A vibration-damping hybrid condenser

Abstract

This invention provides a vibration-damping hybrid condenser, comprising a condenser shell, multiple injection mechanisms, and baffles. The condenser shell contains interconnected condensation and condensate zones. The condensation zone has a steam inlet, and the condensate zone has a condensate outlet. Each injection mechanism has a nozzle positioned within the condensation zone. Baffles are positioned within the condensation zone, between adjacent injection mechanisms. The vibration-damping hybrid condenser provided by this invention, by placing baffles within the condensation zone and positioning them between adjacent injection mechanisms, with each side of the baffle corresponding to a nozzle of the adjacent injection mechanism, and the baffles being angled relative to the extension direction of the corresponding nozzles, allows the forces acting on the two side walls of the same baffle to cancel each other out, resulting in a stable state where the net force is zero. This avoids the problem of vibrations caused by water flow impact on the baffles, which are then transmitted to the vibration-damping hybrid condenser.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of condensing heat exchange, in particular to a vibration reduction type mixed condenser. BACKGROUND

[0002] With the gradual increase of power plant power, the size of its steam condenser is gradually increased, so it is urgent to improve the heat exchange capacity of the steam condenser. The traditional steam condenser can be divided into tube-shell type indirect condenser and mixed type condenser. Among them, the tube-shell type indirect condenser adopts the indirect heat exchange mode that the steam goes through the shell side and the cooling water goes through the tube side, the total heat exchange coefficient is low, and the volume is very large; and the mixed type condenser adopts the phase change heat exchange mode that the steam and the cooling water directly contact and condense, the heat exchange coefficient is very high, and the volume of the condenser can be effectively reduced.

[0003] The mixed condenser currently used in the power plant has a water chamber arranged at the middle position in the condenser in order to form a stable water film, the water chamber is supplied with water by an external pump device, and a nozzle is installed on the water chamber. The function of the nozzle is to form a water film by spraying water, so as to exchange heat with the steam efficiently.

[0004] However, since the film formation of the mixed condenser is realized by spraying high-speed water flow from the nozzle, the water flow impacts the baffle arranged on both sides of the spray to form a liquid film 6 with a certain thickness, so the baffle will vibrate under the impact of the water flow, and the vibration will be transmitted to the water chamber structure and the condenser shell, causing the condenser to vibrate. In addition, the formed liquid film 6 will also directly impact the condenser shell to produce a certain vibration; at the same time, the liquid film will also impact the water spraying plate structure below the water chamber to form vibration. This series of vibrations will be transmitted to the condenser footing position, so that the condenser has a large vibration level, which is not conducive to the vibration reduction and noise reduction of the equipment. SUMMARY

[0005] The embodiment of the present application provides a vibration reduction type mixed condenser to solve the problem that the baffle will vibrate under the impact of the water flow, and the vibration will be transmitted to the condenser shell, causing the condenser shell to vibrate.

[0006] The embodiment of the present application provides a vibration reduction type mixed condenser, which comprises:

[0007] A condenser shell, a condensing area and a condensate area are constructed in the condenser shell and are in communication with each other; the condensing area is provided with a steam inlet, and the condensate area is provided with a condensate outlet;

[0008] A plurality of spraying mechanisms, a nozzle is constructed on each spraying mechanism, and the nozzle is arranged in the condensing area;

[0009] The baffle is arranged in the condensing area between adjacent spray mechanisms, and the baffle is arranged at an angle to the extension direction of the corresponding nozzle.

[0010] The vibration-damping hybrid condenser further comprises a first vibration-damping damping layer wrapped around the outer surface of the condenser shell.

[0011] The vibration-damping mechanism is arranged at an angle to the extension direction of the baffle.

[0012] The vibration-damping mechanism comprises a first baffle corresponding to the nozzle of one of the spray mechanisms.

[0013] The baffle is arranged at an angle to the extension direction of the baffle.

[0014] The buffer layer is arranged between the buffer plate and the inner side wall of the condenser shell.

[0015] The vibration-damping hybrid condenser further comprises a first vibration-damping damping layer wrapped around the outer surface of the condenser shell.

[0016] The baffle comprises a first baffle corresponding to the nozzle of one of the spray mechanisms.

[0017] The first baffle is arranged at an angle to the extension direction of the corresponding nozzle.

[0018] The second baffle is arranged at an angle to the extension direction of the corresponding nozzle.

[0019] The first baffle and the second baffle are connected to the inner side wall of the spray mechanism through the connecting piece.

[0020] The vibration-damping hybrid condenser further comprises a second vibration-damping damping layer connected between the connecting piece and the inner side wall of the condenser shell.

[0021] According to the vibration-damping type mixed condenser provided by one embodiment of the present application, the connecting piece is provided with a first through hole, the second vibration-damping layer is provided with a second through hole corresponding to the first through hole, and the vibration-damping type mixed condenser further comprises a fixing piece which is arranged on the inner side wall of the condenser shell in sequence through the first through hole and the second through hole.

[0022] According to the vibration-damping type mixed condenser provided by one embodiment of the present application, the vibration-damping type mixed condenser further comprises:

[0023] A partition plate is arranged in the condenser shell, the partition plate divides the condenser shell into the condensing area and the condensate area, the partition plate is provided with a communication hole, and the condensing area communicates with the condensate area through the communication hole.

[0024] An elastic connecting piece is used to connect the partition plate to the inner side wall of the condenser shell.

[0025] According to the vibration-damping type mixed condenser provided by one embodiment of the present application, a plurality of partition plates are arranged in sequence and are stacked, and each partition plate is connected to the inner side wall of the condenser shell through the elastic connecting piece.

[0026] According to the vibration-damping type mixed condenser provided by one embodiment of the present application, the condensing area is provided with a gas extraction hole for extracting non-condensable gas, and the gas extraction hole communicates with the condensing area.

[0027] The vibration-damping type mixed condenser provided by the embodiment of the present application arranges a baffle plate in the condensing area and between adjacent spray mechanisms, and the two sides of the baffle plate correspond to the nozzles of the adjacent spray mechanisms, respectively. The baffle plate is arranged at an angle with the extension direction of the corresponding nozzle. Thus, the forces acting on the two side walls of the same baffle plate can be counteracted, and the baffle plate is in a stable state with a resultant force of zero. In this way, the problem that the baffle plate is vibrated due to water flow impact and the vibration is transmitted to the vibration-damping type mixed condenser is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0029] Figure 1 is the front view of the vibration-damping type mixed condenser provided by one embodiment of the present application;

[0030] Figure 2Figure 1 is a schematic diagram of a part of structure of a vibration-damping hybrid condenser provided by an embodiment of the present application;

[0031] Fig. 1 is a schematic diagram of a part of structure of a vibration-damping hybrid condenser provided by an embodiment of the present application; DETAILED DESCRIPTION

[0032] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0033] The present application provides a vibration-damping hybrid condenser, which is mainly used as a condenser. Figures 1 to 2 As shown in the figure, the vibration-damping hybrid condenser comprises a condenser shell 2, a plurality of injection mechanisms 5 and a baffle 15.

[0034] The condenser shell 2 is the main structure of the whole vibration-damping hybrid condenser and is the outer shell of the whole vibration-damping hybrid condenser. The condenser shell 2 is configured with a condensing area 13 and a condensate area 10. The condensing area 13 is in communication with the condensate area 10, and the condensing area 13 is generally located above the condensate area 10. The condensing area 13 is provided with a steam inlet 1 for introducing steam for condensing heat exchange. The condensate area 10 is provided with a condensate outlet 11, and the condensate area 10 is used in cooperation with the condensing area 13.

[0035] The injection mechanism 5 can adopt a water chamber structure, and the number of the injection mechanism 5 can be increased or decreased according to the cooling effect. In the embodiment, the injection mechanism 5 is provided with a plurality of injection mechanisms 5, each of which is configured with an injection flow channel, a corresponding nozzle 7 and a cooling water inlet. The injection flow channel is in communication with the nozzle 7 and the cooling water inlet, and the nozzle 7 is arranged in the condensing area 13.

[0036] The baffle plate 15 is arranged in the condensing area 13, the baffle plate 15 is located between adjacent spray mechanisms 5, both sides of the baffle plate 15 correspond to the nozzles 7 of the adjacent spray mechanisms 5 respectively, and the baffle plate 15 is arranged at an angle with the extension direction of the corresponding nozzle 7. That is, both sides of the baffle plate 15 are provided with a nozzle 7, and the cooling water sprayed by the nozzle 7 can be directly sprayed on both sides of the baffle plate 15, so that the cooling water quickly forms a liquid film 6 with a certain thickness on the surface of the baffle plate 15. Since the impact forces of the water flows formed by the two nozzles 7 adjacent to each other on the same baffle plate 15 are opposite, the vibrations formed by the two are also opposite, and the total vibration of the same baffle plate 15 is weakened or even zero, thereby reducing or even eliminating the vibration problem of the baffle plate 15 caused by the water flow impact. In the case that the spray mechanism 5 is provided with a plurality of corresponding baffle plates 15, the liquid films 6 are arranged in the condensing area 13 at intervals, so that the condensing area 13 is divided into a plurality of cooling channels.

[0037] The vibration-reducing type hybrid condenser utilizes direct contact phase change of steam and cooling water to carry out condensation heat exchange. A plurality of spray mechanisms 5 are arranged in the condensing area 13, the spray flow channels in the adjacent spray mechanisms 5 correspond to spray on the same baffle plate 15, the impact forces of the water flows formed by the two nozzles 7 on the same baffle plate 15 are opposite, so the vibrations formed by the two are also opposite, and the total vibration of the same baffle plate 15 is weakened or even zero, thereby reducing or even eliminating the vibration problem of the baffle plate 15 caused by the water flow impact. At the same time, the cooling water quickly forms a liquid film 6 with a certain thickness on the surfaces of both sides of the baffle plate 15. The liquid films 6 are arranged in the condensing area 13 at intervals, so that the condensing area 13 is divided into a plurality of cooling channels.

[0038] The cooling water enters the spray mechanism 5 from the cooling water inlet pipe, is sprayed out from the nozzles 7 arranged on the two side walls of the spray mechanism 5, and impacts on the baffle plates 15 arranged on both sides of each nozzle 7, so that under the action of the water flow self-extrusion force, the water flow forms a liquid film 6 with a certain thickness. The adjacent liquid films 6 constitute cooling channels for steam flow, the steam enters the condensing area 13 from the steam inlet 1, enters the cooling channels between the liquid films 6 after being divided, and in the flow process, carries out direct contact phase change condensation heat exchange with the cooling water on the liquid film 6, thereby forming condensed water. The final condensed water flows into the condensed water area 10, is pumped out by the condensed water pump through the condensed water outlet 11, the steam that does not complete condensation enters the condensing area 13 again through the condensed water area 10 for further condensation, and the non-condensable gas is pumped out by the external vacuum pump through the exhaust hole, thereby completing the process of steam condensation.

[0039] The vibration-damping type mixed condenser provided by the embodiment of the present application sets the baffle plate in the condensing area and sets the baffle plate between adjacent spray mechanisms, the two sides of the baffle plate correspond to the nozzles of the adjacent spray mechanisms respectively, and the baffle plate is set at an angle with the extension direction of the corresponding nozzles. Thus, the forces on the two sides of the baffle plate can be counteracted, and the baffle plate is in a stable state with a resultant force of zero, so that the problem that the baffle plate is vibrated due to the water flow impact and the vibration is transmitted to the vibration-damping type mixed condenser is avoided.

[0040] As shown in Figure 1 and Figure 2 , two spray channels and corresponding nozzles 7 are arranged in each spray mechanism 5. The two spray channels are connected to the same cooling water inlet to inject cooling water. The two nozzles 7 of each spray mechanism 5 are arranged to be inclined to one side respectively.

[0041] For example, in the embodiment, the left nozzle 7 is arranged towards the left baffle plate 15, and the right nozzle 7 is arranged towards the right baffle plate 15. Thus, the baffle plate 15 arranged between the adjacent two spray mechanisms 5 can correspond to the nozzles 7 of the adjacent spray mechanisms 5 respectively, and the baffle plate 15 is arranged at an angle with the extension direction of the corresponding two nozzles 7. The impact forces of the water flows formed by the two nozzles 7 on the same baffle plate 15 are opposite, so the vibrations formed by the two nozzles 7 are also opposite, and the vibrations are counteracted on the same baffle plate 15, so that the total vibration of the same baffle plate 15 is weakened or even zero, and the problem that the baffle plate 15 is vibrated due to the water flow impact is reduced or even eliminated.

[0042] In an embodiment, as shown in Figure 1 and Figure 2 , the vibration-damping type mixed condenser further comprises a damping mechanism. One end of the damping mechanism is connected to the inner side wall of the condenser shell 2, and the other end of the damping mechanism is arranged corresponding to at least one nozzle 7, and the damping mechanism is arranged at an angle with the extension direction of the baffle plate 15.

[0043] Thus, after the cooling water forms a liquid film 6 with a certain thickness along the two side surfaces of the baffle plate 15, the liquid does not impact the inner side wall of the condenser shell 2, but directly impacts the damping mechanism, so that the liquid film 6 impacts the damping mechanism to achieve damping, and the liquid film 6 does not directly impact the inner wall.

[0044] The damping mechanism comprises a buffer plate 3 and a buffer layer 4. The buffer plate 3 is used to directly contact the liquid film 6. One side of the buffer plate 3 is arranged corresponding to at least one nozzle 7, and the buffer plate is arranged at an angle with the extension direction of the baffle plate 15. The buffer layer 4 is arranged between the buffer plate 3 and the inner side wall of the condenser shell 2. The buffer plate 3 and the buffer layer 4 can achieve the purpose of secondary elimination of vibration transmission.

[0045] The buffer plate 3 is made of lightweight materials such as aluminum, titanium, or composite materials. It is suspended near the inner wall opposite the spray mechanism 5 by a built-in elastic buffer layer, and can even be suspended above it by vibration damping or springs. The buffer layer 4 can be made of materials or components with vibration reduction and isolation effects such as flexible springs and elastic damping. The built-in buffer layer 4 is connected to the buffer plate 3 and the condenser shell wall by bolts or welding.

[0046] In this embodiment, a buffer plate 3 is installed on the inner wall of the condenser shell in the direction of the liquid film 6 impact. The buffer plate 3 is connected to the shell by a built-in elastic buffer layer (buffer layer 4). Unlike the traditional mixing condenser where the liquid film 6 directly impacts the inner wall of the condenser shell, in this embodiment, the liquid film 6 will impact the buffer plate 3 instead of the inner wall of the condenser. The vibration generated by the impact will be weakened or even eliminated by the buffer layer 4, thereby reducing the energy transferred from the vibration of the liquid film 6 impact to the condenser shell.

[0047] In addition, the vibration-damping hybrid condenser also includes a first vibration-damping layer 14. The first vibration-damping layer 14 can be made of a vibration-damping material coating, and the first vibration-damping layer 14 is wrapped around the outer surface of the condenser shell 2. By applying vibration-damping material to the outer surface of the condenser shell 2, a secondary vibration-damping function is achieved, thereby greatly reducing the vibration problem caused by the impact of the liquid film 6.

[0048] like Figure 1 and Figure 2 As shown, the baffle 15 includes: a first baffle 151, a second baffle 152, and a connector 153.

[0049] The first deflector 151 corresponds to the nozzle 7 of one of the spraying mechanisms 5, and the end face of the first deflector 151 is angled to the extension direction of the corresponding nozzle 7. The second deflector 152 corresponds to the nozzle 7 of the other spraying mechanism 5, and the end face of the second deflector 152 is angled to the extension direction of the corresponding nozzle 7. The first deflector 151 and the second deflector 152 are connected to the inner wall of the spraying mechanism 5 by a connector 153.

[0050] Specifically, the baffle 15 adopts an integrated baffle structure. The first baffle 151, the second baffle 152, and the connecting member 153 are connected together. That is, the baffle 15 between two adjacent nozzles 7 is made into an integrated structure. Since the baffle 15 is integrated, its two side walls are impacted by the water flow from the corresponding nozzles 7. The flow rate and other flow states of each jet are basically the same. Therefore, the force and pressure pulsation acting on the baffle wall are also basically the same. Thus, the forces acting on the two side walls of the same baffle 15 can cancel each other out, so that the baffle 15 is in a stable state with zero net force. This avoids the problem of the baffle 15 vibrating due to the impact of water flow and transmitting it to the wall.

[0051] To further weaken and eliminate the transmission of vibration caused by water flow impacting the baffle plate 15, a second vibration damping layer 17 is installed between the integrated baffle plate 15 and the wall. The second vibration damping layer 17 can be a vibration damping spring, a damper, etc. The second vibration damping layer 17 is connected between the connector 153 and the inner wall of the condenser shell 2, thereby further reducing the transmission of vibration to the wall.

[0052] To ensure stability, the connector 153 has a first through hole, and the second vibration damping layer 17 has a second through hole corresponding to the first through hole. The fastener 16 (bolt) passes through the first and second through holes in sequence and is installed on the inner wall of the condenser shell 2. That is, the baffle plate is bolted to the inner wall of the condenser shell 2, and vibration damping elements such as elastic gaskets can also be arranged between the contact surfaces of the bolt and the baffle plate 15.

[0053] like Figure 1 and Figure 2 As shown, the condenser housing 2 is provided with a partition 9 and an elastic connector 8. The partition 9 can be a water spray plate, dividing the condenser housing into a condensation zone 13 and a condensate zone 10. The partition 9 is provided with connecting holes 18, through which the condensation zone 13 communicates with the condensate zone 10. Multiple connecting holes 18 can generally be provided, each located on the partition 9. The partition 9 is connected to the inner wall of the condenser housing 2 by the elastic connector 8.

[0054] Multiple baffles 9 can be provided as needed, and these baffles 9 are stacked sequentially. Each baffle 9 is connected to the inner wall of the condenser shell 2 via an elastic connector 8. A flexible connection is used between each baffle 9 and the condenser shell 2. Vibration damping elements (elastic connectors 8) such as damping springs are installed between the baffle 9 and the condenser shell 2. These elastic damping elements reduce the vibration generated when the baffle 9 is impacted by the liquid film 6, thus reducing or preventing the transmission of vibration to the condenser shell 2. Through these measures, a low-vibration design for the hybrid condenser is achieved from multiple perspectives.

[0055] In addition, the condensing zone 13 is provided with an evacuation port for discharging non-condensable gases. The evacuation port is connected to the condensing zone 13 and is used to remove non-condensable gases such as air that cannot be condensed from the steam, while maintaining the vacuum level in the mixing condenser.

[0056] Accordingly, the vibration-damping hybrid condenser also includes a vacuum pump (not shown), which is connected to the condensation zone 13 through an air extraction port and is used to extract non-condensable gases in conjunction with the air extraction port.

[0057] In summary, the vibration-damping hybrid condenser provided by this invention solves the problem of vibration transmission to the condenser shell caused by water flow impacting the baffle plate, liquid film directly impacting the condenser shell wall, and liquid film falling and impacting the water spray plate in traditional hybrid condensers, thus achieving low-vibration operation of the hybrid condenser. The integrated baffle plate structure, through the combined force of the water jets on both sides, minimizes or even eliminates the resultant force on the integrated baffle plate, and together with the second vibration-damping layer, effectively prevents the transmission of baffle plate vibration to the water chamber wall. The use of a buffer layer and an internal buffer layer effectively isolates vibration caused by the direct impact of the liquid film on the condenser shell wall. The external first vibration-damping layer further reduces the transmission of internal condenser vibration to the outside and to the condenser base.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A vibration-damping hybrid condenser, characterized by, The application relates to a shock-absorbing type mixed condenser. The condenser shell is provided with a condensing area and a condensate area which are communicated with each other; the condensing area is provided with a steam inlet, and the condensate area is provided with a condensate outlet; A plurality of injection mechanisms are arranged on the condenser shell, and each injection mechanism is provided with a nozzle arranged in the condensing area; A baffle is arranged in the condensing area between adjacent injection mechanisms, and the baffle is arranged at an angle with the extension direction of the nozzles corresponding to the adjacent injection mechanisms; The baffle comprises: A first baffle part corresponding to the nozzle of one of the injection mechanisms, and the end surface of the first baffle part is arranged at an angle with the extension direction of the nozzle; A second baffle part corresponding to the nozzle of another injection mechanism, and the end surface of the second baffle part is arranged at an angle with the extension direction of the nozzle; A connecting part connecting the first baffle part and the second baffle part to the inner side wall of the injection mechanism.

2. The vibration-damping hybrid condenser according to claim 1, wherein The shock-absorbing type mixed condenser further comprises: A shock-absorbing mechanism connected to the inner side wall of the condenser shell at one end, and arranged at an angle with the extension direction of the baffle and corresponding to at least one of the nozzles at the other end.

3. The vibration-damping hybrid condenser according to claim 2, wherein The shock-absorbing mechanism comprises: A buffer plate arranged at an angle with the extension direction of the baffle and corresponding to at least one of the nozzles at one side; A buffer layer arranged between the buffer plate and the inner side wall of the condenser shell.

4. The vibration-damping hybrid condenser according to claim 1, wherein The shock-absorbing type mixed condenser further comprises a first shock-absorbing damping layer wrapped on the outer surface of the condenser shell.

5. The vibration-damping hybrid condenser according to claim 1, wherein The shock-absorbing type mixed condenser further comprises a second shock-absorbing damping layer connected between the connecting part and the inner side wall of the condenser shell.

6. The vibration-damping hybrid condenser according to claim 5, wherein The connecting part is provided with a first through hole, the second shock-absorbing damping layer is provided with a second through hole corresponding to the first through hole, and the shock-absorbing type mixed condenser further comprises a fixing part penetrating the first through hole and the second through hole in sequence and arranged on the inner side wall of the condenser shell.

7. The vibration-damping hybrid condenser according to any one of claims 1 to 4, wherein The shock-absorbing type mixed condenser further comprises: A partition plate arranged in the condenser shell, the partition plate divides the condenser shell into the condensing area and the condensate area, and the partition plate is provided with a communication hole, and the condensing area is communicated with the condensate area through the communication hole; An elastic connecting part connecting the partition plate to the inner side wall of the condenser shell.

8. The vibration-damping hybrid condenser according to claim 7, wherein A plurality of partition plates are arranged in sequence and are connected to the inner side wall of the condenser shell through the elastic connecting part.

9. The vibration-damping hybrid condenser according to any one of claims 1 to 4, wherein The condensing area is provided with a gas extraction hole for extracting non-condensable gas, and the gas extraction hole is communicated with the condensing area.

Images