A molecular sieve steam heater drain heat recovery system

Abstract

The utility model relates to steam heater technical field and disclose a kind of molecular sieve steam heater drainage heat recovery system, including drainage recovery tank, the upper surface of the drainage recovery tank is fixedly installed with spray tank, wherein, recovery mechanism is provided on the drainage recovery tank, and recovery mechanism includes drain pipe, water pipe, shower nozzle, exhaust pipe, water level control sensor, drainage recovery pipe, drain pump and water tank, the molecular sieve steam heater drainage heat recovery system, by spray tank inner shower nozzle atomization water flow and high temperature drainage contact, cooperate recovery pipe and spray tank outer wall heat exchange, again by air cooling box fan intensification heat exchange, realize heat efficient recovery, and the heat of recovery is converted into spray water source by condensing pipe gallery, reduce additional heating energy consumption, and each component is converted into usable energy by the drainage waste heat, reduce the energy waste of molecular sieve steam heater operation, significantly improve overall energy utilization.

Description

Technical Field

[0001] This utility model relates to the field of steam heater technology, specifically a molecular sieve steam heater hydrophobic heat recovery system. Background Technology

[0002] In the industrial production field, molecular sieve steam heaters are widely used in industries such as petrochemicals, natural gas processing, and food processing as key equipment in gas drying and purification processes. Their working principle is to heat and regenerate the molecular sieve by releasing heat from steam, ensuring that the molecular sieve continues to have the ability to adsorb moisture or impurities. However, in actual operation, a large amount of high-temperature hydrophobicity is generated after the steam and molecular sieve exchange heat.

[0003] Traditional molecular sieve steam heaters often discharge condensate directly or after only simple cooling, failing to effectively recover the significant amount of waste heat carried by the condensate. The sensible and latent heat contained in the high-temperature condensate accounts for 25%-35% of the total steam heat; direct discharge means this energy is completely lost. To maintain the stable heat required for molecular sieve regeneration, the heater needs to continuously consume new steam, resulting in low overall energy efficiency. Especially in large-scale industrial production scenarios, long-term operation leads to enormous energy waste, increasing steam procurement costs for enterprises and severely contradicting current industrial energy conservation requirements under dual-carbon goals, thus failing to meet the development needs of green production. Therefore, a molecular sieve steam heater condensate heat recovery system is proposed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a hydrophobic heat recovery system for a molecular sieve steam heater, which solves the problem of inconvenient hydrophobic heat recovery from steam heaters.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a hydrophobic heat recovery system for a molecular sieve steam heater, comprising a hydrophobic recovery tank, wherein a spray tank is fixedly installed on the upper surface of the hydrophobic recovery tank; The drainage recovery tank is equipped with a recovery mechanism, which includes a drainage pipe, a water pipe, a nozzle, an exhaust pipe, a water level control sensor, a drainage recovery pipe, a drainage pump, and a water tank. The drain pipe is fixedly installed on the inner surface of the spray tank, and the output end of the drain pipe is connected to the drain recovery tank. The water pipe is fixedly installed on the inner surface of the spray tank, the nozzle is fixedly installed on the lower surface of the water pipe, and the exhaust pipe is fixedly installed on the upper surface of the spray tank.

[0006] Preferably, the water level control sensor is fixedly installed on the inner surface of the hydrophobic recovery tank, and the input end of the hydrophobic recovery pipe is fixedly installed in the inner wall of the hydrophobic recovery tank. The condensate pump is installed on the condensate recovery pipe, and the water tank is fixedly installed at the output end of the condensate recovery pipe.

[0007] Preferably, the recycling mechanism further includes a recycling pipe and heat dissipation fins, with the recycling pipe fixedly installed on the outer surface of the spray tank and the heat dissipation fins fixedly installed on the outer surface of the recycling pipe.

[0008] Preferably, the recycling mechanism further includes an air-cooled box and a fan. The air-cooled box is fixedly sleeved on the outer surface of the recycling pipe, and the fan is fixedly installed on the inner surface of the air-cooled box's upright plate. The fan and the recycling pipe are installed in a corresponding manner.

[0009] Preferably, the recycling mechanism further includes a water pump, a condenser tank, and a condenser tube gallery, with the condenser tube gallery fixedly installed at the output end of the recycling pipe and the output end of the condenser tube gallery connected to the water pipe; The condenser tank is located on the outer surface of the condenser tube gallery, and the water pump is fixedly installed on the outer surface of the condenser tube gallery.

[0010] Compared with the prior art, this utility model provides a hydrophobic heat recovery system for a molecular sieve steam heater, which has the following beneficial effects: 1. This molecular sieve steam heater hydrophobic heat recovery system achieves efficient heat recovery by atomizing water flow from nozzles inside the spray tank and contacting high-temperature hydrophobic water, combined with heat exchange between the recovery pipe and the outer wall of the spray tank, and further enhanced heat exchange by the fan in the air-cooled box. The recovered heat is converted into spray water source through the condenser tube gallery, reducing additional heating energy consumption. All components work together to convert hydrophobic waste heat into usable energy, reducing energy waste during the operation of the molecular sieve steam heater and significantly improving the overall energy utilization rate.

[0011] 2. The molecular sieve steam heater hydrophobic heat recovery system collects the condensate after cooling in the hydrophobic recovery tank. The water level is monitored in real time by the water level control sensor to prevent overflow or water shortage. The hydrophobic pump drives the condensate to be transported along the hydrophobic recovery pipe to the water tank for storage and reuse, thus forming a hydrophobic generation and reuse process. This process reduces the waste of water resources caused by direct discharge of condensate. At the same time, the exhaust pipe discharges non-condensable gas to maintain system pressure, ensure stable operation of the equipment, and reduce operation and maintenance costs and environmental impact. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the hydrophobic heat recovery system of a molecular sieve steam heater according to the present invention; Figure 2 This is a schematic diagram of the hydrophobic recovery tank structure of this utility model; Figure 3 This is a schematic diagram of the condenser tank structure of this utility model; Figure 4 This utility model Figure 3 Enlarged view of the structure at point A in the middle.

[0013] In the diagram: 1. Drainage pipe; 2. Spray tank; 3. Drainage recovery tank; 4. Water pipe; 5. Spray head; 6. Exhaust pipe; 7. Water level control sensor; 8. Drainage recovery pipe; 9. Drainage pump; 10. Water tank; 11. Recovery pipe; 12. Water pump; 13. Condensate tank; 14. Condensate tube rack; 15. Air-cooled box; 16. Heat dissipation fins; 17. Fan. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-4 This utility model provides a new technical solution: a molecular sieve steam heater hydrophobic heat recovery system, including a hydrophobic recovery tank 3, and a spray tank 2 is fixedly installed on the upper surface of the hydrophobic recovery tank 3; The drainage recovery tank 3 is equipped with a recovery mechanism, which includes a drainage pipe 1, a water pipe 4, a nozzle 5, an exhaust pipe 6, a water level control sensor 7, a drainage recovery pipe 8, a drainage pump 9, and a water tank 10. The drainage pipe 1 is fixedly installed on the inner surface of the spray tank 2, and the output end of the drainage pipe 1 is connected to the drainage recovery tank 3. The water pipe 4 is fixedly installed on the inner surface of the spray tank 2, the nozzle 5 is fixedly installed on the lower surface of the water pipe 4, and the exhaust pipe 6 is fixedly installed on the upper surface of the spray tank 2.

[0016] Furthermore, the water level control sensor 7 is fixedly installed on the inner surface of the hydrophobic recovery tank 3, and the input end of the hydrophobic recovery pipe 8 is fixedly installed in the inner wall of the hydrophobic recovery tank 3. The condensate pump 9 is installed on the condensate recovery pipe 8, and the water tank 10 is fixedly installed at the output end of the condensate recovery pipe 8.

[0017] Furthermore, the recycling mechanism also includes a recycling pipe 11 and heat dissipation fins 16. The recycling pipe 11 is fixedly installed on the outer surface of the spray tank 2, and the heat dissipation fins 16 are fixedly installed on the outer surface of the recycling pipe 11.

[0018] Furthermore, the recycling mechanism also includes an air-cooled box 15 and a fan 17. The air-cooled box 15 is fixedly sleeved on the outer surface of the recycling pipe 11, and the fan 17 is fixedly installed on the inner surface of the vertical plate of the air-cooled box 15. The fan 17 is installed in a corresponding manner to the recycling pipe 11.

[0019] Furthermore, the recycling mechanism also includes a water pump 12, a condenser tank 13, and a condenser tube gallery 14. The condenser tube gallery 14 is fixedly installed at the output end of the recycling pipe 11, and the output end of the condenser tube gallery 14 is connected to the water pipe 4. The condenser tank 13 is installed on the outer surface of the condenser tube gallery 14, and the water pump 12 is fixedly installed on the outer surface of the condenser tube gallery 14. Structural Explanation: Drainage Pipe 1: As the core component for drainage introduction, it is mainly responsible for transporting the high-temperature drainage generated by the molecular sieve steam heater to the inside of the spray tank 2. It connects the inner surface of the spray tank 2 with the drainage recovery tank 3, and can accurately guide the drainage into the subsequent treatment stage, avoiding the waste of heat caused by the random discharge of drainage. It provides a stable source of drainage for the start-up of the entire heat recovery process and is the key channel for drainage transmission in the system.

[0020] Spray tank 2: It is an important place for the initial treatment of condensate and heat exchange in the system. It is equipped with condensate pipe 1 and water pipe 4 inside, and recovery pipe 11 outside. It receives the high temperature condensate transported by condensate pipe 1, and performs spraying operation through the nozzle 5 on water pipe 4. At the same time, it works with the external recovery pipe 11 to transfer heat, and can also discharge non-condensable gas through the top exhaust pipe 6, creating a suitable environment for subsequent heat recovery and condensate recovery.

[0021] The condensate recovery tank 3 is responsible for the collection, temporary storage and preliminary separation of condensate. It is the core water storage component of the system. The spray tank 2 is fixed on top of it and the water level control sensor 7 is installed inside to monitor the condensate level in the tank in real time to avoid overflow or water shortage. At the same time, the temporarily stored condensate is discharged through the condensate recovery pipe 8 connected to the inner wall to provide a stable delivery medium for the condensate pump 9 and ensure that the condensate recovery process is carried out in an orderly manner.

[0022] Water pipe 4: This is the water supply channel for the spray tank 2. It is fixed on the inner surface of the spray tank 2 and connected to the nozzle 5 on the lower surface. It is mainly responsible for delivering the water after condensation treatment to the nozzle 5, providing a stable water flow for the spray operation. Its pipe diameter and layout are designed to ensure that the water flow is evenly distributed to each nozzle 5, ensuring the spray coverage and intensity, and assisting in heat exchange and drainage treatment in the spray tank 2.

[0023] Nozzle 5: Installed on the lower surface of water pipe 4, it is a key component for realizing the spraying function. After receiving water from water pipe 4, it atomizes or disperses the water into fine water streams through its own structure and sprays them evenly inside the spray tank 2. The atomized water streams can fully contact the high-temperature hydrophobic water or gas inside the spray tank 2, improving the heat exchange efficiency. At the same time, it helps to cool and purify the hydrophobic water, preparing for subsequent recycling.

[0024] Exhaust pipe 6: Fixed on the upper surface of spray tank 2, its main function is to exhaust non-condensable gases inside spray tank 2. During the hydrophobic treatment and heat exchange process, some non-condensable gases will be generated. If they are not discharged in time, they will affect the system pressure and heat exchange efficiency. Exhaust pipe 6 can quickly discharge these gases, maintain the internal pressure of spray tank 2, and ensure the normal operation of the entire system.

[0025] Water level control sensor 7: When the water level control sensor 7 detects that the water level in the condensate recovery tank 3 has reached the preset upper limit, it triggers the condensate pump 9 to start. When the water level is lower than the preset lower limit, the condensate pump 9 stops. Fixed to the inner surface of the condensate recovery tank 3, it is the core sensing component for monitoring the condensate level in the tank. By detecting the height of the condensate in the condensate recovery tank 3 in real time, it transmits the water level signal to the system control unit. When the water level is too high, it can trigger the relevant device to stop the condensate introduction; when the water level is too low, it prompts to replenish or check the source of condensate, so as to avoid the condensate pump 9 and the system stability being affected by abnormal water level.

[0026] The hydrophobic recovery pipe 8 has its inlet end fixed to the inner wall of the hydrophobic recovery tank 3. It is the main pipe for hydrophobic drainage. One end is connected to the hydrophobic water in the hydrophobic recovery tank 3, and the other end is connected to the water tank 10 through the hydrophobic pump 9, forming a hydrophobic recovery conveying path. Its material and sealing performance have been strictly selected to withstand the temperature and corrosion of the hydrophobic water, ensuring that there is no leakage during the transportation process and that the hydrophobic water flows efficiently to the water tank 10 to complete the recovery.

[0027] Drain pump 9: Installed on the drain recovery pipe 8, it provides power for drain transportation. Since the drain is in a relatively static state in the drain recovery tank 3, it needs to be pumped and pressurized by the drain pump 9 to drive the drain to flow in the drain recovery pipe 8, overcome the pipe resistance, and be smoothly transported to the water tank 10. Its power and head are designed according to the system drain flow rate to ensure the stability and efficiency of drain transportation.

[0028] Water tank 10: Fixed at the output end of the condensate recovery pipe 8, it is the final storage component for condensate recovery. It receives the condensate transported by the condensate recovery pipe 8 and the condensate pump 9 and stores the recovered condensate in a centralized manner. At the same time, the water tank 10 has certain heat preservation and filtration functions, which can reduce the heat loss of the condensate and remove some impurities, providing a clean and stable water source for the subsequent reuse of the recovered condensate (such as reuse as boiler feedwater).

[0029] Recovery pipe 11: Fixed on the outer surface of spray tank 2, it is an important channel for heat recovery. The medium to be heated (such as cold water) is transported inside, and the outside is in contact with spray tank 2. At the same time, heat dissipation fins 16 are installed. When the spray tank 2 is treated with high temperature and water, the heat will be transferred to the outer wall of spray tank 2, and then transferred to the medium inside the pipe through the wall of recovery pipe 11, so as to realize heat recovery and improve the energy utilization rate of the system.

[0030] Condensing tank 13: Located on the outer surface of condensing tube gallery 14, its main function is to assist condensing tube gallery 14 in condensation operation. Through its own structure and material properties, it provides a low temperature environment for condensing tube gallery 14 or enhances heat dissipation, helping the medium (such as steam or high temperature gas) in condensing tube gallery 14 to cool down and condense into liquid quickly. At the same time, it can collect some of the condensate generated during the condensation process, helping to ensure the condensation efficiency of condensing tube gallery 14.

[0031] Condensation tube gallery 14: Fixedly installed at the output end of recovery pipe 11 and connected to water pipe 4 at the output end, it undertakes the dual functions of medium condensation and transportation. It receives the medium with heat transported by recovery pipe 11, and completes condensation with the assistance of condensation tank 13, converting the gaseous medium into liquid water. Then, the condensed water is transported to water pipe 4 to provide spray water source for nozzle 5, realizing the recycling of heat and water resources.

[0032] Air-cooled box 15: Fixedly sleeved on the outer surface of the recovery pipe 11, it is an auxiliary heat dissipation component of the recovery pipe 11. A fan 17 is installed inside it. The box structure encloses the recovery pipe 11 to form a relatively closed heat dissipation space. It can concentrate the airflow generated by the fan 17, guide the airflow to act evenly on the surface of the recovery pipe 11, enhance the heat exchange between the recovery pipe 11 and the air, help regulate the temperature of the medium inside the recovery pipe 11, and ensure the heat recovery effect.

[0033] Heat dissipation fins 16: Fixedly mounted on the outer surface of the recovery pipe 11, these components enhance the heat dissipation and heat absorption efficiency of the recovery pipe 11. They are finned and densely distributed, significantly increasing the contact area between the recovery pipe 11 and the external environment (air or the outer wall of the spray tank 2). During heat transfer, they can quickly transfer heat from the medium inside the recovery pipe 11 to the outside, or absorb heat from the outside and transfer it to the medium inside the pipe, significantly improving the heat exchange efficiency of the recovery pipe 11 and aiding in system heat recovery and temperature regulation. Fan 17: Fixedly installed on the inner surface of the vertical plate of the air-cooled box 15 and corresponding to the recovery pipe 11, it is the power source for air cooling. After being powered on, it generates airflow. Under the guidance of the air-cooled box 15, the airflow blows directly onto the surface of the recovery pipe 11. Through forced convection, it accelerates the heat dissipation on the surface of the recovery pipe 11, helps to reduce the temperature of the medium inside the recovery pipe 11, and ensures that the state of the medium inside the recovery pipe 11 meets the requirements for subsequent condensation and transportation.

[0034] In this molecular sieve steam heater hydrophobic heat recovery system, the high-temperature hydrophobic water generated by the molecular sieve steam heater is transported to the interior of the spray tank 2 via the hydrophobic pipe 1, where some of the heat is transferred to the outer wall of the spray tank 2. Simultaneously, the condenser tube corridor 14 (after auxiliary condensation by the condenser tank 13) transports liquid water to the water pipe 4, which is then atomized and sprayed through the nozzle 5. The atomized water flow makes full contact with the high-temperature hydrophobic water inside the spray tank 2, improving heat exchange efficiency and assisting in cooling the hydrophobic water. Non-condensable gases generated during the process are discharged through the exhaust pipe 6 on the spray tank 2, and the heat from the outer wall of the spray tank 2 is transferred to the outer surface. The medium inside the recovery pipe 11 absorbs heat, while the fan 17 inside the air-cooled box 15 generates airflow. This, combined with the heat dissipation fins 16 outside the recovery pipe 11, accelerates heat exchange and regulates the temperature of the medium inside the pipe. Finally, the medium is output through the recovery pipe 11 to the condenser tube gallery 14 to complete the condensation cycle. The cooled condensate enters the condensate recovery tank 3 for temporary storage, and the water level control sensor 7 monitors the water level in real time. When recycling is required, the condensate pump 9 starts and transports the condensate in the condensate recovery tank 3 to the water tank 10 for storage through the condensate recovery pipe 8, thus realizing the recycling and reuse of water resources.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hydrophobic heat recovery system for a molecular sieve steam heater, comprising a hydrophobic recovery tank (3), characterized in that: A spray tank (2) is fixedly installed on the upper surface of the hydrophobic recovery tank (3); The hydrophobic recovery tank (3) is equipped with a recovery mechanism, which includes a hydrophobic pipe (1), a water pipe (4), a nozzle (5), an exhaust pipe (6), a water level control sensor (7), a hydrophobic recovery pipe (8), a hydrophobic pump (9), and a water tank (10). Among them, the drainage pipe (1) is fixedly installed on the inner surface of the spray tank (2), and the output end of the drainage pipe (1) is connected to the drainage recovery tank (3); Among them, the water pipe (4) is fixedly installed on the inner surface of the spray tank (2), the nozzle (5) is fixedly installed on the lower surface of the water pipe (4), and the exhaust pipe (6) is fixedly installed on the upper surface of the spray tank (2).

2. The molecular sieve steam heater hydrophobic heat recovery system according to claim 1, characterized in that: The water level control sensor (7) is fixedly installed on the inner surface of the hydrophobic recovery tank (3), and the input end of the hydrophobic recovery pipe (8) is fixedly installed in the inner wall of the hydrophobic recovery tank (3). The condensate pump (9) is installed on the condensate recovery pipe (8), and the water tank (10) is fixedly installed at the output end of the condensate recovery pipe (8).

3. The molecular sieve steam heater hydrophobic heat recovery system according to claim 1, characterized in that: The recycling mechanism also includes a recycling pipe (11) and heat dissipation fins (16). The recycling pipe (11) is fixedly installed on the outer surface of the spray tank (2), and the heat dissipation fins (16) are fixedly installed on the outer surface of the recycling pipe (11).

4. The molecular sieve steam heater hydrophobic heat recovery system according to claim 1, characterized in that: The recycling mechanism also includes an air-cooled box (15) and a fan (17). The air-cooled box (15) is fixedly sleeved on the outer surface of the recycling pipe (11), and the fan (17) is fixedly installed on the inner surface of the upright plate of the air-cooled box (15). The fan (17) and the recycling pipe (11) are installed in a corresponding manner.

5. The molecular sieve steam heater hydrophobic heat recovery system according to claim 1, characterized in that: The recycling mechanism also includes a water pump (12), a condenser tank (13) and a condenser tube gallery (14). The condenser tube gallery (14) is fixedly installed at the output end of the recycling pipe (11), and the output end of the condenser tube gallery (14) is connected to the water pipe (4). The condenser (13) is located on the outer surface of the condenser tube gallery (14), and the water pump (12) is fixedly installed on the outer surface of the condenser tube gallery (14).

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