Cleaning equipment

Abstract

To provide a washing device for reducing washing effect irregularities.SOLUTION: A washing device includes an injection part for injecting fluid to a pipe group having a plurality of pipes arranged therein, a moving mechanism for moving the injection part along the pipe group, and a drive part for driving the injection part and the moving mechanism, the injection part having a plurality of nozzles, the drive part serving for changing at least one type selected from a group consisting of distances between the nozzles and the pipe group, angles of the nozzles, spaces between the nozzles, a moving speed of the injection part, and a pressure of the fluid on the basis of information about the pipe group and / or the fluid.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a cleaning device, and more particularly to a cleaning device for cleaning dirt adhering to the surface of an air-cooled condenser. [Background technology]

[0002] Conventionally, steam generated in a plant's boiler equipment is passed through a turbine, and then cooled by an air-cooled condenser, which returns the steam to water for circulation. The cooling efficiency of an air-cooled condenser has a significant impact on the plant's operating efficiency. If the cooling efficiency is low, the degree of vacuum in the downstream stages of the turbine will not increase, and turbine efficiency will decrease. Therefore, it is necessary to prevent a decrease in the cooling efficiency of the air-cooled condenser.

[0003] The fan in an air-cooled condenser blows outside air into the condenser panel. The tubes in the air-cooled condenser exchange heat with the outside air and then release it. During this process, dirt such as dust contained in the outside air accumulates on the surface of the tubes. Therefore, workers wash off the accumulated dirt by spraying water.

[0004] However, because the cleaning is done by an operator, there are problems with uneven cleaning results. Also, if the spray nozzle is placed too close to the aluminum fin tube or if the spray angle is inappropriate, the fin tube may be deformed.

[0005] For example, Patent Document 1 discloses a cleaning device that "cleans a group of pipes arranged in a plate shape having a first surface and a second surface positioned opposite each other as a whole, the cleaning device comprising an injection unit that removes dust adhering to the pipes by injecting a fluid onto the group of pipes from the side of the first surface, and a traveling mechanism that moves the injection unit along the first surface." [Prior art documents] [Patent documents]

[0006] [Patent Document 1] International Publication No. 2007 / 027324 Summary of the Invention [Problem to be solved by the invention]

[0007] In recent years, there has been a demand for a cleaning device that can further reduce unevenness in the cleaning effect.

[0008] SUMMARY OF THE INVENTION It is therefore a primary object of the present invention to provide a cleaning device that reduces unevenness in the cleaning effect. [Means for solving the problem]

[0009] The present invention provides a cleaning device comprising: an injection unit that injects fluid onto a tube group having a plurality of tubes arranged therein; a movement mechanism that moves the injection unit along the tube group; and a drive unit that drives the injection unit and the movement mechanism, wherein the injection unit has a plurality of nozzles, and the drive unit changes one or more selected from the group consisting of the distance between the nozzles and the tube group, the angle of the nozzles, the spacing between the nozzles, the movement speed of the injection unit, and the pressure of the fluid based on information about the tube group and / or the fluid. The cleaning device may further include an input unit to which design data including information relating to the tube group is input. Each of the plurality of nozzles may be inclined at approximately the same angle with respect to the thickness direction of the tube bundle. The cleaning device may further include a fluid amount measuring unit that measures the amount of the fluid that has passed through the tube group, and the information about the fluid may include the amount. The cleaning device may further include a turbidity measuring unit that measures the turbidity of the fluid that has passed through the tube group, and the information about the fluid may include the turbidity. The information about the fluid may include changes in the turbidity over time. The movement mechanism may have a horizontal movement mechanism that moves the injection unit in the radial direction of the pipe, and a vertical movement mechanism that moves the injection unit in the longitudinal direction of the pipe, and the distance between the horizontal movement mechanism and the pipe group may be approximately constant, and the distance between the vertical movement mechanism and the pipe group may be approximately constant. The fluid may be high-pressure water of 2 MPa or more. The tubes may be fin tubes for a heat exchanger. [Effects of the Invention]

[0010] According to the present invention, a cleaning device that reduces unevenness in cleaning effect can be provided. Note that the effects described in this specification are merely examples and are not limiting, and other effects may also be provided. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a simplified side view showing an example of the configuration of a cleaning device 1 according to an embodiment of the present invention. [Figure 2] 1 is a simplified side view showing an example of the configuration of a cleaning device 1 according to an embodiment of the present invention. [Figure 3] 1 is a simplified side view showing an example of the configuration of a lateral movement mechanism 121 according to an embodiment of the present invention. [Figure 4] FIG. 2 is a simplified perspective view showing an example of the configuration of a lateral movement mechanism 121 according to one embodiment of the present invention. [Figure 5] FIG. 2 is a simplified perspective view showing an example of the configuration of a lateral movement mechanism 121 according to one embodiment of the present invention. [Figure 6] 1 is a simplified diagram showing an example of how a cleaning device 1 according to an embodiment of the present invention performs cleaning. [Figure 7] 1 is a simplified diagram showing an example of how a cleaning device 1 according to an embodiment of the present invention performs cleaning. [Figure 8] 1 is a block diagram showing an example of the configuration of a cleaning device 1 according to an embodiment of the present invention. [Figure 9] 2 is a block diagram showing an example of the configuration of a control device 4 according to one embodiment of the present invention. FIG. [Figure 10] 3 is a flowchart showing an example of processing performed by the cleaning device 1 according to one embodiment of the present invention. [Figure 11] 1 is a diagram showing an example of a pipe 231 to be cleaned by a cleaning device 1 according to an embodiment of the present invention. [Figure 12]FIG. 2 is a diagram showing a state in which a nozzle 111 according to an embodiment of the present invention ejects a fluid. [Figure 13] 1 is a block diagram showing an example of the configuration of a cleaning device 1 according to an embodiment of the present invention. [Figure 14] 1 is a diagram showing how a cleaning device 1 according to an embodiment of the present invention performs cleaning. [Figure 15] 1 is a diagram showing how a cleaning device 1 according to an embodiment of the present invention performs cleaning. [Figure 16] 1 is a block diagram showing an example of the configuration of a cleaning device 1 according to an embodiment of the present invention. [Figure 17] 3 is a flowchart showing an example of processing performed by the cleaning device 1 according to one embodiment of the present invention. [Figure 18] 1 is a block diagram showing an example of the configuration of a cleaning device 1 according to an embodiment of the present invention. [Figure 19] 3 is a flowchart showing an example of processing performed by the cleaning device 1 according to one embodiment of the present invention. [Figure 20] 3 is a flowchart showing an example of processing performed by the cleaning device 1 according to one embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0012] Preferred embodiments for carrying out the present invention will be described below with reference to the accompanying drawings. Note that the embodiments described below are representative embodiments of the present invention, and the scope of the present invention is not limited to these embodiments. Furthermore, each embodiment can be combined.

[0013] In the following description of the embodiments, configurations may be described using terms including "approximately," such as "approximately parallel" and "approximately perpendicular." For example, "approximately parallel" does not only mean completely parallel, but also means substantially parallel, i.e., including a state where the orientation is deviated from the completely parallel state by, for example, a few percent. The same applies to other terms including "approximately." Furthermore, each figure is a schematic diagram and is not necessarily an exact illustration.

[0014] Unless otherwise specified, in the drawings, "upper" means the upper direction or upper side in the drawing, "lower" means the lower direction or lower side in the drawing, "left" means the left direction or left side in the drawing, and "right" means the right direction or right side in the drawing. Furthermore, in the drawings, the same or equivalent elements or members are given the same reference numerals, and redundant explanations will be omitted.

[0015] The present invention will be described in the following order. 1. First embodiment (example 1 of cleaning device) 2. Second embodiment (Example 2 of cleaning device) 3. Third embodiment (Cleaning device example 3) 4. Fourth embodiment (Cleaning device example 4)

[0016] 1. First Embodiment (Example 1 of Cleaning Apparatus) A cleaning device according to one embodiment of the present invention comprises an injection unit that injects a fluid onto a tube group having a plurality of tubes arranged therein, a movement mechanism that moves the injection unit along the tube group, and a drive unit that drives the injection unit and the movement mechanism, wherein the injection unit has a plurality of nozzles, and the drive unit changes one or more selected from the group consisting of the distance between the nozzles and the tube group, the angle of the nozzles, the spacing between the nozzles, the movement speed of the injection unit, and the pressure of the fluid based on information relating to the tube group and / or the fluid.

[0017] An example of the configuration of a cleaning device according to one embodiment of the present invention will be described with reference to Fig. 1. Fig. 1 is a simplified side view showing an example of the configuration of a cleaning device 1 according to one embodiment of the present invention.

[0018] 1, a cleaning device 1 according to one embodiment of the present invention is part of an air-cooled condensing system 100. The air-cooled condensing system 100 includes a condenser 2, a fan 3 that sends air to the condenser 2, and a cleaning device 1 that cleans the condenser 2.

[0019] The condenser 2 has a steam pipe 21 to which steam is supplied, a condenser panel 22 that houses multiple pipes branching from the steam pipe 21, and a drain water pipe 24 to which the multiple pipes converge. Although not shown, multiple pipes are arranged side by side from the front to the back inside the condenser panel 22. A fan 3 is arranged below the condenser panel 22, more specifically directly below it.

[0020] Steam discharged from a device that uses steam, such as a power generation turbine (not shown), passes through the inside of multiple tubes built into the condenser panel 22. A fan 3 sends air into these multiple tubes. As this air passes through the gaps between the multiple tubes, it exchanges heat with the steam passing through the inside of the multiple tubes. The steam is cooled by the air sent in from the fan 3 and condenses. The condensed water is discharged via a drain water pipe 24.

[0021] The air sent in from the fan 3 contains dirt such as dust, which can cause the dirt to adhere and accumulate on the surfaces of the multiple tubes built into the condenser panel 22. This dirt must therefore be cleaned periodically.

[0022] A cleaning device 1 according to one embodiment of the present invention can clean this dirt evenly. The cleaning device 1 includes an injection unit 11, a movement mechanism 12, and a drive unit (not shown). The injection unit 11 injects fluid onto a tube group consisting of multiple tubes built into a condenser panel 22. The movement mechanism 12 moves the injection unit 11 along the tube group.

[0023] An example of the configuration of a cleaning device 1 according to one embodiment of the present invention will be described with reference to Fig. 2. Fig. 2 is a simplified side view showing an example of the configuration of a cleaning device 1 according to one embodiment of the present invention.

[0024] The length direction of the tube 231 is the Y direction, the thickness direction of the tube group 23 is the Z direction, and the direction perpendicular to the Y direction and the Z direction is the X direction. Fig. 2 is a view of Fig. 1 as seen from the Z direction.

[0025] 2, the movement mechanism 12 has a horizontal movement mechanism 121 that moves the ejection unit 11 in the X direction, and a vertical movement mechanism 122 that moves the ejection unit 11 in the Y direction. The ejection unit 11 has a plurality of nozzles 111 that eject a fluid 112.

[0026] The lateral movement mechanism 121 is composed of, for example, a first rail 1211, wheels 1212, and a connecting rod 1213. The wheels 1212 in contact with the first rail 1211 and the wheels 1212 in contact with the first rail 1211 are connected by the connecting rod 1213. This makes it possible to prevent the longitudinal movement mechanism 122 from tilting.

[0027] The vertical movement mechanism 122 is configured by, for example, a second rail 1221, a belt 1222, and a gear 1223. The belt 1222 rotates in the Y direction via the gear 1223.

[0028] The driving unit 13 drives the ejection unit 11 and the moving mechanism 12. The driving unit 13 can be realized by using, for example, a motor or a hand crank.

[0029] The driving unit 13 is composed of a first driving unit 131, a second driving unit 132, etc. The first driving unit 131 rotates the wheels 1212, causing the spray unit 11 to move in the X direction. The second driving unit 132 rotates the belt 1222, causing the spray unit 11 to move in the Y direction along the second rail 1221.

[0030] At this time, it is preferable that the distance in the Z direction between the lateral movement mechanism 121 and the tube group 23 is approximately constant, and the distance in the Z direction between the vertical movement mechanism 122 and the tube group 23 is approximately constant. This allows dirt adhering to the surface of the tube group 23 to be evenly cleaned. This effect also occurs in the other embodiments described below. Therefore, description of this effect may be omitted in the explanation of other embodiments.

[0031] An example of the configuration of the lateral movement mechanism 121 will be described with reference to Figures 3 to 5. Figure 3 is a simplified side view showing an example of the configuration of the lateral movement mechanism 121 according to one embodiment of the present invention. Figures 4 and 5 are simplified perspective views showing an example of the configuration of the lateral movement mechanism 121 according to one embodiment of the present invention. Figure 5 is an enlarged view of the circled portion shown in Figure 4.

[0032] As shown in Fig. 3, the first rail 1211 is attached to the condenser panel 22 via a support member 123 and a lifting beam 124. As shown in Fig. 5, the support member 123 is composed of a bracket 1231, a reinforcing support member 1232, a reinforcing support clamp 1233, and the like.

[0033] Fluid sprayed from each of the multiple nozzles 111 removes dirt adhering to the surface of the pipe 231. This will be described with reference to Figs. 6 and 7. Figs. 6 and 7 are simplified diagrams showing an example of how the cleaning device 1 according to one embodiment of the present invention performs cleaning. Fig. 6 is a view as seen from the Z direction in Fig. 1. Fig. 7 is a cross-sectional view as seen from the Y direction in Fig. 1.

[0034] 6 and 7, a plurality of fins 232 are formed on the outer circumferential surface of each of the plurality of tubes 231. That is, each of the plurality of tubes 231 can be a fin tube for a heat exchanger. The plurality of tubes 231 are arranged generally parallel to each other.

[0035] 7, the tube group 23 is made up of six layers of tubes 231. In this case, in two adjacent layers, the tubes 231 in one layer and the tubes 231 in the other layer are arranged so that their respective axes are different in the X direction. In other words, in the tube group 23, the tubes 231 are arranged in a staggered pattern overall.

[0036] The fluid 112 jetted from each of the plurality of nozzles 111 removes dirt adhering to the surfaces of the tubes 231. As the tubes 231 are generally arranged in a staggered pattern, the fluid 112 jetted from each of the plurality of nozzles 111 passes through the gaps between the tubes 231. This removes dirt that has accumulated in the gaps between the tubes 231.

[0037] The fluid 112 sprayed from each of the multiple nozzles 111 may be, for example, high-pressure water or air. However, since spraying air may cause dirt to scatter, it is preferable that the fluid 112 be high-pressure water. In particular, it is preferable that the fluid 112 be high-pressure water of 2 MP or more. Applying pressure to the water makes it easier to remove dirt. Note that in order to avoid deformation of the pipe 231, it is preferable that the pressure of the fluid 112 be approximately 10 MP or less.

[0038] It is preferable that each of the plurality of nozzles 111 is inclined at approximately the same angle with respect to the thickness direction (Z direction) of the tube group 23. This allows the fluid 112 sprayed from each of the plurality of nozzles 111 to pass through the gaps between the tubes 231 approximately uniformly. As a result, unevenness in the cleaning effect is reduced.

[0039] Note that the multiple nozzles 111 may move independently. That is, the nozzle 111 arranged on the left side of the ejection unit 11 shown in Fig. 2 and the nozzle 111 arranged on the right side may move in different directions.

[0040] Based on information about the tube group and / or the fluid, the driver 13 changes one or more selected from the group consisting of the distance in the Z direction between the nozzle 111 and the tube group 23, the angle of the nozzle 111, the spacing between the nozzles 111, the movement speed of the spray unit 11, and the pressure of the fluid. Specific examples include: the driver 13 lengthens or shortens the distance in the Z direction between the nozzle 111 and the tube group 23; the driver 13 increases or decreases the angle of the nozzle 111; the driver 13 lengthens or shortens the spacing between the nozzles 111; the driver 13 increases or decreases the movement speed of the spray unit 11; and the driver 13 increases or decreases the pressure of the fluid sprayed by the nozzle 111. This allows the cleaning device 1 to reduce unevenness in the cleaning effect.

[0041] The information about the tube group includes, for example, the diameter, arrangement, material of the tubes, etc. For example, if the material of the tube 231 is soft, the driver 13 can prevent deformation of the tube by changing the distance between the nozzle 111 and the tube group 23, etc.

[0042] The information about the fluid includes, for example, the amount, pressure, turbidity, and temperature of the fluid. For example, when the amount of fluid passing through the tube group 23 is insufficient, the driving unit 13 can increase the degree of cleaning by changing the distance between the nozzle 111 and the tube group 23.

[0043] An example of the configuration of the cleaning device 1 will be described with reference to Fig. 8. Fig. 8 is a block diagram showing an example of the configuration of the cleaning device 1 according to one embodiment of the present invention.

[0044] As shown in FIG. 8, the cleaning device 1 includes an ejection unit 11, a movement mechanism 12, and a drive unit 13.

[0045] The cleaning device 1 is connected to a control device 4. The control device 4 controls the driving of the drive unit 13. The cleaning device 1 and the control device 4 can communicate with each other using wireless communication technology or wired communication technology, such as Wi-Fi, Bluetooth (registered trademark), and LTE (Long Term Evolution). The cleaning device 1 and the control device 4 may be independent as shown in this figure, or may be integrated.

[0046] An example of the configuration of the control device 4 will be described with reference to Fig. 9. Fig. 9 is a block diagram showing an example of the configuration of the control device 4 according to one embodiment of the present invention.

[0047] 9, the control device 4 may include, as components, a CPU 41, a memory 42, a storage unit 43, a display unit 44, and a communication unit 45. The components are connected to each other by, for example, a bus serving as a data transmission path.

[0048] The CPU 41 controls each component of the control device 4. Alternatively, the CPU 41 can function as a control unit that controls the driving of the drive unit 13. This control unit can be realized by a program. This program can be read into the CPU 41 and executed by the control device 4.

[0049] The memory 42 can temporarily store, for example, programs and data executed by the CPU 41. The memory 42 can be realized by using, for example, a RAM (Random Access Memory).

[0050] The storage unit 43 stores various data (such as predetermined threshold values) required for processing by the CPU 41. The storage unit 43 can be realized by using, for example, a storage device.

[0051] The display unit 44 displays information to the user. The display unit 44 can be realized by using, for example, an LCD (Liquid Crystal Display) or an OLED (Organic Light-Emitting Diode).

[0052] The communication unit 45 has the function of communicating via, for example, the Internet, a wired LAN (Local Area Network), a wireless LAN, a mobile communication network, a telephone line communication network, Bluetooth (registered trademark), NFC, or other communication networks using wired or wireless communication.

[0053] The control device 4 may be, for example, a smartphone terminal, a tablet terminal, a mobile phone terminal, a PDA (Personal Digital Assistant), a PC (Personal Computer), a server, or a wearable terminal (HMD: Head Mounted Display, eyeglass-type HMD, watch-type terminal, band-type terminal, etc.).

[0054] The program for realizing the musculoskeletal function evaluation method according to one embodiment of the present invention may be stored in a computer device or computer system other than the control device 4. In this case, the control device 4 can use a cloud service that provides the functions of the program. Examples of such cloud services include SaaS (Software as a Service), IaaS (Infrastructure as a Service), and PaaS (Platform as a Service).

[0055] Furthermore, this program can be stored and supplied to a computer using various types of non-transitory computer-readable media. Non-transitory computer-readable media include various types of tangible storage media. Examples of non-transitory computer-readable media include magnetic storage media (e.g., flexible disks, magnetic tapes, hard disk drives), magneto-optical storage media (e.g., magneto-optical disks), Compact Disc Read Only Memory (CD-ROM), CD-R, CD-R / W, and semiconductor memory (e.g., mask ROM, programmable ROM (PROM), erasable PROM (EPROM), flash ROM, random access memory (RAM)). The program may also be supplied to a computer by various types of transitory computer-readable media. Examples of transitory computer-readable media include electrical signals, optical signals, and electromagnetic waves. The transitory computer-readable medium can supply the program to a computer via a wired communication path such as an electric wire or optical fiber, or via a wireless communication path.

[0056] An example of processing performed by the cleaning device 1 will be described with reference to Fig. 10. Fig. 10 is a flowchart showing an example of processing performed by the cleaning device 1 according to one embodiment of the present invention.

[0057] As shown in FIG. 10, in step S11, the cleaning device 1 acquires information about the tube bank. In step S12, the cleaning device 1 acquires information about the fluid. In step S13, the control device 4 compares the value included in the information relating to the tube bank with a predetermined threshold value stored inside the control device 4. In step S15, if the value included in the information about the tube bank is equal to or greater than the predetermined threshold value (step S13: Yes), the control device 4 instructs the drive unit 13 to drive. In step S14, the control device 4 compares the value included in the information about the fluid with a predetermined threshold value stored inside the control device 4. In step S15, when the value included in the information about the fluid is equal to or greater than the predetermined threshold value (step S14: Yes), the control device 4 instructs the driving unit 13 to drive. In step S16, the driving unit 13, in response to instructions from the control device 4, changes one or more selected from the group consisting of the distance between the nozzle 111 and the tube group 23, the angle of the nozzle 111, the spacing between the nozzles 111, the movement speed of the injection unit 11, and the pressure of the fluid.

[0058] The shape of the pipe 231 is not particularly limited. As shown in Fig. 7, the cross-sectional shape of the pipe 231 may be circular, or may have a shape as shown in Fig. 11. Fig. 11 is a diagram showing an example of a pipe 231 to be cleaned by a cleaning device 1 according to an embodiment of the present invention. As shown in Fig. 11, a plurality of fins 232 are formed on the outer circumferential surface of the pipe 231. Each of the plurality of fins 232 has an air flow path that is connected from the front side to the back side. This makes it easy for the fluid to pass through to the inside.

[0059] Therefore, it is preferable that the nozzle 111 sprays the fluid in a fan shape. This will be explained with reference to FIG. 12. FIG. 12 is a diagram showing how the nozzle 111 according to one embodiment of the present invention sprays the fluid. As shown in FIG. 12, the nozzle 111 sprays the fluid in a fan shape. It is preferable that the spray angle of the nozzle 111 is, for example, about 15 to 30 degrees. This improves cleaning efficiency.

[0060] If the cross-sectional shape of the pipe 231 is circular as shown in FIG. 7, the fluid may be sprayed directly.

[0061] The above description of the cleaning device according to the first embodiment of the present technology can be applied to other embodiments of the present technology unless there is a particular technical contradiction.

[0062] 2. Second Embodiment (Example 2 of Cleaning Apparatus) The cleaning device 1 according to the first embodiment can reduce unevenness in the cleaning effect by adjusting the distance between the nozzle 111 and the tube group 23 during the cleaning operation stage.

[0063] On the other hand, the cleaning device 1 according to the second embodiment is a technology at the design stage of the cleaning device 1. According to the present invention, it is possible to design a cleaning device 1 that can reduce unevenness in the cleaning effect.

[0064] An example of the configuration of a cleaning device 1 according to the second embodiment will be described with reference to Fig. 13. Fig. 13 is a block diagram showing an example of the configuration of a cleaning device 1 according to one embodiment of the present invention. As shown in Fig. 13, the cleaning device 1 according to one embodiment of the present invention includes an input unit 14, an adjustment unit 15, an ejection unit 11, a movement mechanism 12, and a drive unit 13.

[0065] The input unit 14 and the adjustment unit 15 can be realized by, for example, a CPU (Central Processing Unit) reading a program.

[0066] Design data including information about the tube bank is input to the input unit 14. The information about the tube bank includes, for example, the diameter, arrangement, and material of the tubes. For example, information about the diameter and arrangement of the tubes as shown in FIG. 7 is included in the design data.

[0067] Based on the information about the tube group included in the design data, the adjustment unit 15 changes one or more selected from the group consisting of the distance between the nozzle 111 and the tube group 23, the angle of the nozzle 111, the interval between the nozzles 111, the movement speed of the spray unit 11, and the pressure of the fluid. This allows the cleaning device 1 to reduce unevenness in the cleaning effect.

[0068] The above description of the cleaning device according to the second embodiment of the present technology can be applied to other embodiments of the present technology unless there is a particular technical contradiction.

[0069] 3. Third Embodiment (Cleaning Apparatus Example 3) As described above, the fluid 112 ejected from each of the plurality of nozzles 111 passes through the gaps between the tubes 231. This removes dirt that has accumulated in the gaps between the tubes 231.

[0070] However, for example, if the distance between the nozzle 111 and the tube group 23 or the angle of the nozzle 111 is inappropriate, the fluid sprayed from the nozzle 111 may collide with the tubes 231, resulting in an insufficient amount of fluid 112 passing through the gaps between the tubes 231. This may result in insufficient cleaning of dirt accumulated on the inside of the tube group 23 (the side facing the fan 3 in FIG. 1).

[0071] Therefore, the cleaning device 1 according to one embodiment of the present invention may further include a fluid amount measuring unit that measures the amount of fluid that has passed through the tube group 23. Then, based on the amount of fluid that has passed through the tube group 23, which is included in the information about the fluid, the driving unit 13 may change one or more selected from the group consisting of the distance between the nozzle 111 and the tube group 23, the angle of the nozzle 111, the interval between the nozzles 111, the moving speed of the spraying unit 11, and the pressure of the fluid.

[0072] This will be explained with reference to Figures 14 and 15. Figures 14 and 15 are views showing how cleaning is performed by the cleaning device 1 according to one embodiment of the present invention. Figure 14 is a view of the tube group 23 as seen from the outside (the side opposite to the side facing the fan 3 in Figure 1). Figure 15 is a view of the tube group 23 as seen from the inside.

[0073] As shown in Fig. 14, each of the multiple nozzles 111 injects fluid into the tube group 23. As shown in Fig. 15, for example, the distance between the nozzles 111 and the tube group 23 and the angle of the nozzles 111 are appropriate, so that a sufficient amount of fluid passes through the gaps between the tubes 231 and reaches the inside of the tube group 23.

[0074] The fluid amount measuring unit included in the cleaning device 1 measures the amount of fluid that has passed through the tube group 23 based on image data captured by, for example, a camera. The driving unit 13 changes one or more selected from the group consisting of the distance between the nozzle 111 and the tube group 23, the angle of the nozzle 111, the spacing between the nozzles 111, the moving speed of the spraying unit 11, and the pressure of the fluid, based on the amount of fluid that has passed through the tube group 23, which is included in the information about the fluid.

[0075] An example of the configuration of the cleaning device 1 will be described with reference to Fig. 16. Fig. 16 is a block diagram showing an example of the configuration of the cleaning device 1 according to one embodiment of the present invention. As shown in Fig. 16, the cleaning device 1 according to one embodiment of the present invention includes a fluid amount measuring unit 16.

[0076] An example of processing performed by the cleaning device 1 will be described with reference to Fig. 17. Fig. 17 is a flowchart showing an example of processing performed by the cleaning device 1 according to one embodiment of the present invention.

[0077] As shown in FIG. 17, in step S21, the fluid amount measuring unit 16 acquires image data of the fluid that has passed through the tube bank 23. In step S22, the fluid amount measuring unit 16 measures the amount of fluid based on the image data. Note that instead of the image data, for example, a value measured by a flow meter may be used. In step S23, the control device 4 compares the amount of fluid with a predetermined threshold value stored inside the control device 4. In step S24, when the amount of fluid is equal to or greater than the predetermined threshold value (step S23: Yes), the control device 4 instructs the driving unit 13 to drive. In step S25, the driving unit 13 changes one or more selected from the group consisting of the distance between the nozzle 111 and the tube group 23, the angle of the nozzle 111, the interval between the nozzles 111, the moving speed of the spraying unit 11, and the pressure of the fluid, in response to an instruction from the control device 4. This allows the cleaning device 1 to reduce unevenness in the cleaning effect.

[0078] The above description of the cleaning device according to the third embodiment of the present technology can be applied to other embodiments of the present technology unless there is a particular technical contradiction.

[0079] 4. Fourth Embodiment (Cleaning Apparatus Example 4) The fluid that passes through the tube group 23 is highly turbid because it contains dirt adhering to the tubes 231. However, as cleaning progresses, the amount of dirt contained in the fluid decreases, and the turbidity of the fluid decreases. In other words, the turbidity of the fluid is inversely proportional to the degree of cleaning. By measuring the turbidity of the fluid, it is possible to determine whether the cleaning is sufficient.

[0080] Therefore, the cleaning device 1 according to an embodiment of the present technology may further include a turbidity measurement unit that measures the turbidity of the fluid that has passed through the tube group 23. The driving unit 13 may change one or more selected from the group consisting of the distance between the nozzle 111 and the tube group 23, the angle of the nozzle 111, the interval between the nozzles 111, the movement speed of the spraying unit 11, and the pressure of the fluid, based on the turbidity of the fluid that has passed through the tube group 23, which is included in the information about the fluid.

[0081] An example of the configuration of the cleaning device 1 will be described with reference to Fig. 18. Fig. 18 is a block diagram showing an example of the configuration of the cleaning device 1 according to one embodiment of the present invention. As shown in Fig. 18, the cleaning device 1 according to one embodiment of the present invention includes a turbidity measurement unit 17. The turbidity measurement unit 17 can be realized by using a known turbidity meter or the like.

[0082] An example of processing performed by the cleaning apparatus 1 will be described with reference to Fig. 19. Fig. 19 is a flowchart showing an example of processing performed by the cleaning apparatus 1 according to one embodiment of the present invention.

[0083] As shown in FIG. 19, in step S31, the turbidity measuring unit 17 measures the turbidity of the fluid that has passed through the tube bank 23. In step S32, the control device 4 compares the turbidity of the fluid with a predetermined threshold value stored inside the control device 4. In step S33, when the turbidity of the fluid is equal to or less than the predetermined threshold value (step S32: Yes), the control device 4 instructs the driving unit 13 to drive. In step S34, the driving unit 13 changes one or more selected from the group consisting of the distance between the nozzle 111 and the tube group 23, the angle of the nozzle 111, the interval between the nozzles 111, the moving speed of the spraying unit 11, and the pressure of the fluid, in response to an instruction from the control device 4. This allows the cleaning device 1 to reduce unevenness in the cleaning effect.

[0084] Furthermore, if the rate at which turbidity decreases is faster than the standard value, there is a risk that the tube group 23 has not been sufficiently cleaned. In other words, when only the dirt adhering to the surface of the tube group 23 is cleaned and the dirt adhering to the inside of the tube group 23 is not sufficiently cleaned, the turbidity of the flowing water may decrease faster than the standard.

[0085] Therefore, the driving unit 13 may change one or more of the following: the distance between the nozzle 111 and the group of tubes 23, the angle of the nozzle 111, the spacing between the nozzles 111, the movement speed of the injection unit 11, and the pressure of the fluid, based on the change over time in turbidity of the fluid that has passed through the group of tubes 23, which information about the fluid includes.

[0086] An example of processing performed by the cleaning apparatus 1 will be described with reference to Fig. 20. Fig. 20 is a flowchart showing an example of processing performed by the cleaning apparatus 1 according to one embodiment of the present invention.

[0087] As shown in FIG. 20, in step S41, the turbidity measuring unit 17 measures the turbidity of the fluid that has passed through the tube bank 23. In step S42, the control device 4 compares the rate of decrease in the turbidity of the fluid with a predetermined threshold value stored inside the control device 4. In step S43, when the rate at which the turbidity of the fluid decreases is equal to or less than the predetermined threshold (step S42: Yes), the control device 4 instructs the driving unit 13 to drive. In step S44, the driving unit 13 changes one or more selected from the group consisting of the distance between the nozzle 111 and the tube group 23, the angle of the nozzle 111, the interval between the nozzles 111, the moving speed of the spraying unit 11, and the pressure of the fluid, in response to an instruction from the control device 4. This allows the cleaning device 1 to reduce unevenness in the cleaning effect.

[0088] The above description of the cleaning device according to the fourth embodiment of the present technology can be applied to other embodiments of the present technology unless there is a particular technical contradiction.

[0089] In addition to this, the configurations given in the above embodiments can be selected or changed as appropriate without departing from the spirit of the present invention.

[0090] The present invention can also be configured as follows. [1] an ejection unit that ejects a fluid onto a tube group in which a plurality of tubes are arranged; a moving mechanism that moves the ejection unit along the tube group; a drive unit that drives the ejection unit and the movement mechanism, The ejection unit has a plurality of nozzles, A cleaning device in which the drive unit changes one or more selected from the group consisting of the distance between the nozzle and the tube group, the angle of the nozzle, the spacing between the nozzles, the movement speed of the spray unit, and the pressure of the fluid, based on information related to the tube group and / or the fluid. [2] an input unit into which design data including information about the tube bundle is input; [1] The cleaning device according to the present invention. [3] Each of the plurality of nozzles is inclined at approximately the same angle with respect to the thickness direction of the tube bundle. [1] or [2]. [4] The apparatus further includes a fluid amount measuring unit that measures the amount of the fluid that has passed through the pipe group, the information about the fluid includes the amount; A cleaning device according to any one of [1] to [3]. [5] The apparatus further includes a turbidity measuring unit for measuring the turbidity of the fluid that has passed through the tube bundle, the information about the fluid includes the turbidity; A cleaning device according to any one of [1] to [4]. [6] the information about the fluid includes a change in the turbidity over time; [5] The cleaning device according to [5]. [7] The moving mechanism is a lateral movement mechanism that moves the injection unit in a radial direction of the pipe; a longitudinal movement mechanism that moves the injection part in the longitudinal direction of the pipe, the distance between the lateral movement mechanism and the tube bank is substantially constant; the distance between the longitudinal movement mechanism and the tube bank is substantially constant; [1] to [6]. A cleaning device according to any one of [1] to [6]. [8] The fluid is high-pressure water of 2 MPa or more. [1] to [7]. A cleaning device according to any one of [1] to [7]. [9] The tube is a fin tube for a heat exchanger. [1] to [8]. A cleaning device according to any one of [1] to [8]. [Explanation of symbols]

[0091] 1 Cleaning equipment 11 Injection part 111 Nozzle 112 Fluid 12 Moving mechanism 121 Lateral movement mechanism 122 Vertical movement mechanism 123 Support member 13 Drive unit 14 Input section 15 Adjustment section 16 Fluid volume measurement section 17 Turbidity measurement unit 2 Condenser 21 Steam piping 22 Condenser panel 23 tube group 231 tube 24 Drain water piping 3 Fans 4. Control device 100 Air-cooled Condensing System

Claims

1. an ejection unit that ejects a fluid onto a tube group in which a plurality of tubes are arranged; a moving mechanism that moves the ejection unit along the tube group; a drive unit that drives the ejection unit and the movement mechanism; an input unit to which design data including information about the tube bank is input, The ejection unit has a plurality of nozzles, a driving unit that changes one or more selected from the group consisting of a distance between the nozzle and the tube group, an angle of the nozzle, a spacing between the nozzles, a moving speed of the spraying unit, and a pressure of the fluid, based on information about the tube group and / or information about the fluid included in the design data input to the input unit.

2. Each of the plurality of nozzles is inclined at approximately the same angle with respect to the thickness direction of the tube bundle. The cleaning device according to claim 1 .

3. The apparatus further includes a fluid amount measuring unit that measures the amount of the fluid that has passed through the pipe group, the information about the fluid includes the amount; 3. The cleaning device according to claim 1 or 2.

4. The apparatus further includes a turbidity measuring unit for measuring the turbidity of the fluid that has passed through the tube bundle, the information about the fluid includes the turbidity; A cleaning device according to any one of claims 1 to 3.

5. the information about the fluid includes a change in the turbidity over time; The cleaning device according to claim 4.

6. The moving mechanism is a lateral movement mechanism that moves the injection unit in a radial direction of the pipe; a longitudinal movement mechanism that moves the injection part in the longitudinal direction of the pipe, the distance between the lateral movement mechanism and the tube bank is substantially constant; the distance between the longitudinal movement mechanism and the tube bank is substantially constant; A cleaning device according to any one of claims 1 to 5.

7. The fluid is high-pressure water of 2 MPa or more. A cleaning device according to any one of claims 1 to 6.

8. The tube is a fin tube for a heat exchanger. A cleaning device according to any one of claims 1 to 7.

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