Hybrid connecting piece and condensing system

Abstract

The invention relates to the technical field of heat exchange equipment, and provides a mixed connecting piece and a condensing system. The mixing connecting piece comprises a mixing part and a flow guide part, a flow channel is formed in the mixing part, the flow guide part is arranged in the flow channel, and the flow channel is divided into a mixing flow channel and a circulating flow channel by the flow guide part; an inlet of the mixing flow channel is used for communicating with a steam exhaust port of a steam turbine, and an outlet of the mixing flow channel is used for communicating with an inlet of a condenser. An inlet of the circulating flow channel is communicated with an outlet of the mixing flow channel, and an outlet of the circulating flow channel is communicated with an inlet of the mixing flow channel. The outlet of the mixing flow channel is 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 mixing flow channel, and the steam is mixed in the mixing flow channel by adopting a steam split-flow circulation method, so that the airflow at the outlet of the mixing flow channel is changed, and the steam can be sprayed in all directions; the contact area with a heat exchange tube bundle in the condenser is increased, and the heat exchange efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of heat exchange equipment, and in particular to a mixing connector and a condensation system. Background Art

[0002] As a cold source device in the ship's power system, the condenser converts the exhaust steam from the upstream steam turbine into liquid water and then reintroduces it into the steam generator to maintain the system circulation.

[0003] In the prior art, shell and tube condensers are commonly used as cold source equipment. The air inlet of this type of condenser is usually set in the middle of the top to receive the exhaust steam from the turbine. Since the condenser itself has a long structure, after the steam enters the condenser, it mainly exchanges heat with the middle area of ​​the heat exchange tube bundle. This phenomenon causes the heat exchange area at both ends of the condenser to be unable to be fully utilized, resulting in serious waste of heat exchange area and low heat exchange efficiency. Summary of the invention

[0004] The present invention provides a hybrid connector and a condensing system, which are used to solve the problem in the prior art that the steam in the condenser cannot exchange heat with the two ends of the heat exchange tube bundle, resulting in a low heat exchange rate.

[0005] The present invention provides a mixing connector, comprising: a mixing portion and a guide portion, wherein a flow channel is formed in the mixing portion, the guide portion is arranged in the flow channel, and the guide portion divides the flow channel into a mixing flow channel and a circulation flow channel; the inlet of the mixing flow channel is used to communicate with the exhaust port of a steam turbine, and the outlet of the mixing flow channel is used to communicate with the inlet of a condenser; the inlet of the circulation flow channel is connected to the outlet of the mixing flow channel, and the outlet of the circulation flow channel is connected to the inlet of the mixing flow channel.

[0006] According to a mixing connector provided by the present invention, there are multiple guide parts, and the multiple guide parts are arranged at intervals along the circumference of the flow channel. The multiple guide parts are arranged to form the mixing flow channel, the outer wall surface of the guide part and the inner wall surface of the mixing part form the circulation flow channel, and / or the circulation flow channel is formed in the guide part.

[0007] According to a hybrid connector provided by the present invention, the plurality of flow guide portions are an integrally formed part.

[0008] A mixing connector provided according to the present invention 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 with the inlet of the condenser.

[0009] According to a mixing connector provided by the present invention, 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.

[0010] A mixing connector provided according to the present invention 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.

[0011] According to a mixing connector provided by the present invention, 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.

[0012] According to a mixing connector provided by the present invention, the mixing flow channel includes a diversion section and a flow stabilization section which are interconnected, and the cross-sectional area of ​​the diversion section gradually increases along the direction from the inlet of the diversion section to the inlet of the flow stabilization section, and the cross-sectional area of ​​the flow stabilization section is the same.

[0013] According to a mixing connector provided by the present invention, the circulation 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.

[0014] The present invention also provides a condensing system, comprising a condenser and a steam turbine, and also comprising a mixing connector as described in any one of the above items, 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.

[0015] The mixing connector and condensation system provided by the present invention respectively connect the outlet of the mixing flow channel with the inlet of the condenser and the circulation flow channel, and the outlet of the circulation flow channel is connected with the inlet of the mixing flow channel. A steam split circulation method is adopted to cause the steam to generate mixed flow in the mixing flow channel, thereby changing the airflow at the outlet of the mixing flow channel, allowing the steam to be sprayed in all directions, thereby increasing the contact area with the heat exchange tube bundle in the condenser and improving the heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 is a schematic structural diagram of a hybrid connector provided by the present invention; Figure 2 It is a structural schematic diagram of the condensation system provided by the present invention; Reference numerals: 100. Mixing connector; 110. Mixing section; 120. Guide section; 130. Mixing flow channel; 140. Circulation flow channel; 150. Outlet throat; 151. Outlet throat flow channel; 160. Inlet throat; 161. Inlet throat flow channel; 200. Condenser; 300. Steam turbine. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0020] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0022] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0023] The disclosure below provides many different embodiments or examples to realize different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplicity and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the examples of various specific processes and materials provided by the present invention, but those of ordinary skill in the art can be aware of the applicability of other processes and / or the use of other materials.

[0024] Combine the following Figure 1-Figure 2 The hybrid connection and condensation system of the present invention are described.

[0025] An embodiment of the present invention provides a mixing connector 100 for connecting a steam turbine 300 and a condenser 200, so that the exhaust steam discharged from the steam turbine 300 enters the condenser 200 through the mixing connector 100 and is converted into liquid water.

[0026] like Figure 2 As shown, the mixing connector 100 includes a mixing portion 110 and a flow guide portion 120. A flow channel is formed in the mixing portion 110, and the flow guide portion 120 is disposed in the flow channel. The flow guide portion 120 divides the flow channel into a mixing flow channel 130 and a circulation flow channel 140. The inlet of the mixing flow channel 130 is used to communicate with the exhaust port of the steam turbine 300, and the outlet of the mixing flow channel 130 is used to communicate with the inlet of the condenser 200, as shown in FIG. Figure 1 The inlet of the circulation channel 140 is communicated with the outlet of the mixing channel 130 , and the outlet of the circulation channel 140 is communicated with the inlet of the mixing channel 130 .

[0027] 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. The exhaust steam flow is divided into two parts, one part of which directly enters the condenser 200 through the outlet of the mixing flow channel 130 for heat exchange and condenses into liquid water; the other part enters the circulation flow channel 140 through the outlet of the mixing flow channel 130 and the inlet of the circulation flow channel 140. After flowing in the circulation flow channel 140, the steam returns to the inlet of the mixing flow channel 130 through the outlet of the circulation flow channel 140. The steam flow in the circulation flow channel 140 impacts the steam flow at the inlet of the mixing flow channel 130, and then enters the mixing flow channel 130 for mixing; the circulating flow of steam produces a disturbance effect, which changes the flow path of the steam in the mixing flow channel 130, thereby affecting the way and angle of the steam entering the condenser 200, increasing the contact area with the heat exchange tube bundle in the condenser 200, and improving the heat exchange efficiency.

[0028] The mixing connector 100 provided in the embodiment of the present invention connects the outlet of the mixing channel 130 with the inlet of the condenser 200 and the circulating channel 140 respectively, and the outlet of the circulating channel 140 is connected with the inlet of the mixing channel 130, so that the steam generates a mixed flow in the mixing channel 130, thereby changing the airflow at the outlet of the mixing channel 130, allowing the steam to be ejected in all directions, thereby increasing the contact area with the heat exchange tube bundle in the condenser 200 and improving the heat exchange efficiency.

[0029] In the embodiment of the present invention, the structure of the guide portion 120 is not specifically limited, and the formed mixing channel 130 and the circulation channel 140 can flow alternately to produce a disturbance effect. For example, the guide portion 120 is connected to the inner wall surface of the mixing portion 110 to form the circulation channel 140; the inner wall surface of the guide portion 120 and the inner wall surface of the mixing portion 110 form the mixing channel 130. In one embodiment, the guide portion 120 is an annular member, the interior of the guide portion 120 is a cavity, forming the mixing channel 130, the outer wall surface of the guide portion 120 and the inner wall surface of the mixing portion 110 form the circulation channel 140, or the circulation channel 140 is formed in the guide portion 120.

[0030] There are multiple guide parts 120 in the embodiment of the present invention, and the multiple guide parts 120 are arranged at intervals along the circumference of the flow channel. The multiple guide parts 120 are arranged to form a mixing flow channel 130. The outer wall surface of the guide part 120 and the inner wall of the mixing part 110 form a circulation flow channel 140, and / or a circulation flow channel is formed in the guide part 120, which can further enhance the disturbance effect of the fluid flow and improve the heat exchange efficiency.

[0031] like Figure 1As shown, there are two flow guides 120, namely the first flow guide and the second flow guide, which are arranged at intervals along the circumference of the flow channel. The first flow guide, the second flow guide and the inner wall surface of the mixing portion 110 are arranged to form a mixing flow channel 130. A first circulation flow channel is arranged inside the first flow guide, or the first flow guide and the inner wall surface of the mixing portion 110 are arranged to form a first circulation flow channel, the inlet of the first circulation flow channel is connected to the outlet of the mixing flow channel 130, and the outlet of the first circulation flow channel is connected to the inlet of the mixing flow channel 130, forming a circulation path of the fluid. Similarly, a second circulation flow channel is arranged inside the second flow guide, or the second flow guide and the inner wall surface of the mixing flow channel 130 form a second circulation flow channel, the inlet of the second circulation flow channel is connected to the outlet of the mixing flow channel 130, and the outlet of the second circulation flow channel is connected to the inlet of the mixing flow channel 130, thereby forming a second circulation path.

[0032] During operation, the exhaust steam discharged from the turbine 300 enters the mixing flow channel 130 through the exhaust port of the turbine 300 and the inlet of the mixing flow channel 130. After flowing through the outlet of the mixing flow channel 130, the exhaust steam is divided into three parts, one part of which directly enters the condenser 200 through the outlet of the mixing flow channel 130 for heat exchange and condenses into liquid water; one part enters the first circulation flow channel through the outlet of the mixing flow channel 130 and the inlet of the first circulation flow channel. After the steam flows in the first circulation flow channel, it returns to the inlet of the mixing flow channel 130 through the outlet of the first circulation flow channel to mix with the steam in the mixing flow channel 130; one part enters the second circulation flow channel through the outlet of the mixing flow channel 130 and the inlet of the second circulation flow channel. After flowing in the second circulation flow channel, the steam returns to the inlet of the mixing flow channel 130 through the outlet of the second circulation flow channel to mix with the steam in the mixing flow channel 130. The steam flowing out of the first circulation channel and the steam flowing out of the second circulation channel have a certain impact on the steam in the mixing channel 130, changing the steam flow path in the mixing channel 130, thereby changing the angle and flow pattern 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.

[0033] The number of the guide parts 120 in the embodiment of the present invention is not limited to 2, but may also be 3, 4, 6, 7, etc., to achieve more efficient fluid disturbance and heat exchange effects.

[0034] Furthermore, the multiple guides 120 are integrally formed parts to simplify the manufacturing and installation process. For example, a mixing channel 130 is formed inside the integrally formed part, a circulation channel 140 is formed between the outer wall surface of the integrally formed part and the inner wall surface of the mixing part 110, or a circulation channel 140 is formed inside the integrally formed part. In one embodiment, there may be one circulation channel 140. In another embodiment, there are multiple annular channels, and the multiple annular channels are arranged at intervals along the circumference of the integrally formed part. In the embodiment of the present invention, the multiple guides 120 are arranged as an integrally formed structure, which can not only improve the manufacturing efficiency, but also reduce the complexity during assembly, and further improve the stability and reliability of the overall device.

[0035] The mixing connector 100 in the embodiment of the present 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 in the outlet throat 150, and the inlet of the outlet throat channel 151 is connected to the outlet of the mixing channel 130. The outlet of the outlet throat channel 151 is used to be connected to the inlet of the condenser 200, so that the steam in the mixing channel 130 can produce an acceleration effect when flowing through the outlet throat channel 151, and the angle of steam injection can be adjusted when the steam is injected into the condenser 200, so as to achieve the effect of injection. 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 in the condenser 200, and further enhancing the heat exchange efficiency of the condenser 200.

[0036] like Figure 2 As shown, the cross-sectional area of ​​the outlet throat flow channel 151 decreases first and then increases along the direction from the inlet of the outlet throat flow channel 151 to the outlet of the outlet throat flow channel 151, forming a flow channel structure that gradually contracts and then gradually 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 the steam flow rate. According to the principles of fluid dynamics, when the fluid flows through the contraction portion, the flow rate will increase due to the decrease in the 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 flow rate is adjusted, and the injected steam enters the condenser 200 at a more suitable angle. The expansion portion can make the direction of the steam injection more stable, avoid excessive bending or uneven flow of the steam when entering the condenser 200, thereby improving the heat exchange efficiency of the condenser 200. When steam flows into the condenser 200, due to the design of the outlet throat flow channel 151, the injection angle and flow rate of the steam are optimized, which can form 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, accelerate the heat exchange process, and thus improve the overall heat exchange efficiency.

[0037] The outlet throat flow channel 151 in the embodiment of the present invention first 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.

[0038] The mixing connector 100 provided in the embodiment of the present invention further includes an inlet throat 160, which is disposed at the inlet of the mixing flow channel 130. An inlet throat flow channel 161 is formed in the inlet throat 160, and the inlet of the inlet throat flow channel 161 is used to communicate with the exhaust port of the steam turbine 300, and the outlet of the inlet throat flow channel 161 is communicated with the inlet of the mixing flow channel 130. After the steam is discharged from the steam turbine 300, it is accelerated into the mixing flow channel 130 through the inlet throat flow channel 161, thereby increasing the flow rate and kinetic energy of the steam and optimizing the fluid dynamic performance in the subsequent mixing flow channel 130 and the circulation flow channel 140.

[0039] like Figure 2 As shown, the cross-sectional area of ​​the inlet throat flow channel 161 gradually decreases from the inlet of the inlet throat flow channel 161 to the outlet of the inlet throat flow channel 161, forming a contraction structure. After the steam enters the inlet throat flow channel 161, the flow rate of the steam is accelerated due to the gradual reduction of the cross-sectional area of ​​the flow channel, and the kinetic energy of the fluid is increased. When the steam flow rate is increased, the energy loss in the flow process can be effectively reduced, ensuring that the steam can continue to flow at a higher speed and lower pressure after entering the mixing flow channel 130, thereby increasing the power of the fluid in the mixing flow channel 130.

[0040] The embodiment of the present invention sets an inlet throat 160 at the inlet of the mixing flow channel 130, and utilizes the gradually contracting structure of the inlet throat flow channel 161 to accelerate the flow of steam, which can not only increase the speed and kinetic energy of the steam after entering the mixing flow channel 130, but also optimize the flow state of the steam, enhance the heat exchange efficiency and operation stability of the system, thereby improving the performance of the overall thermal system.

[0041] The mixing channel 130 in the embodiment of the present invention includes a diversion section and a steady flow section, and the diversion section and the steady flow section are connected. The inlet of the diversion section is the inlet of the mixing channel 130, and the outlet of the steady flow section is the outlet of the mixing channel 130. The cross-sectional area of ​​the diversion section gradually increases from the inlet of the diversion section to the inlet of the steady flow section, and the cross-sectional area of ​​the steady flow section is the same.

[0042] Specifically, the cross-sectional area of ​​the drainage section is gradually increased, which enables the fluid to gradually adapt to the change of flow rate when flowing through the drainage section, and effectively reduces the irregularity of the fluid during the flow process through the gradual increase structure, avoiding turbulence caused by excessive flow rate. In addition, it also helps the fluid to gradually stabilize the flow rate before entering the steady flow section, optimize the flow state, reduce eddy currents and pressure fluctuations, and enhance the fluid dynamics characteristics.

[0043] The cross-sectional area of ​​the steady flow section remains constant, ensuring that the fluid maintains a stable flow velocity and pressure in this section, reducing flow velocity fluctuations and flow instability, thereby improving the uniformity of the fluid in the steady flow section. The steady flow section can further optimize the flow state of the fluid, making the fluid flow in the mixing channel 130 more stable, providing more stable and efficient flow conditions for subsequent processes such as heat exchange.

[0044] The circulation channel 140 in the embodiment of the present invention includes a first flow guide section, a second flow guide section, a direct flow section, a first transition section, and a second transition section. The inlet of the first flow guide section is connected to the outlet of the mixing channel 130, the outlet of the first flow guide section is connected to the inlet of the direct flow section through the first transition section, the outlet of the direct flow section is connected to the inlet of the second flow guide section through the second transition section, and the outlet of the second flow guide section is connected to the inlet of the mixing channel 130.

[0045] In the circulation channel 140, the first guide section serves as the starting section, and its main function is to guide the fluid from the outlet of the mixing channel 130 into the circulation channel 140. The flow channel size of the first guide section is smaller than the flow channel size of the direct flow section. The flow velocity of the fluid in the first guide section is relatively high, which can accelerate the flow of the fluid and provide certain kinetic energy for the subsequent flow process. The connection between the first guide section and the first transition section plays a role in smooth transition, avoiding unnecessary pressure loss or eddy current phenomenon caused by a sharp change in flow velocity. The flow channel size of the direct flow section is relatively large, which can accommodate a large fluid flow, maintain a low flow velocity, and reduce flow resistance. In the direct flow section, the fluid flows at a relatively stable speed. The outlet of the direct flow section is connected to the second guide section through the second transition section, completing a complete cycle of the fluid in the circulation channel 140, ensuring the continuity and smoothness of the fluid flow process. The flow channel size of the second guide section is also smaller than the direct flow section, ensuring that the fluid has a higher speed when flowing, and providing the required power for the reflux of the fluid.

[0046] In a 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 size d0 of the inlet throat flow passage 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 straight flow section in the circulation channel 140 is d2=0.5d0, and the size of the first guide part 120 and the second guide part 120 of the circulation channel 140 is d3=0.25d0; the size of the outlet of the mixing channel 130 is d4=d0.

[0047] The embodiment of the present invention further provides a condensation system, comprising the mixing connector 100 in any of the above embodiments, and also comprising a steam turbine 300 and a condenser 200, wherein 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 flow channel 130 is formed in the mixing connector 100, wherein the inlet of the mixing flow channel 130 is connected to the exhaust port of the steam turbine 300, and the outlet of the mixing flow channel 130 is connected to the inlet of the condenser 200. The embodiment of the present invention arranges the mixing connector 100 at the inlet of the condenser 200, adjusts the angle at which steam enters the condenser 200, increases the contact area between the steam and the heat exchange tube bundle in the condenser 200, and improves the heat exchange efficiency. The outlet of the mixing connector 100 in the embodiment of the present invention can be connected to the inlet of the condenser 200 by welding, and the inlet of the mixing connector 100 can be connected to the outlet of the steam turbine by welding. In one embodiment, the hybrid connector 100 and the condenser 200 may be an integrally formed part.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions 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: A mixing section and a guide section, wherein a flow channel is formed in the mixing section, the guide section is arranged in the flow channel, and the guide section divides the flow channel into a mixing flow channel and a circulation flow channel; the inlet of the mixing flow channel is used to communicate with the exhaust port of the steam turbine, and the outlet of the mixing flow channel is used to communicate with the inlet of the condenser; the inlet of the circulation flow channel is connected with the outlet of the mixing flow channel, and the outlet of the circulation flow channel is connected with the inlet of the mixing flow channel.

2. The hybrid connector according to claim 1, characterized in that: There are multiple guide parts, and the multiple guide parts are arranged at intervals along the circumference of the flow channel. The multiple guide parts are arranged to form the mixing flow channel. The outer wall surface of the guide part and the inner wall surface of the mixing part form the circulation flow channel, and / or the circulation flow channel is formed in the guide part.

3. The hybrid connector according to claim 2, characterized in that: The plurality of guide parts are an integrally formed part.

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 with the outlet of the mixing flow channel, and the outlet of the outlet throat flow channel is used to communicate with 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 in a 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 communicated with 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 passage gradually decreases from the inlet of the inlet throat flow passage to the outlet of the inlet throat flow passage.

8. The hybrid connector according to claim 1, characterized in that: The mixing channel includes a diversion section and a flow stabilization section which are interconnected. The cross-sectional area of ​​the diversion section gradually increases along the direction from the inlet of the diversion section to the inlet of the flow stabilization section, and the cross-sectional area of ​​the flow stabilization section is the same.

9. The hybrid connector according to claim 1, characterized in that: The circulation 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 comprises a condenser and a steam turbine, and also comprises a mixing connector as claimed 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.

Images