Water-cooled condenser

Abstract

The utility model relates to the technical field of condensers, in particular to a water-cooled condenser which comprises a throat part, a shell, a condensing tube bundle, partition plates and a hot well. The throat part communicates with the shell, and the partition plates comprise the first partition plate and the second partition plate; the first partition plate is fixedly connected in the throat part and divides the interior of the throat part into two mutually independent first cavities, the second partition plate is fixedly connected in the shell and is used for dividing the interior of the shell into two mutually independent second cavities, the first cavities communicate with the second cavities on the same side, and the two second cavities are each internally provided with a set of condensation pipe bundle; the hot well is used for recycling condensate water. Exhaust steam of the multiple steam turbines is condensed at the same time, and the problem that the occupied space of the multiple steam condensers is large is solved.

Description

Technical Field

[0001] The present application relates to the technical field of condensers, and in particular to a water-cooled condenser. Background Art

[0002] The water-cooled condenser is one of the equipments supporting the steam turbine. The negative pressure steam discharged from the steam turbine enters the condenser, and the latent heat of vaporization is taken away by the cooling water, so that the exhaust steam of the steam turbine is restored to water. Conventional condensers generally accept the single-pressure exhaust steam of a single steam turbine (referred to as single back-pressure condensers). However, according to different work requirements, there is a need to condense the exhaust steam of multiple steam turbines. Since the steam pressure of each steam turbine exhaust is different, multiple condensers are needed to match multiple steam turbines, and there is a problem that multiple condensers occupy a large area. Utility Model Content

[0003] The purpose of the present application is to provide a water-cooled condenser which can condense exhaust steam from multiple steam turbines at the same time, thereby reducing the problem of multiple condensers occupying a large space.

[0004] The water condenser provided in this application adopts the following technical solution:

[0005] A water-to-condenser comprises a throat, an outer shell, a condensing tube bundle, a partition plate and a hot well, wherein the throat is connected to the outer shell, the partition plate comprises a first partition plate and a second partition plate, the first partition plate is fixedly connected to the throat and divides the interior of the throat into two mutually independent first cavities, the second partition plate is fixedly connected to the outer shell and is used to divide the interior of the outer shell into two mutually independent second cavities, the first cavity is connected to the second cavity on the same side, a group of the condensing tube bundle is installed in each of the two second cavities, and the hot well is used to recover condensed water.

[0006] By adopting the above technical scheme, the first partition plate and the second partition plate are used to separate the mutually independent first cavity and the mutually independent second cavity, so that the exhaust steam of one steam turbine flows into one group of the first cavity and the second cavity, and the exhaust steam of the other steam turbine flows into the other group of the first cavity and the second cavity, so that the exhaust steam of the two steam turbines can be condensed separately in the water-cooled condenser without affecting each other, thereby eliminating the need to use two groups of water-cooled condensers to condense the two steam turbines separately, saving space.

[0007] Optionally, the partition plate further includes a third partition plate, which is fixedly connected to the inside of the hot well and divides the hot well into two independent third cavities, and the third cavity is connected to the second cavity on the same side.

[0008] By adopting the above technical solution, the hot well is divided into two independent third cavities by setting a third partition plate, so there is no need to set two hot wells connected to the two second cavities respectively, which further saves the occupied space of the water-cooled condenser.

[0009] Optionally, the third partition plate is inserted into the hot well and has a connecting hole extending through the side wall below the liquid level, and the connecting hole is used to connect the two third cavities.

[0010] By adopting the above technical solution, in the process of extracting condensed water, a condensed water pump system is used to extract the condensed water from the hot well, thereby saving costs.

[0011] Optionally, a first reinforcement component is disposed in each of the first cavities, and the first reinforcement component is used to support the first partition plate;

[0012] The first reinforcement assembly includes a plurality of reinforcement rods, and the plurality of reinforcement rods are interlaced to form a first frame, and the first frame is fixedly connected to the inner wall of the throat and the first partition plate respectively.

[0013] By adopting the above technical solution and setting the reinforcing rod, the deformation of the first partition plate due to excessive pressure is reduced.

[0014] Optionally, a second reinforcement component is disposed in each of the second cavities, and the second reinforcement component is used to support the second partition plate;

[0015] The second reinforcement assembly includes a plurality of supporting partitions, each of which is fixedly connected to the second partition plate and the inner wall of the shell.

[0016] By adopting the above technical solution and providing a supporting partition, the deformation of the second partition plate due to excessive pressure is reduced.

[0017] Optionally, the condensation tube bundle passes through a plurality of the supporting baffles and is fixedly connected to a plurality of the supporting baffles.

[0018] By adopting the above technical solution, the condenser tube bundle is penetrated through the supporting partition, so that the supporting partition supports the condenser tube bundle while supporting the second partition plate, thereby reducing the possibility of deformation of the condenser tube bundle.

[0019] Optionally, a third reinforcement component is provided in each of the third cavities, and the third reinforcement component includes a plurality of reinforcing ribs, and the plurality of reinforcing ribs are staggered to form a second frame, and the second frame is fixedly connected to the inner wall of the hot well and the third partition plate respectively.

[0020] By adopting the above technical solution and providing the second frame, the third partition plate is supported, thereby reducing the deformation of the third partition plate due to excessive pressure.

[0021] Optionally, each group of the condenser tube bundles includes two groups of condenser tubes, and one ends of the two groups of condenser tubes on the same side are connected to each other.

[0022] By adopting the above technical solution, the two groups of condenser tubes are connected to each other at one end on the same side through pipes, so that the entire condenser tube bundle is U-shaped, one end of one condenser tube serves as a water inlet, and one end of the other condenser tube serves as a water outlet, so that the condenser tube bundle can simultaneously take in and out water on the same side, thereby increasing the length of the condenser tube bundle and further increasing the contact area between the exhaust steam and the condenser tube.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. The first partition plate and the second partition plate are used to separate the first cavity and the second cavity, which are independent of each other, so that the exhaust steam of one steam turbine flows into one group of the first cavity and the second cavity, and the exhaust steam of another steam turbine flows into another group of the first cavity and the second cavity, so that the exhaust steam of the two steam turbines is condensed separately in the water condenser without affecting each other, and thus there is no need to use two groups of water condensers to condense the two steam turbines separately, thus saving space;

[0025] 2. In the process of extracting condensate, a condensate pump system can be used to extract condensate from hot wells, saving costs;

[0026] 3. Use the condenser tube bundle to penetrate the supporting partition, so that the supporting partition supports the condenser tube bundle while supporting the second partition plate, reducing the possibility of deformation of the condenser tube bundle. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of a water condenser according to an embodiment of the present application.

[0028] Figure 2 It is a schematic diagram of the cross-sectional structure of a water condenser according to an embodiment of the present application.

[0029] In the figure, 1, throat; 2, outer shell; 3, hot well; 4, condenser tube bundle; 41, condenser; 5, partition plate; 51, first partition plate; 52, second partition plate; 53, third partition plate; 531, connecting hole; 61, first cavity; 62, second cavity; 63, third cavity; 7, third reinforcement assembly; 71, reinforcement rib; 72, second frame; 8, first reinforcement assembly; 81, reinforcement rod; 82, first frame; 9, second reinforcement assembly; 91, supporting partition. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1 -Attached Figure 2 , further details of this application are given.

[0031] A water condenser, referring to Figure 1 and Figure 2 , including a throat 1, a shell 2 and a hot well 3. The throat 1 and the hot well 3 are both connected to the shell 2. The throat 1 is used to receive the exhaust steam transmitted by the steam turbine, and the hot well 3 is used to collect condensed water formed after the exhaust steam is condensed. In this embodiment, the throat 1 is arranged on the top of the shell 2, and the hot well 3 is arranged on the bottom of the shell 2.

[0032] The water-cooled condenser further includes a condenser tube bundle 4, which is disposed in the housing 2 and is used to condense the exhaust steam flowing into the housing 2 from the throat 1. In this embodiment, in order to increase the length of the condenser tube bundle 4, thereby increasing the contact area between the exhaust steam and the condenser tubes 41, the condenser tube bundle 4 includes two groups of condenser tubes 41, the two groups of condenser tubes 41 are arranged in parallel with each other, and one end of the two groups of condenser tubes 41 on the same side is connected to each other through a pipeline, so that the entire condenser tube bundle 4 is U-shaped, one end of one condenser tube 41 is used as a water inlet, and one end of the other condenser tube 41 is used as a water outlet, so that the condenser tube bundle 4 can simultaneously inlet and outlet water on the same side.

[0033] The water condenser also includes a partition plate 5, which includes a first partition plate 51, a second partition plate 52 and a third partition plate 53. The first partition plate 51 is fixedly connected in the throat 1 and divides the throat 1 into two independent first cavities 61; the second partition plate 52 is fixedly connected in the outer shell 2 and divides the interior of the outer shell 2 into two independent second cavities 62; the third partition plate 53 is fixedly connected in the hot well 3 and divides the inside of the hot well 3 into two independent third cavities 63.

[0034] In this embodiment, taking the left and right direction as an example, the two first cavities 61 are respectively located on the left and right sides of the first partition plate 51 , the two second cavities 62 are respectively located on the two sides of the second partition plate 52 , and the two third cavities 63 are respectively located on the two sides of the third partition plate 53 .

[0035] The first partition plate 51, the second partition plate 52 and the third partition plate 53 are fixedly connected in sequence, the first cavity 61, the second cavity 62 and the third cavity 63 on the left are connected in sequence to form a first cavity, and the first cavity 61, the second cavity 62 and the third cavity 63 on the right are connected in sequence to form a second cavity. The first cavity and the second cavity are independent of each other.

[0036] A set of condensation tube bundles 4 is arranged in each second cavity 62. The water inlet and water outlet of the two sets of condensation tube bundles 4 are not shared, and the two sets of condensation tube bundles 4 are provided with independent water inlet and water outlet. When it is necessary to condense the exhaust steam of two steam turbines at the same time, the exhaust steam of one steam turbine is introduced into the first chamber and condensed in the first chamber, and the exhaust steam of the other steam turbine is introduced into the second chamber and condensed in the second chamber. The condensed water formed in the first chamber is stored in the third chamber on the left, and the condensed water formed in the second chamber is stored in the third chamber on the right.

[0037] In order to reduce costs, a connecting hole 531 is provided on the third partition plate 53 to connect the two third cavities 63 to each other. In order to ensure that the air pressures of the first chamber and the second chamber do not affect each other, a portion of condensed water is reserved in the hot well 3, and the connecting hole 531 is below the liquid level of the hot well 3. In the process of extracting condensed water, a set of condensed water pump system is used to extract condensed water from the hot well 3, saving costs.

[0038] In order to support the partition plate 5 and reduce the deformation of the partition plate 5 due to excessive pressure, a water-cooled condenser also includes a first reinforcement component 8 and a second reinforcement component 9. The first reinforcement component 8 is arranged at the throat 1 and is used to support the first partition plate 51. The second reinforcement component 9 is arranged in the outer shell 2 and is used to support the second partition plate 52.

[0039] The first reinforcement assembly 8 includes a plurality of reinforcement rods 81, and the plurality of reinforcement rods 81 include an x-rod, a y-rod, and a z-rod. The x-rod and the y-rod are fixed to each other, and the z-rod is fixed to the x-rod and the y-rod respectively. There are a plurality of x-rods, and the plurality of x-rods are parallel to each other. There are a plurality of y-rods, and the plurality of y-rods are parallel to each other. There are a plurality of z-rods, and the plurality of z-rods are parallel to each other. The plurality of x-rods, the plurality of y-rods, and the plurality of z-rods together form a first frame 82. The first frame 82 is fixedly connected to the first partition plate 51 and the inner wall of the throat 1, respectively, so as to support the first partition plate 51. The first frame 82 is disposed in both first cavities 61.

[0040] The second reinforcement assembly 9 includes a plurality of support baffles 91, which are arranged parallel to each other, and both ends of each support baffle 91 are fixedly connected to the second partition plate 52 and the inside of the housing 2, and the second reinforcement assembly 9 is arranged in the two second cavities 62. In order to support the condenser tube bundle 4, the condenser tube bundle 4 passes through the plurality of support baffles 91 and is highly connected to the plurality of support baffles 91, so that the support baffles 91 support the condenser tube bundle 4.

[0041] A third reinforcement assembly 7 is provided in each third cavity 63, and the third reinforcement assembly 7 includes a plurality of reinforcement ribs 71, and the plurality of reinforcement ribs 71 are interlaced to form a second frame 72, and the second frame 72 is fixedly connected to the inner wall of the hot well 3 and the third partition plate 53, respectively. In this embodiment, the structure of the second frame 72 is the same as that of the first frame 82. The second frame 72 is provided to support the third partition plate 53, thereby reducing the deformation of the third partition plate 53 due to excessive pressure.

[0042] The implementation principle of the embodiment of the present application is: when it is necessary to condense the exhaust steam of two steam turbines, the exhaust steam of one steam turbine is passed into the first chamber, and the exhaust steam of the other steam turbine is passed into the second chamber, and the exhaust steam of the two steam turbines is condensed in the first chamber and the second chamber respectively, and the formed condensed water flows into the hot well 3 for recovery.

[0043] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A water condenser, characterized in that: The invention comprises a throat (1), an outer shell (2), a condensation tube bundle (4), a partition plate (5) and a hot well (3), wherein the throat (1) is connected to the outer shell (2), the partition plate (5) comprises a first partition plate (51) and a second partition plate (52), the first partition plate (51) is fixedly connected to the throat (1) and divides the interior of the throat (1) into two mutually independent first cavities (61), the second partition plate (52) is fixedly connected to the outer shell (2) and is used to divide the interior of the outer shell (2) into two mutually independent second cavities (62), the first cavity (61) is connected to the second cavity (62) on the same side, a group of the condensation tube bundle (4) is installed in each of the two second cavities (62), and the hot well (3) is used to recover condensed water.

2. A water condenser according to claim 1, characterized in that: The partition plate (5) further comprises a third partition plate (53), wherein the third partition plate (53) is fixedly connected inside the hot well (3) and divides the hot well (3) into two mutually independent third cavities (63), wherein the third cavity (63) is in communication with the second cavity (62) on the same side.

3. A water condenser according to claim 2, characterized in that: The third partition plate (53) is inserted into the side wall of the hot well (3) below the liquid level and is provided with a communication hole (531), wherein the communication hole (531) is used to connect the two third cavities (63).

4. The water condenser according to claim 1, characterized in that: A first reinforcement component (8) is disposed in each of the first cavities (61), and the first reinforcement component (8) is used to support the first partition plate (51); The first reinforcement assembly (8) comprises a plurality of reinforcement rods (81), wherein the plurality of reinforcement rods (81) are interlaced to form a first frame (82), and the first frame (82) is respectively fixedly connected to the inner wall of the throat (1) and the first partition plate (51).

5. The water condenser according to claim 1, characterized in that: A second reinforcement component (9) is disposed in each of the second cavities (62), and the second reinforcement component (9) is used to support the second partition plate (52); The second reinforcement component (9) comprises a plurality of supporting partitions (91), each of the supporting partitions (91) being fixedly connected to the second partition plate (52) and the inner wall of the outer shell (2).

6. A water condenser according to claim 5, characterized in that: The condensation tube bundle (4) passes through a plurality of the supporting baffles (91) and is fixedly connected to the plurality of the supporting baffles (91).

7. The water condenser according to claim 2, characterized in that: A third reinforcement assembly (7) is arranged in each of the third cavities (63), the third reinforcement assembly (7) comprising a plurality of reinforcement ribs (71), the plurality of reinforcement ribs (71) being interlaced to form a second frame (72), the second frame (72) being fixedly connected to the inner wall of the hot well (3) and the third partition plate (53), respectively.

8. The water condenser according to claim 1, characterized in that: Each group of the condenser tube bundles (4) comprises two groups of condenser tubes (41), and one end of the two groups of condenser tubes (41) on the same side are connected to each other.

Images