Compact Hybrid Condenser

Abstract

The present invention provides a compact hybrid condenser, which relates to the technical field of condensers and includes: a main body, a cooling water tank, and an air extraction structure. The main body has a receiving cavity; the cooling water tank and the air extraction structure are arranged in the receiving cavity; the air extraction structure is connected to the bottom of the cooling water tank, and the air extraction structure has an air extraction cavity and an air extraction inlet, and the air extraction cavity communicates with the receiving cavity through the air extraction inlet; a spare air extraction hole and a self-sealing component are also arranged on the side of the air extraction structure, and the self-sealing component can close the spare air extraction hole under the drive of its own acting force, and the self-sealing component can open the spare air extraction hole when the sum of the pressure in the air extraction cavity and its own acting force is less than the pressure in the receiving cavity. When in a swaying environment, the compact hybrid condenser can increase the height of the cooling water level in the receiving cavity, improve the sufficient perfusion height, effectively avoid cavitation of the condensate pump in the swaying environment, and thus improve the anti-sway performance and safety stability of the system.

Description

Technical Field

[0001] The present invention relates to the technical field of condensers, and in particular to a compact mixing condenser. Background Art

[0002] A steam condenser is a heat exchange device that can cool high-temperature and high-pressure steam and achieve heat exchange. Currently, existing steam condensers can be divided into shell and tube condensers and hybrid condensers. Among them, the shell and tube condenser adopts an indirect heat exchange method, where high-temperature steam flows through the shell side and cooling water flows through the tube side. The high-temperature steam and cooling water do not come into direct contact. The total heat transfer coefficient of this type of condenser is low, and the volume is large. The hybrid condenser adopts a direct heat exchange method, where cooling water is sprayed into the high-temperature steam, and the two are in direct contact, thereby achieving heat exchange. The heat transfer coefficient of this type of condenser is very high, and it can effectively reduce the volume of the condenser.

[0003] In the related art, the steam condenser configured in the power plant is usually a mixed condenser. As the power generation of the power plant gradually increases, in order to achieve effective heat exchange, the size of the corresponding steam condenser in the power plant increases accordingly.

[0004] like Figure 1 and Figure 2 As shown, in the mixing condenser, high-temperature steam enters the condensing zone 2 through the steam inlet 1. External cooling water, driven by a water pump, enters the water storage tank 3 within the condensing zone 2 through the cooling water inlet 10. A nozzle 5 is provided on the side of the water storage tank 3. This allows the cooling water entering the water storage tank 3 to be sprayed into the condensing zone 2 through the nozzle 5, forming a stable water film 4. In the condensing zone 2, the cooling water directly contacts the high-temperature steam, achieving efficient heat exchange. The cooling water and steam, after heat exchange, then enter the exhaust zone through the through-holes 7 in the partition 6. The cooling water in the exhaust zone flows downward and reaches the water storage zone 8. Finally, the cooling water in the water storage zone 8 is discharged from the mixing condenser through the condensate outlet 9 by the external condensate pump. Simultaneously, the steam entering the exhaust zone enters the exhaust structure through the exhaust zone inlet 12. The steam in the exhaust structure, driven by the external exhaust pump, is discharged from the mixing condenser through the exhaust zone outlet 11.

[0005] However, the aforementioned conventional mixing condensers are primarily suitable for land-based power plants, where space is plentiful. The volume and height of the mixing condensers can be adjusted as needed during actual design and installation. To prevent cavitation in the condensate pump, conventional mixing condensers are equipped with a high water storage tank at the bottom. This ensures that the cooling water level 13 in the water storage area 8 is sufficiently high and away from the condensate pump. This results in a large overall volume and height for the mixing condenser.

[0006] For applications affected by marine conditions such as floating platforms in seawater, the condenser may be affected by the swaying factor, resulting in too low effective net positive suction head of the cooling water at the bottom of the hybrid condenser, and ultimately causing cavitation in the condensate pump. Moreover, different from on land, in these usage scenarios, the available space for equipment is limited, and the height space is restricted. The existing hybrid condensers are clearly not suitable for these usage occasions.

[0007] Therefore, in order to adapt to the swaying factor at sea and the limitation of the limited available space, it is necessary to provide a new hybrid condenser to meet the installation and usage requirements of marine equipment. Summary of the Invention

[0008] The present invention provides a compact hybrid condenser to solve the problem that the existing hybrid condensers cannot adapt to the swaying factor at sea and the limitation of the limited available space.

[0009] The present invention provides a compact hybrid condenser, comprising:

[0010] A body having an accommodation cavity;

[0011] A cooling water tank disposed in the accommodation cavity;

[0012] An air extraction structure disposed in the accommodation cavity, the air extraction structure being connected to the bottom of the cooling water tank, the air extraction structure having an air extraction cavity and an air extraction inlet, and the air extraction cavity communicating with the accommodation cavity via the air extraction inlet;

[0013] Wherein, a spare air extraction hole and a self-sealing component are further provided on the side of the air extraction structure. The spare air extraction hole is higher than the air extraction inlet in the height direction of the air extraction structure and is close to the cooling water tank. The self-sealing component can close the spare air extraction hole under the drive of its own acting force, and the self-sealing component can open the spare air extraction hole when the sum of the pressure in the air extraction cavity and its own acting force is less than the pressure in the accommodation cavity.

[0014] According to a compact hybrid condenser of the present invention, the self-sealing component includes a magnetic plugging piece and a rotating shaft. The rotating shaft is fixedly connected to the inner wall of the air extraction cavity, and the magnetic plugging piece is rotatably connected to the rotating shaft. The magnetic plugging piece can fit to the inner wall of the air extraction cavity and close the spare air extraction hole. Wherein, the self-acting force is the magnetic acting force exerted by the magnetic plugging piece on the inner wall of the air extraction cavity.

[0015] A compact hybrid condenser according to the present invention, the self-sealing component includes a sealing plate, an elastic member and a rotating shaft, the rotating shaft is fixedly connected to the inner wall of the air extraction chamber, the sealing plate is rotatably connected to the rotating shaft, the elastic member is connected to the sealing plate and the rotating shaft, and the elastic member can apply an elastic acting force to the sealing plate so that the sealing plate closes the standby air extraction hole, wherein the self-acting force is the elastic acting force applied by the elastic member to the sealing plate.

[0016] A compact hybrid condenser according to the present invention, the bottom of the cooling water tank is provided with spray holes communicating with the air extraction chamber.

[0017] A compact hybrid condenser according to the present invention, a partition is provided in the air extraction chamber, the partition divides the air extraction chamber into multiple regions, the partition is provided with steam through holes, and the multiple regions communicate with each other through the steam through holes.

[0018] A compact hybrid condenser according to the present invention, a diversion part is provided at a position of the partition close to the steam through hole, and the diversion part has an arc-shaped diversion surface for guiding the flow of steam.

[0019] A compact hybrid condenser according to the present invention, the partition is provided with a water spraying channel communicating with multiple regions.

[0020] A compact hybrid condenser according to the present invention, a first baffle is provided at the top of the air extraction structure, the first baffle is close to the spray hole and extends obliquely downward, the first baffle can divert the cooling water from the spray hole, a second baffle is provided at the bottom of the partition, the second baffle is close to the steam through hole and extends obliquely downward, and the second baffle can divert the cooling water from the steam through hole.

[0021] A compact hybrid condenser according to the present invention, the partition includes a first partition and a second partition, the first partition and the second partition are sequentially spaced apart in the height direction of the air extraction chamber, the first partition is provided with a first steam through hole, and the second partition is provided with a second steam through hole.

[0022] According to a compact hybrid condenser of the present invention, the first partition is located below the second partition. In the projection plane in the height direction of the air extraction structure, the second steam through hole is located on opposite sides of the air extraction inlet, and the first steam through hole is located outside the second steam through hole away from the air extraction inlet.

[0023] The compact hybrid condenser provided by the present invention includes: a main body, a cooling water tank, and an air extraction structure. Among them, the air extraction structure is provided with a standby air extraction hole and a self-sealing component. The self-sealing component can open the standby air extraction hole when the sum of the pressure in the air extraction chamber and its own acting force is less than the pressure in the accommodation chamber. Thus, when the internal and external pressure difference between the accommodation chamber and the air extraction chamber reaches a set condition, the self-sealing component can automatically open and close the standby air extraction hole.

[0024] When the compact hybrid condenser is in a normal environment, the standby air extraction hole is in a closed state, and the high-temperature steam entering the accommodation chamber can exchange heat and flow in a normal manner. When the compact hybrid condenser is in a swinging environment, the liquid level height of the cooling water in the accommodation chamber can be increased to provide a sufficient perfusion height, which can effectively prevent the condensate pump from cavitating in the swinging environment, thereby improving the anti-swing performance and safety stability of the system.

[0025] Moreover, the technical solution in this embodiment does not require increasing the overall size and height of the entire device, which can save the use space and installation space. In particular, it can be applied to the environment at sea full of swinging factors and with limited use space. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0027] Figure 1 is a schematic structural diagram of a hybrid condenser in the related art;

[0028] Figure 2 is Figure 1 a side view of the hybrid condenser shown in

[0029] Figure 3 is a schematic structural diagram of a compact hybrid condenser according to an embodiment of the present invention;

[0030] Figure 4 is Figure 3 an enlarged view of part P in

[0031] Figure 5 is Figure 3 a side view of the compact hybrid condenser shown in

[0032] Figure 6 is along Figure 3 a cross-sectional view taken along the A-A direction in

[0033] Figure 7 is a sectional view taken along the Figure 3 B-B direction in the figure;

[0034] Figure 8 is a sectional view taken along the Figure 3 C-C direction in the figure.

[0035] Reference numerals:

[0036] 10. Body; 11. Accommodation cavity; 12. Steam inlet; 13. Condensate outlet; 20. Cooling water tank; 21. Water storage cavity; 22. Water inlet pipe; 23. Nozzle; 24. Spray hole; 30. Air extraction structure; 31. Air extraction cavity; 32. Air extraction inlet; 33. Air extraction pipe; 34. Air extraction outlet; 35. Flow guiding part; 36. Water spraying channel; 41. Spare air extraction hole; 42. Self-sealing component; 51. First partition board; 52. Second partition board; 53. First steam through hole; 54. Second steam through hole; 61. First baffle plate; 62. Second baffle plate. Detailed implementation manners

[0037] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below with reference to the accompanying drawings in the present invention. Obviously, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art without making creative efforts based on the embodiments in the present invention belong to the scope of protection of the present invention.

[0038] In one embodiment according to the present invention, a compact hybrid condenser is provided. The compact hybrid condenser includes: a body, a cooling water tank and an air extraction structure, wherein the air extraction structure is provided with a spare air extraction hole and a self-sealing component. The compact hybrid condenser can be arranged on a seawater floating platform affected by marine conditions. When the condenser sways due to situations such as swaying in the external environment, the liquid level height of the cooling water after heat exchange in the body can be increased, so that the cooling water submerges part of the air extraction structure until the liquid level height of the cooling water reaches below the spare air extraction hole. At this time, the steam entering the body can enter the air extraction structure through the spare air extraction hole, which can ensure the normal operation of the condenser. Moreover, since the cooling water has a sufficient liquid level height, cavitation of the condensate pump can be avoided. The following will be combined with Figures 3 to 8 further describe the compact hybrid condenser in this embodiment.

[0039] Specifically, as Figure 3 shown, the compact hybrid condenser in this embodiment includes: a body 10, a cooling water tank 20 and an air extraction structure 30.

[0040] Among them, the main body 10 has a receiving cavity 11. Exemplarily, in the present embodiment, the main body 10 further includes a steam inlet 12 and a condensate outlet 13. The steam inlet 12 is located at the top of the main body 10, and the condensate outlet 13 is located at the bottom of the main body 10. Both the steam inlet 12 and the condensate outlet 13 communicate with the receiving cavity 11. External high-temperature steam can enter the receiving cavity 11 through the steam inlet 12. Moreover, the cooled water in the receiving cavity 11 after heat exchange can leave the receiving cavity 11 through the condensate outlet 13.

[0041] The cooling water tank 20 is arranged in the receiving cavity 11. Exemplarily, in the present embodiment, the cooling water tank 20 has a water storage cavity 21. The cooling water tank 20 is connected with a water inlet pipe 22, and the water inlet pipe 22 communicates with the water storage cavity 21. External cooling water can enter the water storage cavity 21 through the water inlet pipe 22 under the drive of external equipment. Moreover, a nozzle 23 is arranged on the side of the cooling water tank 20, and the cooling water in the water storage cavity 21 can be sprayed into the receiving cavity 11 of the main body 10 through the nozzle 23.

[0042] In a specific embodiment, as Figure 5 shown, the number of the nozzles 23 is multiple. The multiple nozzles 23 can be arranged at intervals along the length direction of the cooling water tank 20, and the multiple nozzles 23 can be arranged in two rows in the height direction of the cooling water tank 20. Of course, in other embodiments, according to the use requirements, the multiple nozzles can be arranged in other ways.

[0043] An air extraction structure 30 is arranged in the receiving cavity 11. The air extraction structure 30 is connected to the bottom of the cooling water tank 20. The air extraction structure 30 has an air extraction cavity 31 and an air extraction inlet 32. The air extraction cavity 31 communicates with the receiving cavity 11 through the air extraction inlet 32. Exemplarily, in the present embodiment, as Figure 4 shown, the air extraction structure 30 is connected with an air extraction pipe 33. The air extraction pipe 33 is at least partially inserted into the air extraction cavity 31 along the length direction of the air extraction structure 30. The air extraction pipe 33 has an air extraction outlet 34. The air extraction pipe 33 communicates with the air extraction cavity 31 through the air extraction outlet 34. The air extraction inlet 32 is located at the bottom of the air extraction structure 30. Part of the uncondensed steam and non-condensable gas in the receiving cavity 11 after heat exchange can enter the air extraction cavity 31 through the air extraction inlet 32. The air extraction pipe 33 can be connected to an air extraction pump, so that part of the uncondensed steam and non-condensable gas in the air extraction cavity 31 can enter the air extraction pipe 33 through the air extraction outlet 34 and thus leave the receiving cavity 11.

[0044] In one embodiment, in order to effectively extract air, the air extraction outlet 34 is located at the top of the air extraction pipe 33. For example, the axial direction of the air extraction pipe 33 is the same as the length direction of the air extraction structure 30, and the air extraction outlet 34 is arranged on the side wall of the air extraction pipe 33 and at the highest position.

[0045] Furthermore, in this embodiment, a spare air extraction hole 41 and a self-sealing component 42 are further provided on the side of the air extraction structure 30. The spare air extraction hole 41 is higher than the air extraction inlet 32 in the height direction of the air extraction structure 30 and is close to the cooling water tank 20. The self-sealing component 42 can close the spare air extraction hole 41 under the drive of its own acting force, and the self-sealing component 42 can open the spare air extraction hole 41 when the sum of the pressure in the air extraction chamber 31 and its own acting force is less than the pressure in the accommodation chamber 11.

[0046] It can be understood that the accommodation chamber 11 can communicate with the air extraction chamber 31 via the spare air extraction hole 41. When the sum of the self-acting force of the self-sealing component 42 and the pressure in the air extraction chamber 31 is greater than the pressure in the accommodation chamber 11, the self-sealing component 42 can always be in a state of closing the spare air extraction hole 41. When the sum of the self-acting force of the self-sealing component 42 and the pressure in the air extraction chamber 31 is less than the pressure in the accommodation chamber 11, the self-sealing component 42 will be in a state of opening the spare air extraction hole 41.

[0047] In practical applications, when the environment where the compact hybrid condenser is located is in a normal state, that is, when the condenser does not shake or the degree of shaking is small, the external high-temperature steam can enter the accommodation chamber 11 of the main body 10 through the steam inlet 12. At the same time, the cooling water enters the water storage chamber 21 of the cooling water tank 20 through the water inlet pipe 22 under the drive of an external driving device and is sprayed into the accommodation chamber 11 through the nozzle 23. The cooling water can form a water film in the accommodation chamber 11 and can come into full contact with the high-temperature steam, so as to achieve full heat exchange. After the heat exchange is completed, part of the uncondensed steam and non-condensable gas enter the air extraction chamber 31 of the air extraction structure 30 through the air extraction inlet 32. Finally, under the drive of an external air extraction device, part of the uncondensed steam and non-condensable gas in the air extraction chamber 31 enter the air extraction pipe 33 through the air extraction outlet 34 and thus leave the accommodation chamber 11. Correspondingly, the heat-exchanged cooling water reaches the bottom of the accommodation chamber 11 and, under the drive of a condensate pump, the cooling water is discharged from the accommodation chamber 11 through the condensate outlet 13.

[0048] In the above-mentioned normal environmental state, the cooling water at the bottom of the accommodation chamber 11 can be at a normal liquid level, that is, the liquid level height of the cooling water is below the air extraction inlet 32 of the air extraction structure 30. Moreover, in this working state, when the sum of the self-acting force of the self-sealing component 42 and the pressure in the air extraction chamber 31 is greater than the pressure in the accommodation chamber 11, the self-sealing component 42 can always be in a state of closing the spare air extraction hole 41.

[0049] When the environment where the compact hybrid condenser is located is in a swinging state, that is, when the degree of swinging of the condenser is large, it can cause the liquid level height of the heat-exchanged cooling water in the accommodation chamber 11 to rise until it reaches below the spare air extraction hole 41. For example, the liquid level height of the cooling water can reachAt position M in Figure 3 , at this time, the air extraction structure 30 is partially submerged in the cooling water. In this state, after the external high-temperature steam enters the accommodation chamber 11 of the main body 10 through the steam inlet 12, it can first exchange heat fully with the cooling water from the cooling water tank 20. After the heat exchange is completed, driven by the external air extraction equipment, the pressure in the air extraction chamber 31 of the air extraction structure 30 gradually decreases. During this process, the self-sealing component 42 is subjected to a force to open the standby air extraction hole 41 until the sum of the self-acting force of the self-sealing component 42 and the pressure in the air extraction chamber 31 is less than the pressure in the accommodation chamber 11, the self-sealing component 42 will open the standby air extraction hole 41, and part of the uncondensed steam and non-condensable gas enter the air extraction chamber 31 of the air extraction structure 30 through the standby air extraction hole 41. Finally, driven by the external air extraction equipment, the steam in the air extraction chamber 31 enters the air extraction pipeline 33 through the air extraction outlet 34 and thus leaves the accommodation chamber 11. Correspondingly, the heat-exchanged cooling water reaches the bottom of the accommodation chamber 11, and driven by the condensate pump, the cooling water is discharged from the accommodation chamber 11 through the condensate outlet 13.

[0050] In the state of the above-mentioned rocking environment, the cooling water at the bottom in the accommodation chamber 11 can be at a higher liquid level, that is, the liquid level height of the cooling water is raised to a position close to the standby air extraction hole 41. Moreover, in this working state, due to the air extraction effect of the air extraction pump, when the self-acting force of the self-sealing component 42 and the pressure in the air extraction chamber 31 are always less than the pressure in the accommodation chamber 11, the self-sealing component 42 can maintain the state of opening the standby air extraction hole 41.

[0051] Correspondingly, when the environment where the compact hybrid condenser is located returns from the rocking state to the normal state, the liquid level height of the cooling water in the accommodation chamber 11 can be reduced to the normal liquid level until the air extraction inlet 32 is fully exposed. After that, the internal and external pressure difference between the accommodation chamber 11 and the air extraction chamber 31 will decrease, so that the self-sealing component 42 closes the standby air extraction hole 41. Finally, the entire device resumes the normal air extraction process.

[0052] It can be seen that in this embodiment, by providing the standby air extraction hole 41 on the air extraction structure 30, in the state of the rocking environment, the liquid level height of the cooling water in the accommodation chamber 11 can be increased to improve the sufficient perfusion height, which can effectively avoid the cavitation of the condensate pump in the rocking environment, and then improve the anti-rocking performance and safety stability of the system.

[0053] Moreover, this setting method does not require increasing the overall size and height of the entire device, can save the use space and installation space, and is especially applicable to the environment at sea full of rocking factors and with limited use space.

[0054] ​In one embodiment, to achieve automatic closing of the standby air extraction hole 41, the self-closing component 42 includes a magnetic plugging piece and a rotating shaft. The rotating shaft is fixedly connected to the inner wall of the air extraction chamber 31, and the magnetic plugging piece is rotatably connected to the rotating shaft. The magnetic plugging piece can fit against the inner wall of the air extraction chamber 31 and close the standby air extraction hole 41. Among them, the self-acting force is the magnetic acting force exerted by the magnetic plugging piece on the inner wall of the air extraction chamber.

[0055] Specifically, the rotating shaft can be arranged to extend in the horizontal direction and is connected to the upper part of the standby air extraction hole 41 on the inner wall of the air extraction chamber 31. The magnetic plugging piece is made of a magnetic material, and the main body 10 is made of a metal material. The magnetic plugging piece is rotatably connected to the rotating shaft. Under the magnetic acting force, the magnetic plugging piece can fit against the inner wall of the air extraction chamber 31 and close the standby air extraction hole 41. In this embodiment, the magnetic acting force exerted by the magnetic plugging piece on the inner wall of the air extraction chamber 31 is the self-acting force of the self-closing component.

[0056] In practical applications, based on the power of the entire device, etc., through reasonable design and calculation, according to the magnitude of the acting force formed by the required internal and external pressure differences, a magnetic plugging piece material with a certain magnetic force can be selected to ensure that the magnetic plugging piece can act under the set conditions.

[0057] In another embodiment, to achieve automatic closing of the standby air extraction hole 41, the self-closing component 42 includes a plugging plate, an elastic member, and a rotating shaft. The rotating shaft is fixedly connected to the inner wall of the air extraction chamber 31, the plugging plate is rotatably connected to the rotating shaft, and the elastic member is connected to the plugging plate and the rotating shaft. The elastic member can exert an elastic acting force on the plugging plate to make the plugging plate close the standby air extraction hole 41. Among them, the self-acting force is the elastic acting force exerted by the elastic member on the plugging plate.

[0058] Specifically, the rotating shaft can be arranged to extend in the horizontal direction and is connected to the upper part of the standby air extraction hole 41 on the inner wall of the air extraction chamber 31. The plugging plate is rotatably connected to the rotating shaft. Under the elastic acting force of the elastic member, the plugging plate can fit against the inner wall of the air extraction chamber 31 and close the standby air extraction hole 41. In this embodiment, the elastic acting force exerted by the elastic member on the plugging plate is the self-acting force of the self-closing component 42.

[0059] Exemplarily, the elastic member can be a spring.

[0060] Of course, in other embodiments, the self-closing component 42 can also adopt other structures, and by means of the self-acting force of the self-closing component 42, the standby air extraction hole 41 can be closed or opened, without the need for external device control, and automatic regulation can be achieved, which has great advantages.

[0061] Further, in this embodiment, as Figure 3As shown, spray holes 24 communicating with the air extraction chamber 31 are provided at the bottom of the cooling water tank 20.

[0062] Thus, part of the cooling water entering the cooling water tank 20 can be sprayed into the air extraction chamber 31 through the spray holes 24, and heat exchange can be further achieved for some of the uncondensed steam and non-condensable gases in the air extraction chamber 31, thereby improving the heat exchange efficiency.

[0063] As Figure 3 shown, a partition plate is also provided in the air extraction chamber 31. The partition plate divides the air extraction chamber 31 into multiple regions, and steam through holes are provided on the partition plate, and the multiple regions are communicated through the steam through holes.

[0064] It can be understood that by setting the partition plate and connecting the multiple regions through the steam through holes, part of the uncondensed steam and non-condensable gases in the air extraction chamber 31 can flow along multiple steam channels, and after the cooling water enters the air extraction chamber 31, it can more fully come into direct contact with this part of the uncondensed steam and non-condensable gases and achieve heat exchange.

[0065] Furthermore, as Figure 3 shown, a diversion part 35 is provided at the position of the partition plate close to the steam through hole. The diversion part 35 has an arc-shaped diversion surface for guiding the steam flow.

[0066] Thus, under the guiding action of the arc-shaped diversion surface, the steam in the steam channel flows more smoothly during the flow process, and the air exchange efficiency can be improved.

[0067] In one embodiment, the partition plate is provided with a water spray channel 36 communicating with multiple regions. The water spray channel 36 can strengthen the flow of the cooling water between the multiple regions.

[0068] Exemplarily, the water spray channels 36 can be evenly spaced on the partition plate. Thus, the cooling water in the air extraction chamber 31 can flow in the air extraction chamber 31 through the multiple water spray channels 36, so that the cooling water can more fully come into contact with this part of the uncondensed steam and non-condensable gases, thereby improving the heat exchange efficiency.

[0069] As a way of implementation, as Figure 3 and Figure 4 shown, the partition plate includes a first partition plate 51 and a second partition plate 52. The first partition plate 51 and the second partition plate 52 are sequentially spaced at intervals in the height direction of the air extraction chamber 31. The first partition plate 51 is provided with a first steam through hole 53, and the second partition plate 52 is provided with a second steam through hole 54. The condensate outlet 13 is communicated with the air extraction outlet 34 of the air extraction pipe 33 through the first steam through hole 53 and the second steam through hole 54.

[0070] It can be understood that in this embodiment, the number of partition plates is two, and the two partition plates are arranged at intervals in the height direction of the air extraction chamber 31. The two partition plates roughly divide the air extraction chamber 31 into three regions, and the three regions are communicated via the first steam through-hole 53 and the second steam through-hole 54.

[0071] Thus, part of the uncondensed steam and non-condensable gas entering the air extraction inlet 32 can enter the air extraction outlet 34 via the first steam through-hole 53 and the second steam through-hole 54.

[0072] Furthermore, the first partition plate 51 is located below the second partition plate 52. In the projection plane in the height direction of the air extraction structure 30, the second steam through-hole 54 is located on opposite sides of the air extraction inlet 32, and the first steam through-hole 53 is located outside the second steam through-hole 54 away from the air extraction inlet 32.

[0073] For example, as Figure 6 、 Figure 7 and Figure 8 shown, the air extraction inlets 32 are arranged at intervals along the length direction of the air extraction structure 30 at the bottom of the air extraction structure 30, and the air extraction inlets 32 roughly form a row, and this row of air extraction inlets 32 is roughly located at the central position of the bottom of the air extraction structure 30. The first steam through-holes 53 are arranged at intervals along the length direction of the air extraction structure 30 on the first partition plate 51, and the first steam through-holes 53 roughly form two rows, and the two rows of first steam through-holes 53 are roughly located on both sides in the width direction of the first partition plate 51. The second steam through-holes 54 are arranged at intervals along the length direction of the air extraction structure 30 on the second partition plate 52, and the second steam through-holes 54 roughly form two rows, and the two rows of second steam through-holes 54 are roughly located on both sides in the width direction of the second partition plate 52.

[0074] Moreover, in the projection plane in the height direction of the air extraction structure 30, that is, looking down from the top of the air extraction structure 30, the second steam through-hole 54 is located on opposite sides of the air extraction inlet 32, and the first steam through-hole 53 is located outside the second steam through-hole 54 away from the air extraction inlet 32.

[0075] It can be understood that by arranging the first steam through-hole 53, the second steam through-hole 54 and the air extraction inlet 32 in a staggered manner, the flow mode of part of the uncondensed steam and non-condensable gas in the air extraction chamber 31 can be changed into a zigzag flow form, so that it can contact the cooling water as much as possible, and thus heat exchange can be realized.

[0076] Of course, in other embodiments, in order to improve the heat exchange efficiency, more partition plates and more steam through-holes arranged in a staggered manner can also be provided.

[0077] Furthermore, in order to effectively guide the flow direction of the cooling water, a first baffle 61 is provided at the top of the air extraction structure 30. The first baffle 61 is close to the spray holes 24 and extends obliquely downward. The first baffle 61 can divert the cooling water from the spray holes 24. A second baffle 62 is provided at the bottom of the partition plate. The second baffle 62 is close to the steam through holes and extends obliquely downward. The second baffle 62 can divert the cooling water from the steam through holes.

[0078] Specifically, as Figure 3 shown, the first baffle 61 is generally located below the spray holes 24, and the side of the first baffle 61 facing the spray holes 24 extends obliquely downward. The cooling water entering the air extraction chamber 31 through the spray holes 24 can fall onto the first baffle 61. Thus, with the help of the first baffle 61, the cooling water from the spray holes 24 can be guided.

[0079] In addition, flow-through holes can be provided on the first baffle 61. Thus, the non-condensable gas entering from the standby air extraction holes 41 can pass through the first baffle 61 with lower resistance and thus enter the air extraction pipeline 33 more conveniently.

[0080] The second baffle 62 is generally located below the second steam through hole 54, and the side of the second baffle 62 facing the second steam through hole 54 extends obliquely downward. The cooling water flowing downward through the second steam through hole 54 can fall onto the second baffle 62. Thus, with the help of the second baffle 62, the cooling water in the second steam through hole 54 can be guided.

[0081] It can be seen that the compact hybrid condenser in this embodiment has the following advantages:

[0082] The compact hybrid condenser in this embodiment includes: a main body, a cooling water tank and an air extraction structure. Among them, the air extraction structure is provided with standby air extraction holes and a self-sealing component. The self-sealing component can open the standby air extraction holes when the sum of the pressure in the air extraction chamber and its own acting force is less than the pressure in the accommodation chamber. Thus, when the internal and external pressure difference between the accommodation chamber and the air extraction chamber reaches the set condition, the self-sealing component can automatically open and close the standby air extraction holes.

[0083] When the compact hybrid condenser is in a normal environment, the standby air extraction holes are in a closed state, and the high-temperature steam entering the accommodation chamber can exchange heat and flow in a normal manner. When the compact hybrid condenser is in a rocking environment, the liquid level height of the cooling water in the accommodation chamber can be increased, and a sufficient perfusion height can be provided, which can effectively avoid cavitation of the condensate pump in the rocking environment, thereby improving the anti-rocking performance and safety stability of the system.

[0084] Moreover, the technical solution in this embodiment does not require an increase in the overall size and height of the entire device, which can save the usage space and installation space, and is especially applicable to the environment at sea full of swaying factors and with limited usage space.

[0085] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art can understand and implement it without creative efforts.

[0086] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments or equivalently replace some of the technical features. However, these modifications or replacements 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 compact hybrid condenser, characterized in that, Comprising: A body having a receiving cavity; A cooling water tank disposed in the receiving cavity; An air extraction structure disposed in the receiving cavity, the air extraction structure being connected to the bottom of the cooling water tank, the air extraction structure having an air extraction cavity and an air extraction inlet, and the air extraction cavity communicating with the receiving cavity via the air extraction inlet; Wherein, a spare air extraction hole and a self-sealing component are further provided on the side of the air extraction structure, the spare air extraction hole is higher than the air extraction inlet in the height direction of the air extraction structure and is close to the cooling water tank, the self-sealing component can close the spare air extraction hole under the drive of its own acting force, and the self-sealing component can open the spare air extraction hole when the sum of the pressure in the air extraction cavity and its own acting force is less than the pressure in the receiving cavity.

2. The compact hybrid condenser according to claim 1, wherein The self-sealing component includes a magnetic plugging piece and a rotating shaft, the rotating shaft is fixedly connected to the inner wall of the air extraction cavity, the magnetic plugging piece is rotatably connected to the rotating shaft, the magnetic plugging piece can fit to the inner wall of the air extraction cavity and close the spare air extraction hole, wherein, the own acting force is the magnetic acting force exerted by the magnetic plugging piece on the inner wall of the air extraction cavity.

3. The compact hybrid condenser according to claim 1, characterized in that, The self-sealing component includes a plugging plate, an elastic member and a rotating shaft, the rotating shaft is fixedly connected to the inner wall of the air extraction cavity, the plugging plate is rotatably connected to the rotating shaft, the elastic member is connected to the plugging plate and the rotating shaft, and the elastic member can exert an elastic acting force on the plugging plate to make the plugging plate close the spare air extraction hole, wherein, the own acting force is the elastic acting force exerted by the elastic member on the plugging plate.

4. The compact hybrid condenser according to claim 1, characterized in that, The bottom of the cooling water tank is provided with spray holes communicating with the air extraction cavity.

5. The compact hybrid condenser according to claim 4, characterized in that, A partition is provided in the air extraction cavity, the partition divides the air extraction cavity into multiple regions, and the partition is provided with steam through holes, and the multiple regions communicate with each other via the steam through holes.

6. The compact hybrid condenser according to claim 5, characterized in that, A diversion portion is provided at a position of the partition close to the steam through hole, and the diversion portion has an arc-shaped diversion surface for guiding the flow of steam.

7. The compact hybrid condenser according to claim 5, characterized in that, The partition is provided with a water spraying channel communicating with multiple regions.

8. The compact hybrid condenser according to claim 5, wherein A first baffle is provided at the top of the air extraction structure, the first baffle is close to the spray hole and extends obliquely downward, the first baffle can divert the cooling water from the spray hole, and a second baffle is provided at the bottom of the partition, the second baffle is close to the steam through hole and extends obliquely downward, and the second baffle can divert the cooling water from the steam through hole.

9. The compact hybrid condenser according to claim 5, wherein, The partition includes a first partition and a second partition, the first partition and the second partition are sequentially spaced apart in the height direction of the air extraction cavity, the first partition is provided with a first steam through hole, and the second partition is provided with a second steam through hole.

10. The compact hybrid condenser according to claim 9, wherein, The first partition is located below the second partition, in the projection plane in the height direction of the air extraction structure, the second steam through hole is located on opposite sides of the air extraction inlet, and the first steam through hole is located outside the second steam through hole away from the air extraction inlet.

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