Laboratory wastewater cooling device

Abstract

The utility model relates to the technical field of waste water cooling devices, in particular to a laboratory waste water cooling device which comprises a plate heat exchanger, and a heat exchanger corrugated plate used for heat exchange is arranged on one side of the plate heat exchanger. A first water inlet used for conveying high-temperature waste water into a corrugated plate of the heat exchanger is formed in the top of the other side of the plate heat exchanger, and a first electromagnetic valve capable of controlling the flow of the high-temperature waste water is arranged at the output end of the first water inlet. A second water inlet used for injecting cooling liquid into the corrugated plate of the heat exchanger is formed in the position, close to the first water inlet, of the other side of the plate heat exchanger, and a second electromagnetic valve used for controlling the flow of the cooling liquid is arranged at the input end of the second water inlet. According to the invention, the temperature of the high-temperature wastewater is accurately controlled. The problem that the biochemical system is damaged due to too high or too low water temperature is solved.

Description

Technical Field

[0001] This utility model relates to the technical field of wastewater cooling devices, specifically to a laboratory wastewater cooling device. Background Technology

[0002] Regarding wastewater generated by chemistry laboratories in Chinese universities and high schools, the vast majority of high-concentration wastewater requires recycling and treatment, while low-concentration cleaning wastewater needs to be treated to meet discharge standards. Statistics show that university chemistry labs need to treat approximately several hundred to several thousand tons of wastewater annually, while ordinary high schools need to treat approximately several hundred tons annually. Laboratory wastewater mainly consists of heavy metals, organic wastewater, waste acids, and alkalis. Therefore, the total amount of wastewater from school laboratories is already alarming, and the environmental problems it causes cannot be ignored.

[0003] The wastewater from comprehensive university laboratories is particularly complex, lacking both regular discharge cycles and fixed discharge volumes. Its complex and variable composition makes it difficult to treat. High-efficiency laboratories, including animal laboratories, also present the challenge of high-temperature wastewater discharge. For laboratory wastewater, the primary treatment process remains biological treatment, as it is crucial to ensure that the temperature of the water entering the biological system remains below the system's tolerance limits to guarantee its safe operation. Therefore, this paper proposes a laboratory wastewater cooling device. Utility Model Content

[0004] To address the aforementioned problems, a laboratory wastewater cooling device is provided. This device monitors the temperature of the discharged wastewater in real time using a water temperature monitoring system. Then, the flow rate of the high-temperature wastewater is controlled by switching on and off a first solenoid valve, and the flow rate of the coolant is controlled by switching on and off a second solenoid valve. This achieves precise temperature control of the high-temperature wastewater and solves the problem of damage to the biochemical system caused by excessively high or low water temperatures.

[0005] To address the problems of existing technologies, this application provides a laboratory wastewater cooling device, including a plate heat exchanger. One side of the plate heat exchanger is provided with a corrugated heat exchanger plate for heat exchange. The top of the other side of the plate heat exchanger is provided with a first inlet for conveying high-temperature wastewater into the corrugated heat exchanger plate. A first solenoid valve capable of controlling the flow rate of the high-temperature wastewater is provided at the output end of the first inlet. A second inlet for injecting coolant into the corrugated heat exchanger plate is provided on the other side of the plate heat exchanger near the first inlet. The input end of the second inlet is provided with… A second solenoid valve is used to control the flow rate of the coolant; a first outlet is provided on the other side of the plate heat exchanger near the bottom, which can communicate with the flow path of the coolant inside the corrugated plate of the heat exchanger and discharge the coolant after heat exchange; a second outlet is provided on the other side of the plate heat exchanger near the bottom, which can communicate with the flow path of the high-temperature wastewater inside the corrugated plate of the heat exchanger and discharge the high-temperature wastewater after heat exchange, and a second external pipe is provided at the output end of the second outlet, and a water temperature monitoring device is provided at the top of the second external pipe, which can monitor the temperature of the high-temperature wastewater after heat exchange flowing through it in real time.

[0006] As one technical solution of this application, the top of the second outer pipe is provided with a mounting base for installing a water temperature monitoring device; the water temperature monitoring device includes a temperature sensor, and the bottom of the temperature sensor is provided with a sensor monitoring end that can extend into the interior of the second outer pipe for monitoring the water temperature.

[0007] As one technical solution of this application, the output end of the first water outlet is provided with a first external pipe that can be connected to the laboratory water pipe.

[0008] As one technical solution of this application, the input end of the first water inlet is provided with a first flange, and the two ends of the first solenoid valve are provided with second flanges, and the second flange at one end of the first solenoid valve can be fixedly connected to the first flange.

[0009] As one technical solution of this application, the input end of the first solenoid valve is provided with a first delivery pump for conveying high-temperature wastewater to the inside of the corrugated plate of the heat exchanger.

[0010] As one technical solution of this application, the input end of the second water inlet is provided with a third flange, and both ends of the second solenoid valve are provided with fourth flanges, wherein the fourth flange at one end of the second solenoid valve can be fixedly connected to the third flange.

[0011] As one technical solution of this application, the input end of the second solenoid valve is provided with a second delivery pump capable of delivering coolant to the inside of the heat exchanger corrugated plate.

[0012] As one technical solution of this application, a fifth flange is provided at the input end of the second outlet; a sixth flange is provided at both ends of the second external pipe, and the sixth flange provided at one end of the second external pipe can be fixedly connected to the fifth flange.

[0013] The advantages of this utility model compared to the prior art are:

[0014] This application utilizes a water temperature monitoring device to monitor the temperature of discharged wastewater in real time. Then, the flow rate of the high-temperature wastewater is controlled by switching on and off a first solenoid valve, and the flow rate of the coolant is controlled by switching on and off a second solenoid valve. This achieves precise temperature control of the high-temperature wastewater, solving the problem of damage to the biological system caused by excessively high or low water temperatures. Attached Figure Description

[0015] Figure 1 A schematic diagram of a three-dimensional structure of a laboratory wastewater cooling device. Figure 1 .

[0016] Figure 2 A schematic diagram of a three-dimensional structure of a laboratory wastewater cooling device. Figure 2 .

[0017] Figure 3 This is a three-dimensional view of the second solenoid valve in a laboratory wastewater cooling device.

[0018] Figure 4 This is a three-dimensional diagram of a temperature monitoring device in a laboratory wastewater cooling system.

[0019] The following are the labels in the diagram: 1. Plate heat exchanger; 11. First inlet; 111. First flange; 12. First outlet; 121. First external pipe; 13. First solenoid valve; 131. Second flange; 132. First transfer pump; 14. Second inlet; 141. Third flange; 15. Second solenoid valve; 151. Fourth flange; 152. Second transfer pump; 16. Second outlet; 161. Fifth flange; 17. Second external pipe; 171. Mounting base; 172. Sixth flange; 18. Water temperature monitoring device; 181. Temperature sensor; 182. Sensor monitoring end; 6. Corrugated plate of heat exchanger. Detailed Implementation

[0020] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments.

[0021] See Figures 1-4As shown, to solve the problems of the prior art, this application provides a laboratory wastewater cooling device, including a plate heat exchanger 1. A heat exchanger corrugated plate 6 for heat exchange is provided on one side of the plate heat exchanger 1. A first inlet 11 for conveying high-temperature wastewater into the heat exchanger corrugated plate 6 is provided on the top of the other side of the plate heat exchanger 1. A first solenoid valve 13 for controlling the flow rate of the high-temperature wastewater is provided at the output end of the first inlet 11. A second inlet 14 for injecting coolant into the heat exchanger corrugated plate 6 is provided on the other side of the plate heat exchanger 1 near the first inlet 11. An input end of the second inlet 14 is provided with... A second solenoid valve 15 is used to control the flow rate of the coolant; a first outlet 12 is provided on the other side of the plate heat exchanger 1 near the bottom, which can communicate with the flow path of the coolant inside the corrugated plate 6 of the heat exchanger and discharge the coolant after heat exchange; a second outlet 16 is provided on the other side of the plate heat exchanger 1 near the bottom, which can communicate with the flow path of the high-temperature wastewater inside the corrugated plate 6 of the heat exchanger and discharge the high-temperature wastewater after heat exchange; a second external pipe 17 is provided at the output end of the second outlet 16; and a water temperature monitoring device 18 is provided at the top of the second external pipe 17, which can monitor the temperature of the high-temperature wastewater after heat exchange flowing through it in real time.

[0022] When high-temperature wastewater enters the corrugated plate 6 of the heat exchanger through the first inlet 11, it flows along a fixed path inside the plate 6. Simultaneously, coolant is delivered to the inside of the plate 6 through the second inlet 14 and flows along a fixed path. At this time, both the high-temperature wastewater and coolant flow within the plate 6, achieving heat exchange through thermal conduction. This reduces the temperature of the high-temperature wastewater to a predetermined value. To prevent the temperature of the high-temperature wastewater from remaining within the predetermined range, a first solenoid valve 13 is installed at the input end of the first inlet 11 to control the flow rate of the high-temperature wastewater, a second solenoid valve 15 is installed at the input end of the second inlet 14 to control the flow rate of the coolant, and a water temperature monitoring device 18 is installed at the top of the second external pipe 17 at the output end of the second outlet 16 to monitor the temperature of the wastewater after cooling treatment in real time. When the water temperature monitoring device 18 detects that the temperature of the outflowing wastewater exceeds the preset range, it transmits the monitoring data to an external controller. At this time, the external controller activates the first solenoid valve 13, which then closes, slowing the flow rate of the high-temperature wastewater. Simultaneously, the external controller activates the second solenoid valve 15, which opens, increasing the coolant flow rate. This allows the coolant to quickly absorb the heat carried by the high-temperature wastewater through the corrugated plate 6 of the heat exchanger until the discharged wastewater temperature reaches the preset value. Conversely, when the water temperature monitoring device 18 detects that the discharged wastewater temperature is lower than the preset value, the external controller activates the first solenoid valve 13, which gradually opens, increasing the flow rate of the high-temperature wastewater. Simultaneously, the external controller controls the second solenoid valve 15 to gradually close. This slows the flow rate of the coolant entering the corrugated plate 6 of the heat exchanger, reducing the absorption of heat from the wastewater. This ensures that the high-temperature wastewater temperature is consistently controlled within the preset range, guaranteeing a stable discharged wastewater temperature. This ensures that the water temperature does not damage the biochemical system, thus guaranteeing its stable operation.

[0023] See Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the top of the second external pipe 17 is provided with a mounting base 171 for installing a water temperature monitoring device 18; the water temperature monitoring device 18 includes a temperature sensor 181, and the bottom of the temperature sensor 181 is provided with a sensor monitoring end 182 that can extend into the interior of the second external pipe 17 for monitoring water temperature.

[0024] A mounting base 171 is installed on the top of the second external connector 17. Then, the temperature sensor 181 is fixed to the top of the mounting base 171. To ensure that the sensor monitoring end 182 can accurately measure the wastewater temperature, the sensor monitoring end 182, located at the bottom of the temperature sensor 181, extends downwards through the mounting base 171, ensuring that the sensor monitoring end 182 smoothly enters the interior of the second external connector 17, thereby achieving real-time monitoring of the wastewater temperature.

[0025] See Figure 1 As shown, the output end of the first outlet 12 is provided with a first external pipe 121 that can be connected to the laboratory water pipe.

[0026] The laboratory water pipe is connected to the output end of the first outlet 12 via the first external connector 121. This allows the coolant carrying heat to be discharged through the first outlet 12. Simultaneously, the coolant carrying heat is transported to the laboratory's internal water system via the first external connector 121. This enables the laboratory to directly utilize the heat energy contained in the coolant to provide hot water, achieving waste heat recovery. This effectively reduces the energy consumption required for the laboratory to produce hot water using traditional electric heating methods, thus saving energy.

[0027] See Figure 1 and Figure 3 As shown, the input end of the first inlet 11 is provided with a first flange 111, and the two ends of the first solenoid valve 13 are provided with second flanges 131. The second flange 131 at one end of the first solenoid valve 13 can be fixedly connected to the first flange 111.

[0028] To ensure a stable connection between the first solenoid valve 13 and the first inlet 11, a first flange 111 is provided at the input end of the first inlet 11. Second flanges 131 are provided at both ends of the first solenoid valve 13, and one end of the second flange 131 is fixed to the first flange 111 using fasteners. This effectively ensures the stability between the first solenoid valve 13 and the first inlet 11.

[0029] See Figure 1 , Figure 2 and Figure 3 As shown, the input end of the first solenoid valve 13 is equipped with a first delivery pump 132 for delivering high-temperature wastewater to the inside of the heat exchanger corrugated plate 6.

[0030] When the first transfer pump 132 starts, it delivers high-temperature wastewater through the first solenoid valve 13 to the inside of the first inlet 11. Ultimately, the high-temperature wastewater inside the first inlet 11 enters the interior of the heat exchanger corrugated plate 6. This ensures a stable and continuous supply of high-temperature wastewater to the heat exchanger corrugated plate 6, providing a reliable guarantee for the subsequent heat exchange process.

[0031] See Figure 1 , Figure 2 and Figure 3 As shown, the input end of the second inlet 14 is provided with a third flange 141, and both ends of the second solenoid valve 15 are provided with fourth flanges 151. The fourth flange 151 at one end of the second solenoid valve 15 can be fixedly connected to the third flange 141.

[0032] To ensure a stable connection between the second inlet 14 and the second solenoid valve 15, a third flange 141 is provided at the input end of the second inlet 14. Fourth flanges 151 are provided at both ends of the second solenoid valve 15. The fourth flange 151 at one end of the second solenoid valve 15 is then fixed to the third flange 141 using fasteners. This effectively ensures the stability between the second inlet 14 and the second solenoid valve 15.

[0033] See Figure 1 , Figure 2 and Figure 3 As shown, the input end of the second solenoid valve 15 is equipped with a second delivery pump 152 capable of delivering coolant to the inside of the heat exchanger corrugated plate 6.

[0034] When the second delivery pump 152 starts, it delivers high-temperature wastewater to the interior of the heat exchanger corrugated plate 6 through the second solenoid valve 15. Ultimately, the high-temperature wastewater inside the first inlet 11 enters the interior of the heat exchanger corrugated plate 6. This ensures a stable and continuous supply of coolant to the interior of the heat exchanger corrugated plate 6.

[0035] See Figure 1 , Figure 2 and Figure 3 As shown, the input end of the second outlet 16 is provided with a fifth flange 161; both ends of the second external pipe 17 are provided with a sixth flange 172, and the sixth flange 172 provided at one end of the second external pipe 17 can be fixedly connected to the fifth flange 161.

[0036] To ensure a stable connection between the second outlet 16 and the second external connecting pipe 17, a fifth flange 161 is installed at the inlet end of the second outlet 16. Sixth flanges 172 are installed at both ends of the second external connecting pipe 17, and one end of the sixth flange 172 is secured to the fifth flange 161 using fasteners. This effectively ensures the stability between the second outlet 16 and the second external connecting pipe 17.

[0037] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A laboratory wastewater cooling device, characterized by, The utility model provides board heat exchanger (1), one side of board heat exchanger (1) is provided with heat exchanger corrugated board (6) for heat exchange, the top of the other side of board heat exchanger (1) is provided with first water inlet (11) for conveying high temperature waste water to the inside of heat exchanger corrugated board (6), and the output end of first water inlet (11) is provided with first solenoid valve (13) that can control the flow of high temperature waste water;The position close to first water inlet (11) of the other side of board heat exchanger (1) is provided with second water inlet (14) for injecting cooling liquid to the inside of heat exchanger corrugated board (6), and the input end of second water inlet (14) is provided with second solenoid valve (15) for controlling the flow of cooling liquid;The position close to the bottom of the other side of board heat exchanger (1) is provided with first water outlet (12) that can communicate with the cooling liquid flow route inside heat exchanger corrugated board (6) and discharge the cooling liquid after heat exchange;The position close to the bottom of the other side of board heat exchanger (1) is provided with second water outlet (16) that can communicate with the high temperature waste water flow route inside heat exchanger corrugated board (6) and discharge the high temperature waste water after heat exchange, and the output end of second water outlet (16) is provided with second external connecting pipe (17), and the top of second external connecting pipe (17) is provided with water temperature monitoring device (18) that can monitor the temperature of high temperature waste water after heat exchange in its inside in real time.

2. The laboratory wastewater cooling device of claim 1, wherein, The top of second external connecting pipe (17) is provided with mounting seat (171) for mounting water temperature monitoring device (18);The water temperature monitoring device (18) comprises temperature sensor (181), and the bottom of temperature sensor (181) is provided with sensor monitoring end (182) that can extend to the inside of second external connecting pipe (17) for monitoring water temperature.

3. The laboratory wastewater cooling device of claim 1, wherein, The output end of first water outlet (12) is provided with first external connecting pipe (121) that can be connected with laboratory water pipe.

4. The laboratory wastewater cooling device of claim 1, wherein, The input end of first water inlet (11) is provided with first flange (111), and the two ends of first solenoid valve (13) are provided with second flange (131), and the second flange (131) of one end of first solenoid valve (13) can be fixedly connected with first flange (111).

5. The laboratory wastewater cooling device of claim 1, wherein, The input end of first solenoid valve (13) is provided with first conveying pump (132) for conveying high temperature waste water to the inside of heat exchanger corrugated board (6).

6. The laboratory wastewater cooling device of claim 1, wherein, The input end of second water inlet (14) is provided with third flange (141), and the two ends of second solenoid valve (15) are provided with fourth flange (151), and the fourth flange (151) of one end of second solenoid valve (15) can be fixedly connected with third flange (141).

7. The laboratory wastewater cooling device of claim 1, wherein, The input end of second solenoid valve (15) is provided with second conveying pump (152) for conveying cooling liquid to the inside of heat exchanger corrugated board (6).

8. The laboratory wastewater cooling device of claim 1, wherein, The input end of second water outlet (16) is provided with fifth flange (161), and the two ends of second external connecting pipe (17) are provided with sixth flange (172), and the sixth flange (172) provided on one end of second external connecting pipe (17) can be fixedly connected with fifth flange (161).

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