Water treatment system and water treatment method

Abstract

The present application relates to the technical field of water treatment in a cooling system for cooling a heat source, and in particular to a water treatment system and a water treatment method. A water treatment system is used in a cooling system for cooling a heat source; it includes a water treatment unit and a cooling unit; the cooling unit is connected to the heat source and is used to cool the heat source; the water treatment unit has multiple liquid inlet ends, at least one of which is connected to the liquid return end of the cooling unit; at least another liquid inlet end is connected to a water source; the liquid outlet end of the water treatment unit is connected to the liquid inlet end of the cooling unit. The water treatment unit is used to soften the water introduced into the cooling unit to prevent the water from clogging the pipes in the cooling unit due to long-term circulation, which can improve the working efficiency and service life of the cooling unit; in addition, the water treatment unit has a bactericidal effect, which reduces pipe corrosion and algae growth caused by bacterial growth in tap water, and ensures the safe operation of the cooling unit.

Description

Technical Field

[0001] The present application relates to the technical field of water treatment in a cooling system for cooling a heat source, and in particular to a water treatment system and a water treatment method. Background Art

[0002] For large public buildings and data centers, liquid cooling systems are usually used for cooling; however, the water quality will become increasingly turbid as the liquid cooling system circulates for a long time. The turbidity of the water quality seriously affects the working efficiency and service life of the liquid cooling system.

[0003] At present, dosing devices are conventionally used to solve the above problems, using chemical agents to change water quality; however, traditional automatic dosing devices rely on chemical agents, are not environmentally friendly, and require frequent monitoring of water quality to adjust parameters, have high technical maintenance requirements, and are low in safety.

[0004] Therefore, there is an urgent need for a water treatment system and a water treatment method to solve the technical problems existing in the prior art to a certain extent. Summary of the invention

[0005] The purpose of the present application is to provide a water treatment system and a water treatment method, so as to solve the technical problems of environmental unfriendliness and low safety performance caused by using a dosing device to change the water quality in a liquid cooling system in the prior art to a certain extent.

[0006] The present application provides a water treatment system, which is used in a cooling system for cooling a heat source; the system comprises a water treatment unit and a cooling unit;

[0007] The cooling unit is in communication with the heat source and is used to cool the heat source;

[0008] The water treatment unit has a plurality of liquid inlet ends, at least one of which is connected to the liquid return end of the cooling unit; and at least another liquid inlet end is connected to a water source;

[0009] The liquid outlet of the water treatment unit is communicated with the liquid inlet of the cooling unit.

[0010] In the above technical solution, further, the water treatment unit includes a water collecting tank, a conductivity sensor, a liquid level switch, a liquid level meter, a softening water component and a drain valve;

[0011] One end of the water collecting tank is connected to the liquid return end of the cooling unit and the other end is connected to the water source through a first pipeline, and the softening water component and the liquid level switch are sequentially arranged in the first pipeline along the direction from the water source to the water collecting tank;

[0012] The water collecting tank is connected to the liquid inlet end of the cooling unit through a second pipeline, the liquid level meter is arranged at the top of the water collecting tank, the drain valve is arranged at the bottom of the water collecting tank, and the detection end of the conductivity sensor is arranged in the water collecting tank for detecting the conductivity of the liquid in the water collecting tank.

[0013] In the above technical solution, further, the water softening component includes a resin tank and a salt box;

[0014] The resin tank is close to the water source, and the salt box is close to the water collecting tank.

[0015] In the above technical solution, further, the water treatment unit also includes a sterilization component;

[0016] The sterilization component is arranged in the second pipeline.

[0017] In the above technical solution, further, the water treatment unit also includes a third pipeline, and the third pipeline is connected in parallel to the sterilization component;

[0018] The third pipeline is provided with a normally closed fourth stop valve.

[0019] In the above technical solution, further, the cooling unit includes a plate heat exchanger, a cooling tower, a liquid inlet pipeline and a liquid return pipeline;

[0020] One end of the liquid return pipeline is connected to the heat source, and the other end is connected to the water collecting tank; the plate heat exchanger and the cooling tower are sequentially arranged on the liquid return pipeline from the heat source to the water collecting tank;

[0021] One end of the liquid inlet pipeline is connected to the heat source and the other end is connected to the second pipeline.

[0022] In the above technical solution, further, the number of the cooling units is two;

[0023] One end of the liquid return pipeline of the two cooling units is connected to the heat source and the other end is connected to the water collecting tank;

[0024] One end of the liquid inlet pipelines of the two cooling units is connected to the heat source and the other end is connected to the second pipeline.

[0025] In the above technical solution, further, a first check valve and a water meter are provided on the first pipeline and between the salt box and the water collecting tank;

[0026] The first check valve is close to the salt tank, and the water meter is close to the water collecting tank;

[0027] An electric ball valve is also arranged on the first pipeline and close to the water source.

[0028] In the above technical solution, further, the return liquid pipeline is provided with a first stop valve, a first gate valve, a safety valve, a first temperature sensor, an exhaust valve and a second gate valve in sequence from the heat source to the cooling tower;

[0029] The liquid inlet pipeline is provided with a second temperature sensor, a filter, a first pressure sensor, a water pump, a second check valve, a second stop valve, a flow meter, a third gate valve and a third stop valve in sequence from the water treatment unit to the heat source.

[0030] The present application also provides a water treatment system, using the water treatment system, comprising the following steps:

[0031] Cooling steps: Turn on the water pump and use the plate heat exchanger and cooling tower to cool the heat source;

[0032] The first water treatment step in the pipeline: the water source passes through the resin tank and the salt tank in sequence, and the resin tank and the salt tank are used to soften the water input into the water collecting tank;

[0033] Sewage discharge steps: The water source continuously injects water into the water collection tank; the conductivity sensor detects the conductivity of the liquid in the water tank, and the liquid level meter is used to detect the liquid level of the water collection tank;

[0034] When the conductivity detected by the conductivity sensor is greater than a first preset range, and when the liquid level meter detects that the liquid level is greater than a second preset range, the drain valve opens to discharge the sewage in the water collection tank;

[0035] When the liquid level meter detects that the liquid level is less than the second preset range, the drain valve is closed;

[0036] When the conductivity detected by the conductivity sensor is greater than a first preset range, the sewage discharge is stopped;

[0037] The water treatment step in the second pipeline: the sterilization component is used to sterilize the liquid passing through the second pipeline, so as to introduce the sterilized liquid into the cooling unit.

[0038] Compared with the prior art, the beneficial effects of this application are:

[0039] The present application provides a water treatment system, which is used in a cooling system for cooling a heat source; the system comprises a water treatment unit and a cooling unit;

[0040] The cooling unit is in communication with the heat source and is used to cool the heat source;

[0041] The water treatment unit has a plurality of liquid inlet ends, at least one of which is connected to the liquid return end of the cooling unit; and at least another liquid inlet end is connected to a water source;

[0042] The liquid outlet of the water treatment unit is communicated with the liquid inlet of the cooling unit.

[0043] Specifically, the water treatment unit is used to soften the water introduced into the cooling unit to prevent the water from clogging the pipes in the cooling unit due to long-term circulation, thereby improving the working efficiency and service life of the cooling unit; in addition, the water treatment unit has a bactericidal effect, reducing pipe corrosion and algae growth caused by bacterial growth in tap water, thereby ensuring the safe operation of the cooling unit.

[0044] The present application also provides a water treatment method, which uses the water treatment system and includes the following steps:

[0045] Cooling steps: Turn on the water pump and use the plate heat exchanger and cooling tower to cool the heat source;

[0046] The first water treatment step in the pipeline: the water source passes through the resin tank and the salt tank in sequence, and the resin tank and the salt tank are used to soften the water input into the water collecting tank;

[0047] Sewage discharge steps: The water source continuously injects water into the water collection tank; the conductivity sensor detects the conductivity of the liquid in the water tank, and the liquid level meter is used to detect the liquid level of the water collection tank;

[0048] When the conductivity detected by the conductivity sensor is greater than a first preset range, and when the liquid level meter detects that the liquid level is greater than a second preset range, the drain valve opens to discharge the sewage in the water collection tank;

[0049] When the liquid level meter detects that the liquid level is less than the second preset range, the drain valve is closed;

[0050] When the conductivity detected by the conductivity sensor is greater than a first preset range, the sewage discharge is stopped;

[0051] The water treatment step in the second pipeline: the sterilization component is used to sterilize the liquid passing through the second pipeline, so as to introduce the sterilized liquid into the cooling unit.

[0052] In summary, since the water treatment method is based on a water treatment system, it has all the beneficial effects of the water treatment system and will not be elaborated on in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0054] Figure 1This is a schematic diagram of the overall structure of the water treatment system provided in Example 1 of the present application;

[0055] Figure 2 for Figure 1 A magnified view of the structure at center A;

[0056] Figure 3 for Figure 1 A magnified view of the structure at B in the middle;

[0057] Figure 4 This is a schematic diagram of the overall structure of the water treatment system provided in Example 2 of the present application.

[0058] Reference numerals:

[0059] 3-heat source; 5-water collecting tank; 6-conductivity sensor; 7-liquid level switch; 8-liquid level meter; 9-resin tank; 10-drain valve; 11-first pipeline; 12-salt box; 13-sterilization component; 14-second pipeline; 15-third pipeline; 16-fourth stop valve; 17-plate heat exchanger; 18-cooling tower; 19-liquid inlet pipeline; 20-liquid return pipeline; 21-first check valve; 22-water meter; 23-electric ball valve; 24-first stop valve; 25-first gate valve; 26-safety valve; 27-first temperature sensor; 28-exhaust valve; 29-second gate valve; 30-second temperature sensor; 31-filter; 32-first pressure sensor; 33-water pump; 34-second check valve; 35-second stop valve; 36-flow meter; 37-third gate valve; 38-third stop valve; 39-water source.

[0060] 40-sixth stop valve; 41-fifth stop valve; 43-fourth pipeline; 44-fifth pipeline; 45-liquid cooling cabinet. DETAILED DESCRIPTION

[0061] The technical solution of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0062] The components of the embodiments of the present application generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed, but merely represents the selected embodiments of the present application.

[0063] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of this application.

[0064] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0065] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0066] Embodiment 1

[0067] Combination Figure 1-Figure 3 As shown, in this embodiment, a water treatment system is provided, which is used in a cooling system for cooling a heat source 3; the water treatment system includes a water treatment unit and a cooling unit; wherein the cooling unit is connected to the heat source 3, and the cooling unit is used to cool the heat source 3; wherein the water treatment unit has multiple liquid inlet ends, at least one liquid inlet end is connected to the liquid return end of the cooling unit; at least another liquid inlet end is connected to a water source 39; the liquid outlet end of the water treatment unit is connected to the liquid inlet end of the cooling unit.

[0068] Specifically, the water treatment unit includes a water collecting tank 5, a conductivity sensor 6, a liquid level switch 7, a liquid level meter 8, a softening water component and a drain valve 10; one end of the water collecting tank 5 is connected to the liquid return end of the cooling unit to recover the liquid flowing in the cooling unit; the other end of the water collecting tank 5 is connected to the water source 39 through the first pipeline 11, and the water source 39 can inject water into the water collecting tank 5 through the first pipeline 11; further, the softening water component and the liquid level switch 7 are sequentially arranged in the first pipeline 11 along the direction from the water source 39 to the water collecting tank 5.

[0069] Furthermore, the water softening component includes a resin tank 9 and a salt box 12, the resin tank 9 is close to the water source 39, and the salt box 12 is close to the water collecting tank 5. The resin tank 9 and the salt box 12 can soften the water introduced into the water collecting tank 5, prevent the water from clogging the pipeline in the cooling unit when circulating for a long time, and improve the working efficiency and service life of the cooling unit; in addition, compared with the descaling method using chemical agents in the prior art, the present application is more environmentally friendly.

[0070] Furthermore, a first check valve 21 and a water meter 22 are provided on the first pipeline 11 and between the salt box 12 and the water collecting tank 5; the first check valve 21 is close to the salt box 12, and the water meter 22 is close to the water collecting tank 5; an electric ball valve 23 is also provided on the first pipeline 11 and close to the water source 39. The first check valve 21 is used to prevent the water in the water collecting tank 5 from flowing back to the water source 39.

[0071] Specifically, the water collecting tank 5 is connected to the liquid inlet end of the cooling unit through the second pipeline 14, and a sterilization component 13 is arranged on the second pipeline 14. The principle of the sterilization component 13 is ultraviolet sterilization. The specific structural form of the sterilization component 13 can be various, which will not be elaborated in detail here, and it is understandable to those skilled in the art, for example, an ultraviolet sterilization tube; the sterilization component 13 arranged here can further achieve the sterilization and disinfection effect on the water introduced into the cooling unit, reduce the pipeline corrosion and algae growth caused by the growth of bacteria in the tap water, and ensure the safe operation of the cooling unit.

[0072] Specifically, the liquid level meter 8 is disposed on the top of the water collecting tank 5 , and the liquid level meter 8 can detect the water level in the water collecting tank 5 .

[0073] Specifically, the drain valve 10 is disposed at the bottom of the water collecting tank 5 , and the sewage from the cooling unit in the water collecting tank 5 can be discharged by opening the drain valve 10 .

[0074] Specifically, the detection end of the conductivity sensor 6 is arranged in the water collecting tank 5 , and the conductivity sensor 6 is used to detect the conductivity of the liquid in the water collecting tank 5 .

[0075] Furthermore, the drain valve 10 is in communication with the liquid level meter 8 and the conductivity sensor 6 respectively.

[0076] Furthermore, the water treatment unit also includes a third pipeline 15, which is connected in parallel to the sterilization component 13; a normally closed fourth stop valve 16 is provided on the third pipeline 15, and the third pipeline 15 is only used when the water treatment system is in operation and maintenance.

[0077] In summary, in actual use, the water source 39 can continuously inject water into the water collecting tank 5; the conductivity sensor detects the conductivity of the liquid in the water tank, and the liquid level meter 8 is used to detect the liquid level of the water collecting tank 5; when the conductivity detected by the conductivity sensor is greater than 500μS / cm, and when the liquid level meter 8 detects that the liquid level is greater than 80cm, the drain valve 10 opens to discharge the sewage in the water collecting tank 5; when the liquid level meter 8 detects that the liquid level is less than 20cm, the drain valve 10 is closed; when the conductivity detected by the conductivity sensor is less than 500μS / cm, stop draining and circulate the cooling unit.

[0078] In this embodiment, the cooling unit includes a plate heat exchanger 17, a cooling tower 18, a liquid inlet pipeline 19 and a liquid return pipeline 20; one end of the liquid return pipeline 20 is connected to the heat source 3, and the other end is connected to the water collecting tank 5; the plate heat exchanger 17 and the cooling tower 18 are arranged in sequence on the liquid return pipeline 20 from the heat source 3 to the water collecting tank 5; one end of the liquid inlet pipeline 19 is connected to the heat source 3 and the other end is connected to the second pipeline 14.

[0079] Specifically, there are two cooling units; one end of the return liquid pipeline 20 of the two cooling units is connected to the heat source 3 and the other end is connected to the water collecting tank 5; one end of the inlet liquid pipeline 19 of the two cooling units is connected to the heat source 3 and the other end is connected to the second pipeline 14.

[0080] Specifically, a first stop valve 24, a first gate valve 25, a safety valve 26, a first temperature sensor 27, an exhaust valve 28 and a second gate valve 29 are sequentially arranged on the return liquid pipeline 20 from the heat source 3 to the cooling tower 18; a second temperature sensor 30, a filter 31, a first pressure sensor 32, a water pump 33, a second check valve 34, a second stop valve 35, a flow meter 36, a third gate valve 37 and a third stop valve 38 are sequentially arranged on the inlet liquid pipeline 19 from the water treatment unit to the heat source 3.

[0081] In summary, in actual use, the water output by the water treatment unit can be used for circulation in the two cooling units respectively, which greatly improves the heat exchange efficiency for the heat source 3.

[0082] Embodiment 2

[0083] Combination Figure 4 As shown, in this embodiment, a water treatment system is provided, which is used in the cooling system of a liquid cooling cabinet 45 (the liquid cooling cabinet 45 here can be understood as a kind of heat source); the water treatment system includes a water treatment unit and a cooling unit; wherein the cooling unit is connected to the heat source, and the cooling unit is used to cool the heat source; wherein the water treatment unit has multiple liquid inlet ends, at least one liquid inlet end is connected to the liquid return end of the cooling unit; at least another liquid inlet end is connected to the water source; the liquid outlet end of the water treatment unit is connected to the liquid inlet end of the cooling unit.

[0084] Specifically, the water treatment unit includes a water collecting tank, a conductivity sensor, a liquid level switch, a liquid level meter, a softening water component and a drain valve; one end of the water collecting tank is connected to the liquid return end of the cooling unit to recover the liquid flowing in the cooling unit; the other end of the water collecting tank is connected to the water source through a first pipeline, and the water source can inject water into the water collecting tank through the first pipeline; further, the softening water component and the liquid level switch are sequentially arranged in the first pipeline along the direction from the water source to the water collecting tank.

[0085] Furthermore, the water softening component includes a resin tank and a salt box, the resin tank is close to the water source, and the salt box is close to the water collection tank. The resin tank and the salt box can soften the water introduced into the water collection tank, preventing the water from clogging the pipes in the cooling unit due to long-term circulation, and can improve the working efficiency and service life of the cooling unit; in addition, compared with the descaling method using chemical agents in the prior art, the present application is more environmentally friendly.

[0086] Furthermore, a first check valve and a water meter are provided on the first pipeline and between the salt box and the water collecting tank; the first check valve is close to the salt box, and the water meter is close to the water collecting tank; an electric ball valve is provided on the first pipeline and close to the water source. The first check valve is used to prevent the water in the water collecting tank from flowing back to the water source.

[0087] Specifically, the water collecting tank is connected to the liquid inlet end of the cooling unit through a second pipeline, and a sterilization component is arranged on the second pipeline. The principle of the sterilization component is ultraviolet sterilization. The specific structural form of the sterilization component can be various, which will not be elaborated in detail here. It is understandable to those skilled in the art, for example, an ultraviolet sterilization tube; the sterilization component arranged here can further achieve the sterilization and disinfection effect on the water introduced into the cooling unit, reduce the pipeline corrosion and algae growth caused by the growth of bacteria in tap water, and ensure the safe operation of the cooling unit.

[0088] Specifically, the liquid level meter is arranged on the top of the water collecting tank, and the liquid level meter can detect the water level in the water collecting tank.

[0089] Specifically, the drain valve is arranged at the bottom of the water collecting tank, and the sewage from the cooling unit in the water collecting tank can be discharged by opening the drain valve.

[0090] Specifically, the detection end of the conductivity sensor is arranged in the water collecting tank, and the conductivity sensor is used to detect the conductivity of the liquid in the water collecting tank.

[0091] Furthermore, the drain valve is communicated with the liquid level meter and the conductivity sensor respectively.

[0092] Furthermore, the water treatment unit also includes a fourth pipeline 43, which is connected in parallel to the sterilization component; a normally closed sixth stop valve 40 is provided on the fourth pipeline 43, and the fourth pipeline 43 is only used when the water treatment system is in operation and maintenance.

[0093] In summary, in actual use, the water source can continuously inject water into the water collecting tank; the conductivity sensor detects the conductivity of the liquid in the water tank, and the liquid level meter is used to detect the liquid level of the water collecting tank; when the conductivity detected by the conductivity sensor is greater than 500μS / cm, and when the liquid level meter detects that the liquid level is greater than 80cm, the drain valve opens to discharge the sewage in the water collecting tank; when the liquid level meter detects that the liquid level is less than 20cm, the drain valve closes; when the conductivity detected by the conductivity sensor is less than 500μS / cm, stop draining and circulate the cooling unit.

[0094] In this embodiment, the cooling unit includes a plate heat exchanger, a cooling tower, a liquid inlet pipeline and a liquid return pipeline; one end of the liquid return pipeline is connected to the heat source, and the other end is connected to the water collecting tank; the plate heat exchanger and the cooling tower are arranged in sequence on the liquid return pipeline from the heat source to the water collecting tank; one end of the liquid inlet pipeline is connected to the heat source and the other end is connected to the second pipeline.

[0095] Specifically, there are two cooling units; one end of the return liquid pipeline of the two cooling units is connected to the heat source and the other end is connected to the water collecting tank; one end of the inlet liquid pipeline of the two cooling units is connected to the heat source and the other end is connected to the second pipeline.

[0096] Specifically, a first stop valve, a first gate valve, a safety valve, a first temperature sensor, an exhaust valve and a second gate valve are sequentially arranged on the return liquid pipeline from the heat source to the cooling tower; a second temperature sensor, a filter, a first pressure sensor, a water pump, a second check valve, a second stop valve, a flow meter, a third gate valve and a third stop valve are sequentially arranged on the inlet liquid pipeline from the water treatment unit to the heat source.

[0097] More specifically, the two cooling units are respectively a first cooling unit and a second cooling unit; the water treatment system also includes a fourth pipeline 43 and a fifth pipeline 44, one end of the fourth pipeline 43 is connected to the return liquid pipeline between the plate heat exchanger and the liquid cooling cabinet 45 in the first cooling unit, and the other end is connected to the return liquid pipeline between the plate heat exchanger and the liquid cooling cabinet 45 in the second cooling unit; one end of the fifth pipeline 44 is connected to the liquid inlet pipeline between the plate heat exchanger and the liquid cooling cabinet 45 in the first cooling unit, and the other end is connected to the liquid inlet pipeline between the plate heat exchanger and the liquid cooling cabinet 45 in the second cooling unit; further, a sixth stop valve 40 is provided on the fourth pipeline 43, and a fifth stop valve 41 is provided on the fifth pipeline 44.

[0098] In summary, on the one hand, by shutting off the fifth stop valve 41 and the sixth stop valve 40, the first cooling unit and the second cooling unit can be switched for use. The two serve as backup for each other and can be switched between each other during operation and maintenance and regular inspections. On the other hand, the water collecting tank aggregates the cooling water supply of the cooling tower in the first cooling unit and the second cooling unit, and uniformly provides cooling water. As a water storage summary, it can support the emergency water supply for a period of time when the system is short of water or leaking. On the other hand, the water collecting tank also integrates the linkage function of drainage and water replenishment, in which the drain valve can drain the water for the first cooling unit and the second cooling unit, and the liquid level meter and liquid level switch therein can perform quantitative water replenishment.

[0099] Embodiment 3

[0100] In this embodiment, a water treatment system is provided, and the water treatment system includes the following steps:

[0101] Cooling steps: Turn on the water pump and use the plate heat exchanger and cooling tower to cool the heat source;

[0102] The first water treatment step in the pipeline: the water source passes through the resin tank and the salt tank in sequence, and the resin tank and the salt tank are used to soften the water input into the water collecting tank;

[0103] Sewage discharge steps: The water source continuously injects water into the water collection tank; the conductivity sensor detects the conductivity of the liquid in the water tank, and the liquid level meter is used to detect the liquid level of the water collection tank;

[0104] When the conductivity detected by the conductivity sensor is greater than 500μS / cm, and when the liquid level meter detects that the liquid level is greater than 80cm, the drain valve opens to discharge the sewage in the water collection tank;

[0105] When the liquid level meter detects that the liquid level is less than 20cm, the drain valve is closed;

[0106] When the conductivity detected by the conductivity sensor is less than 500μS / cm, the sewage discharge is stopped;

[0107] The water treatment step in the second pipeline: the sterilization component is used to sterilize the liquid passing through the second pipeline, so as to introduce the sterilized liquid into the cooling unit.

[0108] In summary, the water collecting tank has a built-in conductivity sensor. For example, if the conductivity is greater than 500μS / cm, the electric drain valve is opened, and the electric drain valve is closed after the water in the water collecting tank is drained. The value of the liquid level gauge can be set as the closing amount of the electric drain valve. As the liquid level drops, the liquid level switch automatically opens, and softened water is added to the water tank until the liquid level is reached. The water collecting tank can be used as a temporary water replenishment during water outages, and also as an intermediate water source for the cooling unit. The water treatment unit can provide water quality treatment, softened water, and automatic water replenishment for the cooling unit. The resin tank and the salt tank are connected as a soft water treatment device, which can soften tap water, reduce the hardness of water, and avoid scaling of cooling towers and pipelines. The pipeline ultraviolet sterilization is a sterilization component, which can be used as a sterilization component for the entire circulation system to reduce pipeline corrosion and algae growth caused by bacterial growth in tap water.

[0109] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A water treatment system, used in a cooling system for cooling a heat source; characterized in that: It includes a water treatment unit and a cooling unit; The cooling unit is in communication with the heat source and is used to cool the heat source; The water treatment unit has a plurality of liquid inlet ends, at least one of which is connected to the liquid return end of the cooling unit; and at least another liquid inlet end is connected to a water source; The liquid outlet of the water treatment unit is connected to the liquid inlet of the cooling unit; The water treatment unit includes a water collection tank, a conductivity sensor, a liquid level switch, a liquid level meter, a softening water component and a drain valve; One end of the water collecting tank is connected to the liquid return end of the cooling unit and the other end is connected to the water source through a first pipeline, and the softening water component and the liquid level switch are sequentially arranged in the first pipeline along the direction from the water source to the water collecting tank; The water collecting tank is connected to the liquid inlet end of the cooling unit through a second pipeline, the liquid level meter is arranged at the top of the water collecting tank, the drain valve is arranged at the bottom of the water collecting tank, and the detection end of the conductivity sensor is arranged in the water collecting tank for detecting the conductivity of the liquid in the water collecting tank; The water softening component includes a resin tank and a salt box; the resin tank is close to the water source, and the salt box is close to the water collecting tank; The water treatment unit further comprises a sterilization component; the sterilization component is arranged in the second pipeline; The water treatment unit further comprises a third pipeline, the third pipeline being connected in parallel to the sterilization component; a normally closed fourth stop valve is arranged on the third pipeline; The cooling unit includes a plate heat exchanger, a cooling tower, a liquid inlet pipeline and a liquid return pipeline; One end of the liquid return pipeline is connected to the heat source, and the other end is connected to the water collecting tank; the plate heat exchanger and the cooling tower are sequentially arranged on the liquid return pipeline from the heat source to the water collecting tank; One end of the liquid inlet pipeline is connected to the heat source and the other end is connected to the second pipeline; The number of the cooling units is two; One end of the liquid return pipeline of the two cooling units is connected to the heat source and the other end is connected to the water collecting tank; One end of the liquid inlet pipelines of the two cooling units is connected to the heat source and the other end is connected to the second pipeline.

2. The water treatment system according to claim 1, characterized in that: A first check valve and a water meter are also provided on the first pipeline and between the salt box and the water collecting tank; The first check valve is close to the salt tank, and the water meter is close to the water collecting tank; An electric ball valve is also arranged on the first pipeline and close to the water source.

3. The water treatment system according to claim 2, characterized in that: The liquid return pipeline is provided with a first stop valve, a first gate valve, a safety valve, a first temperature sensor, an exhaust valve and a second gate valve in sequence from the heat source to the cooling tower; The liquid inlet pipeline is provided with a second temperature sensor, a filter, a first pressure sensor, a water pump, a second check valve, a second stop valve, a flow meter, a third gate valve and a third stop valve in sequence from the water treatment unit to the heat source.

4. A water treatment method, based on the water treatment system according to any one of claims 1 to 3, characterized in that: The following steps are involved: Cooling steps: Turn on the water pump and use the plate heat exchanger and cooling tower to cool the heat source; The first water treatment step in the pipeline: the water source passes through the resin tank and the salt tank in sequence, and the resin tank and the salt tank are used to soften the water input into the water collecting tank; Sewage discharge steps: The water source continuously injects water into the water collection tank; the conductivity sensor detects the conductivity of the liquid in the water tank, and the liquid level meter is used to detect the liquid level of the water collection tank; When the conductivity detected by the conductivity sensor is greater than a first preset range, and when the liquid level meter detects that the liquid level is greater than a second preset range, the drain valve opens to discharge the sewage in the water collection tank; When the liquid level meter detects that the liquid level is less than the second preset range, the drain valve is closed; When the conductivity detected by the conductivity sensor is less than a first preset range, the sewage discharge is stopped; The water treatment step in the second pipeline: the sterilization component is used to sterilize the liquid passing through the second pipeline, so as to introduce the sterilized liquid into the cooling unit.

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