a straight heat-conducting metal tube with its axis arranged vertically, and the coolant inlet (111) and the coolant outlet (112) are respectively arranged at the upper end and the lower end.

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

10. A condensation device, characterized in that: Including the condensation assembly (100) according to any one of claims 1 to 9.

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