Heat exchanger for water quality improving device and water quality improving device

Abstract

The utility model relates to the technical field of water quality purification, in particular to a heat exchanger for a water quality improving device and the water quality improving device. The heat exchanger comprises a shell made of a heat conduction material, and a closed cavity is formed in the shell and used for containing water to be cooled; the cooling water input pipe is arranged at the lower end of the shell; the cooling water output pipe is arranged at the upper end of the shell; the heat conduction structure is provided with a heat exchange liquid input pipe, a heat exchange liquid output pipe and a heat conduction part which are mounted on the shell, and is used for conveying heat exchange liquid; the heat conduction part comprises heat conduction pipes which are arranged in a bent and extending mode, and the multiple heat conduction pipes are arranged in the cavity of the shell in a dispersed mode. According to the water quality improving device, the bent and extended heat conduction pipe is arranged in the heat exchanger, so that the contact area for exchanging heat is greatly increased, and the cooling efficiency of the heat exchanger in the water quality improving device on cooling water is improved.

Description

Technical Field

[0001] This utility model relates to the field of water purification technology, and in particular to a heat exchanger and a water quality improvement device for use in water quality improvement devices. Background Technology

[0002] Currently, heavy ion high-voltage platforms operate at voltages exceeding 300,000 volts under normal conditions, placing high demands on the quality and efficiency of the cooling water. Otherwise, a load current exceeding 5mA will form in the cooling circuit, triggering the high-voltage power supply's load protection mechanism. This will cause the actual applied voltage of the heavy ion high-voltage platform to fall below the set value, severely impacting its normal operation.

[0003] In heavy ion high-voltage platforms, the equipment requiring water cooling protection is primarily located at a high potential of 300,000 volts. Cooling water is supplied from the zero-potential end to the high-voltage end to cool the equipment before circulating back to the zero-potential end. This circulation environment demands both high-quality cooling water and an efficient water quality enhancement system to lower the cooling water temperature. Otherwise, under 300,000 volt high-voltage conditions, current will flow into the cooling water circulation circuit, causing excessive load on the platform and preventing high-voltage operation. Simultaneously, it can cause arcing in the heavy ion high-voltage platform, potentially leading to equipment damage and severely impacting the continuous operation of the platform. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the related art. To this end, this invention proposes a heat exchanger and a water quality improvement device for a water quality improvement device, so as to achieve the purpose of the water quality improvement device being able to efficiently reduce the temperature of cooling water while ensuring that the cooling water maintains a high water quality during the circulation process.

[0005] In a first aspect, this utility model provides a heat exchanger for a water quality improvement device. The heat exchanger includes: a shell made of a thermally conductive material, wherein the interior of the shell is configured as a closed cavity for containing water to be cooled.

[0006] A cooling water inlet pipe is located at the lower end of the housing;

[0007] A cooling water outlet pipe is located at the upper end of the housing;

[0008] A heat-conducting structure has a heat exchange liquid inlet pipe, a heat exchange liquid outlet pipe and a heat-conducting part installed on the housing, for conveying heat exchange liquid;

[0009] The heat-conducting part includes a heat-conducting tube that is bent and extended, and a plurality of the heat-conducting tubes are distributed in the cavity of the housing.

[0010] According to the present invention, a heat exchanger for a water quality improvement device is provided, wherein the heat-conducting part further includes a heat-conducting layer that is attached to the outer side of the shell;

[0011] The thermally conductive layer is connected to the heat exchange liquid inlet pipe at one end and to the heat exchange liquid outlet pipe at the other end; the thermally conductive layer completely covers the outer surface of the shell.

[0012] According to the present invention, a heat exchanger for a water quality improvement device is provided, wherein the heat exchange liquid inlet pipe is installed on the left side of the shell and close to the cooling water outlet pipe;

[0013] The heat exchange liquid output pipe is installed on the right side of the housing and is close to the cooling water input pipe.

[0014] According to the present invention, a heat exchanger for a water quality improvement device is provided, wherein the heat exchange liquid inlet pipe is provided with a first secondary pipe extending from the top of the shell to the bottom of the shell, and the heat exchange liquid outlet pipe is provided with a second secondary pipe extending from the bottom of the shell to the top of the shell.

[0015] The heat pipe is connected between the first secondary pipe and the second secondary pipe.

[0016] According to the present invention, a heat exchanger for a water quality improvement device is provided, wherein the heat-conducting tube extends in a wavy manner in the horizontal direction, and a plurality of the heat-conducting tubes are arranged at intervals between each other.

[0017] According to the present invention, a heat exchanger for a water quality improvement device is provided in which the spacing between adjacent heat-conducting pipes gradually decreases from the bottom to the top of the shell.

[0018] According to the present invention, a heat exchanger for a water quality improvement device is provided, wherein the heat-conducting part further includes an air supply mechanism disposed outside the housing for accelerating the airflow outside the housing.

[0019] Secondly, this utility model also provides a water quality improvement device, including a water tank, a water quality improvement system and an automated constant pressure control system, and also includes any of the heat exchangers mentioned above.

[0020] The water tank, the automated constant pressure control system, and the heat exchanger are connected in series to reduce the water temperature.

[0021] The water quality improvement system is connected separately to the water tank and is used to improve water quality.

[0022] According to the present invention, a water quality improvement device is provided, wherein the water quality improvement system includes a primary filter, a secondary filter and a tertiary filter connected in series.

[0023] The primary filter is connected to the side filter outlet of the water tank, and the tertiary filter is connected to the side filter inlet of the water tank.

[0024] According to the present invention, a water quality improvement device is provided, wherein the automated constant pressure control system includes a PLC, a human-machine interface, and a low-voltage electrical system.

[0025] The above-mentioned one or more technical solutions of this utility model have at least one of the following technical effects: by setting a curved and extended heat-conducting pipe in the heat exchanger, the contact area for exchanging heat is greatly increased, thereby improving the efficiency of the heat exchanger in the water quality improvement device for cooling water.

[0026] In addition to the technical problems solved by this utility model, the technical features of the technical solutions constituted by this utility model, and the advantages brought about by these technical features, as described above, other technical features of this utility model and the advantages brought about by these technical features will be further explained in conjunction with the accompanying drawings, or can be learned through the practice of this utility model. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of a heat exchanger provided in an embodiment of the present invention.

[0029] Figure 2 This is a schematic diagram of the water quality improvement device provided in an embodiment of the present invention.

[0030] Figure 3 A schematic diagram of the structure of a water quality improvement device for a heavy ion high-pressure platform provided in an embodiment of this utility model.

[0031] Figure 4 A schematic diagram of a water quality improvement system provided in an embodiment of this utility model.

[0032] Figure 5 This is a schematic diagram of the structure of a heat exchanger provided in an embodiment of the present utility model.

[0033] Figure 6 This is a schematic diagram of an automated constant pressure control system provided in an embodiment of the present invention.

[0034] Figure label:

[0035] 100. Heat exchanger; 110. Shell; 111. Cooling water inlet pipe; 112. Cooling water outlet pipe; 120. Heat-conducting structure; 121. Heat exchange liquid inlet pipe; 121a. First auxiliary pipe; 122. Heat exchange liquid outlet pipe; 122a. Second auxiliary pipe; 123. Heat-conducting part; 123a. Heat-conducting pipe; 123b. Heat-conducting layer; 123c. Air supply mechanism; 200. Water tank; 300. Water quality improvement system; 400. Automated constant pressure control system. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0037] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0038] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0039] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0040] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0041] In an embodiment of this utility model, a heat exchanger for a water quality improvement device is described.

[0042] like Figure 1 As shown, the heat exchanger 100 includes a shell 110, a cooling water inlet pipe 111, a cooling water outlet pipe 112, and a heat-conducting structure 120.

[0043] Specifically, the housing 110 is made of a thermally conductive material. The interior of the housing 110 is configured as a closed cavity to contain water to be cooled. A cooling water inlet pipe 111 is located at the lower end of the housing 110, connecting the cavity of the housing 110 to the outside. A cooling water outlet pipe 112 is located at the upper end of the housing 110, connecting the cavity of the housing 110 to the outside.

[0044] The heat-conducting structure 120 has a heat exchange liquid inlet pipe 121, a heat exchange liquid outlet pipe 122 and a heat-conducting part 123 installed in the housing 110. The heat exchange liquid delivered into the heat-conducting structure 120 can cool the cooling water stored in the housing 110.

[0045] The heat-conducting part 123 includes a heat-conducting pipe 123a that is bent and extended. A plurality of the heat-conducting pipes 123a are distributed in the cavity of the housing 110.

[0046] In this embodiment, by providing a curved and extended heat-conducting pipe 123a in the heat exchanger 100, the contact area for exchanging heat is greatly increased, thereby improving the efficiency of the heat exchanger 100 in cooling water in the water quality improvement device.

[0047] Based on the above embodiments, another embodiment of this utility model introduces a heat exchanger for a water quality improvement device.

[0048] The heat-conducting part 123 also includes a heat-conducting layer 123b that is attached to the outer side of the housing 110.

[0049] The thermally conductive layer 123b is connected to the heat exchange liquid inlet pipe 121 at one end and to the heat exchange liquid outlet pipe 122 at the other end. The thermally conductive layer 123b completely covers the outer surface of the housing 110.

[0050] Furthermore, the heat exchange liquid inlet pipe 121 is installed on the left side of the housing 110 and is close to the cooling water outlet pipe 112.

[0051] The heat exchange liquid output pipe 122 is installed on the right side of the housing 110 and is close to the cooling water input pipe 111.

[0052] Furthermore, the heat exchange liquid inlet pipe 121 is provided with a first secondary pipe 121a extending from the top of the housing 110 to the bottom of the housing 110 within the housing 110. The heat exchange liquid outlet pipe 122 is provided with a second secondary pipe 122a extending from the bottom of the housing 110 to the top of the housing 110 within the housing 110.

[0053] The heat pipe 123a is connected between the first secondary pipe 121a and the second secondary pipe 122a.

[0054] Based on the above embodiments, another embodiment of this utility model introduces a heat exchanger for a water quality improvement device.

[0055] The heat pipe 123a extends in a wavy pattern along the horizontal direction. Furthermore, several heat pipes 123a are arranged at intervals between each other.

[0056] Furthermore, within the cavity of the housing 110, the spacing between adjacent heat pipes 123a gradually decreases from the bottom to the top of the housing 110.

[0057] Based on the above embodiments, another embodiment of the present invention introduces a heat exchanger 100 for a water quality improvement device.

[0058] like Figure 2As shown, the heat-conducting part 123 also includes an air supply mechanism 123c. The air supply mechanism 123c is disposed outside the housing 110 and is used to accelerate the airflow outside the housing 110.

[0059] On the other hand, another embodiment of this utility model introduces a water quality improvement device.

[0060] like Figure 3 As shown, the water quality improvement device includes a water tank 200, a water quality improvement system 300, and an automated constant pressure control system 400, and also includes the heat exchanger 100 described in any of the above embodiments.

[0061] The water tank 200, the automated constant pressure control system 400, and the heat exchanger 100 are connected in series to reduce the water temperature.

[0062] The water quality improvement system 300 is separately connected to the water tank 200 and is used to improve water quality.

[0063] Furthermore, the water quality improvement system 300 includes a primary filter, a secondary filter, and a tertiary filter connected in series.

[0064] The primary filter is connected to the side filter outlet of the water tank 200, and the tertiary filter is connected to the side filter inlet of the water tank 200.

[0065] Furthermore, the automated constant pressure control system 400 includes a PLC, a human-machine interface, and a low-voltage electrical system.

[0066] Specifically, the water-cooled protection equipment in the heavy ion high-voltage platform mainly includes: the ion source arc cavity and injection components; the molecular pump of the high-voltage platform; the glass lens, the diode deflection magnet, and the power supply. The cooling circulating water primarily cools and protects the equipment on the platform at a high potential of 300,000 volts. The cooling water is supplied from the zero-potential end to the high-voltage end, cooling the equipment before circulating back to the zero-potential end. This circulation environment requires high-quality cooling water (water resistance > 1 MΩ·cm); otherwise, under 300,000 volt high-voltage conditions, current will form in the cooling circulating water circuit, causing excessive load on the platform and preventing the high-voltage system from being applied. Furthermore, poor water quality in the water circulation system can cause arcing in the platform equipment, even leading to equipment damage, severely affecting the continuous operation of the platform.

[0067] To address the aforementioned problems, this utility model provides a water quality improvement device for heavy ion high-pressure platforms. This device performs three-layer filtration on the cooling circulating water, increasing its resistance from 1 MΩ·cm to 5 MΩ·cm. It also establishes variable frequency constant pressure control technology to provide stable water pressure and dynamically monitors water pressure, temperature, and resistance.

[0068] like Figure 3As shown, the water quality improvement device includes: a water tank 200; a water quality improvement system 300, which includes a primary filter, a secondary filter, and a tertiary filter connected in series. The primary filter is connected to the side filter outlet of the water tank 200, and the tertiary filter is connected to the side filter inlet of the water tank 200; a heat exchanger 100, whose cooling water inlet pipe 111 is connected to the circulating water outlet of the water tank 200 via a circulating water pump; whose heat exchange liquid outlet pipe 122 is connected to the inlet of the heavy ion accelerator circulating water system; whose outlet is connected to the heat exchange liquid inlet pipe 121 of the heat exchanger 100; whose cooling water outlet pipe 112 is connected to the cold inlet of the heavy ion high-pressure platform cooling system; whose hot outlet is connected to the circulating water return outlet of the water tank 200; and an automated constant pressure control system 400, which is electrically connected to the circulating water pump.

[0069] Specifically, such as Figure 4 As shown, the water quality improvement system 300 consists of three stages, serving the functions of coarse filtration, deep filtration, and deionization. The primary filter mainly uses PP cotton to filter out silt, rust, large molecular impurities, and suspended solids in the cooling water. The secondary filter performs deep filtration, primarily using an ultrafiltration membrane to filter out organic matter and heavy metals in the cooling water. The tertiary filter deionizes the cooling water by adding a small amount of specialized resin to remove ions. The cooling water in water tank 200 undergoes repeated three-stage purification and deionization, significantly improving water resistance. The water quality improvement system 300, in conjunction with a circulating water pump, circulates approximately 1 ton of water per hour. The replacement cycle for the PP cotton and ultrafiltration membrane is approximately six months (4000 tons), and the resin refill cycle is approximately one year.

[0070] Furthermore, the ultrafiltration membrane includes any one of tubular ultrafiltration membrane, plate and frame ultrafiltration membrane, spiral wound ultrafiltration membrane or hollow fiber ultrafiltration membrane, and the material of the ultrafiltration membrane includes any one of polysulfone, polyethersulfone, polypropylene, polyacrylonitrile, polyvinylidene fluoride, polytetrafluoroethylene, polyvinyl chloride, polysulfonamide, polyetherketone, and polyimide.

[0071] In one specific embodiment of this utility model, the special resin includes any one of a strong acidic cation exchange resin, a weak acidic cation exchange resin, a strong base anion exchange resin, a weak base anion exchange resin, a redox resin, an amphoteric resin, or a chelating resin. Preferably, the resin is an acrylic-based weak acidic cation exchange resin, milky white spherical particles, with a water content of 75-85%, a wet true density of 1.12-1.18 g / ml, a wet apparent density of 0.7-0.82 g / ml, a strength ≥90%, and an exchange capacity ≥11.5 mmol / g.

[0072] like Figure 5As shown, in another embodiment of this utility model, the heat exchanger 100 adopts a plate structure to cool the cooling water circulating from the water tank 200 to the heat exchanger 100, transferring heat from the heavy ion high-pressure platform's dedicated water system to the platform's currently used heavy ion accelerator circulating water system. That is, the heavy ion high-pressure platform's water system does not have dedicated refrigeration equipment; the heat exchanger 100 transfers heat to the heavy ion accelerator circulating water system to achieve the purpose of lowering the water temperature. The plate heat exchanger 100 has a pressure of 1.6 MPa, a design temperature of 150℃, and the plates are made of 304 stainless steel with a thickness of 0.5 mm. The gaskets in the heat exchanger 100 are made of EPDM rubber (ethylene propylene diene monomer rubber), with a temperature resistance of -25℃ to 150℃ and a gasket life of 6 years. The gaskets between the plates have a non-adhesive clip structure, and the plates have protective grooves.

[0073] The heat exchanger 100 has four water pipe inlets and outlets: a heat exchange liquid inlet pipe 121, a heat exchange liquid outlet pipe 122, a cooling water inlet pipe 111, and a cooling water outlet pipe 112. Temperature and pressure sensors are installed on the cooling water outlet pipe 112 and the heat exchange liquid inlet pipe 121, respectively, to achieve dynamic monitoring of water pressure and temperature. The temperature sensor has a measurement range of 0–60℃ / 0–100℃, a measurement accuracy of 0.15℃, a resolution of 0.01℃, a protection rating of IP54 or higher, and an output signal of PT100 or 4-20mA, with direct display functionality. The pressure sensor has a measurement range of 0–1.6MPa, an output signal of 4-20mA, and local display functionality.

[0074] like Figure 3 As shown, the water quality improvement circulation and cooling circulation systems merge and exchange at water tank 200, achieving the purpose of continuous water quality improvement and circulating cooling. Water tank 200 is also equipped with a resistivity sensor to monitor the circulating water quality. Water tank 200 has three inlets and two outlets, namely, water tank 200 water supply inlet, circulating water return inlet, side filter return inlet, circulating water outlet, and side filter outlet. Water in water tank 200 enters heat exchanger 100 for cooling via a circulating water pump, and is then supplied from the cooling water output pipe 112 of heat exchanger 100 to the water-cooled protection equipment of the heavy ion high-pressure platform.

[0075] Furthermore, the circulating water pump employs automated constant pressure control to ensure a constant water pressure for the cooling circulating water of the heavy ion high-pressure platform. Due to the relatively small and stable circulating water volume, and considering various safety factors, manual water replenishment (through the water inlet of water tank 200) is adopted. Water tank 200 is equipped with a liquid level sensor and a water resistance sensor. The liquid level sensor has a measurement range of 0–3 m and an output signal of 4–20 mA. The water resistance sensor has a measurement range of 0–25 MΩ·cm, an output signal of 4–20 mA, and a local display function.

[0076] like Figure 6As shown, the automated constant pressure control system 400 of this utility model consists of one water pump, one PLC, and a frequency converter control cabinet. The frequency converter control cabinet comprises a programmable logic controller (PLC), a human-machine interface, and a low-voltage electrical system. The core technology is frequency converter constant pressure control technology. The control system adopts a microcomputer combined with PID closed-loop control technology. The frequency converter receives the real-time measured circulating water pressure and then dynamically adjusts the difference between the real-time target water pressure and the real-time water pressure to maintain the pipeline pressure at the set pressure, thereby achieving the purpose of constant pressure control.

[0077] The specific control principle of the control system is as follows: Pressure transmitters are installed in the main water pipeline network. These transmitters monitor the real-time pressure of the network and transmit it as a 4-20mA current signal to the analog input module of the PLC control cabinet. Operators set the required pressure value through the PLC control cabinet's human-machine interface. The PLC's internal digital PID controller performs PID calculations based on the pressure setpoint and actual detected value. The internal control module also controls the start and stop of water pumps and sends signals to directly control the inverter's speed to stabilize the network pressure. When water consumption is so high that even full-speed operation of the inverter cannot guarantee stable network pressure, the controller detects both the lower pressure limit signal and the high-speed operation signal of the inverter simultaneously. The controller automatically activates the next unused pump to ensure pressure continuity. When water consumption decreases, the inverter is initially operating at its lowest speed. If the pressure is still too high, the controller will delay before shutting down the most recently activated pump. The controller performs PID calculations based on the pressure setpoint and actual detected value from the pressure sensor and sends control signals to control the inverter's speed, ensuring constant network pressure. This cyclical operation ensures constant pipeline pressure, guaranteeing the reliability and lifespan of the pumps and pipelines while saving energy. It achieves unattended operation and automatic control, thus realizing energy conservation and consumption reduction.

[0078] The operating status of field equipment is transmitted to the digital input module of the field control cabinet via dry contacts for monitoring and control by the host computer. Analog signals from field instruments are transmitted to the PLC in 4-20mA or 0-10V signal mode for host computer monitoring. The speed and current signals of the motors controlled by the frequency converter are transmitted to the PLC via communication for host computer monitoring. The automatic operating frequency of the frequency converter is transmitted from the PLC cabinet to the frequency converter in 4-20mA signal mode, controlling the output frequency of the frequency converter to achieve adjustable equipment speed. Start and stop signals of the field equipment are also transmitted from the PLC cabinet to the power distribution cabinet via dry contacts to control the start and stop of the equipment.

[0079] The programmable logic controller (PLC, including CPU, digital and analog input / output modules, etc.) is a Siemens SIMATIC S7-200 SMART series product. The human-machine interface (HMI) is a Siemens SMART1000 series product. Based on real-time pressure at the site, the system controls the start and stop of five frequency converter control cabinets. The operating status of the frequency converter cabinets is read through communication with the frequency converter rail. Users can set and read system operating parameters, and the system displays equipment operation and fault information.

[0080] The control system of this utility model has the following advantages: 1) The control system is safe and reliable. The control cabinet uses a PLC controller, which reduces the complexity of low-voltage electrical appliances and low-voltage lines in the control cabinet, reduces circuit failure points, and makes the system operation more reliable and stable. 2) The control system displays the real-time operating status, and operators can intuitively observe the system's operating status through the human-machine interface. 3) The control system is scalable. The control cabinet can transmit and control information with the upper system and the frequency converter control cabinet through its communication interface. 4) The control cabinet is designed with a timed rotation function. The timer is adjustable, and the two water pumps rotate on a timed basis, solving the problems of aging and efficiency degradation of water pumps during long-term operation and rust and corrosion during long-term inactivity.

[0081] The control cabinet mainly consists of a frequency converter, circuit breaker, high-speed fuse, power-on contactor, and control and feedback interfaces. The frequency converter is an ABB ACS510 series product, and the low-voltage electrical components are Schneider Electric products. The control methods are as follows: local / remote control mode switching. Users can switch the water pump control mode via the local / remote switch on the control cabinet panel. Local control mode allows the system to start and stop the system or water pump locally, and set parameters. Remote control is controlled by the host operating system. Operating modes: manual and automatic control modes with manual switching. Users can switch the water pump control mode via the manual / automatic switch on the control cabinet panel. In manual control mode, the user manually adjusts the system speed to control the system pressure. In automatic control mode, the system intelligently determines the start / stop and speed of the water pump based on the user-set pressure and the real-time pressure of the pipeline network.

[0082] The above-mentioned control cabinet offers the following advantages: Reliable operation: Soft starting of the pump is achieved through a frequency converter or soft starter, preventing pipeline impact and avoiding excessive pipeline pressure and pipe rupture. Energy saving: Optimized energy-saving control software enables the water pump to operate at maximum energy efficiency. Flexible control: Manual selection of operating modes, remote, local, manual, and automatic modes are freely selectable. Unattended operation: Intelligent control enables fully automatic operation, allowing for unattended operation of the pump room. Precise and efficient: PID control achieves constant pressure operation of the water pump, effectively ensuring the pressure output accuracy within ±0.02MPa. Reasonable parameter configuration allows the water pump to operate in its high-efficiency range. Comprehensive protection: Equipped with protection against water shortage, motor overload, phase loss, undervoltage, overcurrent, overload, and overtemperature in the control cabinet, effectively protecting equipment and personnel safety.

[0083] This invention isolates the water system of the high-pressure platform, which requires high water resistance, and develops a water system solely for this part. The total circulating water volume is controlled within 2 tons. The water quality enhancement system 300 circulates, purifies, and deionizes the water within this system, increasing water resistance to achieve the water quality required for platform operation. Variable frequency constant pressure control technology is employed, utilizing a programmable logic controller (PLC) combined with a water pressure sensor, and employing PID dynamic closed-loop regulation to control the frequency converter to achieve constant water pressure. A low-cost, high-reliability heat exchanger 100 is used for cooling, transferring heat from the high-pressure platform circulating water system to the heavy ion accelerator cooling water system, thereby reducing the system water temperature. This solution saves costs and ensures reliable operation of the high-pressure platform.

[0084] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

[0085] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A heat exchanger for a water quality improvement device, characterized in that, include: The housing (110) is made of a thermally conductive material, and the interior of the housing (110) is configured as a closed cavity for containing cooling water; A cooling water inlet pipe (111) is provided at the lower end of the housing (110); A cooling water outlet pipe (112) is provided at the upper end of the housing (110); The heat-conducting structure (120) has a heat exchange liquid inlet pipe (121), a heat exchange liquid outlet pipe (122) and a heat-conducting part (123) installed on the housing (110) for conveying heat exchange liquid; The heat-conducting part (123) includes a heat-conducting pipe (123a) that is bent and extended, and a plurality of the heat-conducting pipes (123a) are distributed in the cavity of the housing (110).

2. The heat exchanger for a water quality improvement device according to claim 1, characterized in that, The heat-conducting part (123) also includes a heat-conducting layer (123b) that is attached to the outer side of the housing (110). The heat-conducting layer (123b) is connected to the heat exchange liquid inlet pipe (121) at one end and to the heat exchange liquid outlet pipe (122) at the other end; the heat-conducting layer (123b) completely covers the outer surface of the shell (110).

3. The heat exchanger for a water quality improvement device according to claim 2, characterized in that, The heat exchange liquid inlet pipe (121) is installed on the left side of the housing (110) and close to the cooling water outlet pipe (112). The heat exchange liquid output pipe (122) is installed on the right side of the housing (110) and close to the cooling water input pipe (111).

4. The heat exchanger for a water quality improvement device according to claim 3, characterized in that, The heat exchange liquid inlet pipe (121) is provided with a first secondary pipe (121a) extending from the top of the housing (110) to the bottom of the housing (110) inside the housing (110), and the heat exchange liquid outlet pipe (122) is provided with a second secondary pipe (122a) extending from the bottom of the housing (110) to the top of the housing (110) inside the housing (110). The heat pipe (123a) is connected between the first sub-pipe (121a) and the second sub-pipe (122a).

5. The heat exchanger for a water quality improvement device according to any one of claims 1-4, characterized in that, The heat pipe (123a) extends in a wavy manner in the horizontal direction, and several heat pipes (123a) are arranged at intervals.

6. The heat exchanger for a water quality improvement device according to claim 5, characterized in that, From the bottom to the top of the housing (110), the spacing between adjacent heat pipes (123a) gradually decreases.

7. The heat exchanger for a water quality improvement device according to claim 1, characterized in that, The heat-conducting part (123) also includes an air supply mechanism (123c), which is disposed outside the housing (110) and is used to accelerate the airflow outside the housing (110).

8. A water quality improvement device, comprising a water tank (200), a water quality improvement system (300), and an automated constant pressure control system (400), characterized in that, It also includes the heat exchanger as described in any one of claims 1-7; The water tank (200), the automated constant pressure control system (400), and the heat exchanger are connected in series to reduce the temperature of the water. The water quality improvement system (300) is separately connected to the water tank (200) and is used to improve water quality.

9. The water quality improvement device according to claim 8, characterized in that, The water quality improvement system (300) includes a primary filter, a secondary filter, and a tertiary filter connected in series. The primary filter is connected to the side filter outlet of the water tank (200), and the tertiary filter is connected to the side filter inlet of the water tank (200).

10. The water quality improvement device according to claim 9, characterized in that, The automated constant pressure control system (400) includes a PLC, a human-machine interface, and a low-voltage electrical system.

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