An evaporative condenser unit

Abstract

An embodiment of the present invention provides an evaporative condenser unit, which is used to detect the loss state of the anode replacement device in the evaporative condenser unit in real time to avoid damage to the condenser in the evaporative condenser unit. The evaporative condenser unit in the embodiment of the present invention includes a condenser, a spraying device for spraying liquid onto the condenser, and a spraying liquid collection tank located below the condenser. It further includes an anode replacement device in contact with the spraying liquid sprayed by the spraying device and / or the spraying liquid to be sprayed. The anode replacement device is internally provided with a piezoelectric device, and the piezoelectric signal output by the piezoelectric device changes as the material of the anode replacement device is consumed, so as to monitor the remaining amount or loss amount of the material of the anode replacement device. Among them, the reducibility of the anode replacement device material is stronger than that of the part of the condenser in contact with the liquid.

Description

Technical Field

[0001] The present invention relates to the technical field of condensation, and more specifically, to an evaporative condenser unit. Background Art

[0002] Currently, since a certain amount of cathode ions, such as Cl- and (OH)-, will be released in the spray liquid; this part of cathode ions is liable to undergo an electrochemical reaction with the condenser material, resulting in the loss of the condenser; and the better the heat exchange effect and the larger (thinner) the heat transfer surface area per unit mass, the faster and more severe its loss.

[0003] Currently, the industry mainly solves this problem by increasing the oxidation resistance of materials such as spraying, but due to reasons such as process and transportation, it is inevitable that the surface treatment of the edge part is insufficient, and the loss accelerates from this part.

[0004] And how to effectively solve the loss problem of the condenser is an urgent problem that needs to be solved by those skilled in the art. Summary of the Invention

[0005] An embodiment of the present invention provides an evaporative condenser unit capable of real-time detecting the loss state of the anode replacement device in the evaporative condenser unit.

[0006] A first aspect of an embodiment of the present invention provides an evaporative condenser unit, including a condenser, a spray device for spraying liquid onto the condenser, and a spray liquid collection tank located below the condenser. The evaporative condenser unit further includes an anode replacement device in contact with the spray liquid sprayed by the spray device and / or the spray liquid to be sprayed. The anode replacement device is internally provided with a piezoelectric device, and the piezoelectric signal output by the piezoelectric device changes as the material of the anode replacement device is consumed, so as to monitor the remaining amount or loss amount of the material of the anode replacement device, wherein the reducibility of the material of the anode replacement device is stronger than that of the exposed material of the condenser.

[0007] Preferably, the anode replacement device is internally provided with a sealed cavity, and the cross-sectional area of the sealed cavity is smaller than the cross-sectional area of the piezoelectric device, so that the inner wall of the anode replacement device continuously presses the piezoelectric device.

[0008] Preferably, the outer wall of the anode replacement device is wrapped with a non-sealed elastic material. The anode replacement device is internally provided with a sealed cavity, and the cross-sectional area of the sealed cavity is not larger than the cross-sectional area of the piezoelectric device. The elastic material continuously presses the anode replacement device, so that the inner wall of the anode replacement device continuously presses the piezoelectric device, wherein the reducibility of the elastic material is weaker than that of the material of the anode replacement device.

[0009] Preferably, the anode replacement device has a built-in sealed cavity, in which a piezoelectric device and a metal shrapnel adjacent to the piezoelectric device are fixedly arranged. The first end of the metal shrapnel is fixed inside the anode replacement device, and the second end is fixed inside a fixed block, such that the metal shrapnel is elastically deformed and is in a non-contact state with the piezoelectric device. Herein, the fixed block is fixedly connected to the anode replacement device, and the reducibility of the fixed block material is weaker than that of the anode replacement device material.

[0010] Preferably, when the anode replacement device is consumed to the extent that the first end of the metal shrapnel is ejected, the metal shrapnel strikes the piezoelectric device, causing a sudden change in the piezoelectric signal output by the piezoelectric device.

[0011] Preferably, the piezoelectric device includes a piezoelectric material and an electrode. Herein, the electrode is externally connected to a current or voltage measuring device. When the anode replacement device is consumed to the extent that the first end of the metal shrapnel is ejected, the current or voltage measuring device can measure the sudden change in current or voltage.

[0012] Preferably, the piezoelectric device is arranged at the position where the anode replacement device is finally consumed.

[0013] Preferably, if the anode replacement device is in complete contact with the spray liquid, the position where the anode replacement device is finally consumed is the relative geometric center of the anode replacement device.

[0014] Preferably, if the anode replacement device is not in complete contact with the spray liquid, the position where the anode replacement device is finally consumed is one end of the anode replacement device that is far from the part in contact with the spray liquid.

[0015] Preferably, if the anode replacement device is arranged in different temperature ranges, the position where the anode replacement device is finally consumed is the position arranged in the low-temperature region.

[0016] Preferably, if part of the surface of the anode replacement device is subjected to oxidation resistance treatment or insulation treatment, the position where the anode replacement device is finally consumed is the position subjected to oxidation resistance treatment or insulation treatment.

[0017] In the second aspect of the embodiments of the present application, an evaporative condenser unit is provided, which includes a condenser, a spraying device for spraying liquid onto the condenser, and a spraying liquid collection tank located below the condenser. It further includes an anode replacement device that comes into contact with the sprayed spraying liquid and / or the spraying liquid to be sprayed by the spraying device. The anode replacement device is internally provided with a piezoelectric device and a processor electrically connected to the piezoelectric device. Wherein, the piezoelectric signal output by the piezoelectric device changes as the material of the anode replacement device is consumed, so as to monitor the remaining amount or loss amount of the material of the anode replacement device. The reducibility of the material of the anode replacement device is stronger than that of the material of the part of the condenser in contact with the liquid.

[0018] The processor is configured to:

[0019] Obtain the piezoelectric signal output by the piezoelectric device and a threshold piezoelectric signal, wherein the threshold piezoelectric signal is used to indicate that the loss amount of the material of the anode replacement device is in a critical state;

[0020] If the piezoelectric signal approaches the threshold piezoelectric signal, an alarm message is sent to prompt replacement or supplementation of the anode replacement device.

[0021] Preferably, the anode replacement device is internally provided with a sealed cavity. The piezoelectric device is fixedly arranged in the sealed cavity, and a metal elastic sheet is arranged adjacent to the piezoelectric device. The first end of the metal elastic sheet is fixed inside the anode replacement device, and the second end is fixed inside a fixed block, so that the metal elastic sheet presents an elastic deformation, and the metal elastic sheet is in a non-contact state with the piezoelectric device. Wherein, the fixed block is fixedly connected to the anode replacement device, and the reducibility of the material of the fixed block is weaker than that of the material of the anode replacement device.

[0022] Preferably, when the anode replacement device is consumed until the first end of the metal elastic sheet is ejected, the metal elastic sheet strikes the piezoelectric device, causing a sudden change in the piezoelectric signal output by the piezoelectric device.

[0023] Preferably, the piezoelectric device includes a piezoelectric material and an electrode. The electrode is externally connected to a current or voltage measuring device. When the anode replacement device is consumed until the first end of the metal elastic sheet is ejected, the current or voltage measuring device can measure a sudden change in current or voltage.

[0024] Preferably, an operational amplifier, a band-pass filter circuit, and a data acquisition A / D converter are also connected between the processor and the piezoelectric device;

[0025] The band-pass filter circuit is used to filter out interference signals;

[0026] The operational amplifier is used to amplify the piezoelectric signal passing through the band-pass filter;

[0027] The data acquisition A / D converter is used to convert the piezoelectric signal into a digital signal;

[0028] The processor is further used for:

[0029] Monitoring the sudden change of the current or voltage, and when the sudden change of the current or voltage is monitored, sending an alarm message to prompt replacement or supplementation of the anode replacement device.

[0030] As can be seen from the above technical solutions, the embodiments of the present invention have the following advantages:

[0031] In the embodiments of the present application, a piezoelectric device is built into the anode replacement device, and the piezoelectric signal output by the piezoelectric device changes as the material of the anode replacement device is consumed. Therefore, the consumption state of the anode replacement device can be obtained through the piezoelectric signal output by the piezoelectric device, thereby realizing real-time monitoring of the consumption state of the anode replacement device. Description of the Drawings

[0032] Figure 1 It is a schematic diagram of an embodiment of an evaporative condenser unit in the embodiments of the present application;

[0033] Figure 2 It is a schematic diagram of a structure of an anode replacement device and a piezoelectric device in the embodiments of the present application;

[0034] Figure 3 It is another schematic diagram of a structure of an anode replacement device and a piezoelectric device in the embodiments of the present application;

[0035] Figure 4 It is another schematic diagram of a structure of an anode replacement device and a piezoelectric device in the embodiments of the present application;

[0036] Figure 5 It is another schematic diagram of a structure of an anode replacement device and a piezoelectric device in the embodiments of the present application;

[0037] Figure 6 It is another schematic diagram of an embodiment of an evaporative condenser unit in the embodiments of the present application;

[0038] Figure 7 It is another schematic diagram of an embodiment of an evaporative condenser unit in the embodiments of the present application;

[0039] Figure 8 It is another schematic diagram of an embodiment of an evaporative condenser unit in the embodiments of the present application;

[0040] Figure 9 It is a schematic diagram of a structure of an anode replacement device in the embodiments of the present application;

[0041] Figure 10 Another schematic diagram of the evaporative condenser unit in the embodiment of the present application;

[0042] Figure 11 Schematic diagram of the connection between the processor, piezoelectric device, operational amplifier, band-pass filter circuit, and data acquisition A / D converter in the embodiment of the present application.

[0043] The markings in the drawings are as follows:

[0044] Condenser 1, spraying device 2, anode replacement device 3, piezoelectric device 4, spraying liquid collection tank 5, sealed cavity 6, elastic material 7, metal spring piece 8, fixing block 9, oxide layer or insulating layer 10, processor 11. Detailed implementation manners

[0045] The embodiment of the present invention provides an evaporative condenser unit, which is used to detect the loss state of the anode replacement device in the evaporative condenser unit in real time, so as to avoid damaging the condenser in the evaporative condenser unit.

[0046] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0047] The terms "first", "second", "third", "fourth", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. It should be understood that such used data can be interchanged under appropriate circumstances, so that the embodiments described here can be implemented in an order different from that shown or described here. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0048] In an evaporative condenser unit, a condenser is generally provided. The condenser has a heat exchange chamber inside for a high-temperature fluid to flow through. When the high-temperature fluid passes through the condenser chamber, heat conduction occurs between the fluid and the condenser chamber wall, enabling heat to be transferred through the condenser chamber wall to the outside of the condenser. As a result, the heat can be absorbed by objects outside the condenser, such as air, thus achieving a heat dissipation effect. During the operation of the condenser, to accelerate the heat dissipation of the high-temperature fluid by the condenser, a spraying device is generally provided above the condenser to spray a spraying liquid. When the spraying liquid encounters the condenser, a phase change occurs and heat is dissipated.

[0049] However, in actual use, it is found that the cathode ions in the spraying liquid are prone to react with the externally leaking materials of the condenser, resulting in the loss of the condenser. To avoid the loss of the condenser, an anode replacement device can be provided in the evaporative condenser unit. Among them, the reducibility of the material of the anode replacement device is stronger than that of the externally exposed material of the condenser, so that the anode replacement device preferentially reacts with the cathode ions in the spraying liquid to avoid the loss of the condenser.

[0050] However, how to monitor the loss state of the anode replacement device to avoid the loss of the condenser when the anode replacement device is completely consumed has become an urgent problem to be solved.

[0051] To address this problem, an embodiment of the present application proposes an evaporative condenser unit for real-time monitoring of the loss state of the anode replacement device to avoid the loss of the condenser.

[0052] The following is a detailed description:

[0053] Please refer to Figure 1 , the evaporative condenser unit includes a condenser 1, a spraying device 2, an anode replacement device 3, and a piezoelectric device 4 and a spraying liquid collection tank 5 provided inside the anode replacement device.

[0054] Among them, a heat exchange chamber is formed inside the condenser 1 for a high-temperature fluid to flow through. When the high-temperature fluid passes through the condenser chamber, heat conduction occurs between the fluid and the chamber wall of the condenser 1, enabling heat to be transferred through the chamber wall of the condenser 1 to the outside of the condenser 1. As a result, the heat can be absorbed by objects outside the condenser 1, such as air, thus achieving a heat dissipation effect.

[0055] The spray device 2 therein is used to spray the spray liquid onto the condenser 1. When the spray liquid contacts the outer wall of the condenser 1 or the air near the outer wall, it will absorb heat and evaporate, thereby enabling the outer wall of the condenser 1 and the air near the outer wall to cool down rapidly. Generally, the spray liquid is water, and of course, it can also be other liquids that are easy to evaporate and absorb heat. To avoid wasting the spray liquid, a spray liquid collection tank 5 is generally provided below the spray device and the condenser to collect the spray liquid that has not undergone a phase change after contacting the outer wall of the condenser 1 or the air near the outer wall.

[0056] Moreover, the reducibility of the material of the anode replacement device 3 is higher than that of the exposed material of the condenser 1, so that the anode replacement device 3 can react with the cathode ions in the spray liquid more easily than the condenser 1. Since the anode replacement device 3 can contact the spray liquid sprayed by the spray device 2 and / or the spray liquid to be sprayed, the cathode ions in the spray liquid sprayed by the spray device 2 and / or the spray liquid to be sprayed can react more directly with the anode replacement device 3, thereby reducing the reaction between the cathode ions in the spray liquid and the exposed material of the condenser 1 and avoiding the loss of the condenser.

[0057] 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 structures such as block type, rod type, net type, plate type, etc. A specific anode replacement device 3 is a magnesium part. Mg (magnesium) is more likely to react with the cathode ions in the spray liquid than metals such as Al (aluminum), Cu (copper), and Fe (iron). The material of the anode replacement device can be specifically selected according to the material of the condenser to meet the requirement that the reducibility of the material of the anode replacement device 3 is higher than that of the exposed material of the condenser 1.

[0058] In addition, it should be noted that the anode replacement device 3 only needs to be able to contact the spray liquid sprayed by the spray device, and the position of the anode replacement device 3 in the evaporative condenser unit is not specifically limited here.

[0059] Furthermore, in order to monitor the loss state of the anode replacement device 3 in real time, a piezoelectric device 4 for detecting the loss state of the anode replacement device 3 is also built into the anode replacement device 3 in the embodiment of the present application.

[0060] Among them, the piezoelectric signal output by the piezoelectric device 4 changes with the consumption of the material of the anode replacement device 3 to monitor the remaining amount or loss amount of the material of the anode replacement device 3.

[0061] In the embodiment of the present application, a piezoelectric device 4 is built into the anode replacement device 3, and the piezoelectric signal output by the piezoelectric device 4 changes as the material of the anode replacement device 3 is consumed. Therefore, the consumption state of the material of the anode replacement device 3 can be obtained through the piezoelectric signal output by the piezoelectric device 4, thereby realizing the real-time monitoring of the consumption state of the anode replacement device 3.

[0062] As a specific embodiment, the working principle of the piezoelectric device 4 built into the anode replacement device 3 will be described below. Please refer to Figure 2 :

[0063] Specifically, the anode replacement device 3 is preferably a device with a regular shape, such as a sphere, a cube or a regular polyhedron, etc. A sealed cavity 6 can be built into the anode replacement device 3, and the cross-sectional area of the sealed cavity 6 is smaller than the cross-sectional area of the piezoelectric device 4, so that the inner wall of the anode replacement device 3 continuously presses the piezoelectric device 4, causing the piezoelectric device 4 to output different piezoelectric signals under different pressures. It is easy to understand that assuming that the probability of each surface of the anode replacement device 3 coming into contact with the cathode ions in the spraying liquid is the same, then each surface in the anode replacement device 3 will be uniformly worn.

[0064] In the embodiment of the present application, a sealed cavity 6 is built into the anode replacement device 3, and the cross-sectional area of the sealed cavity 6 is smaller than the cross-sectional area of the piezoelectric device 4, so that the inner wall of the anode replacement device 3 continuously presses the piezoelectric device 4, causing the piezoelectric device 4 to output different piezoelectric signals under different pressures. Thus, through a simple structural setting, the monitoring of the loss state of the anode replacement device 3 is realized, and the convenience of monitoring the loss state of the anode replacement device 3 is improved.

[0065] As another specific embodiment, the working principle of the piezoelectric device 4 built into the anode replacement device 3 will be described below. Please refer to Figure 3 :

[0066] Specifically, the anode replacement device 3 is preferably a device with a regular shape, such as a sphere, a cube, or a regular polyhedron. An unsealed elastic material 7 is wrapped around the outer wall of the anode replacement device 3, enabling the cathode ions in the spray liquid to come into contact with the anode replacement device 3. For example, holes of the same size are evenly arranged in the elastic material 7 so that the cathode ions in the spray liquid react preferentially with the anode replacement device 3. Meanwhile, a sealed cavity 6 is arranged inside the anode replacement device 3, and the cross-sectional area of the sealed cavity 6 is not larger than the cross-sectional area of the piezoelectric device 4. The elastic material 7 continuously presses the anode replacement device 3, causing the inner wall of the anode replacement device 3 to continuously press the piezoelectric device 4. To make the cathode ions in the spray liquid react preferentially with the anode replacement device 3, it is also possible to set the reducibility of the elastic material 7 to be weaker than that of the material of the anode replacement device 3, so that the anode replacement device 3 is preferentially consumed over the elastic material 7.

[0067] Furthermore, since the elastic material 7 has a relatively large deformation at the initial stage, a relatively large pressure can be exerted on the anode replacement device 3. As the anode replacement device 3 is consumed, it becomes thinner and thinner, resulting in a decrease in the deformation of the elastic material 7. Therefore, the pressure exerted by the elastic material 7 on the anode replacement device 3 also decreases accordingly. During the consumption process of the anode replacement device 3, the pressure received by the piezoelectric device 4 inside the anode replacement device 3 will have a changing process. For example, the pressure received by the piezoelectric device 4 gradually decreases. Therefore, the piezoelectric device 4 can also output different piezoelectric signals according to the received pressure state, and thereby judge the consumption degree of the anode replacement device 3 through this gradually changing piezoelectric signal.

[0068] In the embodiment of the present application, when the sensitivity of the piezoelectric device 4 is relatively poor, an unsealed elastic material 7 can also be wrapped around the outer wall of the anode replacement device 3, so that the anode replacement device 3 and the elastic material 7 together press the piezoelectric device 4, thereby reducing the requirement for the sensitivity of the piezoelectric device.

[0069] As another specific embodiment, the working principle of the piezoelectric device 4 built in the anode replacement device 3 will be described below. Please refer to Figure 4 :

[0070] Specifically, the anode replacement device 3 is preferably a device with a regular shape, such as a sphere, a cube, or a regular polyhedron. The anode replacement device 3 has a built-in sealed cavity 6. Inside the sealed cavity 6, the piezoelectric device 4 is fixedly arranged, and a metal elastic sheet 8 is arranged adjacent to the piezoelectric device 4. The first end of the metal elastic sheet 8 is fixed inside the anode replacement device 3, and the second end of the metal elastic sheet 8 is fixed inside the fixed block 9, so that the metal elastic sheet 8 is elastically deformed, and the metal elastic sheet 8 is in a non-contact state with the piezoelectric device 4. Among them, the cross-sectional area of the sealed cavity 6 is larger than the cross-sectional area of the piezoelectric device 4, that is, the piezoelectric device 4 is in a non-force state in the initial state, and the piezoelectric device 4 does not output a piezoelectric signal. The fixed block 9 is fixedly connected to the anode replacement device 3, and the reducibility of the material of the fixed block 9 is weaker than the reducibility of the material of the anode replacement device 3.

[0071] Furthermore, when the anode replacement device 3 is consumed until the first end of the metal elastic sheet 8 is ejected, the metal elastic sheet 8 strikes the piezoelectric device 4, causing a sudden change in the piezoelectric signal output by the piezoelectric device 4.

[0072] Specifically, the piezoelectric device 4 includes a piezoelectric material and an electrode. In order to accurately monitor the sudden change amount of the piezoelectric signal, an external current or voltage measuring device can also be connected to the electrode. When the anode replacement device 3 is consumed until the first end of the metal elastic sheet 8 is ejected, the current or voltage measuring device can measure the sudden change amount of the current or voltage.

[0073] In the embodiment of the present application, through the sealed cavity 6, the fixed block 9, the piezoelectric device 4, and the metal elastic sheet 8 built in the anode replacement device 3, when the anode replacement device 3 is consumed until the first end of the metal elastic sheet 8 is ejected, the metal elastic sheet 8 strikes the piezoelectric device 4, causing a sudden change in the piezoelectric signal output by the piezoelectric device 4, thereby realizing the monitoring of the loss state of the anode replacement device 3.

[0074] Furthermore, as another possible embodiment, the working principle of the piezoelectric device 4 built in the anode replacement device 3 will be described below. Please refer to Figure 5 :

[0075] Specifically, the anode replacement device 3 is preferably a device with a regular shape, such as a sphere, a cube, or a regular polyhedron. The outer wall of the anode replacement device 3 is wrapped with a non-hermetic elastic material 7, so that the cathode ions in the spraying liquid can contact the anode replacement device 3. For example, the elastic material 7 is uniformly provided with holes of the same size, so that the cathode ions in the spraying liquid react with the anode replacement device 3 preferentially. At the same time, a sealed cavity 6 is arranged inside the anode replacement device 3, and the cross-sectional area of the sealed cavity 6 is not larger than the cross-sectional area of the piezoelectric device 4. The elastic material 7 continuously presses the anode replacement device 3, so that the inner wall of the anode replacement device 3 continuously presses the piezoelectric device 4. In order to make the cathode ions in the spraying liquid react with the anode replacement device 3 preferentially, it is also possible to set the reducibility of the elastic material 7 to be weaker than the reducibility of the material of the anode replacement device 3, so that the anode replacement device 3 is preferentially consumed rather than the elastic material 7.

[0076] Specifically, the piezoelectric device 4 includes a piezoelectric material and an electrode. In order to better monitor the change process of the piezoelectric signal, the electrode can also be externally connected to a current or voltage measuring device, so as to monitor the change process of the piezoelectric signal through the current or voltage measuring device.

[0077] In this way, on the one hand, as the anode replacement device 3 is consumed, the anode replacement device 3 will become thinner and thinner, so that the deformation amount of the elastic material 7 gradually decreases. Therefore, the pressure exerted by the elastic material 7 on the anode replacement device 3 also decreases accordingly. During the consumption process of the anode replacement device 3, the pressure received by the piezoelectric device 4 inside the anode replacement device 3 will have a changing process. For example, the pressure received by the piezoelectric device 4 gradually decreases. Therefore, the piezoelectric device 4 can output different piezoelectric signals according to the received pressure state, and thus judge the consumption degree of the anode replacement device 3 through the gradually changing piezoelectric signal.

[0078] Furthermore, a metal spring piece 8 can be arranged adjacent to the piezoelectric device 4 in the sealed pressure cavity 6. The first end of the metal spring piece 8 is fixed inside the anode replacement device 3, the second end of the metal spring piece 8 is fixed inside the fixed block 9, the fixed block 9 is fixedly connected to the anode replacement device 3, and the reducibility of the material of the fixed block 9 is weaker than the reducibility of the material of the anode replacement device 3.

[0079] When the anode replacement device 3 is consumed until the first end of the metal spring piece 8 is ejected, the metal spring piece 8 strikes the piezoelectric device 4, so that the piezoelectric signal output by the piezoelectric device 4 changes suddenly.

[0080] Therefore, in the embodiment of the present application, when the anode replacement device 3 is consumed until the first end of the metal spring piece 8 is ejected, the piezoelectric signal of the piezoelectric device 4 can be increased suddenly, so as to better monitor the consumption state of the anode replacement device 3.

[0081] As another specific embodiment, the piezoelectric device 4 can also be disposed at the position where the anode replacement device 3 is finally consumed. For example, when the anode replacement device 3 does not react uniformly with the cathode ions in the spray liquid, in order to monitor the consumption state of the anode replacement device 3 before it is completely consumed, the piezoelectric device 4 is disposed at the position where the anode replacement device 3 is finally consumed, and the position where the anode replacement device 3 is finally consumed also varies with the position of the anode replacement device 3 in the evaporative condenser unit.

[0082] Specifically, please refer to Figure 6 , to solve the problem that the high-temperature area of the cooler is easily damaged, part of the anode replacement device 3 can be disposed in the high-temperature area of the condenser 1, and part of the anode replacement device 3 can be disposed in the low-temperature area of the condenser 1, thereby solving the problem that the high-temperature area of the condenser 1 is easily damaged.

[0083] When the anode replacement device 3 is disposed in different temperature ranges, since the higher the temperature, the faster the reaction rate between the anode replacement device 3 and the cathode ions in the spray liquid, the position where the anode replacement device 3 is finally damaged is the low-temperature area in the anode replacement device 3.

[0084] Furthermore, please refer to Figure 7 , the anode replacement device 3 can also be completely immersed in the spray liquid in the spray liquid collection tank 5, which can increase the contact surface between the anode replacement device 3 and the spray liquid, thereby preferentially ensuring the reaction between the anode replacement device 3 and the cathode ions in the spray liquid to better protect the condenser 1 in the evaporative condenser unit.

[0085] If the anode replacement device 3 is completely immersed in the spray liquid in the spray liquid collection tank 5, that is, the anode replacement device 3 is in complete contact with the spray liquid. Since the probability of each surface of the anode replacement device 3 coming into contact with the cathode ions in the spray liquid is exactly the same, the position where the anode replacement device 3 is finally damaged is the relative geometric center of the anode replacement device.

[0086] It is easy to understand that when the outer shape of the anode replacement device 3 is a regular shape, the relative geometric center of the anode replacement device 3 is the center point of the anode replacement device 3. When the outer shape of the anode replacement device 3 is an irregular shape, the relative geometric center of the anode replacement device 3 can be determined by the multi-point suspension method.

[0087] Furthermore, please refer to Figure 8, the anode replacement device 3 can also be semi-immersed in the spray liquid in the spray liquid collection tank 5. In this way, compared with the method of completely immersing the anode replacement device 3 in the spray liquid in the spray liquid collection tank 5, the vertical distance between the anode replacement device 3 and the spray liquid sprayed by the spray device 2 is shortened, thereby accelerating the reaction between the anode replacement device 3 and the cathode ions in the spray liquid sprayed by the spray device 2, and better protecting the condenser 1 in the evaporative condenser unit.

[0088] If the anode replacement device 3 is semi-immersed in the spray liquid in the spray liquid collection tank 5, that is, the anode replacement device 3 is not in complete contact with the spray liquid, the last worn position of the anode replacement device 3 is one end of the anode replacement device 3 away from the part in contact with the spray liquid.

[0089] Further, please refer to Figure 9 , in order to make the anode replacement device 3 wear in the direction expected by the user, the partial surface of the anode replacement device 3 can be further subjected to oxidation resistance or insulation treatment to obtain an oxide layer or an insulating layer 10, so that the anode replacement device 3 wears the unoxidized or uninsulated position in the anode replacement device 3 first and then wears the position in the anode replacement device 3 that has been subjected to oxidation resistance treatment or insulation treatment according to the user's expectation.

[0090] If the partial surface of the anode replacement device 3 has been subjected to oxidation resistance treatment or insulation treatment, the last worn position in the anode replacement device 3 is the position subjected to oxidation resistance treatment or insulation treatment.

[0091] In the above embodiments, when the anode replacement device 3 is arranged at different positions in the evaporative condenser unit, the last worn position of the anode replacement device 3 is described in detail, thereby improving the accuracy of monitoring the wear state of the anode replacement device 3.

[0092] Based on the above embodiments, the spray liquid is generally recycled, so the general evaporative condenser unit further includes a conveying device for pumping the liquid in the spray liquid collection tank 5 to the spray device 2. In addition, the evaporative condenser unit mainly uses the phase change heat transfer of the external liquid to transfer the heat in the system to the outside, and generally also includes a housing, a water baffle, etc.; and a circuit for transferring the heat in the system to the outside is formed in the condenser 1, and this circuit is not limited to only tube heat transfer, or finned tube heat transfer, plate heat transfer; the spray device 2 includes a liquid driving device, a liquid inlet, a liquid flow channel, a liquid outlet, etc.

[0093] Based on the evaporative condenser unit described in the above embodiments, a processor 11 electrically connected to the piezoelectric device 4 can also be arranged in the evaporative condenser unit. Please refer to Figure 10 , from the perspective of the processor 11, the process of replenishing or replacing the anode replacement device will be described below:

[0094] The processor is configured to:

[0095] Obtain the piezoelectric signal output by the piezoelectric device and the threshold piezoelectric signal, where the threshold piezoelectric signal is used to indicate that the loss amount of the anode replacement device material is in a critical state;

[0096] If the piezoelectric signal approaches the threshold piezoelectric signal, send an alarm message to prompt replacement or supplementation of the anode replacement device.

[0097] As a specific implementation, a sealed cavity 6 can be provided inside the anode replacement device 3. The piezoelectric device 4 and a metal shrapnel 8 adjacent to the piezoelectric device 4 are fixedly arranged inside the sealed cavity 6. The first end of the metal shrapnel 8 is fixed inside the anode replacement device 3, and the second end is fixed inside a fixed block 9, so that the metal shrapnel 8 is elastically deformed, and the metal shrapnel 8 is in a non-contact state with the piezoelectric device 4. Wherein, the fixed block 9 is fixedly connected to the anode replacement device 3, and the reducibility of the material of the fixed block 9 is weaker than that of the material of the anode replacement device 3.

[0098] Specifically, when the anode replacement device 3 is consumed until the first end of the metal shrapnel 8 is ejected, the metal shrapnel 8 strikes the piezoelectric device 4, causing a sudden change in the piezoelectric signal output by the piezoelectric device 4.

[0099] Specifically, the piezoelectric device 4 includes a piezoelectric material and an electrode. The electrode is externally connected to a current or voltage measuring device. When the anode replacement device 3 is consumed until the first end of the metal shrapnel 8 is ejected, the current or voltage measuring device can measure the sudden change in current or voltage.

[0100] Specifically, for the convenience of observing the piezoelectric signal, an operational amplifier, a band-pass filter circuit, and a data acquisition A / D converter can also be provided between the processor and the piezoelectric device:

[0101] Wherein, the band-pass filter circuit is used to filter out interference signals;

[0102] The operational amplifier is used to amplify the piezoelectric signal passing through the band-pass filter;

[0103] The data acquisition A / D converter is used to convert the piezoelectric signal into a digital signal;

[0104] The processor is further configured to:

[0105] Monitor the sudden change in the current or voltage, and when the sudden change in the current or voltage is detected, send an alarm message to prompt replacement or supplementation of the anode replacement device.

[0106] For ease of understanding, Figure 11 a schematic diagram of the connections between a processor, a piezoelectric device, an operational amplifier, a band-pass filter circuit, and a data acquisition A / D converter is given.

[0107] Among them, when the current or voltage quantity output by the piezoelectric device undergoes a sudden change, the sudden change in the current or voltage quantity first passes through a band-pass filter for filtering to remove the interference signals in the sudden change in the current or voltage quantity. Further, the filtered current or voltage quantity is input to an operational amplifier for signal amplification. Finally, the amplified analog current or analog voltage is converted into a digital signal and sent to the processor. When the processor detects the sudden change in the current or voltage quantity, an alarm message is sent to prompt the replacement or supplementation of the anode replacement device.

[0108] Specifically, regarding the structural setting between the piezoelectric device 4 and the anode replacement device 3, and the working principle of the piezoelectric device 4, reference can also be made to Figures 1 to 8 that described in the embodiments, which will not be elaborated here.

[0109] In the embodiments of the present application, the process of prompting the replacement or supplementation of the anode replacement device is described in detail from the perspective of the processor, thereby improving the convenience and intelligence of the evaporative condenser unit in the embodiments of the present application.

[0110] In this specification, the various embodiments are described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. The same or similar parts among the various embodiments can be referred to each other.

[0111] The above is the case. The above embodiments are only used to illustrate the technical solutions of the present invention, rather than 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 perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An evaporative condenser unit, comprising a condenser, a spraying device for spraying liquid onto the condenser, a spraying liquid collecting tank located below the condenser, and a conveying device for pumping the liquid in the spraying liquid collecting tank to the spraying device, characterized in that, It also includes an anode replacement device that contacts the spray liquid sprayed by the spray device and / or the spray liquid to be sprayed, and the anode replacement device has a built-in piezoelectric device. The piezoelectric signal output by the piezoelectric device changes with the consumption of the anode replacement device material, so as to monitor the remaining amount or loss amount of the anode replacement device material, wherein the reducing property of the anode replacement device material is stronger than the reducing property of the material of the condenser in contact with the liquid; The anode replacement device has a sealed cavity built in, and the cross-sectional area of the sealed cavity is smaller than the cross-sectional area of the piezoelectric device, so that the inner wall of the anode replacement device continuously squeezes the piezoelectric device; and / or, The anode replacement device has a built-in sealed cavity, in which the piezoelectric device and a metal spring arranged adjacent to the piezoelectric device are fixedly installed, wherein a first end of the metal spring is fixed in the anode replacement device and a second end is fixed in a fixed block, so that the metal spring exhibits elastic deformation, wherein the fixed block is fixedly connected to the anode replacement device.

2. The evaporative condenser unit according to claim 1, wherein, The outer wall of the anode replacement device is wrapped with a non-sealed elastic material, wherein the reducing property of the elastic material is weaker than the reducing property of the anode replacement device material.

3. The evaporative condenser unit according to any one of claims 1 to 2, characterized in that The metal spring sheet and the piezoelectric device are in a non-contact state, wherein the reducing property of the fixing block material is weaker than the reducing property of the anode replacement device material.

4. The evaporative condenser unit according to claim 3, characterized in that, If the anode replacement device is consumed to the point that the first end of the metal dome is ejected, the metal dome strikes the piezoelectric device, causing a sudden change in the piezoelectric signal output by the piezoelectric device.

5. The evaporative condenser unit according to claim 4, wherein, The piezoelectric device includes a piezoelectric material and an electrode, wherein the electrode is externally connected to a current or voltage measuring device. If the anode replacement device is consumed to the point that the first end of the metal spring is ejected, the current or voltage measuring device can measure a sudden change in current or voltage.

6. The evaporative condenser unit according to claim 1, wherein The piezoelectric device is disposed at a position where the anode replacement device is last worn out.

7. The evaporative condenser unit according to claim 6, characterized in that, If the anode replacement device is in complete contact with the spray liquid, the position where the anode replacement device is last corroded is the relative geometric center of the anode replacement device.

8. The evaporative condenser unit according to claim 6, characterized in that, If the anode replacement device is not in complete contact with the spray liquid, the position of the anode replacement device that is last worn out is the end of the anode replacement device that is away from the portion in contact with the spray liquid.

9. The evaporative condenser unit according to claim 6, wherein, If the anode replacement device is set in different temperature ranges, the position where the anode replacement device is last worn out is the position set in the low temperature area.

10. The evaporative condenser unit according to claim 6, characterized in that, If a portion of the surface of the anode replacement device is subjected to oxidation resistance treatment or insulation treatment, the position of the anode replacement device that is last worn out is the position subjected to oxidation resistance treatment or the position subjected to insulation treatment.

11. An evaporative condenser unit, comprising a condenser, a spraying device for spraying liquid onto the condenser, and a spraying liquid collecting tank located below the condenser, characterized in that, It further includes an anode replacement device that comes into contact with the sprayed spray liquid and / or the spray liquid to be sprayed. The anode replacement device is internally provided with a piezoelectric device and a processor electrically connected to the piezoelectric device. Wherein, the piezoelectric signal output by the piezoelectric device changes as the material of the anode replacement device is consumed, so as to monitor the remaining amount or loss amount of the material of the anode replacement device. The reducibility of the material of the anode replacement device is stronger than that of the part of the condenser in contact with the liquid. Wherein, the anode replacement device is internally provided with a sealed cavity, and the cross-sectional area of the sealed cavity is smaller than the cross-sectional area of the piezoelectric device, so that the inner wall of the anode replacement device continuously presses the piezoelectric device. and / or, The anode replacement device is internally provided with a sealed cavity, in which the piezoelectric device is fixedly arranged, and a metal elastic sheet adjacent to the piezoelectric device. The first end of the metal elastic sheet is fixed inside the anode replacement device, and the second end is fixed inside the fixed block, so that the metal elastic sheet presents an elastic deformation. Wherein, the fixed block is fixedly connected to the anode replacement device. The processor is used for: Obtain the piezoelectric signal output by the piezoelectric device and the threshold piezoelectric signal, wherein the threshold piezoelectric signal is used to indicate that the loss amount of the material of the anode replacement device is in a critical state. If the piezoelectric signal approaches the threshold piezoelectric signal, send an alarm message to prompt replacement or replenishment of the anode replacement device.

12. The evaporative condenser unit according to claim 11, wherein, The metal elastic sheet and the piezoelectric device are in a non-contact state, wherein the reducibility of the material of the fixed block is weaker than that of the material of the anode replacement device.

13. The evaporative condenser unit according to claim 12, characterized in that, When the anode replacement device is consumed to such an extent that the first end of the metal elastic sheet is ejected, the metal elastic sheet strikes the piezoelectric device, causing a sudden change in the piezoelectric signal output by the piezoelectric device.

14. The evaporative condenser unit according to claim 13, characterized in that, The piezoelectric device includes a piezoelectric material and an electrode. The electrode is externally connected to a current or voltage measuring device. When the anode replacement device is consumed to such an extent that the first end of the metal elastic sheet is ejected, the current or voltage measuring device can measure a sudden change in current or voltage.

15. The evaporative condenser unit according to claim 13, characterized in that, An operational amplifier, a band-pass filter circuit, and a data acquisition A / D converter are also connected between the processor and the piezoelectric device. The band-pass filter circuit is used to filter out interference signals. The operational amplifier is used to amplify the piezoelectric signal passing through the band-pass filter circuit. The data acquisition A / D converter is used to convert the piezoelectric signal into a digital signal. The processor is also used for: Monitor the sudden change in current or voltage, and when the sudden change in current or voltage is detected, send an alarm message to prompt replacement or replenishment of the anode replacement device.

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