Condenser and cooling system

Abstract

This application discloses a condenser and a cooling system in the technical field of refrigeration equipment. The condenser includes a housing having a first inlet and a second inlet at the top and an outlet at the bottom, a baffle provided on the inner wall of the housing which divides the inner chamber of the housing into a main cooling region and a secondary cooling region, the secondary cooling region being located close to the top of the outlet, a flow gap connecting the main cooling region and the secondary cooling region being provided between the baffle and the housing, and an air extraction port provided in the housing portion corresponding to the secondary cooling region, a first heat exchange unit provided in the main cooling region, and a second heat exchange unit provided in the secondary cooling region. The condenser according to this application has two inlets, and two steam sources can enter the same condenser and condense simultaneously, thereby simplifying the structure, reducing the space occupied by the equipment, and achieving efficient heat exchange by installing a baffle to recool each region separately.

Description

Technical Field

[0001] This application relates to the technical field of refrigeration equipment, specifically to condensers and cooling systems.

[0002] This application claims the priority of a Chinese patent application with the application number 202321499990.9 and the invention title "Condenser and Cooling System", which was filed with the Chinese Patent Office on June 12, 2023, and all of its contents are incorporated herein by reference.

Background Art

[0003] In industrial production and daily life, condensers play an important role, mainly responsible for heat transfer and gas condensation, and the quality of their operating performance directly affects the economy and stability of the entire system.

[0004] Conventional condensers have one inlet, through which the refrigerant performs heat transfer and gas condensation.

[0005] Such a design has obvious deficiencies in actual applications. In a marine propulsion device, usually, the exhaust gas after the main turbine works is discharged into the main condenser, and the exhaust gas after the auxiliary turbine works is discharged into the auxiliary condenser. In the condenser, the steam is condensed into water by circulating cooling water. In such a method, due to the provision of a main condenser and an auxiliary condenser, the structure is not compact, occupies a lot of space, and the complexity of the marine device increases, making the maintenance of the device more inconvenient.

Summary of the Invention

Problems to be Solved by the Invention

[0006] In view of this, this application provides a condenser and a cooling system that solve the problems that the structure of the condenser is not compact and the occupied space is large.

Means for Solving the Problems

[0007] In a first embodiment, the present invention provides a condenser comprising: a housing having a first inlet and a second inlet at the top and an outlet at the bottom; a baffle provided on the inner wall of the housing, the baffle dividing the inner chamber of the housing into a main cooling region and a secondary cooling region, the secondary cooling region being located close to the top of the outlet, a flow gap connecting the main cooling region and the secondary cooling region being provided between the baffle and the housing, and an air extraction port being provided in the housing portion corresponding to the secondary cooling region; a first heat exchange unit provided in the main cooling region; and a second heat exchange unit provided in the secondary cooling region.

[0008] Beneficial Effects: By providing a first and second inlet in the condenser housing, it can be used to connect to two separate steam sources, allowing both steam sources to enter the same condenser and condense simultaneously, thereby simplifying the structure and reducing the space occupied by the device. The housing is divided into a main cooling area and a secondary cooling area by baffles, so the first and second steam sources can share the main cooling area. The first heat exchange unit in the main cooling area can simultaneously exchange heat with the first and second steam sources, condensing the hot steam into water and discharging it from the outlet. The secondary cooling area is located close to the lower outlet, and a flow gap is provided between the main and secondary cooling areas. As a result, air that has not completely condensed from the gas flowing from the main cooling area to the outlet can enter the secondary cooling area for secondary cooling, and some of the gas is condensed into water and discharged from the outlet. By providing baffles, the inner chamber of the housing is partitioned and optimized, so that the steam sources can perform sufficient heat exchange cooling and cooling efficiency is ensured. Furthermore, since an extraction port is provided in the sub-cooling region, any remaining gas that cannot be condensed is exhausted through the extraction port, thereby ensuring a vacuum level in the inner chamber of the housing and guaranteeing the operational performance of the condenser, including stability and reliability.

[0009] In one selectable embodiment, both the first and second entrances are located above the central axis of the housing, and the axis of the first entrance and the axis of the second entrance form an angle, with the angle being in the range of 30° to 60°.

[0010] Beneficial effect: By aligning the axis of the first entrance with the axis of the second entrance at an angle of 30° to 60°, it is possible to ensure the strength of the housing section between the first and second entrances, as well as the efficiency of heat exchange.

[0011] In one selectable embodiment, the diameters of the first inlet and the second inlet are not equal, and the axis of either the first or second inlet passes through the subcooling region.

[0012] Beneficial effect: Any gas that has undergone initial condensation in the main cooling region and is not completely cooled can enter the secondary cooling region for secondary cooling, completely condensing the gas and further improving the heat exchange efficiency of the condenser. Furthermore, to further improve the heat exchange efficiency of the secondary cooling region, the heat exchange efficiency of secondary cooling of the gas by the secondary cooling region can be improved by increasing the temperature difference between the second heat exchange unit and the first heat exchange unit within the secondary cooling region.

[0013] In one selectable embodiment, the diameter of the first inlet is smaller than the diameter of the second inlet, the axis of the second inlet intersects the central axis of the housing, and the vent is located on the side of the axis of the second inlet away from the outlet.

[0014] Beneficial effect: Because the extraction port is located away from the outlet on the axis of the second inlet, after the gas enters the subcooling region through the flow gap, it moves upward and undergoes sufficient heat exchange and condensation with the second heat exchange unit, after which any uncondensed gas is extracted. By positioning the extraction port away from the outlet, the gas can undergo sufficient heat exchange in the subcooling region, which is advantageous for improving condensation efficiency.

[0015] In one selectable embodiment, the length of the baffle is greater than its width, one long side of the baffle is aligned along the axial direction of the housing, both ends of the baffle are sealed and connected to both ends of the housing, and a gap remains between the other long side of the baffle and the housing, forming a flow gap.

[0016] Beneficial effect: By sealing and connecting both ends of the baffle and both ends of the housing, the gas can enter the secondary cooling region only through the flow gap, thereby ensuring a heat exchange temperature difference between the primary and secondary cooling regions. In this way, the gas that has not been completely condensed can enter the secondary cooling region and undergo sufficient secondary cooling, allowing it to be completely condensed.

[0017] In one selectable embodiment, the baffle is a folded structure, and the baffle includes a barrier, the barrier and the inner wall of the main cooling area of ​​the housing are connected at an obtuse angle.

[0018] Beneficial effect: With this configuration, no blind spots occur at the connection point between the shut-off section and the inner wall of the housing, ensuring that the gas flows smoothly into the main cooling area and that the gas can come into sufficient contact with the first heat exchange unit and condense.

[0019] In one selectable embodiment, the baffle further includes a flow guide section, one side of which is connected to a blockage section, and the other side of which extends to an outlet, not beyond the axis of the outlet.

[0020] Beneficial effect: With this configuration, after the gas condenses into water, it flows to the outlet along a specific path on the guide plate, thereby shortening the path of the condensed water, increasing the flow velocity of the condensed water, distributing heat more uniformly, and improving condensation efficiency.

[0021] In one selectable embodiment, both the first and second heat exchange units include a plurality of heat exchange tubes, with tube sheets provided at both ends within the housing, and the heat exchange tubes are connected to the two tube sheets.

[0022] Beneficial effects: By providing tube sheets at both ends inside the housing, it is used for installing the heat exchange tubes. The tube sheets play a role in supporting and fixing the heat exchange tubes, ensuring the arrangement reliability and performance of the heat exchange tubes.

[0023] In one selectable embodiment, a plurality of reinforcing rib plates are connected between the tube sheets.

[0024] Beneficial effects: By providing the reinforcing rib plates, it plays a role in reinforcing the connection strength between the two tube sheets, and can improve the operation stability and reliability of the condenser.

[0025] In one selectable embodiment, the heat exchange tubes are arranged parallel to the axis of the housing, and adjacent heat exchange tubes are arranged staggeredly in a rhombus shape.

[0026] Beneficial effects: Since the heat exchange tubes are arranged in a rhombus shape, the gap between two adjacent heat exchange tubes above and below is directed towards the second inlet. Because the caliber of the second inlet is large, the flow rate of the steam source introduced from the second inlet is large. The second inlet is provided inclined with respect to the vertical direction. Therefore, it is beneficial to the flow of the steam source introduced from the second inlet. Thereby, the steam sources of the two passages can condense within the same main cooling region.

[0027] In the second aspect, the present application includes a first steam source, a second steam source, and a condenser according to any one of the above technical solution means. The first steam source is connected to a first inlet, and the second steam source is connected to a second inlet, a cooling system.

[0028] Since the cooling system includes a condenser, it has the same effects as the condenser, and the description is omitted here.

[0029] To more clearly explain the specific embodiments of this application or the technical solutions in the prior art, the drawings used for the description of the specific embodiments or the prior art will be briefly described below. Clearly, the drawings described below are some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without creative efforts.

Brief Description of the Drawings

[0030] [Figure 1] It is a front view (omitting the baffle) of the condenser according to the embodiment of this application. [Figure 2] It is a side cross-sectional view of the condenser shown in FIG. 1. [Figure 3] It is a side cross-sectional view of the housing of the condenser in FIG. 1. [Figure 4] It is a schematic diagram of the structure of the heat exchange tubes arranged in one array form. [Figure 5] It is a schematic diagram of the structure of the heat exchange tubes arranged in another array form.

Modes for Carrying Out the Invention

[0031] To make the objectives, technical solutions and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below by referring to the drawings of the embodiments of this application. Clearly, the described embodiments are some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments that those skilled in the art can obtain without creative efforts belong to the protection scope of this application.

[0032] Hereinafter, referring to FIGS. 1 to 5, the embodiments of this application will be described.

[0033] According to an embodiment of the present invention, a condenser is provided comprising: a housing 1 having a first inlet 101 and a second inlet 102 at the top and an outlet 103 at the bottom; a baffle 2 provided on the inner wall of the housing 1, the baffle 2 partitioning the inner chamber of the housing 1 into a main cooling region 105 and a sub-cooling region 106, the sub-cooling region 106 being located close to and above the outlet 103, a flow gap 107 connecting the main cooling region 105 and the sub-cooling region 106 being provided between the baffle 2 and the housing 1, and an air extraction port 104 being provided in the portion of the housing 1 corresponding to the sub-cooling region 106; a first heat exchange unit 3 provided in the main cooling region 105; and a second heat exchange unit 4 provided in the sub-cooling region 106.

[0034] By providing a first inlet 101 and a second inlet 102 in the condenser housing 1, it can be used to connect to two steam sources, allowing both steam sources to enter the same condenser and condense simultaneously, thereby simplifying the structure and reducing the space occupied by the equipment. In practical applications, for example, in a ship cooling system, the exhaust from the main turbine and the exhaust from the auxiliary turbine can enter the same condenser and condense, resulting in a compact structure, which simplifies the system structure and improves space utilization. The inside of the housing 1 is divided into a main cooling area 105 and a secondary cooling area 106 by baffles 2, so the first steam source and the second steam source can share the main cooling area 105, and the first heat exchange unit 3 in the main cooling area 105 can exchange heat with the first and second steam sources simultaneously, condensing the hot steam into water, which can then be discharged from the outlet 103. The secondary cooling region 106 is provided close to the lower outlet 103, and a flow gap 107 is provided between the main cooling region 105 and the secondary cooling region 106. As a result, air that has not completely condensed from the gas flowing from the main cooling region 105 to the outlet 103 can enter the secondary cooling region 106 and undergo secondary cooling, while some of the gas condenses into water and is discharged from the outlet 103. By providing the baffle 2, the inner chamber of the housing 1 is partitioned and optimized, so that the steam source can perform sufficient heat exchange cooling and cooling efficiency is ensured. In addition, since an extraction port 104 is provided in the secondary cooling region 106, the remaining gas that cannot be condensed is exhausted from the extraction port, thereby ensuring the vacuum level of the inner chamber of the housing 1 and ensuring the operational performance such as the stability and reliability of the condenser. The condenser according to the present invention is advantageous in saving space occupied by cooling system equipment in both industrial production and daily life, and can achieve efficient and reliable condensation and heat transfer.

[0035] Furthermore, since a first inlet 101 and a second inlet 102 are provided, if one inlet becomes clogged or malfunctions, the other inlet can still operate normally, significantly improving the stability and reliability of the system.

[0036] In one embodiment, the baffle 2 is made of a 5 mm thick low-alloy steel plate and its surface is treated with a protective coating.

[0037] In one embodiment, both the first entrance 101 and the second entrance 102 are located above the central axis of the housing, and the axis of the first entrance 101 and the axis of the second entrance 102 form an angle, with the angle being in the range of 30° to 60°.

[0038] Specifically, the central axis of housing 1 is the axis along the longitudinal direction of housing 1. Both the first inlet 101 and the second inlet 102 are located above the central axis of housing 1. In this way, all steam sources entering from the first inlet 101 and the second inlet 102 are ensured to flow from top to bottom, ensuring that the gas exchanges heat sufficiently within the main cooling region 105 and the first heat exchange unit 3, which is advantageous for improving condensation efficiency. If the angle between the first inlet 101 and the second inlet 102 is too small, the strength of the portion of housing 1 between the first inlet 101 and the second inlet 102 is low, resulting in poor condenser stability. If the angle between the first inlet 101 and the second inlet 102 is too large, the height of the first inlet 101 or the second inlet 102 is sacrificed, thereby affecting the heat exchange time of the gas entering from the inlet in the main cooling region 105 and thus affecting the heat exchange efficiency. Therefore, by having the first entrance 101 and the second entrance 102 form an angle of 30° to 60°, it is possible not only to ensure the strength of the housing 1 portion between the first entrance 101 and the second entrance 102, but also to ensure heat exchange efficiency.

[0039] As shown in Figure 2, the axis of the first inlet 101 is L1, the axis of the second inlet 102 is L2, the angle between them is α, and 30° ≤ α ≤ 60°. Specifically, in one embodiment, as shown in Figure 2, the first inlet 101 is located at the top of the housing 1, and the outlet 103 is located at the bottom of the housing 1, and the two are positioned opposite each other relative to the housing 1. Selectively, the axes of the first inlet 101 and the outlet 103 are collinear and pass through the central axis of the housing 1. With such a configuration, the steam source introduced from the first inlet 101 can perform maximum heat exchange and cooling with the first heat exchange unit 3 as it moves from top to bottom in the main cooling region 105. Viewed from the orientation shown in Figure 2, the second entrance 102 is located in the upper right of the housing 1, and the angle α between the axis L2 of the second entrance 102 and the axis L1 of the first entrance 101 is 45°.

[0040] In one embodiment, the diameter of the first inlet 101 and the diameter of the second inlet 102 are not equal, and at least one axis of the first inlet 101 and the second inlet 102 passes through the subcooling region 106.

[0041] The diameters of the first inlet 101 and the second inlet 102 are not equal, and therefore, different inlets can be connected depending on the exhaust volume of each device in the cooling system. That is, devices with a large exhaust volume are connected to inlets with a larger diameter, and devices with a small exhaust volume are connected to inlets with a smaller diameter, thereby rationally optimizing the steam source input and improving the heat exchange efficiency of the condenser.

[0042] Since the axis of at least one of the first inlet 101 and the second inlet 102 passes through the sub-cooling region 106, that is, since at least one of the first inlet 101 and the second inlet 102 and the sub-cooling region 106 are arranged opposite to the housing 1, any gas that has not been completely cooled in the gas that has undergone first condensation by the main cooling region 105 can enter the sub-cooling region 106 and undergo secondary cooling, thereby completely condensing the gas and further improving the heat exchange efficiency of the condenser. Furthermore, in order to further improve the heat exchange efficiency of the sub-cooling region 106, the heat exchange efficiency of secondary cooling of the gas by the sub-cooling region 106 can be improved by increasing the temperature difference between the second heat exchange unit 4 and the first heat exchange unit 3 within the sub-cooling region 106.

[0043] In one embodiment, the diameter of the second inlet 102 is larger than the diameter of the first inlet 101, the axis of the second inlet 102 intersects with the central axis of the housing 1, and the extraction port 104 is located on the side of the axis of the second inlet 102 away from the outlet 103.

[0044] Specifically, referring to Figure 2, in this embodiment, the diameter of the first inlet 101 is smaller than the diameter of the second inlet 102. For practical applications, taking a turbine system as an example, the first inlet 101, due to its smaller diameter, can be connected to a secondary turbine and used for exhaust, while the second inlet 102, due to its larger diameter, can be connected to a main turbine and used for exhaust.

[0045] In one embodiment, as shown in Figure 2 or Figure 3, the extraction port 104 is located away from the outlet 103 on the axis of the second inlet 102, so that the gas can move upward after entering the sub-cooling region 106 from the flow gap 107, and after sufficient heat exchange condensation with the second heat exchange unit 4, the uncondensed gas is extracted. The placement of the extraction port 104 away from the outlet 103 is advantageous in that the gas can perform sufficient heat exchange in the sub-cooling region 106, thereby improving condensation efficiency.

[0046] In one embodiment, the length of the baffle 2 is greater than its width, one long side of the baffle 2 is aligned along the axial direction of the housing 1, both ends of the baffle 2 are sealed and connected to both ends of the housing 1, and a gap remains between the other long side of the baffle 2 and the housing 1, forming a flow gap 107.

[0047] By sealing and connecting both ends of the baffle 2 and both ends of the housing 1, the gas can enter the secondary cooling region 106 only through the flow gap 107, thereby ensuring a temperature difference for heat exchange between the main cooling region 105 and the secondary cooling region 106. In this way, the gas that has not been completely condensed can enter the secondary cooling region 106 and undergo secondary cooling, allowing the gas to be sufficiently and completely condensed.

[0048] In one embodiment, the baffle 2 is a folded structure and includes a blocking portion 201, and as shown in β in Figure 3, the blocking portion 201 and the inner wall of the main cooling region 105 of the housing 1 are connected at an obtuse angle.

[0049] With this configuration, no blind spots occur at the connection point between the shut-off section 201 and the inner wall of the housing 1, ensuring that the gas flows smoothly into the main cooling area 105, and that the gas can come into sufficient contact with the first heat exchange unit 3 and condense.

[0050] In one embodiment, the baffle 2 further includes a flow guide section 202, one side of which is connected to a blocking section 201, and the other side of which extends to an outlet 103, but not beyond the axis of the outlet 103.

[0051] With this configuration, after the gas condenses into water, it flows to the outlet 103 along a specific path on the guide plate, thereby shortening the path of the condensed water, increasing the flow velocity of the condensed water, distributing heat uniformly, and improving condensation efficiency.

[0052] In one embodiment, referring to Figure 2 or Figure 3, the other side of the guide plate is a free end, and the free end is aligned in the longitudinal direction with the edge of the outlet 103 that is closer to the sub-cooling region 106.

[0053] In one embodiment, both the first heat exchange unit 3 and the second heat exchange unit 4 include a plurality of heat exchange tubes 301, with tube sheets 108 provided at both ends within the housing 1, and the heat exchange tubes 301 are connected to two tube sheets 108.

[0054] Housing 1 is the main structure of the condenser and is a thick-walled cylindrical structure. Specifically, Housing 1 is a hollow housing made of low-alloy steel Q235, and an active protective layer is applied to the inner surface of Housing 1 by a sandblasting process, which is advantageous in preventing corrosion. The axis of Housing 1 is installed horizontally, i.e., the condenser is horizontal. In one embodiment, referring to Figure 1, in the axial direction of Housing 1, the first inlet 101 and outlet 103 are both located in the center of Housing 1.

[0055] By providing tube sheets 108 at both ends of the housing 1, these tube sheets 108 are used to mount the heat exchange tubes 301, and the tube sheets 108 play a role in supporting and fixing the heat exchange tubes 301. In one embodiment, the heat exchange tubes 301 are bare tubes made of brass, and the heat exchange tubes 301 are fixed to the tube sheets 108 by welding. Both ends of the heat exchange tubes 301 extend from the tube sheets 108, with an extension length of 20 mm to 30 mm. These measures can ensure the reliability and performance of the arrangement of the heat exchange tubes 301.

[0056] In one embodiment, the tube sheet 108 is made of low-alloy steel 16MnDR, has a thickness of 80 mm, and its adhesion resistance is reduced by polishing the surface. The tube sheet 108 has a plurality of mounting holes, the distribution of which matches the distribution of the heat exchange tubes 301, and the heat exchange tubes 301 are welded to the tube sheet 108 by passing through the mounting holes.

[0057] Specifically, because the volumes of the main cooling region 105 and the secondary cooling region 106 are different, the number of heat exchange tubes 301 in the main cooling region 105 and the flow rate of the fluid in the heat exchange tubes 301 are different, thereby achieving recooling in each region.

[0058] Specifically, by providing end plates 5 at both ends of the housing 1, the inner chamber of the housing 1 is made into a closed cavity. Casings 6 are provided on the front end end plate 5 and the rear end end plate 5 of the housing 1, and the casings 6 are in communication with the heat exchange pipe 301. Cooling water flows into the heat exchange pipe 301 through the casing 6 at the front end and flows out of the housing 1 through the casing 6 at the rear end.

[0059] In one embodiment, multiple reinforcing rib plates 109 are connected between the tube sheets 108. By providing the reinforcing rib plates 109, the connection strength of the two tube sheets 108 is reinforced, thereby improving the stability and reliability of the condenser's operation.

[0060] In one embodiment, the heat exchange tubes 301 are arranged parallel to the axis of the housing 1, and adjacent heat exchange tubes 301 are arranged in a staggered pattern to form a rhombic shape.

[0061] Specifically, in one embodiment, as shown in Figure 4, the axes of four adjacent heat exchange tubes 301 are located at the four corners of the rhombus, and the smaller corners of the rhombus are 60°. There are at least two arrangement configurations of the heat exchange tubes 301 in the rhombus: one is that the diagonals of the rhombus are installed vertically, as shown in Figure 4, and the other is that the diagonals of the rhombus are installed at an inclination so as to form an angle with the vertical direction.

[0062] In the embodiment shown in Figure 2, the heat exchange tubes 301 are arranged in a rhombus shape, so that the gap between two vertically adjacent heat exchange tubes 301 faces the second inlet 102. Because the diameter of the second inlet 102 is large, the flow rate of the steam source introduced from the second inlet 102 is large. The second inlet 102 is also inclined with respect to the vertical, which is advantageous for the flow of the steam source introduced from the second inlet 102, and as a result, the two steam sources can condense within the same main cooling region 105.

[0063] According to embodiments of the present application, the present application further provides a cooling system comprising a first steam source, a second steam source, and a condenser according to any one of the above technical solutions, wherein the first steam source is connected to a first inlet 101 and the second steam source is connected to a second inlet 102.

[0064] Since the cooling system includes a condenser, it has the same effect as a condenser, and therefore its explanation will be omitted here.

[0065] Specifically, taking a turbine system as an example, the turbine system exhausts using a main turbine and a secondary turbine. The exhaust volume of the main turbine is clearly larger than that of the secondary turbine. Therefore, referring to the difference in diameter between the first inlet 101 and the second inlet 102, the exhaust of the main turbine is connected to the second inlet 102, and the exhaust of the secondary turbine is connected to the first inlet 101.

[0066] Operation process The exhaust gases from the main turbine and auxiliary turbine enter the housing 1 through the second inlet 102 and the first inlet 101, respectively. After entering the housing 1, the exhaust gases first come into contact with the heat exchange tubes 301 in the main cooling region 105, where they cool and condense on the outer surface of the heat exchange tubes 301. Baffles 2 are provided to allow for recooling in each region, so the heat exchange tubes 301 inside the housing 1 are divided into a main cooling region 105 and an auxiliary cooling region 106. Most of the exhaust gases from the main turbine and auxiliary turbine are cooled in the common main cooling region 105, and the steam condenses on the outer surface of the heat exchange tubes 301 into liquid before being discharged from the outlet 103. A small portion of the gas that has not been sufficiently condensed enters the auxiliary cooling region 106 for recooling, where it condenses into water, flows downward along the baffles 2, and is discharged from the outlet 103.

[0067] Cooling water in the heat exchange tube 301 enters the main cooling region 105 and the secondary cooling region 106 within the housing 1 from the casing of the front end plate 5, absorbing the heat released by the two exhausts. After the cooling water flows through the heat exchange tube 301, it is discharged from the housing 1 through the casing of the rear end plate 5, and the cooling water is returned to the main turbine and secondary turbine, respectively, via a flow divider.

[0068] Steam and residual gas are extracted from the extraction port 104 provided in the sub-cooling region 106, maintaining the vacuum level.

[0069] The baffle 2 and exhaust port 104 effectively improve heat exchange efficiency, save space, and enable condensation of the two exhausts. The activated protective layer of housing 1 effectively prevents corrosion and extends the service life of the heat exchanger.

[0070] The condenser according to the embodiment of this application has a very wide range of applications and is particularly suitable for situations requiring efficient heat exchange and high-flow processing, such as marine cooling systems, industrial production equipment, and power facilities. It has advantages such as a compact structure, ease of installation, high stability, and efficient heat exchange, and therefore has promising future market applications.

[0071] While embodiments of the present application have been described with reference to the drawings, a person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present application, and such changes and modifications all fall within the scope defined in the attached utility model claims. [Explanation of symbols]

[0072] 1 Housing 101 1st entrance 102 2nd entrance 103 Exit 104 Air vent 105 Main cooling area 106 Sub-cooling area 107 Distribution niches 108 Tube plate 109 Reinforcement rib plate 2 baffles 201 Blocking section 202 Direction section 3. First heat exchange unit 301 Heat exchange tube 4. Second heat exchange unit 5. End plate 6. Casing

Claims

1. It is a condenser, A housing (1) is provided with a first entrance (101) and a second entrance (102) at the top and an exit (103) at the bottom, A baffle (2) is provided on the inner wall of the housing (1), wherein the baffle (2) divides the inner chamber of the housing (1) into a main cooling region (105) and a secondary cooling region (106), the secondary cooling region (106) is provided close to above the outlet (103), a flow gap (107) is provided between the baffle (2) and the housing (1) that connects the main cooling region (105) and the secondary cooling region (106), and an air extraction port (104) is provided in the portion of the housing (1) corresponding to the secondary cooling region (106), The first heat exchange unit (3) is provided in the main cooling region (105), A condenser characterized by including a second heat exchange unit (4) provided in the sub-cooling region (106).

2. The condenser according to claim 1, characterized in that the diameter of the first inlet (101) and the diameter of the second inlet (102) are not equal, and the axis of either the first inlet (101) or the second inlet (102) passes through the sub-cooling region (106).

3. The condenser according to claim 2, characterized in that both the first inlet (101) and the second inlet (102) are located above the central axis of the housing (1), and the axis of the first inlet (101) and the axis of the second inlet (102) form an angle, the angle being in the range of 30° to 60°.

4. The condenser according to any one of claims 1 to 3, characterized in that the diameter of the first inlet (101) is smaller than the diameter of the second inlet (102), the axis of the second inlet (102) intersects with the central axis of the housing (1), and the extraction port (104) is located on the side of the axis of the second inlet (102) away from the outlet (103).

5. The condenser according to any one of claims 1 to 3, characterized in that the baffle (2) has a folded structure, the baffle (2) includes a blocking portion (201), and the blocking portion (201) and the inner wall of the main cooling region (105) of the housing (1) are connected at an obtuse angle.

6. The condenser according to claim 5, wherein the baffle (2) further includes a flow guide portion (202), one side of the flow guide portion (202) is connected to the blocking portion (201), and the other side of the flow guide portion (202) extends to the outlet (103) and does not cross the axis of the outlet (103).

7. The condenser according to any one of claims 1 to 3, characterized in that the first heat exchange unit (3) and the second heat exchange unit (4) each include a plurality of heat exchange tubes (301), tube sheets (108) are provided at both ends within the housing (1), and the heat exchange tubes (301) are connected to two of the tube sheets (108).

8. The condenser according to claim 7, characterized in that a plurality of reinforcing rib plates (109) are connected between the tube sheets (108).

9. The condenser according to claim 7, characterized in that the heat exchange tubes (301) are arranged parallel to the axis of the housing (1), and adjacent heat exchange tubes (301) are arranged in a staggered pattern to form a rhombic shape.

10. A cooling system, First steam source and Second steam source and A cooling system comprising a condenser according to any one of claims 1 to 9, wherein the first steam source is connected to the first inlet (101) and the second steam source is connected to the second inlet (102).

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