A heat exchange station automatic humidity control method and device

Abstract

The present application relates to a kind of heat exchange station automatic humidity control method and equipment, equipment includes dehumidifier, plate heat exchanger, regenerator, water tank and detection module, dehumidifier is equipped with spray head, corrugated packing and solution collection area with regenerator, the pipeline one of liquid transfer between them, the pipeline two of liquid transfer and overflow prevention pipe, plate heat exchanger is connected with once network hot water circuit, the branch pipe of pipeline two of liquid transfer is worn water tank, dehumidifier inlet side is equipped with low-temperature water condenser with water tank communication, pipeline one of liquid transfer is connected with gas-liquid condenser of waste heat recovery, detection module includes multiple sensors and flowmeter;Control method is detected by sensor detection data, according to humidity, water temperature threshold and dehumidification capacity graded start condensing, dehumidification, regeneration module, realize the cyclic dehumidification and regeneration of lithium chloride aqueous solution.The present application uses once network hot water and tap water as cold and hot source in heat exchange station, realizes humidity automation accurate control, dehumidification efficiency is high, operating cost is low, effectively solve the problem of underground heat exchange station damp.

Description

Technical Field

[0001] This invention relates to the field of dehumidification technology for heat exchange stations, specifically to an automatic humidity control method and equipment for heat exchange stations. Background Technology

[0002] Currently, most heat exchange stations reduce humidity through natural ventilation using exhaust fans, but this is ineffective. For many underground stations, ventilation alone cannot solve the problem of internal dampness. Literature review and field surveys have revealed that substandard humidity levels are very common in heat exchange stations. This can easily lead to electrical equipment malfunctions, resulting in lost remote signals, pump shutdowns, and other issues. This not only affects the normal operation of the heating system but also wastes human and material resources and can cause significant economic losses due to equipment damage. Furthermore, operating electrical equipment in a damp environment poses serious safety hazards. Summary of the Invention

[0003] The purpose of this invention is to overcome the above-mentioned technical problems and provide an automatic humidity control method and equipment for heat exchange stations.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: an automatic humidity control device for a heat exchange station, which is used for dehumidifying the air in the heat exchange station, and includes a dehumidifier, a plate heat exchanger, a regenerator, a water tank and a detection module;

[0005] The dehumidifier is equipped with multiple spray heads at the top, corrugated packing in the middle, and a solution collection area at the bottom. The spray heads are used to spray lithium chloride aqueous solution, which flows through the corrugated packing. The inlet and outlet of the dehumidifier are located on opposite side walls. A fan is provided at the outlet end to guide the air in the heat exchange station through the corrugated packing and make full contact with the lithium chloride aqueous solution. The regenerator has the same structure as the dehumidifier, and its outlet end is equipped with a second fan to guide air through the corrugated packing inside the regenerator to carry out the moisture in the high-temperature lithium chloride aqueous solution. A first liquid delivery pipe and a second liquid delivery pipe are respectively provided between the dehumidifier outlet and the top spray head inlet of the regenerator, and between the regenerator outlet and the dehumidifier spray head inlet. The plate heat exchanger is connected to the first liquid delivery pipe and is connected to the primary network hot water circuit to provide a heat source for the plate heat exchanger. A first solution pump is provided on the first liquid delivery pipe to introduce the water-saturated lithium chloride aqueous solution into the plate heat exchanger for heating and then into the regenerator to achieve regeneration. A second liquid delivery pipe is provided with a water distributor and a water collector, and multiple branch pipes are connected between the water distributor and the water collector. The branch pipes pass through the water tank. A second solution pump is provided on the second liquid delivery pipe to introduce the dehydrated lithium chloride aqueous solution into the water tank for cooling and then into the dehumidifier for dehumidification. An overflow prevention pipe is connected between the dehumidifier and the regenerator, with both ends of the overflow prevention pipe connected to the highest liquid level in the solution collection area of ​​the dehumidifier and the regenerator, respectively. The detection module includes a temperature and humidity sensor one and a temperature and humidity sensor two. The temperature and humidity sensor one is installed in the heat exchange station, and the temperature and humidity sensor two is installed on the outlet side of the fan one.

[0006] Furthermore, a low-temperature water condenser is also provided on the inlet side of the dehumidifier. The two ends of the low-temperature water condenser are connected to the water tank through pipes. A water pump is provided at the inlet end of the low-temperature water condenser to introduce tap water from the water tank into the low-temperature water condenser. The humid air in the heat exchange station first passes through the low-temperature water condenser for condensation and dehumidification, and then enters the dehumidifier. The detection module also includes a temperature sensor, which is installed in the water tank to detect the water temperature in the water tank.

[0007] Furthermore, a heat exchange coil is provided on the inlet side of the regenerator. The heat exchange coil is connected to the primary hot water circuit and is connected before the plate heat exchanger.

[0008] Furthermore, a gas-liquid condenser is connected to the first liquid delivery pipeline for waste heat recovery. The gas-liquid condenser is located between the dehumidifier and the plate heat exchanger. The second fan is connected to the gas-liquid condenser through a gas delivery pipeline to introduce the hot and humid air discharged from the regenerator into the gas-liquid condenser.

[0009] Furthermore, both the dehumidifier and the regenerator are equipped with filters at their inlets and baffles at their outlets.

[0010] Furthermore, the detection module also includes temperature sensor 2, temperature sensor 3, temperature sensor 4, temperature sensor 5, and flow meter 1 and flow meter 2. Temperature sensor 2, temperature sensor 3, temperature sensor 4, and temperature sensor 5 are respectively installed on the inlet side of solution pump 1 and the outlet side of plate heat exchanger on the first delivery pipe, and on the inlet side of solution pump 2 and the outlet side of water collector on the second delivery pipe. Flow meter 1 and flow meter 2 are respectively installed on the outlet side of solution pump 1 and solution pump 2 on the first delivery pipe and the second delivery pipe.

[0011] An automatic humidity control method for a heat exchange station, characterized by the following steps: Step 1: The temperature and humidity sensor detects the air humidity inside the heat exchange station. When the air humidity is >70%, the system starts working. Step 2: Temperature sensor 1 determines the water temperature in the water tank. When the water temperature is <10℃, the water pump is started to pump the low-temperature tap water in the water tank into the low-temperature water condenser. The low-temperature water condenser condenses and dehumidifies the air. Otherwise, the water pump will not work. Step 3: Temperature and humidity sensor 2 detects the air humidity at the dehumidifier outlet. When the air humidity is >60%, solution pump 2 starts and pumps the lithium chloride aqueous solution in the regenerator solution collection area into the dehumidifier. The top spray head of the dehumidifier sprays out the lithium chloride aqueous solution, so that the lithium chloride aqueous solution is evenly distributed on the corrugated packing. Fan 1 guides the air in the heat exchange station through the corrugated packing in the dehumidifier, so that the air and lithium chloride aqueous solution are fully in contact, and the moisture in the air is absorbed and discharged. Step 4: Determine the dehumidification capacity using data from temperature and humidity sensor 1 and temperature and humidity sensor 2. If the dehumidification capacity is <5g / kg, start solution pump 1 and fan 2. The regenerator will then operate. Solution pump 1 pumps the lithium chloride aqueous solution in the dehumidifier's solution collection area into the plate heat exchanger, allowing it to absorb the temperature of the primary network hot water, thus separating the lithium chloride aqueous solution from the water. The solution then enters the regenerator, where a high-temperature lithium chloride aqueous solution is sprayed out through the top spray nozzles, ensuring even distribution on the corrugated packing. Fan 2 guides external air through the corrugated packing, ensuring full contact with the high-temperature lithium chloride aqueous solution to remove moisture. The hot and humid air discharged from the regenerator by fan 2 is then introduced into the gas-liquid condenser for waste heat recovery. Step 5: When the temperature and humidity sensor 2 detects humidity <30%, the system stops working.

[0012] Furthermore, in step three, when the lithium chloride aqueous solution level in the solution collection area of ​​the dehumidifier reaches the highest level, the lithium chloride aqueous solution flows into the solution collection area of ​​the regenerator through the overflow prevention pipe. The solution pump works in conjunction with the overflow prevention pipe to circulate the lithium chloride aqueous solution in the regenerator dehumidifier.

[0013] Furthermore, in step four, the lithium chloride aqueous solution first enters the gas-liquid condenser for the first step of heating before entering the plate heat exchanger.

[0014] Furthermore, the temperature of the lithium chloride aqueous solution in the dehumidifier is 10-30℃, the concentration is 25%-42%, and the air flow rate to solution flow rate ratio in the dehumidifier is 6500:9.

[0015] The beneficial effects of this invention are as follows: This invention innovatively uses lithium chloride aqueous solution for air dehumidification in heat exchange stations. It utilizes the strong water absorption of lithium chloride aqueous solution for deep adsorption and dehumidification, and in conjunction with a regenerator, it realizes the recycling and reuse of the solution, which greatly improves the dehumidification efficiency compared with traditional natural ventilation methods. At the same time, through multi-dimensional detection by temperature and humidity sensors, temperature sensors and flow meters, combined with humidity thresholds, the start and stop of each component are precisely controlled to achieve fine control of humidity in the heat exchange station, solving the problem of long-term unacceptable humidity in poorly ventilated underground heat exchange stations. The equipment uses primary network hot water to heat and regenerate the water-saturated lithium chloride aqueous solution, and uses tap water from the water tank in the heat exchange station to cool the high-temperature lithium chloride aqueous solution. It can also use the tap water in the water tank to perform preliminary condensation and dehumidification of the air, making full use of the existing resources in the heat exchange station without consuming additional electricity, reducing energy consumption and carbon emissions, and lowering the operating energy cost of the dehumidification system. The gas-liquid condenser can recover waste heat from the hot and humid air discharged from the regenerator, further improving energy utilization. By precisely controlling the temperature, concentration, and flow rate of the lithium chloride aqueous solution, the best dehumidification effect is ensured, the risk of solution crystallization is avoided, and the energy consumption for solution regeneration is reduced. Attached Figure Description

[0016] Figure 1 This is a system structure diagram of an automatic humidity control device for a heat exchange station according to the present invention; Figure 2 This is a reference graph showing the effect of solution inlet temperature on air outlet parameters; Figure 3 This is a reference graph showing the effect of solution inlet concentration on air outlet parameters; Figure 4 This is a reference graph showing the effect of solution flow rate on air outlet parameters. Detailed Implementation

[0017] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention are within the scope of protection of the present invention.

[0018] This invention discloses an automatic humidity control method and equipment for heat exchange stations, which innovatively applies lithium chloride aqueous solution dehumidification technology to the field of air dehumidification in heat exchange stations. By using the heat exchange station's own primary network hot water and tap water tank as cold and heat sources, the lithium chloride aqueous solution is regenerated and cooled, reducing the operating energy consumption and cost of the dehumidification system. Through this equipment and control method, the humidity of the heat exchange station can be automatically and precisely controlled, effectively solving the humidity problem in poorly ventilated scenarios such as underground heat exchange stations, and ensuring the safe and stable operation of electrical equipment in the station.

[0019] I. Equipment Structure: Example 1: As Figure 1 As shown, An automatic humidity control device for a heat exchange station includes a dehumidifier, a plate heat exchanger, a regenerator, a water tank, and a detection module; The dehumidifier and regenerator have the same structure, with multiple spray heads at the top, corrugated packing in the middle, and a solution collection area at the bottom. The corrugated packing is a structured corrugated packing with a specific surface area of ​​600 m² / m³. The lithium chloride aqueous solution in the corrugated packing and the air flow adopt a cross-flow pattern. The inlet and outlet of the dehumidifier and regenerator are located on opposite side walls. The dehumidifier outlet is equipped with a fan to guide the air in the heat exchange station through the corrugated packing inside the dehumidifier and make full contact with the lithium chloride aqueous solution. The regenerator outlet is equipped with a fan to guide the air through the corrugated packing inside the regenerator and carry out the moisture in the high-temperature lithium chloride aqueous solution. A first liquid delivery pipe and a second liquid delivery pipe are respectively provided between the dehumidifier outlet and the top spray head inlet of the regenerator, and between the regenerator outlet and the dehumidifier spray head inlet. The plate heat exchanger is connected to the first liquid delivery pipe and is connected to the primary network hot water circuit to provide a heat source for the plate heat exchanger. A first solution pump is provided on the first liquid delivery pipe to introduce the water-saturated lithium chloride aqueous solution into the plate heat exchanger for heating and then into the regenerator to achieve regeneration. A second liquid delivery pipe is provided with a water distributor and a water collector, and multiple branch pipes are connected between the water distributor and the water collector. The branch pipes pass through the water tank. A second solution pump is provided on the second liquid delivery pipe to introduce the dehydrated lithium chloride aqueous solution into the water tank for cooling and then into the dehumidifier for dehumidification. An overflow prevention pipe is connected between the dehumidifier and the regenerator, with both ends of the overflow prevention pipe connected to the highest liquid level in the solution collection area of ​​the dehumidifier and the regenerator, respectively. The detection module includes a temperature and humidity sensor 1 and a temperature and humidity sensor 2. The temperature and humidity sensor 1 is installed in the heat exchange station to detect the air humidity inside the station, and the temperature and humidity sensor 2 is installed on the outlet side of the fan 1 to detect the air humidity after dehumidification.

[0020] The dehumidifier inlet side is also equipped with a low-temperature water condenser. The two ends of the low-temperature water condenser are connected to the water tank through pipes. The inlet end of the low-temperature water condenser is equipped with a water pump, which is used to introduce tap water from the water tank into the low-temperature water condenser. The humid air in the heat exchange station first passes through the low-temperature water condenser for condensation and dehumidification, and then enters the dehumidifier. The detection module also includes a temperature sensor, which is installed in the water tank to detect the water temperature in the water tank.

[0021] Example 2, based on Example 1, since the temperature of the primary network hot water is usually 80-90℃, while the temperature required for the regeneration of lithium chloride aqueous solution is 60℃, a heat exchange coil is installed on the inlet side of the regenerator. The heat exchange coil is connected to the primary network hot water circuit and is connected before the plate heat exchanger. The air is preheated by the heat exchange coil before entering the regenerator. This can make full use of the energy of the primary network hot water and avoid cold air directly entering the regenerator, which would lower the temperature of the lithium chloride aqueous solution and further lead to incomplete regeneration of the lithium chloride aqueous solution.

[0022] Example 3: Based on Example 1 or 2, in order to make full use of the waste heat in the gas discharged from the regenerator, a gas-liquid condenser is also connected to the first liquid delivery pipeline. The gas-liquid condenser is set between the dehumidifier and the plate heat exchanger. The second fan is connected to the gas-liquid condenser through a gas delivery pipeline, so that the hot and humid air discharged from the regenerator is introduced into the gas-liquid condenser to preheat the water-saturated lithium chloride aqueous solution before entering the plate heat exchanger for heat exchange.

[0023] Example 4, based on Example 1, includes filters at the inlet of both the dehumidifier and the regenerator, and baffles at their outlets. The baffles at the outlets of the dehumidifier and regenerator effectively prevent solution from overflowing with the hot, humid air, reducing solution loss.

[0024] The detection module also includes temperature sensor 2, temperature sensor 3, temperature sensor 4, temperature sensor 5, and flow meter 1 and flow meter 2. Temperature sensor 2, temperature sensor 3, temperature sensor 4, and temperature sensor 5 are respectively installed on the inlet side of solution pump 1 and the outlet side of plate heat exchanger on the first delivery pipe, and on the inlet side of solution pump 2 and the outlet side of water collector on the second delivery pipe. Flow meter 1 and flow meter 2 are respectively installed on the outlet side of solution pump 1 and solution pump 2 on the first delivery pipe and the second delivery pipe.

[0025] A Y-type filter is also connected to the lithium chloride aqueous solution outlet of the regenerator and dehumidifier. The Y-type filter and filter screen can effectively filter impurities in the medium, prevent clogging of pipelines, spray heads, and corrugated packing, and ensure long-term stable operation of the system.

[0026] The primary hot water pipeline is equipped with an electric regulating valve, which can automatically adjust the temperature and flow rate of hot water based on the detection data of the temperature sensor to ensure the heating requirements for the regeneration of lithium chloride aqueous solution.

[0027] The water tank is also equipped with a float valve to control the water level.

[0028] The equipment also includes a control module, which is used to control the start and stop of components such as water pumps, solution pump one, solution pump two, fan one, fan two, and ball valves based on sensor data. The control module uses a PLC or a microcontroller.

[0029] The working principle of the above equipment is as follows: the strong water absorption of lithium chloride aqueous solution is used to adsorb and dehumidify the hot and humid air in the heat exchange station. After the lithium chloride aqueous solution is saturated with moisture, it is regenerated by heating with hot water from the primary network (draining the water and restoring the water absorption). The regenerated lithium chloride aqueous solution is cooled by the water tank and then re-enters the dehumidification module for recycling. At the same time, combined with the low-temperature water condensation dehumidification of the condensation module, a dual dehumidification effect of "condensation first, adsorption later" is achieved. With the real-time monitoring of the detection module and the intelligent regulation of the control module, the system can start and stop automatically and adjust the operating parameters.

[0030] II. Control Methods An automatic humidity control method for a heat exchange station, characterized by the following steps: Step 1: The temperature and humidity sensor detects the air humidity inside the heat exchange station. When the air humidity is >70%, the system starts working. Step 2: Temperature sensor 1 determines the water temperature in the water tank. When the water temperature is <10℃, the water pump is started to pump the low-temperature tap water in the water tank into the low-temperature water condenser. The air is dehumidified by the low-temperature water condenser. Otherwise, the water pump will not work, the low-temperature water condenser will not work, and the humid air will directly enter the dehumidifier. Step 3: Temperature and humidity sensor 2 detects the air humidity at the dehumidifier outlet. When the air humidity is >60%, solution pump 2 starts, pumping the lithium chloride aqueous solution in the regenerator solution collection area into the dehumidifier. The top spray head of the dehumidifier sprays out the lithium chloride aqueous solution, making the lithium chloride aqueous solution evenly distributed on the corrugated packing. Fan 1 guides the air in the heat exchange station through the corrugated packing in the dehumidifier, allowing the air to fully contact the lithium chloride aqueous solution, absorbing the moisture in the air and discharging it into the heat exchange station. When the lithium chloride aqueous solution level in the dehumidifier's solution collection area reaches the maximum level, the lithium chloride aqueous solution flows into the regenerator's solution collection area through the overflow prevention pipe. Through the cooperation of the solution pump and the overflow prevention pipe, the lithium chloride aqueous solution circulates in the regenerator dehumidifier. Step 4: Determine the dehumidification capacity using data from temperature and humidity sensors 1 and 2. If the actual dehumidification capacity is <5g / kg (less than 5g of water is removed from 1kg of air, indicating that the lithium chloride solution is close to or saturated with moisture, resulting in decreased dehumidification efficiency and the need for regeneration), then start solution pump 1 and fan 2. The regenerator will then operate. Solution pump 1 pumps the lithium chloride solution in the dehumidifier's solution collection area into the plate heat exchanger, allowing it to absorb the temperature of the primary network hot water, thus separating the lithium chloride solution from the water. The solution then enters the regenerator, where a high-temperature lithium chloride solution is sprayed out through the top spray nozzle, ensuring even distribution on the corrugated packing. Fan 2 guides external air through the corrugated packing, ensuring full contact with the high-temperature lithium chloride solution and removing moisture. The hot, humid air discharged from the regenerator by fan 2 is introduced into the gas-liquid condenser for waste heat recovery. The lithium chloride solution is preheated in the gas-liquid condenser before entering the plate heat exchanger, achieving the first step of temperature increase and ensuring full utilization of heat.

[0031] Step 5: When the temperature and humidity sensor 2 detects humidity <30%, the system stops working.

[0032] III. Core Parameter Settings: (The air temperature inside the heat exchange station is generally between 10-25℃.) Experiments have shown that during operation, the temperature of the lithium chloride aqueous solution in the dehumidifier should be between 10-30℃; the lower the temperature, the better the dehumidification effect (see the experimental results on the effect of the inlet temperature of the lithium chloride aqueous solution on the dehumidification performance of the dehumidifier). Figure 2 If the temperature is below 10℃, the solution is at risk of crystallization, which can easily cause pipeline blockage and increase system maintenance costs. The following is a table of experimental parameters showing the effect of the inlet temperature of the lithium chloride aqueous solution on the dehumidification performance of the dehumidifier:

[0033] Experiments have shown that during operation, the concentration of lithium chloride aqueous solution in the dehumidifier should be between 25% and 43%. Higher concentrations result in better dehumidification (see experimental results on the effect of lithium chloride aqueous solution concentration on dehumidifier performance). Figure 3 (If the concentration exceeds 43%, there is a risk of solution crystallization, and the energy consumption for solution regeneration increases, which does not meet the requirements for safe and economical operation.) The following is a table of experimental parameters showing the effect of lithium chloride aqueous solution concentration on the dehumidification performance of a dehumidifier:

[0034] Experiments have shown that the dehumidification effect is optimal when the air flow rate to solution flow rate ratio in the dehumidifier is 6500:9 (see experiment on the effect of lithium chloride aqueous solution flow rate on dehumidifier performance). Figure 4At this point, the liquid-to-gas ratio (mass ratio) is 1.48, which is within the common engineering ratio range. This allows for sufficient contact between the air and the lithium chloride aqueous solution, maximizing the adsorption and dehumidification efficiency. The following is a table of experimental parameters showing the effect of lithium chloride aqueous solution flow rate on the dehumidification performance of the dehumidifier:

[0035] During system operation, the flow meter monitors the solution flow rate and water circulation flow rate in real time, and automatically adjusts the operating power of solution pump one, solution pump two, and water pump based on the flow data to ensure that the air flow rate and solution flow rate are maintained at the optimal ratio of 6500:9, thus ensuring dehumidification efficiency.

[0036] IV. Implementation Results The automatic humidity control method and equipment for heat exchange stations of this invention have been verified through actual engineering applications. By using this equipment and control method, the humidity inside the heat exchange station can be stably controlled below 30%, avoiding problems such as electrical equipment failure, remote signal loss, and water pump shutdown caused by humid environments, and significantly reducing equipment failure rate and operation and maintenance costs. At the same time, the system uses the heat exchange station's own primary network hot water and tap water tank as cold and heat sources, replacing the traditional electric heating and heat pump drive methods, without consuming additional electricity, and reducing operating costs by more than 55% compared to traditional heating methods. Moreover, the entire system achieves fully automatic operation without human intervention, greatly reducing the investment of manpower and material resources, and improving the intelligent operation level of the heat exchange station.

Claims

1. An automatic humidity control device for a heat exchange station, characterized in that: This equipment is used for air dehumidification in heat exchange stations and includes a dehumidifier, plate heat exchanger, regenerator, water tank, and detection module. The dehumidifier is equipped with multiple spray heads at the top, corrugated packing in the middle, and a solution collection area at the bottom. The spray heads are used to spray lithium chloride aqueous solution, which flows through the corrugated packing. The inlet and outlet of the dehumidifier are located on opposite side walls. A fan is provided at the outlet end to guide the air in the heat exchange station through the corrugated packing and make full contact with the lithium chloride aqueous solution. The regenerator has the same structure as the dehumidifier, and its outlet end is equipped with a second fan to guide air through the corrugated packing inside the regenerator to carry out the moisture in the high-temperature lithium chloride aqueous solution. A first liquid delivery pipe and a second liquid delivery pipe are respectively provided between the dehumidifier outlet and the top spray head inlet of the regenerator, and between the regenerator outlet and the dehumidifier spray head inlet. The plate heat exchanger is connected to the first liquid delivery pipe and is connected to the primary network hot water circuit to provide a heat source for the plate heat exchanger. A first solution pump is provided on the first liquid delivery pipe to introduce the water-saturated lithium chloride aqueous solution into the plate heat exchanger for heating and then into the regenerator to achieve regeneration. A second liquid delivery pipe is provided with a water distributor and a water collector, and multiple branch pipes are connected between the water distributor and the water collector. The branch pipes pass through the water tank. A second solution pump is provided on the second liquid delivery pipe to introduce the dehydrated lithium chloride aqueous solution into the water tank for cooling and then into the dehumidifier for dehumidification. An overflow prevention pipe is connected between the dehumidifier and the regenerator, with both ends of the overflow prevention pipe connected to the highest liquid level in the solution collection area of ​​the dehumidifier and the regenerator, respectively. The detection module includes a temperature and humidity sensor one and a temperature and humidity sensor two. The temperature and humidity sensor one is installed in the heat exchange station, and the temperature and humidity sensor two is installed on the outlet side of the fan one.

2. The automatic humidity control device for a heat exchange station according to claim 1, characterized in that: The dehumidifier inlet side is also equipped with a low-temperature water condenser. The two ends of the low-temperature water condenser are connected to the water tank through pipes. The inlet end of the low-temperature water condenser is equipped with a water pump, which is used to introduce tap water from the water tank into the low-temperature water condenser. The humid air in the heat exchange station first passes through the low-temperature water condenser for condensation and dehumidification, and then enters the dehumidifier. The detection module also includes a temperature sensor, which is installed in the water tank to detect the water temperature in the water tank.

3. The automatic humidity control method and equipment for a heat exchange station according to claim 2, characterized in that: The regenerator inlet side is equipped with a heat exchange coil, which is connected to the primary hot water circuit and is connected before the plate heat exchanger.

4. The automatic humidity control method and equipment for a heat exchange station according to claim 2 or 3, characterized in that: A gas-liquid condenser is also connected to the first liquid delivery pipeline for waste heat recovery. The gas-liquid condenser is located between the dehumidifier and the plate heat exchanger. The second fan is connected to the gas-liquid condenser through a gas delivery pipeline to introduce the hot and humid air discharged from the regenerator into the gas-liquid condenser.

5. The automatic humidity control method and equipment for a heat exchange station according to claim 1, characterized in that: Both the dehumidifier and the regenerator are equipped with filters at their inlets and baffles at their outlets.

6. The automatic humidity control method and equipment for a heat exchange station according to claim 1, characterized in that: The detection module also includes temperature sensor 2, temperature sensor 3, temperature sensor 4, temperature sensor 5, and flow meter 1 and flow meter 2. Temperature sensor 2, temperature sensor 3, temperature sensor 4, and temperature sensor 5 are respectively installed on the inlet side of solution pump 1 and the outlet side of plate heat exchanger on the first delivery pipe, and on the inlet side of solution pump 2 and the outlet side of water collector on the second delivery pipe. Flow meter 1 and flow meter 2 are respectively installed on the outlet side of solution pump 1 and solution pump 2 on the first delivery pipe and the second delivery pipe.

7. An automatic humidity control method for a heat exchange station, characterized in that: Specifically, the following steps are included: Step 1: The temperature and humidity sensor detects the air humidity inside the heat exchange station. When the air humidity is >70%, the system starts working. Step 2: Temperature sensor 1 determines the water temperature in the water tank. When the water temperature is <10℃, the water pump is started to pump the low-temperature tap water in the water tank into the low-temperature water condenser. The low-temperature water condenser condenses and dehumidifies the air. Otherwise, the water pump will not work. Step 3: Temperature and humidity sensor 2 detects the air humidity at the dehumidifier outlet. When the air humidity is >60%, solution pump 2 starts and pumps the lithium chloride aqueous solution in the regenerator solution collection area into the dehumidifier. The top spray head of the dehumidifier sprays out the lithium chloride aqueous solution, so that the lithium chloride aqueous solution is evenly distributed on the corrugated packing. Fan 1 guides the air in the heat exchange station through the corrugated packing in the dehumidifier, so that the air and lithium chloride aqueous solution are fully in contact, and the moisture in the air is absorbed and discharged. Step 4: Determine the dehumidification capacity using data from temperature and humidity sensor 1 and temperature and humidity sensor 2. If the dehumidification capacity is <5g / kg, start solution pump 1 and fan 2. The regenerator will then operate. Solution pump 1 pumps the lithium chloride aqueous solution in the dehumidifier's solution collection area into the plate heat exchanger, allowing it to absorb the temperature of the primary network hot water, thus separating the lithium chloride aqueous solution from the water. The solution then enters the regenerator, where a high-temperature lithium chloride aqueous solution is sprayed out through the top spray nozzles, ensuring even distribution on the corrugated packing. Fan 2 guides external air through the corrugated packing, ensuring full contact with the high-temperature lithium chloride aqueous solution to remove moisture. The hot and humid air discharged from the regenerator by fan 2 is then introduced into the gas-liquid condenser for waste heat recovery. Step 5: When the temperature and humidity sensor 2 detects humidity <30%, the system stops working.

8. The automatic humidity control method for a heat exchange station according to claim 7, characterized in that: In step three, when the lithium chloride aqueous solution level in the solution collection area of ​​the dehumidifier reaches the highest level, the lithium chloride aqueous solution flows into the solution collection area of ​​the regenerator through the overflow prevention pipe. The solution pump works in conjunction with the overflow prevention pipe to circulate the lithium chloride aqueous solution in the regenerator dehumidifier.

9. The automatic humidity control method for a heat exchange station according to claim 7, characterized in that: In step four, the lithium chloride aqueous solution first enters the gas-liquid condenser for the first step of heating before entering the plate heat exchanger.

10. An automatic humidity control method for a heat exchange station according to any one of claims 7-9, characterized in that: The temperature of the lithium chloride aqueous solution in the dehumidifier is 10-30℃, and the concentration is 25%-42%. The air flow rate to solution flow rate ratio in the dehumidifier is 6500:9.

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