Hybrid connection and condensing system

Abstract

The application relates to the technical field of heat exchange equipment, and provides a mixed connecting piece and a condensing system. The mixed connecting piece comprises a mixing part and a flow guiding part, a flow channel is formed in the mixing part, the flow guiding part is arranged in the flow channel, and the flow guiding part divides the flow channel into a mixed flow channel and a circulating flow channel; the inlet of the mixed flow channel is used for being communicated with the exhaust port of a steam turbine, and the outlet of the mixed flow channel is used for being communicated with the inlet of a condenser; the inlet of the circulating flow channel is communicated with the outlet of the mixed flow channel, and the outlet of the circulating flow channel is communicated with the inlet of the mixed flow channel. According to the application, the outlet of the mixed flow channel is respectively communicated with the condenser and the inlet of the circulating flow channel, the outlet of the circulating flow channel is communicated with the inlet of the mixed flow channel, the steam is made to produce mixed flow in the mixed flow channel by adopting a steam shunting circulation method, the airflow at the outlet of the mixed flow channel is changed, the steam can be sprayed in all directions, the contact area with heat exchange tube bundles in the condenser is increased, and the heat exchange efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heat exchange equipment, and particularly relates to a mixed connecting piece and a condensing system. BACKGROUND

[0002] The condenser is a cold source equipment in a ship power system, which converts the exhaust steam discharged by an upstream steam turbine into liquid water and then reintroduces the liquid water into a steam generator to maintain the system circulation.

[0003] In the prior art, a shell-and-tube condenser is generally used as the cold source equipment. The gas inlet of the condenser is usually arranged at the middle position of the top and is used for receiving the exhaust steam from the steam turbine. Since the condenser itself is relatively long, the steam mainly concentrates on the middle area of the heat exchange tube bundle for heat exchange after entering the condenser. This phenomenon causes the heat exchange area at both ends of the condenser to be unable to be fully utilized, the heat exchange area is seriously wasted, and the heat exchange efficiency is low. SUMMARY

[0004] The present application provides a mixed connecting piece and a condensing system to solve the problem that the steam in the condenser in the prior art cannot be exchanged with the heat exchange tube bundle at both ends, resulting in low heat exchange rate.

[0005] The present application provides a mixed connecting piece, which comprises a mixing part and a flow guiding part. A flow channel is formed in the mixing part, and the flow guiding part is arranged in the flow channel. The flow guiding part divides the flow channel into a mixed flow channel and a circulating flow channel. The inlet of the mixed flow channel is used for communicating with the exhaust port of the steam turbine, and the outlet of the mixed flow channel is used for communicating with the inlet of the condenser. The inlet of the circulating flow channel communicates with the outlet of the mixed flow channel, and the outlet of the circulating flow channel communicates with the inlet of the mixed flow channel.

[0006] According to the mixed connecting piece provided by the present application, the flow guiding parts are multiple, and the multiple flow guiding parts are arranged at intervals along the circumference of the flow channel. The flow guiding parts surround to form the mixed flow channel. The outer wall surface of the flow guiding part and the inner wall surface of the mixing part form the circulating flow channel, and / or the circulating flow channel is formed in the flow guiding part.

[0007] According to the mixed connecting piece provided by the present application, the multiple flow guiding parts are integrally formed.

[0008] According to the mixed connecting piece provided by the present application, the mixed connecting piece further comprises an outlet throat part. An outlet throat part flow channel is formed in the outlet throat part. The inlet of the outlet throat part flow channel communicates with the outlet of the mixed flow channel, and the outlet of the outlet throat part flow channel is used for communicating with the inlet of the condenser.

[0009] According to the mixing connector provided by the application, the cross-sectional area of the outlet throat flow passage gradually decreases and then gradually increases along the direction from the inlet of the outlet throat flow passage to the outlet of the outlet throat flow passage.

[0010] According to the mixing connector provided by the application, the mixing connector further comprises an inlet throat, and an inlet throat flow passage is formed in the inlet throat, the inlet of the inlet throat flow passage is used for communicating with the exhaust port of the steam turbine, and the outlet of the inlet throat flow passage communicates with the inlet of the mixing flow passage.

[0011] According to the mixing connector provided by the application, the cross-sectional area of the inlet throat flow passage gradually decreases along the direction from the inlet of the inlet throat flow passage to the outlet of the inlet throat flow passage.

[0012] According to the mixing connector provided by the application, the mixing flow passage comprises a flow guiding section and a flow stabilizing section which communicate with each other, the cross-sectional area of the flow guiding section gradually increases along the direction from the inlet of the flow guiding section to the inlet of the flow stabilizing section, and the cross-sectional area of the flow stabilizing section is the same.

[0013] According to the mixing connector provided by the application, the circulating flow passage comprises a first flow guiding section, a second flow guiding section and a straight flow section, the inlet of the first flow guiding section communicates with the outlet of the mixing flow passage, the outlet of the first flow guiding section communicates with the inlet of the straight flow section through a first transition section, the outlet of the straight flow section communicates with the inlet of the second flow guiding section through a second transition section, and the outlet of the second flow guiding section communicates with the inlet of the mixing flow passage.

[0014] The application further provides a condensing system comprising a condenser and a steam turbine, and further comprising the mixing connector according to any one of the above, the inlet of the mixing connector communicates with the exhaust port of the steam turbine, and the outlet of the mixing connector communicates with the inlet of the condenser.

[0015] The mixing connector and the condensing system provided by the application adopt the method of steam shunt circulation by communicating the outlet of the mixing flow passage with the inlet of the condenser and the inlet of the circulating flow passage respectively and communicating the outlet of the circulating flow passage with the inlet of the mixing flow passage, so that the steam generates mixed flow in the mixing flow passage, the airflow at the outlet of the mixing flow passage changes, the steam can be sprayed in various directions, the contact area with the heat exchange tube bundle in the condenser is increased, and the heat exchange efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0017] Figure 1 is a structural schematic diagram of a mixing connector provided by the present application;

[0018] Figure 2 is a structural schematic diagram of a condensing system provided by the present application;

[0019] Reference signs:

[0020] 100, mixing connector; 110, mixing part; 120, flow guiding part; 130, mixing flow passage; 140, circulating flow passage; 150, outlet throat; 151, outlet throat flow passage; 160, inlet throat; 161, inlet throat flow passage; 200, condenser; 300, steam turbine. DETAILED DESCRIPTION

[0021] In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions in the present application will be described clearly and completely below in conjunction with the drawings in the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0022] In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or detachably connected, or integrally connected; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0023] In the description of the embodiments of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the embodiments of the present application.

[0024] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly specified and limited.

[0025] Embodiments of the present application are described below in the detailed description and illustrated in the accompanying drawings by which like or similar elements, structures and / or functions have been given the same reference numerals and designation for simplicity and clarity purposes. The embodiments described below are examples for explaining the present application and are not intended to limit the present application.

[0026] The disclosure that follows provides many different embodiments, or examples, for implementing different structures of the present application. For the purpose of simplicity and clarity, the detailed description of the embodiments of the present application that follows herein describes certain specific examples. Of course, it is to be understood that the application can be practiced otherwise than is specifically described. In addition, the present application provides numerous examples of components and / or process steps, the purpose of which is to provide the reader with a thorough grounding in the broad application area of the application. The reader will further appreciate that the concepts, application and / or embodiments of the application can be implemented with both automobiles and non-automobile applications. Accordingly, specific examples of components and processes are not intended to limit the scope or permit a narrowing of the present application. In addition, various specific materials are described herein. It will be appreciated by one of ordinary skill in the art that other materials can be used without departing from the spirit of the application.

[0027] The following detailed description is presented in connection with Figures 1-2 A hybrid connection and a condensing system are described.

[0028] A hybrid connection 100 is provided in embodiments of the present application, which is used to connect a steam turbine 300 and a condenser 200, so that the exhaust steam of the steam turbine 300 is converted into liquid water by passing through the hybrid connection 100 into the condenser 200.

[0029] As shown in Figure 2 The hybrid connection 100 includes a mixing portion 110 and a flow guiding portion 120. The mixing portion 110 is formed with a flow passage, and the flow guiding portion 120 is arranged in the flow passage. The flow guiding portion 120 divides the flow passage into a mixing flow passage 130 and a circulating flow passage 140. The inlet of the mixing flow passage 130 is used to communicate with the exhaust port of the steam turbine 300, and the outlet of the mixing flow passage 130 is used to communicate with the inlet of the condenser 200, as shown in Figure 1 The inlet of the circulating flow passage 140 communicates with the outlet of the mixing flow passage 130, and the outlet of the circulating flow passage 140 communicates with the inlet of the mixing flow passage 130.

[0030] During operation, the exhaust steam discharged from the steam turbine 300 enters the mixing flow channel 130 through the exhaust port of the steam turbine 300 and the inlet of the mixing flow channel 130, and is divided into two parts, one of which directly enters the condenser 200 through the outlet of the mixing flow channel 130 to exchange heat and condense into liquid water, and the other enters the circulating flow channel 140 through the outlet of the mixing flow channel 130 and the inlet of the circulating flow channel 140, and then returns to the inlet of the mixing flow channel 130 through the outlet of the circulating flow channel 140 after flowing in the circulating flow channel 140, and the steam flow in the circulating flow channel 140 impacts the steam flow at the inlet of the mixing flow channel 130, and then enters the mixing flow channel 130 to mix; the circulation of the steam flow produces a disturbance effect, changes the flow path of the steam in the mixing flow channel 130, and thus affects the way and angle of the steam entering the condenser 200, increases the contact area with the heat exchange tube bundle in the condenser 200, and improves the heat exchange efficiency.

[0031] The mixing connector 100 provided by the embodiment of the present application can make the steam flow mixed in the mixing flow channel 130 by connecting the outlet of the mixing flow channel 130 with the condenser 200 and the inlet of the circulating flow channel 140 respectively and connecting the outlet of the circulating flow channel 140 with the inlet of the mixing flow channel 130, so that the airflow at the outlet of the mixing flow channel 130 changes, the steam can be sprayed in all directions, the contact area with the heat exchange tube bundle in the condenser 200 is increased, and the heat exchange efficiency is improved.

[0032] The structure of the flow guide part 120 in the embodiment of the present application is not specifically limited, and the formed mixing flow channel 130 and circulating flow channel 140 can only be staggered to produce a disturbance effect. For example, the flow guide part 120 is connected with the inner wall surface of the mixing part 110 to form the circulating flow channel 140, and the inner wall surface of the flow guide part 120 and the inner wall surface of the mixing part 110 form the mixing flow channel 130. In one embodiment, the flow guide part 120 is a ring-shaped part, the inside of the flow guide part 120 is a cavity, constitutes the mixing flow channel 130, and the outer wall surface of the flow guide part 120 and the inner wall surface of the mixing part 110 form the circulating flow channel 140, or the flow guide part 120 is internally formed with the circulating flow channel 140.

[0033] The flow guide part 120 in the embodiment of the present application is multiple, the multiple flow guide parts 120 are arranged at intervals along the circumference of the flow channel, the multiple flow guide parts 120 surround to form the mixing flow channel 130, the outer wall surface of the flow guide part 120 and the inner wall of the mixing part 110 form the circulating flow channel 140, and / or the flow guide part 120 is internally formed with the circulating flow channel, which can further enhance the disturbance effect of the fluid flow and improve the heat exchange efficiency.

[0034] For example, Figure 1As shown, the flow guide part 120 is 2, which are respectively a first flow guide part and a second flow guide part, and the first flow guide part and the second flow guide part are arranged along the circumference of the flow channel. The inner wall surface of the first flow guide part, the second flow guide part and the mixing part 110 is surrounded to form a mixing flow channel 130. The inside of the first flow guide part is provided with a first circulating flow channel, or the first flow guide part and the inner wall surface of the mixing part 110 are surrounded to form a first circulating flow channel, the inlet of the first circulating flow channel is communicated with the outlet of the mixing flow channel 130, and the outlet of the first circulating flow channel is communicated with the inlet of the mixing flow channel 130, thereby forming a circulating path of fluid. Similarly, the inside of the second flow guide part is provided with a second circulating flow channel, or the second flow guide part and the inner wall surface of the mixing flow channel 130 are formed with a second circulating flow channel, the inlet of the second circulating flow channel is communicated with the outlet of the mixing flow channel 130, and the outlet of the second circulating flow channel is communicated with the inlet of the mixing flow channel 130, thereby forming a second circulating path.

[0035] In the process of operation, the exhaust steam discharged by the steam turbine 300 enters the mixing flow channel 130 through the exhaust port of the steam turbine 300 and the inlet of the mixing flow channel 130, and after the exhaust steam flows through the outlet of the mixing flow channel 130, it is divided into three parts, one part directly enters the condenser 200 through the outlet of the mixing flow channel 130 to exchange heat and is condensed into liquid water; one part enters the first circulating flow channel through the outlet of the mixing flow channel 130 and the inlet of the first circulating flow channel, and after the steam flows in the first circulating flow channel, it returns to the inlet of the mixing flow channel 130 through the outlet of the first circulating flow channel and mixes with the steam in the mixing flow channel 130; one part enters the second circulating flow channel through the outlet of the mixing flow channel 130 and the inlet of the second circulating flow channel, and after the steam flows in the second circulating flow channel, it returns to the inlet of the mixing flow channel 130 through the outlet of the second circulating flow channel and mixes with the steam in the mixing flow channel 130. The steam flowing out of the first circulating flow channel and the steam flowing out of the second circulating flow channel have a certain impact on the steam in the mixing flow channel 130, which changes the steam flow path in the mixing flow channel 130, thereby changing the angle and flow mode of the steam entering the condenser 200, increasing the contact area of the heat exchange tube bundle in the condenser 200, and improving the heat exchange efficiency.

[0036] The number of the flow guide part 120 in the embodiment of the application is not limited to 2, but can also be 3, 4, 6, 7, etc., to realize more efficient fluid disturbance and heat exchange effect.

[0037] Furthermore, the multiple flow guides 120 are integrally molded to simplify the manufacturing and installation process. For example, a mixing channel 130 may be formed inside the integrally molded part, and a circulation channel 140 may be formed between the outer wall surface of the integrally molded part and the inner wall surface of the mixing section 110, or a circulation channel 140 may be formed within the integrally molded part. In one embodiment, there may be one circulation channel 140. In another embodiment, there may be multiple annular channels, which are spaced apart circumferentially along the integrally molded part. By configuring the multiple flow guides 120 as an integrally molded structure, this embodiment of the invention not only improves manufacturing efficiency but also reduces assembly complexity, further enhancing the stability and reliability of the overall device.

[0038] The mixing connector 100 in this embodiment of the invention further includes an outlet throat 150, which is disposed at the outlet of the mixing channel 130. An outlet throat channel 151 is formed within the outlet throat 150. The inlet of the outlet throat channel 151 communicates with the outlet of the mixing channel 130, and the outlet of the outlet throat channel 151 communicates with the inlet of the condenser 200. This allows the steam in the mixing channel 130 to experience an acceleration effect when flowing through the outlet throat channel 151, adjusting the steam injection angle when it is injected into the condenser 200, and achieving an ejection effect. Specifically, the structure of the outlet throat channel 151 can adjust the angle at which the steam enters the condenser 200, thereby optimizing the steam flow path within the condenser 200 and enhancing the heat exchange efficiency of the condenser 200.

[0039] like Figure 2 As shown, the cross-sectional area of ​​the outlet throat flow channel 151 decreases and then increases along the direction from the inlet to the outlet of the outlet throat flow channel 151, forming a flow channel structure that gradually contracts and then expands. The cross-sectional area at the inlet of the outlet throat flow channel 151 is relatively large. After the steam enters the outlet throat flow channel 151 through the mixing flow channel 130, the cross-sectional area of ​​the flow channel gradually decreases, resulting in an increase in steam velocity. According to the principles of fluid dynamics, when the fluid flows through the contraction section, the velocity will increase due to the decrease in cross-sectional area, generating greater kinetic energy. As the cross-sectional area of ​​the outlet throat flow channel 151 further increases, the steam is appropriately expanded at the outlet of the outlet throat flow channel 151, the velocity is regulated, and the injected steam enters the condenser 200 at a more suitable angle. The expansion section can make the direction of steam injection more stable, avoiding excessive bending or uneven flow of steam when entering the condenser 200, thereby improving the heat exchange efficiency of the condenser 200. When steam flows into the condenser 200, the design of the outlet throat flow channel 151 optimizes the steam injection angle and flow rate, creating a stronger disturbance effect inside the condenser 200. This disturbance effect helps to increase the contact area between the steam and the heat exchange tube bundle inside the condenser 200, accelerating the heat exchange process and thus improving the overall heat exchange efficiency.

[0040] In this embodiment of the invention, the outlet throat flow channel 151 gradually contracts and then gradually expands, which can not only adjust the speed and angle of steam injection, but also enhance the injection effect, improve the flow state of steam after entering the condenser 200, increase the contact area with the heat exchange tube bundle in the condenser 200, and improve the heat exchange efficiency.

[0041] The mixing connector 100 provided in this embodiment of the invention also includes an inlet throat 160, which is located at the inlet of the mixing channel 130. An inlet throat channel 161 is formed within the inlet throat 160. The inlet of the inlet throat channel 161 is connected to the exhaust port of the steam turbine 300, and the outlet of the inlet throat channel 161 is connected to the inlet of the mixing channel 130. After the steam is discharged from the steam turbine 300, it is accelerated into the mixing channel 130 through the inlet throat channel 161, thereby increasing the steam velocity and kinetic energy and optimizing the hydrodynamic performance of the subsequent mixing channel 130 and circulation channel 140.

[0042] like Figure 2 As shown, the cross-sectional area of ​​the inlet throat channel 161 gradually decreases from the inlet to the outlet, forming a contracting structure. After entering the inlet throat channel 161, the steam velocity is accelerated due to the gradually decreasing cross-sectional area, increasing the fluid's kinetic energy. This increased steam velocity effectively reduces energy loss during flow, ensuring that the steam continues to flow at a higher velocity and lower pressure after entering the mixing channel 130, thereby enhancing the fluid's dynamics within the mixing channel 130.

[0043] In this embodiment of the invention, an inlet throat 160 is provided at the inlet of the mixing channel 130. The gradually contracting structure of the inlet throat channel 161 accelerates the flow of steam. This not only increases the speed and kinetic energy of the steam after it enters the mixing channel 130, but also optimizes the steam flow pattern, enhances the heat exchange efficiency and operational stability of the system, thereby improving the overall performance of the thermodynamic system.

[0044] The mixing channel 130 in this embodiment of the invention includes a flow-inducing section and a flow-stabilizing section, which are connected. The inlet of the flow-inducing section is the inlet of the mixing channel 130, and the outlet of the flow-stabilizing section is the outlet of the mixing channel 130. The cross-sectional area of ​​the flow-inducing section gradually increases from the inlet of the flow-inducing section to the inlet of the flow-stabilizing section, while the cross-sectional area of ​​the flow-stabilizing section remains the same.

[0045] Specifically, by gradually increasing the cross-sectional area of ​​the diversion section, the fluid gradually adapts to changes in flow rate as it flows through the diversion section. This gradual increase in cross-sectional area also effectively reduces irregularities in the fluid flow, preventing turbulence caused by excessively high velocities. Furthermore, it helps the fluid gradually stabilize its velocity before entering the steady-flow section, optimizing the flow state, reducing eddies and pressure fluctuations, and enhancing fluid dynamics.

[0046] The cross-sectional area of ​​the steady-flow section remains constant, ensuring stable fluid velocity and pressure within this section. This reduces velocity fluctuations and flow instability, thereby improving fluid uniformity within the steady-flow section. The steady-flow section further optimizes the fluid flow pattern, making the fluid flow within the mixing channel 130 smoother and providing more stable and efficient flow conditions for subsequent heat exchange and other processes.

[0047] The circulating flow channel 140 in this embodiment of the invention includes a first guide section, a second guide section, a direct current section, a first transition section, and a second transition section. The inlet of the first guide section is connected to the outlet of the mixing flow channel 130, the outlet of the first guide section is connected to the inlet of the direct current section through the first transition section, the outlet of the direct current section is connected to the inlet of the second guide section through the second transition section, and the outlet of the second guide section is connected to the inlet of the mixing flow channel 130.

[0048] In the circulating channel 140, the first guide section serves as the starting section, its main function being to guide the fluid from the outlet of the mixing channel 130 into the circulating channel 140. The channel size of the first guide section is smaller than that of the direct flow section, and the fluid velocity within the first guide section is higher, accelerating the fluid flow and providing kinetic energy for subsequent flow processes. The connection between the first guide section and the first transition section serves to smooth the transition, avoiding unnecessary pressure loss or eddy currents caused by abrupt changes in flow velocity. The direct flow section has a larger channel size, accommodating a larger fluid flow rate, maintaining a lower flow velocity, and reducing flow resistance. Within the direct flow section, the fluid flows at a relatively stable velocity. The outlet of the direct flow section connects to the second guide section via the second transition section, completing a full circulation of the fluid in the circulating channel 140, ensuring the continuity and smoothness of the fluid flow process. The channel size of the second guide section is also smaller than that of the direct flow section, ensuring a higher fluid velocity during flow and providing the necessary power for fluid recirculation.

[0049] In one specific embodiment, the exhaust volume of the steam turbine 300 is Q, the flow velocity at the inlet of the mixing connector 100 is v, and the minimum dimension d0 of the inlet throat channel 161 is determined, (πd0) 2 ) / 4=Q / v; The inlet size of the mixing channel 130 is the same as the minimum size of the inlet throat channel 161; The size of the steady flow section of the mixing channel 130 is d1, d1=1.5d0; The size of the direct flow section in the circulation channel 140 is d2=0.5d0, and the size of the first guide section 120 and the second guide section 120 of the circulation channel 140 is d3=0.25d0; The size of the outlet of the mixing channel 130 is d4=d0.

[0050] This invention also provides a condensation system, including the mixing connector 100 as described in any of the above embodiments, a steam turbine 300, and a condenser 200. The inlet of the mixing connector 100 is connected to the exhaust port of the steam turbine 300, and the outlet of the mixing connector 100 is connected to the inlet of the condenser 200. Specifically, a mixing channel 130 is formed within the mixing connector 100. The inlet of the mixing channel 130 is connected to the exhaust port of the steam turbine 300, and the outlet of the mixing channel 130 is connected to the inlet of the condenser 200. This invention improves heat exchange efficiency by adjusting the angle at which steam enters the condenser 200 through the mixing connector 100 at the inlet of the condenser 200, thereby increasing the contact area between the steam and the heat exchange tube bundle within the condenser 200. In this invention, the outlet of the mixing connector 100 can be welded to the inlet of the condenser 200, and the inlet of the mixing connector 100 can be welded to the outlet of the steam turbine. In one embodiment, the hybrid connector 100 and the condenser 200 may be integrally molded.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A hybrid connector, characterized in that, include: The system includes a mixing section and a guiding section. The mixing section has a flow channel, and the guiding section is located within the flow channel, dividing the flow channel into a mixing flow channel and a circulating flow channel. The inlet of the mixing flow channel is connected to the exhaust port of the steam turbine, and the outlet of the mixing flow channel is connected to the inlet of the condenser. The inlet of the circulating flow channel is connected to the outlet of the mixing flow channel, and the outlet of the circulating flow channel is connected to the inlet of the mixing flow channel.

2. The hybrid connector according to claim 1, characterized in that, The flow guide is a plurality of such flow guides, which are spaced apart circumferentially along the flow channel. The plurality of flow guides surround the mixing flow channel. The outer wall surface of the flow guide and the inner wall surface of the mixing part form the circulation flow channel, and / or the circulation flow channel is formed inside the flow guide.

3. The hybrid connector according to claim 2, characterized in that, The multiple flow guides are integrally molded parts.

4. The hybrid connector according to claim 1, characterized in that, It also includes an outlet throat, in which an outlet throat flow channel is formed, the inlet of the outlet throat flow channel is connected to the outlet of the mixing flow channel, and the outlet of the outlet throat flow channel is used to connect to the inlet of the condenser.

5. The hybrid connector according to claim 4, characterized in that, The cross-sectional area of ​​the outlet throat flow channel first decreases and then increases along the direction from the inlet of the outlet throat flow channel to the outlet of the outlet throat flow channel.

6. The hybrid connector according to claim 1, characterized in that, It also includes an inlet throat, in which an inlet throat flow channel is formed. The inlet of the inlet throat flow channel is used to communicate with the exhaust port of the steam turbine, and the outlet of the inlet throat flow channel is connected to the inlet of the mixing flow channel.

7. The hybrid connector according to claim 6, characterized in that, The cross-sectional area of ​​the inlet throat flow channel gradually decreases along the direction from the inlet of the inlet throat flow channel to the outlet of the inlet throat flow channel.

8. The hybrid connector according to claim 1, characterized in that, The mixing channel includes an interconnected flow-inducing section and a flow-stabilizing section. The cross-sectional area of ​​the flow-inducing section gradually increases from the inlet of the flow-inducing section to the inlet of the flow-stabilizing section, and the cross-sectional area of ​​the flow-stabilizing section is the same.

9. The hybrid connector according to claim 1, characterized in that, The circulating flow channel includes a first guide section, a second guide section, and a direct current section. The inlet of the first guide section is connected to the outlet of the mixing flow channel, and the outlet of the first guide section is connected to the inlet of the direct current section through a first transition section. The outlet of the direct current section is connected to the inlet of the second guide section through a second transition section, and the outlet of the second guide section is connected to the inlet of the mixing flow channel.

10. A condensation system, characterized in that, It includes a condenser and a steam turbine, and further includes a mixing connector as described in any one of claims 1 to 9, wherein the inlet of the mixing connector is connected to the exhaust port of the steam turbine, and the outlet of the mixing connector is connected to the inlet of the condenser.

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