Freezing and thawing device of supercooled water supply system
By introducing a low-temperature constant-temperature cooling chamber, a heating and de-icing mechanism, and an impurity removal and gas supply mechanism into the subcooled water supply system, the problem of pipe ice blockage caused by the easy freezing of subcooled water was solved, the system achieved rapid de-icing and cleaning, and the stability of the subcooled water supply was ensured.
Patent Information
- Application Number
- CN202511586614.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-02
- Publication Date
- 2025-12-09
AI Technical Summary
In subcooled water supply systems, the metastable nature of subcooled water makes large volumes of subcooled water prone to freezing, causing ice blockage in transport pipelines that is difficult to control. Furthermore, ordinary heating and other de-icing methods cannot effectively remove tiny air bubbles in the pipelines, leading to intermittent system operation.
A freeze-thaw device for a supercooled water supply system was designed, including a low-temperature constant-temperature cooling chamber, a heating and ice-melting mechanism, a wiring mechanism, and a gas supply mechanism for removing impurities. The device monitors ice blockage signals through a temperature sensor, triggers the ice-melting process automatically by linking a temperature controller, and uses CO2 gas and a drain valve to remove residues in the pipes, ensuring uniform and efficient heating.
It effectively alleviates ice blockage, shortens system recovery time, ensures stable operation of the subcooled water supply system, and avoids secondary ice blockage.
Smart Images
Figure CN121089332A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of supercooled water supply technology, and more specifically to a freeze-thaw device for a supercooled water supply system. Background Technology
[0002] Supercooled water, also known as supercooled water, refers to water that remains liquid at a temperature below 0°C under standard atmospheric pressure. Its formation originates from the fact that water molecules, during the cooling process, cannot solidify into ice according to the conventional law if there is a lack of sufficient condensation nuclei (such as tiny impurities, bubbles, etc.), thus being in a special metastable state domain. Therefore, it is used in the simulation of supercooled water dynamic ice-making slurry and supercooled large water droplet cloud and fog environment.
[0003] Despite the promising applications of subcooled water, its metastable characteristics present significant technical challenges—large volumes of subcooled water are prone to freezing. In subcooled water supply systems, as subcooled water flows through transport pipelines, tiny protrusions on the pipeline walls, residual impurities, or trace amounts of air introduced during system operation can all become condensation nuclei, triggering rapid condensation of the subcooled water. The resulting ice accumulates within the pipeline, eventually causing ice blockage.
[0004] However, the metastable characteristics of subcooled water make it prone to freezing in large volumes, and the resulting ice blockage in the transport pipeline is difficult to control. This can cause the subcooled water supply system to be interrupted, and ordinary heating and other de-icing methods cannot remove the tiny air bubbles in the pipeline. When the subcooled water supply system is restarted, it is very easy for it to freeze again, and it cannot reach the system capacity before the freeze-thaw cycle. Summary of the Invention
[0005] In view of the problems existing in the prior art, the present invention is proposed.
[0006] Therefore, the purpose of this invention is to provide a freeze-thaw device for a subcooled water supply system. The problem to be solved is that due to the metastable characteristics of subcooled water, large volumes of subcooled water are prone to freezing, which makes it difficult to control the ice blockage in the transport pipeline. Furthermore, ordinary heating and other ice-melting methods cannot remove the tiny air bubbles in the pipeline, and the subcooled water supply system is very easy to freeze again after restarting.
[0007] To achieve the above objectives, the present invention provides the following technical solution: a freeze-thaw device for a supercooled water supply system, comprising a supercooled water supply pipe, a low-temperature constant-temperature cooling chamber provided on the supercooled water supply pipe, a water bath chamber for filling refrigerant opened in the low-temperature constant-temperature cooling chamber, a supercooled water inlet and a supercooled water outlet respectively provided at both ends of the supercooled water supply pipe extending outside the low-temperature constant-temperature cooling chamber, a wiring mechanism provided on the supercooled water supply pipe and located in the low-temperature constant-temperature cooling chamber, and a heating and ice-melting mechanism installed on the supercooled water supply pipe through the wiring mechanism, and an impurity removal and gas supply mechanism provided at the end of the supercooled water supply pipe near the supercooled water inlet; The heating and ice-melting mechanism includes a terminal block fixedly installed at one end of the low-temperature constant temperature cooling chamber near the subcooled water output end, and the terminal block is equipped with coupling heating wires distributed along the axial direction of the subcooled water supply pipe. The coupling heating wires are arranged in a ring array around the subcooled water supply pipe. The terminal block is connected to the DC power supply via a wire, and the coupling heating wires are also connected to the DC power supply via the terminal block.
[0008] As a preferred embodiment of the freeze-thaw device of the supercooled water supply system of the present invention, the heating and ice-melting mechanism further includes a temperature controller installed on a DC power supply, and a temperature sensor connected to the electrical signal of the temperature controller is provided on the supercooled water supply pipe. The temperature sensor is located at one end of the supercooled water supply pipe near the supercooled water output end and is arranged to avoid the coupling heating line.
[0009] As a preferred embodiment of the freeze-thaw device for the subcooled water supply system of the present invention, the wiring mechanism includes a cable management ring fixedly installed outside the subcooled water supply pipe. The cable management ring is connected to the subcooled water supply pipe with a clearance fit, and the cable management ring is linearly arranged along the axial direction of the subcooled water supply pipe. Each cable management ring is provided with a heat storage groove.
[0010] As a preferred embodiment of the freeze-thaw device for the subcooled water supply system of the present invention, the wiring mechanism further includes a protective sleeve that is detachably installed on the cable management ring. The protective sleeve is arranged in a ring array around the cable management ring. The protective sleeve is arranged linearly along the axial direction of the corresponding coupling heating wire. The protective sleeve is provided with an integrally formed heat-conducting block. One end of the heat-conducting block is connected to the subcooled water supply pipe.
[0011] As a preferred embodiment of the freeze-thaw device of the supercooled water supply system of the present invention, wherein: a drain valve for controlling the flow of supercooled water in the supercooled water supply pipe is provided at one end near the supercooled water output end, and a gas-liquid tee is provided at one end near the supercooled water input end of the supercooled water supply pipe, which is connected to the impurity removal gas supply mechanism.
[0012] As a preferred embodiment of the freeze-thaw device of the supercooled water supply system of the present invention, wherein: the two ends of the low-temperature constant temperature cooling chamber are respectively provided with water bath ports that are connected to the water bath chamber in the low-temperature constant temperature cooling chamber, and the low-temperature constant temperature cooling chamber is also provided with cooling chamber supports along its axial direction.
[0013] As a preferred embodiment of the freeze-thaw device of the supercooled water supply system of the present invention, the impurity removal gas supply mechanism includes a supercooled water supply pipeline, a peristaltic pump for providing pressure is provided on the supercooled water supply pipeline, one end of the supercooled water supply pipeline extending outside the peristaltic pump is connected to a gas-liquid tee, and the supercooled water supply pipeline is made of flexible hose.
[0014] As a preferred embodiment of the freeze-thaw device of the supercooled water supply system of the present invention, the impurity removal gas supply mechanism further includes a CO2 gas cylinder, the CO2 gas cylinder is provided with a gas supply pipeline connected to a gas-liquid tee, and the gas supply pipeline and the gas-liquid tee are connected by a pressure gauge valve.
[0015] As a preferred embodiment of the freeze-thaw device for the supercooled water supply system of the present invention, one end of the gas-liquid tee is provided with a water injection valve for controlling the on / off of the supercooled water supply pipeline, and the other end of the gas-liquid tee is provided with a gas supply check valve for controlling the on / off of the gas supply pipeline.
[0016] In summary, the present invention has at least one of the following beneficial effects: 1. This invention uses a temperature sensor to capture the sudden temperature rise signal when ice blockage occurs, and links a temperature controller to automatically trigger the ice melting process. It also automatically stops heating after the temperature rises to 5°C and is maintained for 3 minutes, which can effectively alleviate the ice blockage phenomenon.
[0017] 2. This invention, by combining CO2 gas with a drain valve to remove residual wastewater, air bubbles and impurities in the pipe, can effectively avoid secondary ice blockage and shorten system recovery time.
[0018] 3. This invention, through the cable management ring and protective sleeve of the wiring mechanism, does not affect the metastable state of subcooled water during normal water supply, and ensures uniform heating and efficient temperature transfer during ice melting. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.
[0020] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a cross-sectional perspective view of the present invention; Figure 3 This is a structural diagram showing the installation of the low-temperature constant-temperature cooling chamber and the heating and ice-melting mechanism of the present invention. Figure 4 This is a structural diagram showing the installation of the wiring mechanism and the heating and de-icing mechanism of the present invention. Figure 5 This is a structural diagram of the impurity removal gas supply mechanism of the present invention; Figure 6 This is a structural diagram of the wiring mechanism of the present invention.
[0021] Explanation of reference numerals in the attached figures: 1. Subcooled water supply pipe; 101. Subcooled water inlet; 102. Subcooled water outlet; 2. Low-temperature constant temperature cooling chamber; 201. Water bath inlet; 202. Cooling chamber support; 3. Terminal block; 4. Coupled heating wire; 5. DC power supply; 6. Temperature controller; 7. Temperature sensor; 8. Cable management ring; 801. Heat storage tank; 9. Protective sleeve; 901. Heat-conducting block; 10. Drain valve; 11. Gas-liquid tee; 1101. Water injection valve; 1102. Gas supply check valve; 12. Subcooled water supply pipeline; 13. Peristaltic pump; 14. CO2 cylinder; 15. Gas supply pipeline; 16. Pressure gauge valve. Detailed Implementation
[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0023] This invention discloses a freeze-thaw device for a subcooled water supply system. Example
[0024] Reference Figure 1-6This invention provides a freeze-thaw device for a subcooled water supply system, comprising a subcooled water supply pipe 1, a low-temperature constant-temperature cooling chamber 2 on the subcooled water supply pipe 1, a water bath chamber for filling refrigerant in the low-temperature constant-temperature cooling chamber 2, subcooled water inlet 101 and subcooled water outlet 102 at the two ends extending from the subcooled water supply pipe 1 outside the low-temperature constant-temperature cooling chamber 2, respectively, and a wiring mechanism on the subcooled water supply pipe 1 located in the low-temperature constant-temperature cooling chamber 2, and a heating and ice-melting mechanism is installed on the subcooled water supply pipe 1 through the wiring mechanism. A purification and air supply mechanism is provided at one end of the water pipe 1 near the subcooled water inlet 101. The heating and ice-melting mechanism includes a terminal block 3 fixedly installed at one end of the low-temperature constant-temperature cooling chamber 2 near the subcooled water outlet 102. Coupled heating wires 4 are installed on the terminal block 3, distributed along the axial direction of the subcooled water supply pipe 1. The coupled heating wires 4 are arranged in a ring array around the subcooled water supply pipe 1. The terminal block 3 is electrically connected to the DC power supply 5 through wires, and all coupled heating wires 4 are electrically connected to the DC power supply 5 through the terminal block 3. The subcooled water supply pipe 1, as the core channel for subcooled water transportation, is a rigid straight pipe with an inner diameter of... Designed according to the subcooled water supply flow requirements, this system ensures uniform resistance during subcooled water flow within the pipes, reducing the formation of localized condensation nuclei caused by flow velocity fluctuations. Subcooled water cooling is achieved through a water bath chamber in a low-temperature constant-temperature cooling chamber 2. The water bath chamber controls the internal refrigerant temperature to regulate the temperature reduction and flow rate of the subcooled water from the subcooled water inlet 101 to the subcooled water outlet 102. Both the subcooled water inlet 101 and the subcooled water outlet 102 utilize quick-connect couplings for easy connection to downstream ice-making equipment or cloud / fog simulation systems. Sealing rings are installed at the couplings to prevent subcooled water leakage and external contamination. Air mixing is prevented. The terminal block 3 is made of high-temperature resistant ceramic material. Its connection surface with the low-temperature constant temperature cooling chamber 2 is equipped with an insulating gasket. The coupling heating wire 4 is wrapped with an insulating protective layer to ensure protection during heat transfer. The number of coupling heating wires 4 can be increased or decreased according to the diameter of the subcooled water supply pipe 1 to ensure uniform temperature around the pipe during heating. The DC power supply 5 can be adjusted by its own knob. By adjusting the voltage, the power of the coupling heating wire 4 can be controlled to meet the ice melting needs under different degrees of ice blockage. When the ice blockage is more severe, the power can be increased to melt the ice quickly, and when the ice blockage is less severe, the power can be reduced to save energy.
[0025] The heating and ice-melting mechanism also includes a temperature controller 6 installed on the DC power supply 5, and a temperature sensor 7 connected to the temperature controller 6 via an electrical signal is installed on the subcooled water supply pipe 1. The temperature sensor 7 is located at the end of the subcooled water supply pipe 1 near the subcooled water output end 102 and is arranged to avoid contact with the coupling heating wire 4. The temperature sensor 7 and the temperature controller 6 together constitute a temperature monitoring module. The output temperature is monitored by the temperature sensor 7 and the temperature controller 6. The temperature controller 6 is a digital display intelligent controller. When the temperature displayed by the temperature controller 6 rises rapidly from below 0°C to above 0°C, ice blockage occurs in the subcooled water supply pipe 1.
[0026] The wiring mechanism includes a cable management ring 8 fixedly installed outside the subcooled water supply pipe 1. The cable management ring 8 is connected to the subcooled water supply pipe 1 with a clearance fit, and the cable management ring 8 is linearly arranged along the axial direction of the subcooled water supply pipe 1. Each cable management ring 8 is provided with a heat storage groove 801. The cable management ring 8 is fixed outside the pipe by a clamp, which can orderly sort the coupled heating wires 4 and prevent the heating wires from getting tangled or displaced due to pipe vibration in low temperature environment. The heat storage groove 801 is an annular groove structure that can temporarily store heat when heating and melting ice, slow down the temperature drop rate after heating stops, and prevent the pipe from freezing again due to sudden temperature drop.
[0027] The wiring mechanism also includes a detachable protective sleeve 9 installed on the cable management ring 8. The protective sleeves 9 are arranged in a ring array around the cable management ring 8 and are linearly arranged along the axial direction of the corresponding coupling heating wire 4. The protective sleeve 9 is provided with an integrally formed heat-conducting block 901. The end of the heat-conducting block 901 extends to abut against the subcooled water supply pipe 1. The protective sleeve 9 has good high temperature resistance and insulation. Its inner diameter is adapted to the outer diameter of the coupling heating wire 4. It can work with the insulating protective layer to provide physical protection for the coupling heating wire 4. The protective sleeve 9 is detachably connected to the cable management ring 8 through a snap-fit structure. The heat-conducting block 901 can efficiently transfer the heat generated by the coupling heating wire 4 to the outer wall of the pipe, so that the temperature in the circumferential direction of the pipe rises evenly.
[0028] The subcooled water supply pipe 1 is equipped with a drain valve 10 at one end near the subcooled water output end 102 to control the flow of subcooled water in the subcooled water supply pipe 1. The subcooled water supply pipe 1 is equipped with a gas-liquid tee 11 connected to the impurity removal gas supply mechanism at one end near the subcooled water input end 101. The drain valve 10 is an electric shut-off valve, which is electrically linked to the temperature controller 6. When the temperature controller 6 detects that the ice in the pipe has completely melted, it can automatically control the drain valve 10 to open and discharge the melted water from the pipe to avoid the melted water remaining in the pipe.
[0029] The low-temperature constant temperature cooling chamber 2 has water bath ports 201 at both ends that are connected to the water bath chamber in the low-temperature constant temperature cooling chamber 2. The low-temperature constant temperature cooling chamber 2 also has cooling chamber supports 202 distributed along its axial direction. The low-temperature constant temperature cooling chamber 2 can be circulated with low-temperature refrigerant through the water bath ports 201 in a bottom-in and top-out manner to achieve uniform circulation, so that the temperature inside the low-temperature constant temperature cooling chamber 2 is stably controlled between -5℃ and 0℃, providing a constant low-temperature environment for the subcooled water to maintain a metastable state in the pipe.
[0030] The impurity removal gas supply mechanism includes a subcooled water supply pipeline 12, on which a peristaltic pump 13 for providing pressure is installed. One end of the subcooled water supply pipeline 12 extends to the outside of the peristaltic pump 13 and is connected to the gas-liquid tee 11. The subcooled water supply pipeline 12 is made of flexible hose, and the peristaltic pump 13 is an adjustable speed peristaltic pump. It delivers subcooled water by squeezing the hose, avoiding direct contact between the subcooled water and the internal components of the pump body, and can achieve a water supply flow rate of 0.38-380ml / min.
[0031] The impurity-removing gas supply mechanism also includes a CO2 cylinder 14. The CO2 cylinder 14 is equipped with a gas supply pipeline 15 connected to a gas-liquid tee 11. The gas supply pipeline 15 and the gas-liquid tee 11 are connected by a pressure gauge valve 16. The CO2 cylinder 14 is a standard gas cylinder equipped with a safety pressure relief structure and stores safe-state liquid CO2 inside. After vaporization, it is delivered to the gas-liquid tee 11 through the gas supply pipeline 15. The pressure gauge valve 16 integrates the functions of a pressure gauge and a shut-off valve. The pressure gauge has a range of 0-2MPa and can display the gas pressure in the gas supply pipeline 15 in real time. The operator can adjust the valve opening according to the pressure value to control the delivery pressure of CO2 gas.
[0032] One end of the gas-liquid tee 11 is equipped with a water injection valve 1101 for controlling the opening and closing of the subcooled water supply pipeline 12, and the other end of the gas-liquid tee 11 is equipped with a gas supply check valve 1102 for controlling the opening and closing of the gas supply pipeline 15. The gas-liquid tee 11 has a one-way flow guide structure inside, which can prevent the subcooled water or CO2 gas from flowing backward. Its three ports are respectively sealed and connected to the subcooled water supply pipe 1, the subcooled water supply pipeline 12, and the gas supply pipeline 15. After the subcooled water supply pipe 1 melts and becomes a passage, the pressure gauge valve 16 is opened to 0.1 MPa, and the gas supply check valve 1102 in the gas supply pipeline 15 is opened. At this time, the gas supply check valve 1102 remains closed, and the gas in the CO2 gas cylinder 14 is introduced into the subcooled water supply pipe 1 to remove residual water droplets, air bubbles and other impurities in the pipeline, ensuring the cleanliness of the pipeline.
[0033] During the process of transporting subcooled water using this device, the peristaltic pump 13 delivers room temperature water to the subcooled water supply pipe 1. A refrigerant of -5℃ to 0℃ is introduced into the cooling chamber of the low-temperature constant temperature cooling chamber 2. The water temperature is reduced to the target temperature (-2℃ to -4℃) through water bath heat exchange, forming subcooled water. The subcooled water is then transported to downstream equipment through the subcooled water output terminal 102 on the subcooled water supply pipe 1. The temperature sensor 7 monitors the temperature of the subcooled water output terminal 102 on the subcooled water supply pipe 1 in real time. The temperature controller 6 displays that the temperature is stable within the target range, and the system is operating normally. When ice blockage occurs in the subcooled water supply pipe 1, the subcooled water condenses and releases latent heat. Temperature sensor 7 detects that the temperature rises rapidly from the target temperature to around 0°C. Temperature controller 6 triggers an ice blockage alarm and sends a signal to peristaltic pump 13. Peristaltic pump 13 stops supplying water to prevent the ice blockage from worsening. The temperature controller 6 synchronously sends a signal to the controllable DC power supply 5. The DC power supply 5 starts and supplies power to the coupled heating wire 4 through the terminal block 3. During the heating process, the temperature controller 6 monitors the pipeline temperature in real time. When the temperature rises to 5°C and is maintained for 3 minutes (to ensure that the ice is completely melted), the temperature controller 6 sends a signal to the DC power supply 5, the power supply stops, and the ice melting stage ends. After the ice melting is completed, the temperature controller 6 sends a signal to the impurity removal gas supply mechanism, opens the pressure gauge valve 16 of the CO2 cylinder 14, adjusts the output pressure to 0.1MPa, and at the same time opens the drain valve 10 of the subcooled water supply pipe 1, closes the water injection valve 1101 on the peristaltic pump 13 and the subcooled water supply pipe 12. The CO2 gas flows along the cold water and subcooled water supply pipe 1, and discharges the residual wastewater, micro bubbles and impurities in the pipe from the drain valve 10, so as to achieve ice melting within 5 minutes, impurity removal within 7 minutes, and restoration of the subcooled water supply to the pre-freeze-thaw capacity within 10 minutes, allowing it to run again. After the impurities are removed, the CO2 cylinder 14 and drain valve 10 are closed, the refrigerant supply to the cooling chamber in the low-temperature constant temperature cooling chamber 2 is restarted, the subcooled water re-enters the subcooled water supply pipe 1, the temperature sensor 7 monitors the temperature and it returns to the target range, and the system resumes normal operation. During this process, the cable management ring 8 and the protective sleeve 9 in the cabling mechanism are in a static support state, and are only in contact with the subcooled water supply pipe 1 through the heat conduction block 901. This does not affect the metastable state of the subcooled water in the subcooled water supply pipe 1, and it also sorts out the coupling heating wire 4 to prevent tangling. After the coupling heating wire 4 is energized, the cable management ring 8 and the protective sleeve 9 constrain the position of the heating wire to ensure uniform heating. The protective sleeve 9 efficiently transfers heat through the heat conduction block 901 and the heat storage tank 801, which helps the subcooled water supply pipe 1 to heat up to 5°C quickly.
[0034] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.
Claims
1. A freeze-thaw device for a subcooled water supply system, characterized in that: Includes a supercooled water supply pipe (1), a low-temperature constant temperature cooling chamber (2) is provided on the supercooled water supply pipe (1), a water bath chamber for filling refrigerant is opened in the low-temperature constant temperature cooling chamber (2), the two ends of the supercooled water supply pipe (1) extending to the outside of the low-temperature constant temperature cooling chamber (2) are respectively provided with a supercooled water inlet (101) and a supercooled water outlet (102), a wiring mechanism is provided on the supercooled water supply pipe (1) and located in the low-temperature constant temperature cooling chamber (2), and a heating and ice melting mechanism is installed on the supercooled water supply pipe (1) through the wiring mechanism, and a gas supply mechanism for removing impurities is provided at the end of the supercooled water supply pipe (1) near the supercooled water inlet (101); The heating and ice-melting mechanism includes a terminal block (3) fixedly installed on one end of the low-temperature constant temperature cooling chamber (2) near the subcooled water output end (102), and a coupling heating wire (4) is installed on the terminal block (3) along the axial direction of the subcooled water supply pipe (1), and the coupling heating wire (4) is arranged in a ring array around the subcooled water supply pipe (1). The terminal block (3) is connected to the DC power supply (5) via a wire, and the coupling heating wire (4) is also connected to the DC power supply (5) via the terminal block (3).
2. The freeze-thaw device for a subcooled water supply system according to claim 1, characterized in that, The heating and ice-melting mechanism also includes a temperature controller (6) installed on the DC power supply (5), and a temperature sensor (7) connected to the temperature controller (6) is provided on the subcooled water supply pipe (1). The temperature sensor (7) is located at one end of the subcooled water supply pipe (1) near the subcooled water output end (102) and is arranged to avoid the coupling heating line (4).
3. The freeze-thaw device for a subcooled water supply system according to claim 2, characterized in that, The wiring mechanism includes a cable management ring (8) fixedly installed outside the subcooled water supply pipe (1). The cable management ring (8) is connected to the subcooled water supply pipe (1) with a clearance fit, and the cable management ring (8) is linearly arranged along the axial direction of the subcooled water supply pipe (1). Each cable management ring (8) is provided with a heat storage groove (801).
4. The freeze-thaw device for a subcooled water supply system according to claim 3, characterized in that, The wiring mechanism also includes a protective sleeve (9) that is detachable and installed on the cable management ring (8). The protective sleeve (9) is arranged in a ring array around the cable management ring (8). The protective sleeve (9) is arranged linearly along the axial direction of the corresponding coupling heating wire (4). The protective sleeve (9) is provided with an integrally formed heat-conducting block (901). The heat-conducting block (901) extends to one end and is connected to the subcooled water supply pipe (1).
5. The freeze-thaw device for a subcooled water supply system according to claim 1, characterized in that, The subcooled water supply pipe (1) is provided with a drain valve (10) for controlling the flow of subcooled water in the subcooled water supply pipe (1) at one end near the subcooled water output end (102), and a gas-liquid tee (11) connected to the impurity removal gas supply mechanism is provided at the other end of the subcooled water supply pipe (1) near the subcooled water input end (101).
6. The freeze-thaw device for a subcooled water supply system according to claim 1, characterized in that, The low-temperature constant temperature cooling chamber (2) is provided with water bath ports (201) at both ends, which are connected to the water bath chamber in the low-temperature constant temperature cooling chamber (2). The low-temperature constant temperature cooling chamber (2) is also provided with cooling chamber supports (202) along its axial direction.
7. The freeze-thaw device for a subcooled water supply system according to claim 6, characterized in that, The impurity removal gas supply mechanism includes a supercooled water supply pipeline (12), on which a peristaltic pump (13) for providing pressure is provided. One end of the supercooled water supply pipeline (12) extending outside the peristaltic pump (13) is connected to a gas-liquid tee (11), and the supercooled water supply pipeline (12) is made of a flexible hose.
8. The freeze-thaw device for a subcooled water supply system according to claim 7, characterized in that, The impurity removal gas supply mechanism also includes a CO2 gas cylinder (14), on which a gas supply pipeline (15) is provided that is connected to a gas-liquid tee (11). The gas supply pipeline (15) and the gas-liquid tee (11) are connected by a pressure gauge valve (16).
9. The freeze-thaw device for a subcooled water supply system according to claim 5, characterized in that, One end of the gas-liquid tee (11) is provided with a water injection valve (1101) for controlling the opening and closing of the subcooled water supply pipeline (12), and the other end of the gas-liquid tee (11) is provided with a gas supply check valve (1102) for controlling the opening and closing of the gas supply pipeline (15).