Cooling tower anti-freezing water distribution system and adjusting method

Abstract

The invention relates to the technical field of steam turbine cooling towers in thermal power plants, in particular to an anti-freezing water distribution system for a cooling tower and an adjusting method, and aims to solve the problems of high cost and freezing of circulating water on a tower wall caused by mismatching of a cold source and a heat source in the cooling tower in the prior art. The anti-freezing water distribution system of the cooling tower comprises a spraying unit and a water distribution unit, wherein the spraying unit is arranged below a filler layer of the cooling tower; the circulating water mother pipe is connected with the spraying unit through a first pipeline, the circulating water mother pipe is provided with a hole for the spraying unit to be connected in, one end of the first pipeline is communicated with the water inlet of the spraying unit, and the other end of the first pipeline is communicated with the hole; and the second pipeline unit is communicated with the first pipeline, and the second pipeline unit is used for introducing the residual circulating water in the circulating water main pipe into a water pool of the cooling tower. The anti-freezing water distribution system for the cooling tower and the adjusting method are used for being matched with a cold source and a heat source in the cooling tower, and circulating water is prevented from being frozen on the tower wall.

Description

Technical Field

[0001] The present disclosure relates to the technical field of steam turbine cooling towers in thermal power plants, and in particular to a cooling tower antifreeze water distribution system and an adjustment method. Background Art

[0002] During thermal power generation, wet-cooled steam turbines in thermal power plants typically use natural draft cooling towers to cool circulating water. A circulating water pump draws circulating water from a suction well and delivers it to the condenser's water side. After absorbing heat discharged from the turbine into the condenser, the circulating water enters the cooling tower for cooling before returning to the suction well for further circulation. Natural draft cooling towers typically utilize a single trench, single vertical shaft water inlet system and an internal and external zone water distribution system.

[0003] Currently, there are several main methods for preventing freezing in thermal power plant cooling towers: First, installing water retaining eaves and water retaining plates. Installing a windshield at the cooling tower's air inlet reduces the air inlet area and improves insulation inside the tower, but installation requires significant manpower and material resources. Some windshields also need to be removed when the unit is operating at high load, posing a significant labor drain and safety hazard. Second, installing antifreeze pipes on the inner side of the main water tank's outer edge to spray water. However, the water flow is limited, and the water curtain's density and width are insufficient, limiting its antifreeze capability. Third, installing an electric curtain-style windshield prevents freezing by controlling the airflow into the water tower through adjustable roller shutter openings. However, this requires significant investment.

[0004] Therefore, how to solve the problem of high cost and mismatch between the cold source and the heat source in the cooling tower in the existing technology, which causes the circulating water to freeze on the tower wall, is one of the important issues that need to be solved urgently in this field. Summary of the Invention

[0005] In view of this, the embodiments of the present disclosure provide a cooling tower antifreeze water distribution system and adjustment method to solve the problems in the prior art of high cost and mismatch between the cold source and the heat source in the cooling tower, which causes the circulating water to freeze on the tower wall.

[0006] According to one aspect of the present disclosure, a cooling tower antifreeze water distribution system is provided, the cooling tower antifreeze water distribution system comprising:

[0007] Spray unit, the spray unit is arranged below the packing layer of the cooling tower;

[0008] A circulating water jelly pipe is connected to the spray unit through a first pipe. The circulating water jelly pipe is provided with an orifice for accessing the spray unit. One end of the first pipe is connected to the water inlet of the spray unit, and the other end of the first pipe is connected to the orifice.

[0009] A second pipeline unit, the second pipeline unit is connected to the first pipeline, and the second pipeline unit is used to introduce the remaining circulating water in the circulating water main pipe into the water pool of the cooling tower;

[0010] A regulating unit is provided on the first pipe and is used to regulate the flow rate and pressure of the circulating water flowing into the spray unit;

[0011] The control unit is arranged on the first pipeline, the control unit is connected to the regulating unit signal, and the control unit is used to adjust the opening of the regulating unit.

[0012] Furthermore, according to an aspect of the present disclosure, the cooling tower antifreeze water distribution system includes two operating modes.

[0013] According to the cooling tower antifreeze water distribution system in one aspect of the present disclosure, when the cooling tower antifreeze water distribution system is in the first working mode, the circulating water in the spray unit directly exchanges heat with the air, and the remaining circulating water flows directly into the water pool of the cooling tower through the second pipeline unit for evaporative cooling.

[0014] According to the cooling tower antifreeze water distribution system in one aspect of the present disclosure, when the cooling tower antifreeze water distribution system is in the second operating mode, all circulating water flows through the filler layer for cooling.

[0015] According to the cooling tower antifreeze water distribution system according to one aspect of the present disclosure, the spray unit is fixed to the secondary beam of the cooling tower by a double fixing mechanism.

[0016] According to an aspect of the present disclosure, the cooling tower antifreeze water distribution system, the double fixing mechanism includes:

[0017] A first fixing assembly, the first fixing assembly comprising an annular clamp arranged around the spray unit, the annular clamp being fixedly connected to the embedded steel plate at the bottom of the secondary beam of the cooling tower through a first connecting piece;

[0018] A second fixing assembly, the second fixing assembly includes a diagonal brace bracket, one end of the diagonal brace bracket is fixedly connected to the first pipe, and the other end of the diagonal brace bracket is fixedly connected to the side of the secondary beam of the cooling tower through a second connecting piece;

[0019] The first fixing assembly and the second fixing assembly form a three-dimensional fixing structure to limit the horizontal and vertical displacements of the spray unit.

[0020] According to an aspect of the cooling tower antifreeze water distribution system of the present disclosure, the annular clamp includes a first part and a second part, both ends of the first part and both ends of the second part are provided with connecting ear plates, and the connecting ear plates are provided with through holes for the first connecting member to pass through, and the first connecting member is used to connect the first part and the second part.

[0021] According to an antifreeze water distribution system for a cooling tower according to one aspect of the present disclosure, the diagonal brace bracket includes a support member and two connecting ends, one connecting end is fixedly connected to the support member, and the other connecting end is provided with an oblong through hole, through which the installation angle of the diagonal brace bracket is adjusted.

[0022] According to the cooling tower antifreeze water distribution system according to one aspect of the present disclosure, the first pipe is a carbon steel pipe.

[0023] According to another aspect of the present disclosure, a cooling tower antifreeze water distribution adjustment method is provided, which is applied to the above-mentioned cooling tower antifreeze water distribution system. The cooling tower antifreeze water distribution adjustment method includes:

[0024] When the cooling tower antifreeze water distribution system is in the first working mode, the spray unit is in working state, part of the circulating water flows into the spray unit through the first pipe and exchanges heat with the air below the packing layer, and the remaining circulating water flows directly into the water pool of the cooling tower through the second pipe unit for evaporative cooling;

[0025] The opening of the regulating unit is adjusted according to the control unit to control the flow rate and pressure of the circulating water in the spray unit;

[0026] When the cooling tower antifreeze water distribution system is in the second working mode, all circulating water flows through the filler layer for cooling.

[0027] At least one of the above-mentioned technical solutions adopted in the embodiments of the present disclosure can achieve the following beneficial effects: In the above-mentioned cooling tower antifreeze water distribution system, the circulating water main pipe is connected to the spray unit through a first pipe. The circulating water main pipe is provided with an orifice for the spray unit to connect. One end of the first pipe is connected to the water inlet of the spray unit, and the other end of the first pipe is connected to the orifice. The circulating water main pipe serves as the main transmission pipe for circulating water, transporting circulating water from the cooling system to each spray unit. The circulating water is transported to the spray unit through the orifice and the first pipe. This connection method ensures that the circulating water can be stably and reliably supplied to the spray unit. The arrangement of the first pipe allows the position and number of the spray units to be flexibly adjusted according to actual needs, thereby improving the adaptability and scalability of the system. Based on this, the spray unit is located below the packing layer of the cooling tower. When the circulating water flows into the spray unit, it can be evenly sprayed on the packing layer, so that the circulating water is fully in contact with the air, enhancing the heat exchange effect, and effectively reducing the temperature of the circulating water. At the same time, through a reasonable spraying method in winter, the packing layer can be prevented from freezing, thereby playing an antifreeze role. On this basis, the regulating unit is installed on the first pipe to adjust the flow rate and pressure of the circulating water flowing into the spray unit. It can accurately adjust the flow rate and pressure of the circulating water flowing into the spray unit. By adjusting the flow rate, the spray water volume can be flexibly adjusted according to the actual operating requirements of the cooling tower to ensure the optimal balance between cooling effect and antifreeze effect. Adjusting the pressure can ensure the spraying effect of the spray unit, so that the circulating water can be sprayed at an appropriate pressure, better contact with the air for heat exchange, and at the same time avoid uneven spraying or ineffective coverage of the packing layer due to excessively high or low pressure, thereby preventing localized freezing.

[0028] In addition, a control unit is provided on the first pipe, and the control unit is connected to the regulating unit signal, and the control unit is used to adjust the opening of the regulating unit. By being connected to the regulating unit signal, the opening of the regulating unit can be adjusted according to preset parameters and actual operating conditions. Automated control is achieved, and the flow and pressure of circulating water can be monitored and adjusted in real time, thereby improving the operating efficiency and stability of the system. The control unit can automatically adjust the regulating unit according to factors such as different ambient temperatures and the load of the cooling tower, so that the system is always in the best operating state, reducing manual intervention and labor intensity. At the same time, it also improves the accuracy and reliability of the antifreeze water distribution system, and effectively prevents the cooling tower from freezing and other malfunctions in winter. This effectively solves the problem of high cost in the prior art and the mismatch between the cold source and the heat source in the cooling tower, which causes the circulating water to freeze on the tower wall.

[0029] Secondly, the second piping unit, connected to the first pipe, is used to direct the remaining circulating water in the circulating water main into the cooling tower's sump. This helps maintain stable water pressure within the circulating water main, preventing excessive system pressure caused by water accumulation, while also effectively utilizing the remaining circulating water. This effectively addresses the existing issues of high cost and the mismatch between the cooling and heat sources in the cooling tower, which can lead to circulating water freezing on the tower walls. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0031] Figure 1 FIG2 is a schematic diagram of the system structure of the cooling tower antifreeze water distribution system according to an embodiment of the present disclosure;

[0032] Figure 2 FIG2 is a schematic diagram showing the structure of the first part of the annular clamp according to the embodiment of the present disclosure;

[0033] Figure 3 FIG2 is a schematic structural diagram of an oblique support bracket according to an embodiment of the present disclosure;

[0034] Figure 4 It is a flow chart illustrating a method for adjusting water distribution for antifreeze of a cooling tower according to an embodiment of the present disclosure.

[0035] Reference numerals:

[0036] 1-Cooling tower, 2-Spray unit, 3-Circulating water pipe, 4-Regulating unit, 5-Second pipeline unit, 6-First part, 7-Ear plate, 8-Diagonal support bracket. DETAILED DESCRIPTION

[0037] The following describes embodiments of the present disclosure in more detail with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are for illustrative purposes only and are not intended to limit the scope of protection of the present disclosure.

[0038] It should be understood that the various steps described in the method embodiments of the present disclosure may be performed in different orders and / or in parallel. In addition, the method embodiments may include additional steps and / or omit the steps shown. The scope of the present disclosure is not limited in this respect.

[0039] The term "including" and its variations used in this document are open inclusions, that is, "including but not limited to". The term "based on" means "based at least in part on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments". The relevant definitions of other terms will be given in the description below. It should be noted that the concepts of "first", "second", etc. mentioned in this disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0040] It should be noted that the modifications of "one" and "multiple" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, they should be understood as "one or more".

[0041] The names of the messages or information exchanged between multiple devices in the embodiments of the present disclosure are only used for illustrative purposes and are not used to limit the scope of these messages or information.

[0042] During thermal power generation, wet-cooled steam turbines in thermal power plants typically use natural draft cooling towers to cool circulating water. A circulating water pump draws circulating water from a suction well and delivers it to the condenser's water side. After absorbing heat discharged from the turbine into the condenser, the circulating water enters the cooling tower for cooling before returning to the suction well for further circulation. Natural draft cooling towers typically utilize a single trench, single vertical shaft water inlet system and an internal and external zone water distribution system.

[0043] Currently, there are several main methods for preventing freezing in thermal power plant cooling towers: First, installing water retaining eaves and water retaining plates. Installing a windshield at the cooling tower's air inlet reduces the air inlet area and improves insulation inside the tower, but installation requires significant manpower and material resources. Some windshields also need to be removed when the unit is operating at high load, posing a significant labor drain and safety hazard. Second, installing antifreeze pipes on the inner side of the main water tank's outer edge to spray water. However, the water flow is limited, and the water curtain's density and width are insufficient, limiting its antifreeze capability. Third, installing an electric curtain-style windshield prevents freezing by controlling the airflow into the water tower through adjustable roller shutter openings. However, this requires significant investment.

[0044] To address the above problems, the exemplary embodiments of the present disclosure provide a cooling tower antifreeze water distribution system and adjustment method to solve the problems in the prior art of high cost and mismatch between the cold source and the heat source in the cooling tower, which causes the circulating water to freeze on the tower wall.

[0045] A cooling tower antifreeze water distribution system according to an embodiment of the present disclosure will be described in detail below with reference to the accompanying drawings.

[0046] Figure 1 FIG2 is a schematic diagram of the system structure of the cooling tower antifreeze water distribution system according to the embodiment of the present disclosure, as shown in FIG2. Figure 1 As shown, the cooling tower antifreeze water distribution system includes: a spray unit 2, which is located below the packing layer of the cooling tower 1; a circulating water main pipe 3, which is connected to the spray unit 2 via a first pipe. The circulating water main pipe 3 has an orifice for the spray unit 2 to connect. One end of the first pipe is connected to the water inlet of the spray unit 2, and the other end of the first pipe is connected to the orifice; a second pipe unit 5, which is connected to the first pipe and is used to introduce the remaining circulating water in the circulating water main pipe 3 into the water tank of the cooling tower 1; a regulating unit 4, which is located on the first pipe. It is understood that the regulating unit 4 can be an electric regulating valve, etc., which are not listed here. Taking the electric regulating valve as an example, the electric regulating valve is located on the first pipe to adjust the flow rate and pressure of the circulating water flowing into the spray unit 2; a control unit, which is located on the first pipe. It is understood that the control unit is a control system, such as a distributed control system. The control unit is connected to the regulating unit 4 for signal communication and is used to adjust the opening of the regulating unit 4.

[0047] In practical applications, such as Figure 1As shown, the circulating water main pipe 3 is connected to the spray units 2 via a first pipe. The circulating water main pipe 3 has an orifice for the spray units 2 to access. One end of the first pipe is connected to the water inlet of the spray unit 2, and the other end of the first pipe is connected to the orifice. The circulating water main pipe 3 serves as the main pipeline for circulating water, delivering circulating water from the cooling system to each spray unit 2. The circulating water is delivered to the spray units 2 through the orifice and the first pipe. This connection ensures a stable and reliable supply of circulating water to the spray units 2. The first pipe arrangement allows for flexible adjustment of the location and number of spray units 2 according to actual needs, improving the adaptability and scalability of the system. For this reason, the spray units 2 are located below the packing layer of the cooling tower 1. Once the circulating water flows into the spray units 2, it is evenly sprayed onto the packing layer, ensuring sufficient contact between the circulating water and the air, enhancing heat exchange and effectively reducing the temperature of the circulating water. Furthermore, a suitable spraying method can prevent freezing of the packing layer in winter, providing an anti-freeze effect. On this basis, a regulating unit 4 is provided on the first pipe to regulate the flow rate and pressure of the circulating water flowing into the spray unit 2. This allows for precise adjustment of both the flow rate and pressure of the circulating water flowing into the spray unit 2. By regulating the flow rate, the spray water volume can be flexibly adjusted according to the actual operating requirements of the cooling tower, ensuring an optimal balance between cooling and antifreeze effects. Regulating the pressure ensures the spraying effect of the spray unit 2, allowing the circulating water to be sprayed at an appropriate pressure for better heat exchange with the air. This prevents uneven spraying or ineffective coverage of the packing layer due to excessively high or low pressure, thereby preventing localized freezing.

[0048] In addition, a control unit is provided on the first pipe, and the control unit is connected to the regulating unit 4 by signal, and the control unit is used to adjust the opening of the regulating unit 4. By being connected to the regulating unit 4 by signal, the opening of the regulating unit 4 can be adjusted according to preset parameters and actual operating conditions. Automated control is achieved, and the flow and pressure of the circulating water can be monitored and adjusted in real time, thereby improving the operating efficiency and stability of the system. The control unit can automatically adjust the regulating unit 4 according to factors such as different ambient temperatures and the load of the cooling tower, so that the system is always in the best operating state, reducing manual intervention and labor intensity. At the same time, it also improves the accuracy and reliability of the antifreeze water distribution system, and effectively prevents the cooling tower from freezing and other malfunctions in winter. This effectively solves the problem of high cost in the prior art and the mismatch between the cold source and the heat source in the cooling tower, which causes the circulating water to freeze on the tower wall.

[0049] Secondly, the second pipeline unit 5 is connected to the first pipeline. The second pipeline unit 5 is used to introduce the remaining circulating water in the circulating water main pipe 3 into the water pool of the cooling tower 1. This helps to maintain the water pressure in the circulating water main pipe 3 stable, avoid excessive system pressure due to water accumulation, and effectively utilize the remaining circulating water.

[0050] Exemplarily, the antifreeze water distribution system of the cooling tower includes two working modes. When the antifreeze water distribution system of the cooling tower 1 is in the first working mode, it can be understood that the above-mentioned first working mode is actually when the ambient temperature is below -10°C. In this case, the circulating water in the spray unit 2 directly exchanges heat with the air, and the remaining circulating water flows directly into the water pool of the cooling tower 1 through the second pipe unit 5 for evaporative cooling. When the antifreeze water distribution system of the cooling tower 1 is in the second working mode, it should be understood that the above-mentioned second working mode is actually when the ambient temperature rises to above 0°C. In this environment, all the circulating water flows through the packing layer for cooling. After the circulating water temperature rises, it is cooled by the packing again, and the circulating water temperature is controlled in real time to prevent the cooling tower from freezing.

[0051] For example, Figure 2 FIG2 is a schematic diagram of the first part of the structure of the annular clamp according to the embodiment of the present disclosure. Figure 3 FIG2 is a schematic diagram of a structure of a diagonal support bracket according to an embodiment of the present disclosure, such as Figure 2 - Figure 3 As shown, the spray unit is fixed to the secondary beam of the cooling tower via a dual fixing mechanism. This dual fixing mechanism includes: a first fixing assembly, which includes an annular clamp surrounding the spray unit and fixedly connected to the embedded steel plate at the bottom of the cooling tower's secondary beam via a first connector; and a second fixing assembly, which includes a diagonal brace bracket, one end of which is fixedly connected to the first pipe, and the other end of which is fixedly connected to the side of the cooling tower's secondary beam via a second connector. The first and second fixing assemblies form a three-dimensional fixing structure that limits the horizontal and vertical displacement of the spray unit.

[0052] In practical applications, such as Figure 2 - Figure 3 As shown, the annular clamp surrounds the spray unit, evenly distributing its weight across the cooling tower's secondary beam, preventing deformation or displacement due to its own weight or water impact. The first connector is fixedly connected to the embedded steel plate at the bottom of the secondary beam. The secure connection between the embedded steel plate and the secondary beam provides a reliable support point for the spray unit, ensuring its vertical stability and effectively preventing it from sinking or shaking. Furthermore, the annular clamp design precisely positions the spray unit, maintaining it in the designed installation position and preventing horizontal shifting during installation or operation. This ensures the accurate relative positioning of the spray unit and other components, facilitating uniform spraying and efficient heat exchange.

[0053] In addition, one end of the diagonal brace 8 is fixedly connected to the first pipe, and the other end is fixedly connected to the side of the cooling tower's secondary beam, forming a diagonal support structure. This structure provides additional horizontal support for the first pipe and spray unit, counteracting horizontal sway or displacement caused by water flow, wind load, or other external forces, further enhancing the stability of the entire system. The diagonal brace 8 transfers part of the load borne by the first pipe and spray unit to the side of the cooling tower's secondary beam, reducing the burden on the first pipe and spray unit themselves. It also more evenly distributes the load on the secondary beam, preventing damage to the secondary beam caused by excessive local loads and extending the service life of the cooling tower structure. Furthermore, the first and second fixing assemblies cooperate to form a three-dimensional fixed structure. This structure can fully restrict the displacement of the spray unit in both horizontal and vertical directions, effectively suppressing both minor sway and major displacement. Even in complex operating environments, such as strong winds, water impact, or equipment vibration, it ensures that the spray unit remains in the correct position, ensuring the normal operation of the cooling tower's antifreeze water distribution system.

[0054] Exemplarily, since the first portion and the second portion of the annular clamp are identical, as shown in FIG. Figure 2 As shown, Figure 2 The annular clamp is shown as having a first portion 6 and a second portion. Connecting lugs 7 are provided at both ends of the first and second portions. These lugs 7 have through-holes for a first connector, which connects the first and second portions. A diagonal brace 8 comprises a support member and two connecting ends. One connecting end is fixedly connected to the support member, while the other has an oblong through-hole, which adjusts the installation angle of the diagonal brace 8.

[0055] In practice, the annular clamp consists of a first portion 6 with a connecting lug and a second portion, connected by a first connector that passes through a through-hole in the connecting lug. This design facilitates installation and removal of the annular clamp. The arrangement of the connecting lug 7 and the first connector ensures a tight connection between the first and second portions of the annular clamp, forming a complete annular structure that securely surrounds and holds the spray unit. The through-hole in the connecting lug 7, in conjunction with the first connector, can withstand certain tensile and shear forces, ensuring that the annular clamp does not loosen due to external forces during cooling tower operation, providing a stable securement of the spray unit. Furthermore, an oblong through-hole is provided on one connecting end of the diagonal brace 8, allowing the installation angle of the diagonal brace to be adjusted. This design accommodates varying installation locations and space requirements, as well as variations in the cooling tower structure or other component layouts. This angle adjustability ensures that the diagonal brace provides optimal support under varying operating conditions. Whether in the installation process of a new cooling tower or in the renovation or maintenance of an existing cooling tower, the angle of the diagonal brace can be flexibly adjusted according to actual conditions to adapt to various complex on-site conditions, thereby improving the versatility and adaptability of the diagonal brace and further enhancing the stability and reliability of the entire double fixing mechanism.

[0056] For example, the first pipeline is a carbon steel pipeline. Carbon steel has high strength and hardness, can withstand the pressure and impact of circulating water, and is not prone to deformation or rupture, ensuring the stability and reliability of the pipeline system. During the flow of circulating water, the water may carry some tiny particles. Carbon steel pipelines have good wear resistance and can resist the erosion of these particles, extending the pipeline's service life, maintaining the pipeline's normal water transmission capacity, and preventing the pipeline's inner diameter from decreasing due to wear, which would affect the circulating water flow and pressure.

[0057] The exemplary embodiment of the present disclosure provides a cooling tower antifreeze water distribution adjustment method, which is applied to the above-mentioned cooling tower antifreeze water distribution system. Figure 4 FIG. 1 is a flow chart illustrating a method for adjusting water distribution for cooling tower antifreeze according to an embodiment of the present disclosure. Figure 4 As shown, the cooling tower antifreeze water distribution adjustment method includes:

[0058] S401: When the cooling tower antifreeze water distribution system is in the first working mode, the spray unit is in working state, part of the circulating water flows into the spray unit through the first pipe and exchanges heat with the air below the packing layer, and the remaining circulating water flows directly into the water pool of the cooling tower through the second pipe unit for evaporative cooling.

[0059] S402: adjusting the opening of the regulating unit according to the control unit to control the flow rate and pressure of the circulating water in the spray unit.

[0060] S403: When the cooling tower antifreeze water distribution system is in the second working mode, all circulating water flows through the packing layer for cooling.

[0061] Compared with the prior art, the beneficial effects of the cooling tower antifreeze water distribution adjustment method provided by the embodiment of the present disclosure refer to the beneficial effects of the cooling tower antifreeze water distribution system, which will not be repeated here.

[0062] The above descriptions are merely some embodiments of the present disclosure and an illustration of the technical principles employed. Those skilled in the art should understand that the scope of disclosure involved in the present disclosure is not limited to the technical solutions formed by a specific combination of the above-mentioned technical features, but also encompasses other technical solutions formed by any combination of the above-mentioned technical features or their equivalents without departing from the above-mentioned disclosed concepts. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features with similar functions disclosed in the present disclosure.

[0063] Although some specific embodiments of the present disclosure have been described in detail by way of examples, those skilled in the art will appreciate that the above examples are for illustrative purposes only and are not intended to limit the scope of the present disclosure. Those skilled in the art will appreciate that modifications may be made to the above embodiments without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.

Claims

1. A cooling tower antifreeze water distribution system, characterized in that: The cooling tower antifreeze water distribution system includes: A spray unit, the spray unit being arranged below the packing layer of the cooling tower; a circulating water jelly pipe, wherein the circulating water jelly pipe is connected to the spray unit via a first pipe, the circulating water jelly pipe is provided with an orifice for accessing the spray unit, one end of the first pipe is connected to the water inlet of the spray unit, and the other end of the first pipe is connected to the orifice; a second pipe unit, the second pipe unit being in communication with the first pipe, and being used for introducing the remaining circulating water in the circulating water main pipe into the water pool of the cooling tower; a regulating unit, the regulating unit being provided on the first pipe and being used for regulating the flow rate and pressure of the circulating water flowing into the spray unit; A control unit is provided on the first pipeline, the control unit is connected to the regulating unit by signal, and the control unit is used to adjust the opening of the regulating unit.

2. The cooling tower antifreeze water distribution system according to claim 1, characterized in that: The cooling tower antifreeze water distribution system includes two working modes.

3. The cooling tower antifreeze water distribution system according to claim 2, characterized in that: When the cooling tower antifreeze water distribution system is in the first working mode, the circulating water in the spray unit directly exchanges heat with the air, and the remaining circulating water directly flows into the water pool of the cooling tower through the second pipeline unit for evaporative cooling.

4. The cooling tower antifreeze water distribution system according to claim 2, characterized in that: When the cooling tower antifreeze water distribution system is in the second working mode, all circulating water flows through the packing layer for cooling.

5. The cooling tower antifreeze water distribution system according to claim 1, characterized in that: The spray unit is fixed on the secondary beam of the cooling tower through a double fixing mechanism.

6. The cooling tower antifreeze water distribution system according to claim 5, characterized in that: The dual fixing mechanism comprises: a first fixing assembly, the first fixing assembly comprising an annular clamp disposed around the spray unit, the annular clamp being fixedly connected to the embedded steel plate at the bottom of the secondary beam of the cooling tower via a first connecting member; a second fixing assembly, the second fixing assembly comprising a diagonal brace bracket, one end of the diagonal brace bracket being fixedly connected to the first pipe, and the other end of the diagonal brace bracket being fixedly connected to a side surface of the secondary beam of the cooling tower via a second connecting member; The first fixing assembly and the second fixing assembly form a three-dimensional fixing structure to limit the horizontal and vertical displacements of the spray unit.

7. The cooling tower antifreeze water distribution system according to claim 6, characterized in that: The annular clamp includes a first part and a second part, and both ends of the first part and the second part are provided with connecting ear plates. The connecting ear plates are provided with through holes for the first connecting member to pass through, and the first connecting member is used to connect the first part and the second part.

8. The cooling tower antifreeze water distribution system according to claim 6, characterized in that: The diagonal brace bracket includes a support member and two connecting ends, one connecting end is fixedly connected to the support member, and the other connecting end is provided with an oblong through hole, through which the installation angle of the diagonal brace bracket is adjusted.

9. The cooling tower antifreeze water distribution system according to claim 1, characterized in that: The first pipeline is a carbon steel pipeline.

10. A cooling tower antifreeze water distribution adjustment method, applied to the cooling tower antifreeze water distribution system according to any one of claims 1 to 9, characterized in that: The cooling tower antifreeze water distribution adjustment method comprises: When the cooling tower antifreeze water distribution system is in the first working mode, the spray unit is in working state, part of the circulating water flows into the spray unit through the first pipe and exchanges heat with the air below the packing layer, and the remaining circulating water flows directly into the water pool of the cooling tower through the second pipe unit for evaporative cooling; Adjusting the opening of the regulating unit according to the control unit to control the flow rate and pressure of the circulating water in the spray unit; When the cooling tower antifreeze water distribution system is in the second working mode, all circulating water flows through the filler layer for cooling.

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