Temperature control equipment

Abstract

The utility model relates to the technical field of temperature control equipment, in particular to temperature control equipment. Comprising a closed water tank, an inlet of the closed water tank is provided with a liquid return port, the top of the closed water tank is provided with an automatic exhaust valve, the bottom of the closed water tank is connected with an inlet of a low-temperature heat pump unit and an inlet of a dry cooler through a water pump, and the low-temperature heat pump unit and the dry cooler are connected to the rear end of the water pump in parallel; outlets of the low-temperature heat pump unit and the dry cooler are converged and then connected with a liquid supply port through a water flow switch; the closed water tank is further connected with a water supplementing tank, and a second Y-shaped filter, a water supplementing pump, a third electromagnetic valve and a third ball valve are sequentially arranged between the water supplementing tank and the closed water tank. The bottom of the closed water tank is further communicated with a liquid discharging pipeline which is communicated with the dry cooler. The heat pump unit and the dry cooler are integrated, site construction is avoided, installation is easy and fast, and equipment performance is stable.

Description

Technical Field

[0001] The utility model relates to the technical field of temperature control equipment, in particular to a temperature control equipment. Background Art

[0002] During the operation of a ferrochromium liquid flow energy storage system, optimal operating conditions require that the electrolyte be maintained within a relatively high temperature range. To ensure normal operation and extend its service life, a stable temperature operating condition is essential. Therefore, the temperature control equipment used must accommodate both winter and summer high and low temperature environments, providing a stable supply of hot and cold water based on the electrolyte temperature within the system. A common temperature control system for this scenario utilizes a heat pump unit with on-site installation connecting pipes.

[0003] The existing installation method of heat pump units combined with on-site construction connecting pipes presents several challenges. The complex on-site construction environment makes it difficult to ensure consistent and stable construction quality, resulting in a long construction period and significant waste generation, noise, dust, and other pollution. To address these issues, a temperature control device integrating a heat pump unit and dry cooler is needed to improve on-site construction efficiency, reduce quality issues, and ensure product consistency and stability. Utility Model Content

[0004] The problem to be solved is to provide a temperature control device that integrates a heat pump unit and a dry cooler to improve on-site construction efficiency and ensure product consistency and stability.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a temperature control device, comprising a closed water tank, a liquid return port being provided at the inlet of the closed water tank, an automatic exhaust valve being provided at the top of the closed water tank, the bottom of the closed water tank being connected to the inlet of a low-temperature heat pump unit and the inlet of a dry cooler through a water pump, the low-temperature heat pump unit and the dry cooler being connected in parallel at the rear end of the water pump; the outlets of the low-temperature heat pump unit and the dry cooler being converged and connected to the liquid supply port through a water flow switch; the closed water tank is also connected to a water supply tank, and a Y-type filter 2, a water supply pump, a solenoid valve 3 and a ball valve 3 are sequentially provided between the water supply tank and the closed water tank; a drain pipe is also connected to the bottom of the closed water tank, and the drain pipe is connected to the dry cooler.

[0006] Preferably, a temperature sensor 1, a pressure sensor 1 and a conductivity meter are sequentially provided between the liquid return port and the closed water tank.

[0007] Preferably, a Y-type filter is provided between the closed water tank and the water pump, and the water pump is connected to the inlet of the low-temperature heat pump unit through an electric valve; a PTC heater is provided at the outlet of the low-temperature heat pump unit, and a temperature sensor is provided between the PTC heater and the low-temperature heat pump unit.

[0008] Preferably, the water pump is connected to the dry cooler inlet through the electric valve 2, and the dry cooler outlet is connected to the switch through the electric valve 3.

[0009] Preferably, a temperature sensor three and a pressure sensor two are sequentially provided between the switch and the liquid supply port.

[0010] Preferably, it also includes an ambient temperature sensor, which measures the ambient temperature; the drain pipeline is connected to the closed water tank through the second ball valve, and the drain pipeline is connected to the dry cooler through the first ball valve.

[0011] Compared with the prior art, the present invention provides a temperature control device with the following beneficial effects:

[0012] 1. The temperature control equipment of the integrated heat pump unit and dry cooler avoids on-site construction, is simple and quick to install, and has stable equipment performance;

[0013] 2. Equipped with PTC electric heater, the equipment can still be used normally in extremely low temperature conditions;

[0014] 3. Equipped with automatic drain function, the equipment can automatically drain the coolant in low temperature environment to prevent damage to the unit;

[0015] 4. It has automatic refilling function, which can automatically refill the liquid when the temperature control system is short of liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the principle of the utility model;

[0017] Explanation of the accompanying symbols: 1. Liquid return port; 2. Temperature sensor 1; 3. Pressure sensor 1; 4. Conductivity meter; 5. Automatic exhaust valve; 6. Closed water tank; 7. Y-type filter 1; 8. Water pump; 9. Electric valve 1; 10. Low-temperature heat pump unit; 11. Temperature sensor 2; 12. PTC heater; 13. Water flow switch; 14. Temperature sensor 3; 15. Pressure sensor 2; 16. Liquid supply port; 17. Electric valve 2; 18. Dry cooler; 19. Electric valve 3; 20. Solenoid valve 1; 21. Ball valve 1; 22. Solenoid valve 2; 23. Ball valve 2; 24. Ambient temperature sensor; 25. Water supply tank; 26. Temperature sensor 4; 27. Y-type filter 2; 28. Water supply pump; 29. ​​Solenoid valve 3; 30. Ball valve 3; 31. Drain pipe. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described below with reference to the accompanying drawings in the embodiments of the present invention:

[0019] As described in the background technology, the present invention provides a temperature control device that integrates a heat pump unit and a dry cooler. The temperature control device can be quickly installed on site to adjust the temperature of the coolant to provide the required temperature for the ferrochromium electrolyte. The temperature control device is used in conjunction with a fluoroplastic heat exchanger, which is placed in the ferrochromium electrolyte. The temperature control device has a liquid supply port 16 that supplies coolant to the fluoroplastic heat exchanger, and a liquid return port 1 that recovers coolant discharged from the fluoroplastic heat exchanger. The coolant circulates within the temperature control device. The temperature control device includes a closed water tank 6, a low-temperature heat pump unit 10, and a dry cooler 18. The low-temperature heat pump unit 10 provides a heat source for the rear end, and the dry cooler 18 provides a cold source for the rear end. During operation, either the low-temperature heat pump unit 10 or the dry cooler 18 is selected for use. The inlet of the closed water tank 6 is connected to the liquid return port 1. A temperature sensor 2, a pressure sensor 3, and a conductivity meter 4 are sequentially installed between the liquid return port 1 and the closed water tank 6. The temperature sensor 2 and pressure sensor 3 measure the temperature and pressure of the coolant flowing out of the fluoroplastic heat exchanger. The coolant is generally pure water. The conductivity meter 4 is used to detect whether the water quality meets the standards and to issue an alarm if the water quality does not meet the standards. An automatic exhaust valve 5 is installed at the top of the closed water tank 6 to automatically remove excess gas from the system. The bottom of the closed water tank 6 is connected to the inlet of the low-temperature heat pump unit 10 and the inlet of the dry cooler 18 via a water pump 8. The water pump 8 is connected to the inlet of the dry cooler 18 via an electric valve 2 17. The outlet of the dry cooler 18 is connected to a water flow switch 13 via an electric valve 3 19. The water flow switch 13 alarms and stops the pump in the event of water shortage, preventing the equipment from running at no load. A Y-type filter 7 is installed between the closed water tank 6 and the water pump 8. The coolant in the closed water tank 6 is filtered through the Y-type filter 7 before being delivered to the rear end. The water pump 8 is connected to the inlet of the low-temperature heat pump unit 10 via an electric valve 9. A PTC heater 12 is installed at the outlet of the low-temperature heat pump unit 10, with a temperature sensor 2 11 located between the PTC heater 12 and the low-temperature heat pump unit 10. The low-temperature heat pump unit 10 and the dry cooler 18 are connected in parallel at the rear end of the water pump 8. The outlets of the low-temperature heat pump unit 10 and the dry cooler 18 converge and connect to the liquid supply port 16 via a water flow switch 13. A temperature sensor 3 14 and a pressure sensor 2 15 are located between the water flow switch 13 and the liquid supply port 16, respectively. These sensors monitor the temperature and pressure of the liquid supplied to the fluoroplastic heat exchanger to ensure they meet the required standards.The equipment also includes an ambient temperature sensor 24, which measures the ambient temperature; the liquid supply port 16 and the liquid return port 1 are both connected to the fluoroplastic heat exchanger through flanges; in order to ensure stable operation of the equipment, the closed water tank 6 is also connected to a water supply tank 25, and a Y-type filter 27, a water supply pump 28, a solenoid valve 3 29 and a ball valve 30 are sequentially arranged between the water supply tank 25 and the closed water tank 6, and the temperature sensor 4 26 monitors the temperature of the coolant in the water supply tank 25. The water supply tank 25 is also provided with a liquid filling port. When the equipment is short of liquid, the water supply pump 28 is started, the solenoid valve 3 29 and the ball valve 3 30 are both opened, and the coolant in the water supply tank 25 is filtered through the Y-type filter 27 and enters the closed water tank 6. The bottom of the closed water tank 6 is also connected to a drain pipe 31, which connects the inlet and outlet of the dry cooler 18; the drain pipe 31 is connected to the closed water tank 6 through the second ball valve 23, and the inlet of the dry cooler 18 is connected to the first ball valve 21 through the second solenoid valve 22; the outlet of the dry cooler 18 is connected to the first ball valve 21 through the first solenoid valve 20; the first ball valve 21 and the second ball valve 23 are merged into the drain pipe 31.

[0020] Figure 1 This is a schematic diagram of a temperature control device. The liquid supply port 16 of the temperature control device is connected to the inlet of the fluoroplastic heat exchanger, and the liquid return port 1 of the temperature control device is connected to the outlet of the fluoroplastic heat exchanger. The fluoroplastic heat exchanger is placed in the iron-chromium electrolyte. The coolant flows out of the fluoroplastic heat exchanger and returns to the closed water tank 6. The automatic exhaust valve 5 exhausts the gas in the system. The coolant then passes through the Y-type filter 7 to reach the water pump 8. Under conditions where the electrolyte needs to be heated, the low-temperature heat pump unit 10 is activated, the electric valve 19 is opened, the electric valve 2 17 and the electric valve 3 19 are closed, and the coolant is heated by the low-temperature heat pump unit 10 and then transported to the liquid supply port 16. Under extremely low temperature conditions, the PTC heater 12 can be turned on for auxiliary heating, and finally supplied to the fluoroplastic heat exchanger at the liquid supply port 16. Under conditions where the electrolyte needs to be cooled, the dry cooler 18 is activated, the electric valve 19 is closed to cut off the coolant from flowing into the low-temperature heat pump unit 10, the electric valve 2 17 and the electric valve 3 19 are opened, and the coolant passes through the dry cooler 18. The system then cools down and finally reaches the liquid supply port 16 to supply the fluoroplastic heat exchanger. When the system requires water replenishment, the water replenishment pump 28 draws water from the water replenishment tank 25, passes it through the Y-type filter 27, and simultaneously opens the solenoid valve 3 29 and ball valve 3 30 to replenish the entire system. When the system does not require cooling and the temperature drops below zero, the coolant risks freezing and damaging the dry cooler 18. At this point, the automatic drain line 31 is activated, solenoid valves 1 20 and 2 22 are opened to drain the coolant from the dry cooler 18, and ball valve 2 23 drains the coolant from the closed water tank 6. The above is a system principle of temperature control equipment. The equipment can be selected and designed according to the actual application scenario, allowing for multi-scenario applications.

[0021] The above embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

Claims

1. A temperature control device, characterized in that: The invention comprises a closed water tank (6), wherein the inlet of the closed water tank (6) is provided with a liquid return port (1), the top of the closed water tank (6) is provided with an automatic exhaust valve (5), the bottom of the closed water tank (6) is connected to the inlet of a low-temperature heat pump unit (10) and the inlet of a dry cooler (18) through a water pump (8), and the low-temperature heat pump unit (10) and the dry cooler (18) are connected in parallel at the rear end of the water pump (8); the low-temperature heat pump unit (10) and the dry cooler (18) are connected in parallel to the rear end of the water pump (8); The outlets of the closed water tank (6) are connected to the liquid supply port (16) through the water flow switch (13) after being converged; the closed water tank (6) is also connected to the water supply tank (25), and a second Y-type filter (27), a water supply pump (28), a third solenoid valve (29) and a third ball valve (30) are sequentially arranged between the water supply tank (25) and the closed water tank (6); the bottom of the closed water tank (6) is also connected to a drainage pipeline (31), and the drainage pipeline (31) is connected to the dry cooler (18).

2. The temperature control device according to claim 1, characterized in that: A temperature sensor (2), a pressure sensor (3) and a conductivity meter (4) are sequentially arranged between the liquid return port (1) and the closed water tank (6).

3. The temperature control device according to claim 2, characterized in that: A Y-type filter (7) is provided between the closed water tank (6) and the water pump (8), and the water pump (8) is connected to the inlet of the low-temperature heat pump unit (10) through an electric valve (9); a PTC heater (12) is provided in the outlet direction of the low-temperature heat pump unit (10), and a temperature sensor (11) is provided between the PTC heater (12) and the low-temperature heat pump unit (10).

4. The temperature control device according to claim 3, characterized in that: The water pump (8) is connected to the inlet of the dry cooler (18) through the electric valve 2 (17), and the outlet of the dry cooler (18) is connected to the water flow switch (13) through the electric valve 3 (19).

5. The temperature control device according to claim 4, characterized in that: A third temperature sensor (14) and a second pressure sensor (15) are sequentially arranged between the water flow switch (13) and the liquid supply port (16).

6. The temperature control device according to claim 1, wherein: The device also includes an ambient temperature sensor (24) for measuring ambient temperature; a liquid discharge pipe (31) is connected to the closed water tank (6) via a second ball valve (23); and the liquid discharge pipe (31) is connected to the dry cooler (18) via a first ball valve (21).

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