A device for automatically adding water and discharging sewage in a refrigeration circulating water system

Abstract

The utility model discloses a kind of refrigeration circulating water system automatic water replenishing and polluting water discharge device, including water reservoir, oil cooler and cooling tower, the water of water reservoir is connected to the input end of oil cooler by circulating water pump, the output end of oil cooler is connected to the input end of cooling tower, the output end of cooling tower is connected to water reservoir;The inner portion of water reservoir is provided with pH detector and water level detection device, water reservoir inlet pipeline is provided on the lateral wall of water reservoir, first control valve is provided on the water reservoir inlet pipeline, the lateral wall bottom of water reservoir is provided with water reservoir outlet pipeline, pH detector and water level detection device are installed in water reservoir.The utility model can solve the refrigeration circulating water system of existing, it is seriously dependent on manual operation in water replenishing, polluting water discharge and water quality monitoring aspect, degree of automation is extremely low, leading to water resource waste, increase the problem of artificial maintenance cost, affect the stable operation of system.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration circulating water system technology, specifically to a device for automatic water replenishment and sewage discharge in a refrigeration circulating water system. Background Technology

[0002] Existing refrigeration circulating water systems use a vertical circulating water pump to draw water from a circulating water tank and deliver it to the compressor oil cooler. Inside the oil cooler, the circulating water undergoes thorough heat exchange with the high-temperature compressor refrigeration oil, absorbing heat from the oil and raising its temperature. The hot water, after heat exchange, flows out of the oil cooler and is then guided to a cooling tower. In the cooling tower, the hot water dissipates the absorbed heat into the atmosphere through spraying, forced convection with air, and partial evaporation, significantly reducing its temperature. The cooled water then flows back to the circulating water tank through pipes, ready for the next cycle. This cycle repeats continuously, providing the necessary cooling water to the compressor oil cooler and ensuring stable and efficient compressor operation. However, this system lacks proactive water quality management. Because the circulating water comes into contact with air in the cooling tower, it absorbs dust and impurities from the air. Simultaneously, dissolved minerals in the water may increase due to evaporation and concentration, leading to risks of scale buildup, corrosion, or microbial growth. Existing systems typically maintain a certain water quality level through manual blowdown. Operators may manually open the drain valve at the bottom of the water tank based on experience or periodic inspections to discharge some of the sediment or stagnant water with poor quality before adding fresh water. This reliance on manual judgment and execution, lacking automatic detection, is untimely and inaccurate. The frequency and volume of wastewater discharge cannot be adjusted according to real-time changes in water quality, potentially leading to insufficient discharge and continued water quality deterioration, or excessive discharge and waste of water resources. To address these issues, improvements to the refrigeration circulating water system are needed. Utility Model Content

[0003] This invention provides an automatic water replenishment and sewage discharge device for a refrigeration circulating water system, which can solve the problems of existing refrigeration circulating water systems that rely heavily on manual operation for water replenishment, sewage discharge and water quality monitoring, resulting in extremely low automation, waste of water resources, increased manual maintenance costs and impact on the stable operation of the system.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an automatic water replenishment and sewage discharge device for a refrigeration circulating water system, comprising a water storage tank, an oil cooler, and a cooling tower. The water in the water storage tank is connected to the input end of the oil cooler via a circulating water pump. The output end of the oil cooler is connected to the input end of the cooling tower, and the output end of the cooling tower is connected to the water storage tank. A pH meter and a water level detection device are installed inside the water storage tank. A water inlet pipe is installed on the side wall of the water storage tank, and a first control valve is installed on the water inlet pipe. A water outlet pipe is installed at the bottom of the side wall of the water storage tank, and a second control valve is installed on the water outlet pipe. The pH meter and water level detection device are installed inside the water storage tank. The pH meter is used to monitor the pH of the circulating water in real time, and the water level detection device is used to monitor the water level in the water storage tank in real time. Automatic monitoring of the water's pH and hardness ensures safety and reliability, improves equipment heat exchange efficiency, reduces equipment failure frequency, and the continuous and stable water level and good water quality improve the overall operating efficiency and stability of the compressor and related refrigeration systems.

[0005] As a supplement to the technical solution described in this utility model, at least one fan for discharging water vapor is provided at the top of the cooling tower. The fan is used to accelerate airflow and improve heat dissipation efficiency.

[0006] As a supplement to the technical solution described in this utility model, a first pipeline is provided between the water storage tank and the cooling tower, and a third control valve is provided on the first pipeline. The first pipeline introduces water that has been cooled by the cooling tower into the water storage tank, and the third control valve is used to adjust the return water flow of the cooling tower.

[0007] As a supplement to the technical solution described in this utility model, a second pipe is provided on the top of the side wall of the water storage tank, and a fourth control valve is provided on the second pipe. The fourth control valve is an overflow valve. If the water level is high, the fourth control valve is opened, and automatic overflow occurs through the second pipe.

[0008] As a supplement to the technical solution described in this utility model, a third pipe is provided between the circulating water pump and the water storage tank, and a fifth control valve is provided on the third pipe. The third pipe leads water out of the water storage tank, and the fifth control valve controls the water supply to the circulating water pump to ensure stable inlet pressure of the circulating water pump.

[0009] As a supplement to the technical solution described in this utility model, a fourth pipe is provided between the cooling tower and the oil cooler, and a sixth control valve is provided on the fourth pipe. The fourth pipe is used to send water passing through the oil cooler into the cooling tower, and the sixth control valve is used to regulate the inlet water flow rate.

[0010] As a supplement to the technical solution described in this utility model, the end of the water outlet pipe of the water storage tank leads to the sewage tank, and the water outlet pipe of the water storage tank is used to ultimately lead the sediment at the bottom of the water storage tank to the sewage tank or treatment facility.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] The system automatically monitors water level and quality in the pool using a pH meter and water level detection device. Based on preset parameters, it automatically performs water replenishment and wastewater discharge operations without manual intervention, saving manpower. Real-time pH monitoring and corresponding adjustments to wastewater discharge help maintain the acid-base balance of the water, effectively inhibiting scale formation and corrosion of metal equipment. A consistently stable water level and good water quality improve the overall operating efficiency and stability of the compressor and related refrigeration systems. This solution addresses the problems of existing refrigeration circulating water systems, which heavily rely on manual operation for water replenishment, wastewater discharge, and water quality monitoring, resulting in extremely low automation, water waste, increased maintenance costs, and compromised system stability. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure label:

[0015] 1. Water storage tank; 101. Water inlet pipe of water storage tank; 102. Water outlet pipe of water storage tank; 2. Oil cooler; 3. Cooling tower; 4. Circulating water pump; 5. pH meter; 6. Water level detection device; 7. First control valve; 8. Second control valve; 9. Fan; 10. Third control valve; 11. Fourth control valve; 12. Fifth control valve; 13. Sixth control valve; 14. First pipe; 15. Second pipe; 16. Third pipe; 17. Fourth pipe. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0017] The present invention relates to an automatic water replenishment and sewage discharge device for a refrigeration circulating water system, such as... Figure 1As shown, the system includes a water storage tank 1, an oil cooler 2, and a cooling tower 3. The water storage tank 1 stores circulating water, the oil cooler 2 cools the oil circuit system, and the cooling tower 3 dissipates heat and lowers the temperature of the circulating water. The water in the water storage tank 1 is connected to the input end of the oil cooler 2 via three circulating water pumps 4. The circulating water pumps 4 drive the water to circulate in the system. The circulating water pumps 4 are existing technology, so their structure will not be described in detail. The circulating water pumps 4 can be referenced from the water pumps manufactured by Shanghai Ruiquan Pump Industry Manufacturing Co., Ltd. Model: ISW150-400B; The output end of the oil cooler 2 is connected to the input end of the cooling tower 3, and the output end of the cooling tower 3 is connected to the water storage tank 1; The water storage tank 1 is equipped with a pH meter 5 and a water level detection device 6; The water storage tank 1 has a water inlet pipe 101 on its side wall, and a first control valve 7 is installed on the water inlet pipe 101; The water storage tank 1 has a water outlet pipe 102 at the bottom of its side wall, and the water outlet pipe 102 has... A second control valve 8 is installed. A pH meter 5 and a water level detection device 6 are installed in the water storage tank 1. The water level detection device 6 uses a static pressure transmitter, which can be purchased directly from the market. Static pressure transmitters are existing technology, so their structure will not be described in detail. For reference, you can refer to the brand IFM, model: PS4407. The water level detection device 6 is used to monitor the water level in the water storage tank 1 in real time. The pH meter 5 can also be purchased directly from the market. As a technology already in use, its structure will not be described in detail. For reference, you can refer to the brand GENESITE, model: Online Water Quality Monitor. The pH meter 5 is used to monitor the pH of the circulating water in real time. The water outlet pipe 102 is used to discharge sediment from the bottom of the water storage tank 1. The automatic detection of water pH and hardness ensures safety and reliability, improves equipment heat exchange efficiency, reduces equipment failure frequency, and the continuous and stable water level and good water quality improve the overall operating efficiency and stability of the compressor and related refrigeration systems.

[0018] In this embodiment, as Figure 1 As shown, at least one fan 9 is provided at the top of the cooling tower 3 for discharging water vapor. The cooling tower 3 generates steam when treating heated water, and the fan 9 is used to accelerate airflow and improve heat dissipation efficiency.

[0019] In this embodiment, as Figure 1 As shown, a first pipe 14 is provided between the water storage tank 1 and the cooling tower 3. A third control valve 10 is provided on the first pipe 14. The first pipe 14 introduces water that has been cooled by the cooling tower 3 into the water storage tank 1. The third control valve 10 is used to adjust the return water flow of the cooling tower 3.

[0020] In this embodiment, as Figure 1As shown, a second pipe 15 is provided on the top of the side wall of the water storage tank 1. A fourth control valve 11 is provided on the second pipe 15. The fourth control valve 11 is an overflow valve. If the water level is high, the fourth control valve will be opened and the water will automatically overflow through the second pipe 15.

[0021] In this embodiment, as Figure 1 As shown, a third pipe 16 is provided between the circulating water pump 4 and the water storage tank 1. A fifth control valve 12 is provided on the third pipe 16. The third pipe 16 draws water out of the water storage tank 1, and the fifth control valve 12 controls the water supply to the circulating water pump 4 to ensure that the inlet pressure of the circulating water pump is stable.

[0022] In this embodiment, as Figure 1 As shown, a fourth pipe 17 is provided between the cooling tower 3 and the oil cooler 2. A sixth control valve 13 is provided on the fourth pipe 17. The fourth pipe 17 is used to send water passing through the oil cooler 2 into the cooling tower 3, and the sixth control valve 13 is used to regulate the water inlet flow rate.

[0023] In this embodiment, as Figure 1 As shown, the end of the water outlet pipe 102 of the water storage tank leads to the sewage tank. The water outlet pipe 102 is used to discharge the sediment at the bottom of the water storage tank 1 and finally lead to the sewage tank or treatment facility.

[0024] In this embodiment, as Figure 1As shown, when the refrigeration circulating water system is running, the fifth control valve 12 is opened, and the cold water in the water storage tank 1 is introduced into the oil cooler 2 through the vertical circulating water pump 4 for heat exchange and cooling to reduce the oil temperature. The water is heated after passing through the oil cooler 2 and continues to enter the cooling tower 3 through the fourth pipe 17 and the sixth control valve 13. The cooling tower 3 cools the heated water, and the treated water enters the water storage tank 1 through the first pipe 14 and the third control valve 10. A pH meter 5 and a water level detection device 6 are installed in the water storage tank 1. When the pH meter 5 detects that the pH index of the water is lower than 6.5, the fourth control valve 11 and the first control valve 7 are automatically opened, and the water level in the water storage tank 1 is slowly raised by adding municipal tap water. When the pH reaches 7 or above, the first control valve 7 is automatically closed. When the water level detection device 6 detects that the water level is high, the fourth control valve 11 is opened for automatic overflow until the pH returns to normal and then it is closed. During automatic sewage discharge, the pH meter 5 monitors the water hardness in real time. If the water hardness is greater than 120 mg / L, the second control valve 8 is opened, and the water outlet pipe 102 of the water storage tank automatically drains the water. The water level detection device 6 detects that the water level has dropped from the normal 3.5 meters to 3 meters. The second control valve 8 is then automatically closed, and the first control valve 7 is automatically opened to replenish tap water and reduce the water hardness. This process continues until the water level reaches 3.5 meters, at which point the first control valve 7 is closed. If the water hardness is still greater than 120 mg / L, the above control process is repeated to adjust the water quality. If the water quality index is lower than 120 mg / L, all valves return to normal operation.

[0025] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0026] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly and specifically defined.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

Claims

1. A device for automatic water replenishment and sewage discharge in a refrigeration circulating water system, characterized in that, include: The water storage tank (1), oil cooler (2) and cooling tower (3) are connected to the input end of the oil cooler (2) via a circulating water pump (4), the output end of the oil cooler (2) is connected to the input end of the cooling tower (3), and the output end of the cooling tower (3) is connected to the water storage tank (1). The water storage tank (1) is equipped with a pH meter (5) and a water level detection device (6). The water storage tank (1) has a water inlet pipe (101) on its side wall. The water inlet pipe (101) is equipped with a first control valve (7). The water storage tank (1) has a water outlet pipe (102) at the bottom of its side wall. The water outlet pipe (102) is equipped with a second control valve (8).

2. The device for automatic water replenishment and sewage discharge in a refrigeration circulating water system according to claim 1, characterized in that: The top of the cooling tower (3) is equipped with at least one fan (9) for discharging water vapor.

3. The device for automatic water replenishment and sewage discharge in a refrigeration circulating water system according to claim 1, characterized in that: A first pipe (14) is provided between the water storage tank (1) and the cooling tower (3), and a third control valve (10) is provided on the first pipe (14).

4. The device for automatic water replenishment and sewage discharge of a refrigeration circulating water system according to claim 1, characterized in that: A second pipe (15) is provided on the top of the side wall of the water storage tank (1), and a fourth control valve (11) is provided on the second pipe (15).

5. The device for automatic water replenishment and sewage discharge in a refrigeration circulating water system according to claim 1, characterized in that: A third pipe (16) is provided between the circulating water pump (4) and the water storage tank (1), and a fifth control valve (12) is provided on the third pipe (16).

6. The device for automatic water replenishment and sewage discharge of a refrigeration circulating water system according to claim 1, characterized in that: A fourth pipe (17) is provided between the cooling tower (3) and the oil cooler (2), and a sixth control valve (13) is provided on the fourth pipe (17).

7. The device for automatic water replenishment and sewage discharge in a refrigeration circulating water system according to claim 1, characterized in that: The end of the water outlet pipe (102) of the water storage tank leads to the sewage tank.

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