Cooling water supply system

Abstract

According to the cooling water supply system, the water drainage pipeline and the water supplementing pipeline are arranged to be connected with the water tank, and meanwhile the water quality detector is arranged to detect the water quality of water in the water tank online in real time, so that when the water quality is abnormal, the water drainage pipeline and the water supplementing pipeline are communicated, and water in the water tank can be drained through the water drainage pipeline; the water replenishing pipeline can be used for introducing fresh and clean water into the water tank to carry out water body self-circulation so as to realize water quality replacement and ensure that the water quality of the water body in the water tank is always kept in a qualified state, so that the circulating water pump runs to convey low-temperature water with good water quality in the water tank to the cooler through the cold supply pipeline to absorb heat and reduce the temperature of the cooler; and the temperature after heat absorption and temperature rise returns to the refrigeration assembly for cooling and then returns to the water tank, so that pollution blockage or corrosion leakage in the cooler caused by the water quality problem of the circulating cooling water is improved, and the stable operation of the system is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of equipment cooling, in particular to a cooling water supply system. BACKGROUND

[0002] In the common compressor cooler, the cooling water is indirectly cooled by circulating water (a circulating water system is shared by multiple heat exchangers) in the indirect heat exchange cooling process. Due to unstable water quality of the cooling water, the cooler is prone to corrosion and leakage. CONTENT

[0003] The present application aims to provide a cooling water supply system, which can improve the internal pollution or corrosion leakage of the cooler caused by the water quality problem of the circulating cooling water, and ensure stable operation of the system.

[0004] The embodiment of the present application can be implemented as follows:

[0005] In a first aspect, the utility model provides a cooling water supply system, including circulating water tank, circulating water pump, refrigeration assembly, cold supply pipeline, drainage pipeline, water supplement pipeline, backwater pipeline, water delivery pipeline and water quality detector;

[0006] The circulating water tank, the circulating water pump and the cold supply pipeline are sequentially connected, and a water outlet end of the cold supply pipeline is used for being connected with a cold water inlet of the cooler;

[0007] A water inlet end of the backwater pipeline is used for being connected with a hot water outlet of the cooler, and a water outlet end of the backwater pipeline is connected with the refrigeration assembly;

[0008] The water delivery pipeline is connected with the refrigeration assembly and the water tank;

[0009] The drainage pipeline and the water supplement pipeline are connected with the water tank;

[0010] The water quality detector is arranged in the water tank and is used for detecting water quality of water in the water tank;

[0011] The water supplement pipeline and the drainage pipeline can be turned on according to a detection result of the water quality detector to replace the water in the water tank.

[0012] In an optional embodiment, the water quality detector is used for detecting pH, turbidity and / or conductivity of the water in the water tank.

[0013] In an optional embodiment, the drainage pipeline includes a drainage pipe and a drainage valve arranged in the drainage pipe, a water inlet end of the drainage pipe is connected to a bottom of the water tank, and the drainage valve can be opened or closed according to the detection result of the water quality detector.

[0014] In an optional embodiment, the water supplement pipeline comprises a water supplement pipe and a water supplement valve arranged on the water supplement pipe, a water inlet end of the water supplement pipe is connected to a top of the water tank, and the water supplement valve can be opened or closed according to a detection result of the water quality detector.

[0015] In an optional embodiment, the refrigeration assembly comprises a double-curved tower, a filter and a heat exchanger, a cold side inlet of the double-curved tower, the filter and the heat exchanger is connected in sequence, and a cold side outlet of the heat exchanger is connected to the water delivery pipeline.

[0016] The water return pipeline is connected to a hot side inlet of the heat exchanger, and a hot side outlet of the heat exchanger is used to connect to external cooling equipment.

[0017] In an optional embodiment, the refrigeration assembly further comprises a condenser, a hot side outlet of the heat exchanger is connected to the condenser through a pipeline, and the condenser is used to connect to external cooling equipment.

[0018] In an optional embodiment, the cooling water supply system further comprises a water return bypass, a water inlet end of the water return bypass is connected to the water return pipeline, and a water outlet end of the water return bypass is connected to the water delivery pipeline.

[0019] In an optional embodiment, the number of the circulating water pumps is at least two, and each of the circulating water pumps is connected in parallel between the water tank and the cooling pipeline.

[0020] In an optional embodiment, the cooling water supply system further comprises a pump return pipeline, a water inlet end of the pump return pipeline is connected to the cooling pipeline, and a water outlet end of the pump return pipeline is connected to the water tank.

[0021] In an optional embodiment, the cooling water supply system further comprises a controller, and the controller is electrically connected to the drain pipeline, the water supplement pipeline and the circulating water pump.

[0022] The beneficial effects of the embodiments of the present application include, for example:

[0023] The water quality detector is arranged to detect the water quality of the water in the water tank in real time, so that when the water quality is abnormal, the drain pipeline and the water supplement pipeline are conducted, the drain pipeline can drain the water in the water tank, and the water supplement pipeline can introduce fresh and clean water into the water tank, so that the water is self-circulated to replace the water quality, so that the water quality of the water in the water tank is always kept in a qualified state, so that the circulating water pump can transport the low-temperature water with good water quality in the water tank to the cooler through the cooling pipeline to absorb heat, reduce the temperature of the cooler, and then the temperature after heat absorption and temperature rise is cooled in the refrigeration assembly and then sent back to the water tank, so as to improve the problem of internal pollution or corrosion leakage of the cooler caused by the water quality of the circulating cooling water, and then ensure the stable operation of the system. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the specific embodiments or prior art of the present application, the drawings needed in the description of the specific embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0025] Figure 1 The structural principle diagram of the cooling water supply system of the embodiment of the present application.

[0026] Icon: 10-water tank; 11-circulating water pump; 12-water quality detector; 13-pressure transmitter; 14-cooler; 20-cooling pipeline; 21-cooling main pipe; 22-cooling branch pipe; 30-backwater pipeline; 31-backwater main pipe; 32-backwater branch pipe; 40-refrigeration assembly; 41-double curve tower; 42-filter; 43-heat exchanger; 44-condenser; 50-water delivery pipeline; 51-temperature sensor; 60-drain pipeline; 61-drain pipe; 62-drain valve; 70-water supplement pipeline; 71-water supplement pipe; 72-water supplement valve; 80-pump backflow pipeline; 81-pump backflow pipe; 82-pump backflow valve; 90-backwater bypass; 91-backwater bypass pipe; 92-bypass valve. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, not all embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the application provided in the drawings is not intended to limit the scope of the application claimed, but merely represents selected embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the application.

[0029] It should be noted that similar reference numbers and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0030] In the description of the application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the application is usually placed, and are merely for the convenience of describing the application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application. In addition, the terms "first", "second", "third", and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0031] In addition, the terms "horizontal", "vertical", "overhanging", and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that it is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0032] In the description of the application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "provided", "mounted", "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0033] The following will be described in conjunction with the accompanying drawings Figure 1 Some embodiments of the application will be described in detail. The following embodiments and features in the embodiments can be combined with each other without conflict.

[0034] The embodiment of the application discloses a cooling water supply system, which comprises a circulating water tank 10, a circulating water pump 11, a refrigeration assembly 40, a cold supply pipeline 20, a drainage pipeline 60, a water supplement pipeline 70, a backwater pipeline 30, a water delivery pipeline 50 and a water quality detector 12.

[0035] The circulating water tank 10, the circulating water pump 11 and the cooling water supply pipeline 20 are connected in sequence, and the water outlet of the cooling water supply pipeline is connected with the cold water inlet of the cooler 14;

[0036] The water inlet of the return water pipeline 30 is connected with the hot water outlet of the cooler 14, and the water outlet of the return water pipeline 30 is connected with the refrigeration assembly 40;

[0037] The water supply pipeline 50 is connected with the refrigeration assembly 40 and the water tank 10;

[0038] The water discharge pipeline 60 and the water replenishment pipeline 70 are connected with the water tank 10;

[0039] The water quality detector 12 is arranged in the water tank 10 and is used to detect the water quality of the water body in the water tank 10;

[0040] The water discharge pipeline 60 and the water replenishment pipeline 70 can be turned on according to the detection result of the water quality detector 12 to replace the water body in the water tank 10.

[0041] In the embodiment, the water discharge pipeline 60 and the water replenishment pipeline 70 are connected with the water tank 10, and the water quality detector 12 is arranged to detect the water quality of the water body in the water tank 10 in real time. When the water quality is abnormal, the water discharge pipeline 60 and the water replenishment pipeline 70 are turned on, the water discharge pipeline 60 can discharge the water in the water tank 10, and the water replenishment pipeline 70 can supply fresh and clean water to the water tank 10 to realize self-circulation of the water body and replace the water quality, so that the water quality of the water body in the water tank 10 is always kept in a qualified state. Thus, the circulating water pump 11 can transport the low-temperature water with good water quality in the water tank 10 to the cooler 14 through the cooling water supply pipeline 20 to absorb heat, reduce the temperature of the cooler 14, and then return the temperature of the cooler 14 to the refrigeration assembly 40 for cooling and then return to the water tank 10, thereby improving the internal pollution or corrosion leakage of the cooler 14 caused by the water quality problem of the circulating cooling water, and ensuring the stable operation of the system.

[0042] Specifically, the water quality detector 12 is used to detect the pH, turbidity and / or conductivity of the water body in the water tank 10. That is, when the pH, turbidity and / or conductivity of the water body in the water tank 10 are abnormal, the water discharge pipeline 60 and the water replenishment pipeline 70 are turned on to replace the water quality. The pH, turbidity and / or conductivity reflect the water quality, for example, when at least one of the conditions of pH>9 or <7, turbidity≥20NTU and conductivity≥2000μS / cm is met, it is determined that the water quality is unqualified, and the water discharge pipeline 60 and the water replenishment pipeline 70 are turned on to replace the water quality until the pH, turbidity and conductivity return to normal.

[0043] Of course, these conditions and the receiving, processing and control signal sending of the detection signal can be realized by a program segment stored in and run by the controller in the prior art, which is generally known in the art and will not be described in detail. Specifically, the cooling water supply system further comprises a controller electrically connected to the drain pipeline 60, the water replenishment pipeline 70 and the circulating water pump 11. In this way, the circulating water used by the chiller 14 is reformed into a separate self-circulating system. Through online monitoring of water quality, once the water quality is unqualified (pH > 9 or < 7, turbidity ≥ 20 NTU, conductivity ≥ 2000 μS / cm), the water quality can be replaced through the PLC interlocking automatic control of the drain and water replenishment system, so as to ensure that the water quality of the circulating water system for the compressor always remains qualified, and avoid internal fouling or corrosion leakage of the heat exchanger 43 due to unqualified pH, turbidity and conductivity, thereby ensuring long-term stable operation of the chiller 14.

[0044] In detail, the number of the circulating water pumps 11 is at least two, and each circulating water pump 11 is connected in parallel between the water tank 10 and the cooling supply pipeline 20, so as to avoid the situation that the cooling cannot be normally operated due to the failure of one circulating water pump 11, thereby improving the system stability.

[0045] The cooling supply pipeline 20 comprises a cooling supply main pipeline 21 and a plurality of cooling supply branch pipelines 22 connected to the cooling supply main pipeline 21. The water inlet end of the cooling supply main pipeline 21 is connected to the circulating water pump 11, and the water outlet end of each cooling supply branch pipeline 22 is used to be connected to the cold water inlet of one chiller 14.

[0046] The cooling water supply system further comprises a pump return pipeline 80, the water inlet end of which is connected to the cooling supply pipeline 20, and the water outlet end of which is connected to the top of the water tank 10, thereby playing a pressure relief role to maintain the stability of the system pipeline pressure. For example, the pump return pipeline 80 can be selectively conducted or blocked according to the water pressure on the downstream side of the circulating water pump 11.

[0047] Specifically, the pump return pipeline 80 comprises a pump return pipeline 81 and a pump return valve 82 arranged on the pump return pipeline 81. The water inlet end of the pump return pipeline 81 is connected to the cooling supply pipeline 20, and the water outlet end of the pump return pipeline 81 is connected to the water tank 10. A pressure transmitter 13 is arranged on the outlet side of the circulating water pump 11, and the pressure transmitter 13 is electrically connected to the controller. The pressure transmitter 13 is used to detect the water pressure in real time. Under the control of the controller, the pump return valve 82 can be opened or closed according to the detection result of the pressure transmitter 13. In this way, when the water pressure is high, the pump return valve 82 is opened to play a pressure relief role, thereby maintaining the stability of the system pipeline pressure.

[0048] The water drainage pipeline 60 comprises a water drainage pipe 61 and a water drainage valve 62 arranged on the water drainage pipe 61. The water inlet end of the water drainage pipe 61 is connected to the bottom of the water tank 10. The water drainage valve 62 can be opened or closed according to the detection result of the water quality detector 12. The water supply pipeline 70 comprises a water supply pipe 71 and a water supply valve 72 arranged on the water supply pipe 71. The water inlet end of the water supply pipe 71 is connected to the top of the water tank 10. The water supply valve 72 can be opened or closed according to the detection result of the water quality detector 12. That is, the water drainage valve 62 and the water supply valve 72 are electrically connected with the controller. The controller can control the opening or closing of the water drainage valve 62 and the water supply valve 72 according to the detection result.

[0049] The refrigeration assembly 40 comprises a double-curved tower 41, a filter 42 and a heat exchanger 43. The cold side inlet of the double-curved tower 41, the filter 42 and the heat exchanger 43 are sequentially connected. The cold side outlet of the heat exchanger 43 is connected with the water supply pipeline 50. The water return pipeline 30 is connected with the hot side inlet of the heat exchanger 43. The hot side outlet of the heat exchanger 43 is used to connect with external cooling equipment. In this way, the warm water flowing out of the cooler 14 after absorbing the heat of the cooler 14 is guided to the hot side of the heat exchanger 43. A part of the heat is absorbed by the cold water provided by the double-curved tower 41 to be cooled, and then is delivered to the external cooling equipment for use. At the same time, the cold side absorbs a certain amount of heat to ensure that the temperature of the water entering the water tank 10 is not too low, so as to ensure that the cold water delivered to the cooler 14 through the cold water supply pipeline 20 has a proper temperature, and the compressor is stably operated at a proper temperature.

[0050] In addition, the refrigeration assembly 40 further comprises a condenser 44. The hot side outlet of the heat exchanger 43 is connected with the condenser 44 through a pipeline. The condenser 44 is used to connect with external cooling equipment. In this way, the water delivered to the external cooling equipment can be further cooled through the condenser 44.

[0051] The water return pipeline 30 comprises a water return main pipe 31 and a plurality of water return branch pipes 32 connected with the water return main pipe 31. The water inlet end of each water return branch pipe 32 is used to connect with the hot water outlet of one cooler 14. The water outlet end of the water return main pipe 31 is connected with the hot side inlet of the heat exchanger 43.

[0052] The cooling water supply system further comprises a water return bypass 90. The water inlet end of the water return bypass 90 is connected with the water return pipeline 30. The water outlet end of the water return bypass 90 is connected with the water supply pipeline 50. Thus, the water return bypass 90 can be selectively conducted or blocked according to the water temperature of the water supply pipeline 50. When the water return bypass 90 is conducted, the hot water flowing out of the hot water outlet of the cooler 14 is directly guided into the water supply pipeline 50 to mix with the cold water of the water supply pipeline 50, so as to reduce the temperature of the water in the water tank 10 through the water supply pipeline 50, and to ensure that the water temperature of the water delivered to the cooler 14 is not too low.

[0053] Specifically, the water supply pipeline 50 is provided with a temperature sensor 51 connected with the controller, for detecting the water temperature of the water in the water supply pipeline 50 in real time, the return water bypass 90 includes a return water bypass pipeline 91 and a bypass valve 92 provided on the return water bypass pipeline 91, under the control of the controller, the bypass valve 92 can be opened or closed according to the detection result of the temperature sensor 51.

[0054] The controller is usually a central processing unit (CPU), which can be configured with a corresponding operating system, a control interface and the like. Specifically, it can be a digital logic control unit such as a single-chip microcomputer, a digital signal processing (DSP) and an advanced RISC machine (ARM) processor, which can be used for automatic control. The control instructions can be loaded into the memory at any time for storage and execution. Meanwhile, the CPU instructions and data memory, input and output units, power modules, digital and analog units can be built in. The actual use can be set, and the embodiments of the present application do not limit this.

[0055] In summary, the embodiment of the present application discloses a cooling water supply system, which is connected with the water tank 10 through the drain pipeline 60 and the water replenishment pipeline 70, and the water quality detector 12 is arranged to detect the water quality of the water in the water tank 10 in real time. When the water quality is abnormal, the drain pipeline 60 and the water replenishment pipeline 70 are connected, the drain pipeline 60 can drain the water in the water tank 10, and the water replenishment pipeline 70 can supply fresh and clean water to the water tank 10. The water in the water tank 10 is circulated to replace the water quality, so that the water quality in the water tank 10 can always be kept in a qualified state. The circulating water pump 11 can transport the low-temperature water with good water quality in the water tank 10 to the cooler 14 through the cold supply pipeline 20 to absorb heat and reduce the temperature of the cooler 14. The temperature of the cooler 14 is increased by heat absorption, and then the temperature is cooled in the refrigeration assembly 40 and sent back to the water tank 10, so as to improve the problem of internal blockage or corrosion leakage of the cooler 14 caused by the water quality of the circulating cooling water, and to ensure the stable operation of the system.

[0056] Finally, it should be noted that in this document, the terms "comprise", "comprise", or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or equipment.

[0057] The above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit the present application; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A cooling water supply system, characterized in that, It includes a circulating water tank (10), a circulating water pump (11), a refrigeration unit (40), a cooling supply pipeline (20), a drainage pipeline (60), a water supply pipeline (70), a return water pipeline (30), a water delivery pipeline (50), and a water quality detector (12); The circulating water tank (10), the circulating water pump (11) and the cooling pipeline (20) are connected in sequence, and the outlet end of the cooling pipeline is used to connect to the cold water inlet of the cooler (14). The inlet end of the return water pipe (30) is used to connect to the hot water outlet of the cooler (14), and the outlet end of the return water pipe (30) is connected to the refrigeration component (40). The water supply pipeline (50) connects the refrigeration component (40) and the water tank (10); The drainage pipe (60) and the water supply pipe (70) are connected to the water tank (10); The water quality detector (12) is installed in the water tank (10) and is used to detect the water quality in the water tank (10); The water supply pipe (70) and the drainage pipe (60) can be connected according to the detection result of the water quality detector (12) to replace the water in the water tank (10).

2. The cooling water supply system according to claim 1, characterized in that, The water quality detector (12) is used to detect the pH, turbidity and / or conductivity of the water in the water tank (10).

3. The cooling water supply system according to claim 1, characterized in that, The drainage pipeline (60) includes a drainage pipe (61) and a drainage valve (62) disposed on the drainage pipe (61). The water inlet end of the drainage pipe (61) is connected to the bottom of the water tank (10). The drainage valve (62) can be opened or closed according to the detection result of the water quality detector (12).

4. The cooling water supply system according to claim 1, characterized in that, The water supply pipeline (70) includes a water supply pipe (71) and a water supply valve (72) disposed on the water supply pipe (71). The water inlet end of the water supply pipe (71) is connected to the top of the water tank (10). The water supply valve (72) can be opened or closed according to the detection result of the water quality detector (12).

5. The cooling water supply system according to claim 1, characterized in that, The refrigeration assembly (40) includes a hyperbolic tower (41), a filter (42) and a heat exchanger (43). The cold-side inlets of the hyperbolic tower (41), the filter (42) and the heat exchanger (43) are connected in sequence, and the cold-side outlet of the heat exchanger (43) is connected to the water supply pipeline (50). The return water pipe (30) is connected to the hot side inlet of the heat exchanger (43), and the hot side outlet of the heat exchanger (43) is used to connect to external cooling equipment.

6. The cooling water supply system according to claim 5, characterized in that, The refrigeration assembly (40) also includes a condenser (44), and the hot side outlet of the heat exchanger (43) is connected to the condenser (44) via a pipeline. The condenser (44) is used to connect to external cooling equipment.

7. The cooling water supply system according to claim 1, characterized in that, The cooling water supply system also includes a return water bypass (90), the inlet of which is connected to the return water pipeline (30), and the outlet of which is connected to the water supply pipeline (50).

8. The cooling water supply system according to claim 1, characterized in that, The number of circulating water pumps (11) is at least two, and each of the circulating water pumps (11) is connected in parallel between the water tank (10) and the cooling pipeline (20).

9. The cooling water supply system according to claim 1, characterized in that, The cooling water supply system also includes a pump return pipe (80), the inlet end of which is connected to the cooling supply pipe (20), and the outlet end of which is connected to the water tank (10).

10. The cooling water supply system according to claim 1, characterized in that, The cooling water supply system also includes a controller, which is electrically connected to the drain pipe (60), the water supply pipe (70), and the circulating water pump (11).

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