Evaporative condenser unit

Abstract

The application discloses an evaporative condenser unit, which comprises a condenser and a spraying device for spraying liquid to the condenser, and further comprises an anode substitution device capable of contacting with the spraying liquid sprayed by the spraying device and / or the spraying liquid to be sprayed, and the reducing property of the anode substitution device is higher than that of the part of the condenser contacting with the liquid. In the evaporative condenser unit, during the spraying process of the spraying device, the anode substitution device can contact with the spraying liquid, so that the anode substitution device can reduce the cathode ions in the spraying liquid, and the spraying liquid with reduced cathode ion content is less likely to cause corrosion of the condenser, thereby effectively prolonging the service life of the condenser. Therefore, the evaporative condenser unit can effectively solve the problem that the condenser is prone to corrosion.

Description

Technical Field

[0001] This invention relates to the field of condensation technology, and more specifically, to an evaporative condenser unit. Background Technology

[0002] Currently, a certain amount of cathode ions, such as Cl- and (OH)-, are released from the spray liquid. These cathode ions are prone to electrochemical reactions with the condenser material, thus corroding the condenser. The better the heat exchange effect and the larger (thinner) the heat exchange surface area per unit mass, the faster and more severe the corrosion.

[0003] Currently, the industry mainly addresses this issue by increasing the oxidation resistance of the coating materials themselves. However, due to process and transportation reasons, insufficient surface treatment at the edges is inevitable, which accelerates corrosion from there.

[0004] In conclusion, how to effectively solve the problem of condenser corrosion is an urgent issue that needs to be addressed by those skilled in the art. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide an evaporative condenser unit that can effectively solve the problem of easy corrosion of condensers.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] An evaporative condenser unit includes a condenser and a spray device for spraying liquid onto the condenser, and further includes an anode replacement device capable of contacting the spray liquid and / or the spray liquid to be sprayed by the spray device, wherein the reducing power of the anode replacement device is higher than that of the liquid-contact portion of the condenser.

[0008] In this evaporative condenser unit, during operation, the anode replacement device comes into contact with the spray liquid during the circulating spraying process. This allows the anode replacement device to reduce the cathode ions in the spray liquid. Spray liquid with reduced cathode ion content is less likely to cause condenser corrosion, thus effectively extending the condenser's lifespan. In summary, this evaporative condenser unit effectively solves the problem of condenser corrosion.

[0009] Preferably, the portion of the condenser tube near the refrigerant inlet is provided with the anode replacement device.

[0010] Preferably, the device further includes a fan for driving airflow through the condenser, wherein the mass distribution density of the anode replacement device located within the projection of the fan is greater than the mass distribution density of the anode replacement device located outside the projection of the fan along the axial direction of the fan.

[0011] Preferably, the anode replacement device is provided at each nozzle of the spraying device.

[0012] Preferably, each of the nozzles is aligned with the junction of the mesh-like anode replacement device located on the lower side of the spraying device.

[0013] Preferably, it further includes a liquid collection tank located below the condenser to receive the falling spray liquid, and the liquid collection tank and / or the liquid collection tank and the condenser are provided with the anode replacement device.

[0014] Preferably, a grid-shaped anode replacement device is provided between the liquid collection tank and the condenser.

[0015] Preferably, it further includes a gathering device capable of collecting and gathering the liquid sprayed by the spraying device, the gathering device having a collection port at which the anode replacement device is located.

[0016] Preferably, the condenser is provided with an anode replacement device in the form of a grid or a perforated plate.

[0017] Preferably, the device further includes a fan, and at least two of the anode replacement devices are a first annular anode replacement device and a second annular anode replacement device, wherein the second annular anode replacement device is located inside the first annular anode replacement device and both are coaxially arranged with the fan.

[0018] Preferably, the first annular anode replacement device and the second annular anode replacement device satisfy R1 / R2=(D2 / D1)^2; R1 and R2 represent the inner radius of the first annular anode replacement device and the inner radius of the second annular anode replacement device, respectively; D1 and D2 represent the radial thickness of the first annular anode replacement device and the radial thickness of the second annular anode replacement device, respectively.

[0019] Preferably, the outer diameter of the second annular anode replacement device is equal to the diameter of the fan inlet.

[0020] Preferably, the device further includes a conveying device for drawing liquid from the liquid collection tank to the spraying device, wherein the anode replacement device is provided at the inlet and / or outlet of the conveying device.

[0021] Preferably, the anode replacement device is a magnesium component. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of an evaporative condenser unit provided in an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of another evaporative condenser unit provided in an embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of another evaporative condenser unit provided in an embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of the structure of the mesh anode replacement device provided in an embodiment of the present invention;

[0027] Figure 5 A schematic diagram showing the distribution of the mesh anode replacement device and the nozzle provided in an embodiment of the present invention;

[0028] Figure 6 This is a schematic diagram of the annular anode replacement device provided in an embodiment of the present invention.

[0029] The following labels are shown in the attached diagram:

[0030] 1. Condenser; 2. Spray device; 3. Anode replacement device; 4. Fan; 5. Liquid collection tank; 6. Nozzle 21. Detailed Implementation

[0031] This invention discloses an evaporative condenser unit to effectively solve the problem of easy corrosion of condensers.

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Please see Figures 1-6 , Figure 1 This is a schematic diagram of the structure of an evaporative condenser unit provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of another evaporative condenser unit provided in an embodiment of the present invention; Figure 3This is a schematic diagram of another evaporative condenser unit provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the mesh anode replacement device provided in an embodiment of the present invention; Figure 5 A schematic diagram showing the distribution of the mesh anode replacement device and the nozzle provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the annular anode replacement device provided in an embodiment of the present invention.

[0034] In one specific embodiment, this embodiment provides an evaporative condenser unit, specifically, the evaporative condenser unit includes a condenser 1, a spray device 2, and an anode replacement device 3.

[0035] The condenser 1 has a heat exchange cavity inside for the flow of high-temperature fluid. When the high-temperature fluid passes through the condenser cavity, it conducts heat with the cavity wall of the condenser 1, so that the heat can be transferred to the outside of the condenser 1 through the cavity wall of the condenser 1. The heat can then be absorbed by objects outside the condenser 1, such as air, thereby achieving the effect of heat dissipation.

[0036] The spray device 2 sprays a spray liquid onto the condenser 1. When the spray liquid comes into contact with the outer wall of the condenser 1 or the air near the outer wall, it absorbs heat and evaporates, thereby rapidly cooling the outer wall of the condenser 1 and the air near the outer wall. The spray liquid is generally water, but it can also be other easily evaporating and heat-absorbing liquids.

[0037] The reducing power of the anode replacement device 3 is higher than that of the liquid-contact portion of the condenser 1, allowing the anode replacement device 3 to react more readily with cathode ions compared to the condenser 1. Furthermore, the anode replacement device 3 can come into contact with the spray liquid and / or the spray liquid to be sprayed from the spray device 2, enabling the spray liquid and / or the spray liquid to react more directly with the anode replacement device 3, thereby reducing the reaction between cathode ions and the exposed outer portion of the condenser 1.

[0038] It should be noted that the anode replacement device 3 can be a powder-type anode replacement device, or an anode replacement device 3 with a block-type, rod-type, mesh-type, or plate-type structure. Specifically, the anode replacement device 3 may be a magnesium component, as Mg (magnesium) reacts more readily with cathode ions than metals such as Al (aluminum), Cu (copper), and Fe (iron). The specific material can be selected based on the material of the condenser, ensuring that the reducing power of the anode replacement device 3 is higher than that of the liquid-contacting part of the condenser 1.

[0039] In this evaporative condenser unit, during operation, as the spraying device 2 circulates the spray liquid, the anode replacement device 3 comes into contact with the spray liquid. This allows the anode replacement device 3 to reduce the cathode ions in the spray liquid. Spray liquid with reduced cathode ion content is less likely to cause corrosion of the condenser 1, thus effectively extending the lifespan of the condenser 1. In summary, this evaporative condenser unit effectively solves the problem of easy corrosion of the condenser 1.

[0040] In one specific embodiment, this embodiment provides an evaporative condenser unit. Based on the above embodiment, preferably, an anode replacement device 3 is provided in the high-temperature zone of the condenser 1. Specifically, the anode replacement device 3 is provided on the portion of the condenser 1 tube near the refrigerant inlet, to more effectively address the problem of corrosion in the high-temperature zone of the condenser 1. The high-temperature zone of the condenser 1 is generally the upper part of the condenser, where the temperature gradually decreases from top to bottom. Alternatively, it could be the high-temperature refrigerant inlet of the condenser 1; specific measurements can be taken at multiple points during actual operation. Of course, in this embodiment, the anode replacement device 3 can also be provided in other locations.

[0041] One specific arrangement includes a fan 4 for driving airflow through the condenser 1. Along the axial direction of the fan 4, the mass distribution density of the anode replacement devices 3 located within the projection of the fan 4 is greater than that located outside the projection of the fan 4. "Within the projection" refers to the projection of the fan onto any plane aligned with the axial direction of the fan 4; if the projection is within the projection outline, it is considered "inside the projection," and if it is outside the projection outline, it is considered "outside the projection." This arrangement allows for more anode replacement devices 3 to react within the air inlet extension surface of the fan 4, accommodating the central reaction rate. Specifically, two annular anode replacement devices 3 can be provided, corresponding to the central portion of the condenser 1 and the outer portion of the condenser 1, respectively. The two annular anode replacement devices 3 are coaxially arranged, with their axial direction aligned with the cooling airflow direction. It should be noted that a tubular anode replacement device is also a type of annular anode replacement device; here, "annular" mainly refers to defining the cross-section along the cooling airflow direction as annular. See attached diagram for details. Figure 6At least two anode replacement devices 3 are a first annular anode replacement device and a second annular anode replacement device located inside the first annular anode replacement device, that is, the first annular anode replacement device surrounds the second annular anode replacement device, and both are coaxially arranged with the fan 4. The distribution requirement preferably satisfies R1 / R2 = (D2 / D1)^2; R1 and R2 represent the inner radii of the first and second annular anode replacement devices, respectively; D1 and D2 represent the radial thicknesses of the first and second annular anode replacement devices, respectively. For better alignment with the fan, it is preferable that the outer diameter of the second annular anode replacement device is equal to the diameter of the fan 4's air inlet.

[0042] This is because the evaporation rate within the coverage area of ​​the blower 4 diameter is different from that outside the coverage area. Within the blower 4 diameter, the liquid vaporizes and is carried away more quickly than outside the diameter. Relatively speaking, the heat exchange rate between the liquid and the pipe is faster, that is, the reaction rate is faster. The liquid has more contact with the static state, and at this time, more Cl- ions in the liquid will react. The reaction rate is different inside and outside the blower diameter. Therefore, using anode replacement devices 3 of the same mass density and size will result in different reaction times. That is, the reaction in the middle has ended, while there is still a reaction in the periphery. Through the above method, the lifespan of the anode replacement devices 3 inside and outside can be made to be more consistent.

[0043] In one specific embodiment, this embodiment provides an evaporative condenser unit, which, based on the above embodiment, is as follows: Figure 5 Preferably, the anode replacement device 3 is provided at the nozzle 21 of the spray device 2. Considering that the nozzle of the spray device 2 is generally circular, the corresponding anode replacement device 3 can be a ring structure, a circular mesh structure, etc. If a ring structure is used, it is preferred that the inner diameter is larger than the inner diameter of the nozzle and that it is coaxially arranged with the nozzle. Of course, a mesh anode replacement device 3 can also be provided. Specifically, each nozzle 21 can be aligned with each intersection point of the mesh anode replacement device, and the mesh anode replacement device is located on the lower side of the spray device 2.

[0044] In one specific embodiment, this embodiment provides an evaporative condenser unit, which, based on the above embodiment, is as follows: Figure 1 , 3 Preferably, it also includes a liquid collection tank 5 located below the condenser 1, and the liquid collection tank 5 and / or the liquid collection tank 5 and the condenser 1 are provided with the anode replacement device 3.

[0045] The space between the liquid collection tank 5 and the condenser 1 refers to the area between the liquid surface of the liquid collection tank 5 and the condenser 1. This ensures that the spray liquid falling from the condenser 1 must first pass through the anode replacement device 3 between the liquid surface of the liquid collection tank 5 and the condenser 1 to react before falling into the liquid collection tank 5. To prevent the anode replacement device 3 from blocking the spray liquid from falling into the liquid collection tank 5, the anode replacement device 3 between the liquid surface of the liquid collection tank 5 and the condenser 1 is preferably a mesh structure, or a perforated plate structure, etc. Preferably, a mesh-shaped anode replacement device 3 is provided between the liquid collection tank 5 and the condenser 1 to ensure sufficient reaction while not obstructing the cooling air and spray liquid.

[0046] The liquid collection tank 5 is equipped with the anode replacement device 3, meaning that the anode replacement device 3 is immersed in the liquid collection tank 5. For example, a rod-shaped anode replacement device 3 can be immersed in the liquid collection tank 5, or a mesh-shaped or perforated plate-shaped anode replacement device 3 can be immersed in the liquid in the liquid collection tank 5. "Immersed in the liquid collection tank 5" means partially immersed in the liquid in the liquid collection tank 5, or it can be completely immersed in the liquid in the liquid collection tank 5.

[0047] In one specific embodiment, this embodiment provides an evaporative condenser unit. Based on the above embodiment, it preferably further includes a collecting device capable of concentrating and collecting the liquid sprayed by the spraying device. The collecting device has a collecting port, and the anode replacement device 3 is located at the collecting port. This is because the liquid collection tank 5 has a large cavity area, which would result in an excessively large distribution area for the anode replacement device. The collecting device helps to concentrate the liquid towards the collecting port, and the anode replacement device 3 is located at the collecting port, thus reducing the volume of the anode replacement device 3 and enabling better reaction with the cathode ions in the sprayed liquid.

[0048] In one specific embodiment, this embodiment provides an evaporative condenser unit. Based on the above embodiment, preferably, an anode replacement device 3 in the form of a mesh or perforated plate is provided in the condenser 1, so as to be closer to the condenser 1 and to better replace the condenser 1 for the reduction reaction. The mesh or perforated plate anode replacement device 3 is provided to avoid generating greater resistance to the spray liquid and cooling air.

[0049] In one specific embodiment, this embodiment provides an evaporative condenser unit. Based on the above embodiment, the spray liquid is generally recycled, so it generally also includes a conveying device for drawing the liquid in the liquid collection tank to the spray device 2. In order to better react with the cathode ions in the spray liquid, it is preferable that an anode replacement device 3 is provided at the inlet and / or outlet of the conveying device.

[0050] Evaporative condenser units mainly utilize the phase change heat of external liquids to transfer heat from the system to the outside. They generally also include a shell, baffles, etc. The condenser 1 forms a loop for transferring heat from the system to the outside. This loop is not limited to pipe heat exchange, tube-fin heat exchange, or plate heat exchange. The spray device 2 includes a liquid driving device, liquid inlet, liquid flow channel, liquid outlet, etc.

[0051] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0052] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An evaporative condenser unit comprising a condenser and a spraying device for spraying liquid to the condenser, characterized in that, Further comprising anode substitution device capable of being contacted with the spraying liquid sprayed by the spraying device and / or the spraying liquid to be sprayed, the anode substitution device has higher reducibility than the reducibility of the condenser liquid contact part, wherein: Further comprising liquid collecting groove located at the lower side of the condenser to receive the falling spraying liquid, the liquid collecting groove and / or the anode substitution device between the liquid collecting groove and the condenser is provided with the anode substitution device in a grid shape, the anode substitution device between the liquid collecting groove and the condenser is provided with the anode substitution device in a grid shape or a perforated plate shape; And / or, the anode substitution device in a grid shape or a perforated plate shape is arranged in the condenser; And / or, further comprising a fan, the at least two anode substitution devices are respectively a first annular anode substitution device and a second annular anode substitution device, the second annular anode substitution device is located inside the first annular anode substitution device, and both are coaxially arranged with the fan; Further comprising a shell and a water baffle.

2. The evaporative condenser unit of claim 1, wherein, The condenser pipe body near the refrigerant inlet is provided with the anode substitution device.

3. The evaporative condenser unit of claim 1, wherein, Further comprising a fan for driving air to flow through the condenser, in the axial direction of the fan, the mass distribution density of the anode substitution device located in the projection of the fan is greater than the mass distribution density of the anode substitution device located outside the projection of the fan.

4. The evaporative condenser unit of claim 1, wherein, The anode substitution device is arranged at each nozzle of the spraying device.

5. The evaporative condenser unit of claim 4, wherein, Each of the nozzles is arranged in alignment with each intersection point of the anode substitution device in a grid shape located at the lower side of the spraying device.

6. The evaporative condenser unit of claim 1, wherein, Further comprising an aggregation device capable of concentrating the liquid sprayed by the spraying device, the aggregation device has an aggregation port, and the anode substitution device is arranged at the aggregation port.

7. The evaporative condenser unit of claim 1, wherein, The first annular anode substitution device and the second annular anode substitution device satisfy R1 / R2=(D2 / D1)^2; R1 and R2 respectively represent the inner radius of the first annular anode substitution device and the inner radius of the second annular anode substitution device; D1 and D2 respectively represent the radial thickness of the first annular anode substitution device and the radial thickness of the second annular anode substitution device.

8. The evaporative condenser unit of claim 7, wherein, The outer diameter of the second annular anode substitution device is equal to the diameter of the fan air inlet.

9. The evaporative condenser unit of claim 8, wherein, Further comprising a conveying device for pumping the liquid in the liquid collecting groove to the spraying device, the anode substitution device is arranged at the inlet and / or outlet of the conveying device.

10. The evaporative condenser unit of any one of claims 1-9, wherein, The anode substitution device is a magnesium piece.

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