A deoxygenated water tank for a rotary film deaerator

Abstract

This utility model relates to the field of deoxygenation water tank technology, specifically disclosing a deoxygenation water tank for a rotary film deaerator. It includes a tank shell, with side covers detachably and fixedly installed at both ends. An inlet pipe and an exhaust pipe are fixedly connected to the top of the tank, and an outlet pipe and a drain pipe are fixedly connected to both sides of the bottom. A flow regulating valve is installed in the inlet pipe, and valves are installed in the exhaust pipe, outlet pipe, and drain pipe. One end of the inlet pipe extends into the tank shell and is fixedly connected to a flow guide shroud. A diversion pipe is fixedly connected to the bottom of the flow guide shroud. In this utility model, the diversion pipe and water distribution pipe evenly distribute the water flow to multiple sets of water distribution pipes, which then evenly spray the water onto the cross-section of the tank, ensuring sufficient contact between the water and steam, improving deoxygenation efficiency, and avoiding stagnant water zones that could affect the treatment effect.

Description

Technical Field

[0001] This utility model relates to the field of deoxygenated water tank technology, and in particular to a deoxygenated water tank for a rotary film deoxygenator. Background Technology

[0002] As a highly efficient deoxygenation device, the rotary film deaerator is widely used in industrial production. Its core function is to heat water to its boiling point and use steam to carry away non-condensable gases such as oxygen from the water, thereby achieving the purpose of deoxygenation.

[0003] As an important component of the rotary film deaerator, the deaerator water tank is mainly used to store qualified water after deaeration treatment and to provide a stable water source for equipment such as boilers.

[0004] In the prior art, Chinese Patent No. CN216079764U discloses a deoxygenation water tank for a rotary film deaerator, including a cylindrical body. Both ends of the cylindrical body are fixedly connected to end caps. One end of the end cap has a manhole, and the other end of the end cap has a hand opening. The bottom of the cylindrical body is provided with support legs, a drain outlet, a water balance outlet, a water outlet, and a spare outlet. The top of the cylindrical body is provided with a safety valve, an overflow ring, a steam balance outlet, and a water pump circulation outlet. A water level gauge is provided on the side wall of the cylindrical body. A rotating pipe is passed through the top of the cylindrical body. The upper end of the rotating pipe is connected to a rotary vent connector, and the lower end of the rotating pipe is connected to a steam heating mechanism. The top of the cylindrical body is provided with a drive mechanism for driving the rotating pipe to rotate.

[0005] The deoxygenation tank in the aforementioned patent has some shortcomings in structural design compared to traditional deoxygenation tanks: uneven water flow distribution inside the tank can easily form dead water zones, causing some water to remain for too long, thus re-dissolving oxygen and affecting the deoxygenation effect. Utility Model Content

[0006] In view of the technical problem that the water flow distribution inside the water tank is uneven and stagnant water zone is easily formed in the existing technology, this utility model provides a deoxygenated water tank for a rotary film deaerator.

[0007] The technical solution adopted by this utility model is as follows: a deoxygenated water tank for a rotary film deaerator, comprising a water tank shell, both ends of which are detachably and fixedly provided with side covers, an inlet pipe and an exhaust pipe fixedly connected to the top of the water tank, an outlet pipe and a drain pipe fixedly connected to both sides of the bottom of the water tank, a flow regulating valve installed in the inlet pipe, and valves installed in the exhaust pipe, outlet pipe and drain pipe, one end of the inlet pipe extending into the water tank shell and then fixedly connected to a flow guide shroud, a diversion pipe fixedly connected to the bottom of the flow guide shroud, both ends of the diversion pipe being fixedly connected to the inner sides of the water tank shell respectively, and multiple sets of water distribution pipes fixedly connected to the bottom of the diversion pipe, and a steam conveying assembly also provided in the water tank shell.

[0008] A further feature of this invention is that the flow guide is an inverted conical structure, and multiple sets of flow guide blades are fixedly connected inside the flow guide.

[0009] A further feature of this invention is that multiple sets of corrugated plates are fixedly connected inside the water tank shell, the corrugated plates are located below the water distribution pipe, and there are gaps between the corrugated plates.

[0010] The present invention is further configured such that the waveform plate is made of stainless steel, with a plate thickness of 2mm, a waveform wavelength of 100mm, and a wave height of 20mm; each waveform plate is 1000mm×500mm in size and is fixed to the inner wall of the water tank shell by bolt connection.

[0011] A further feature of this invention is that the steam conveying assembly includes a main steam pipe and multiple sets of steam branch pipes fixedly connected to the main steam pipe. The main steam pipe is fixedly connected to the water tank shell, and the steam branch pipes are located inside the water tank shell.

[0012] A further feature of this invention is that a steam nozzle is fixedly connected to the top of the steam branch pipe, and a pneumatic diaphragm regulating valve is fixedly connected to the main steam pipe.

[0013] A further feature of this invention is that a liquid level sensor is fixedly connected inside the water tank housing, and a controller is provided outside the water tank housing. The liquid level sensor and the flow regulating valve are both electrically coupled to the controller.

[0014] A further feature of this invention is that an insulation cover is fitted over the exterior of the water tank shell.

[0015] The beneficial effects of this utility model are as follows: In this utility model, with the setting of the diversion pipe and the water distribution pipe, the water flow is evenly distributed to multiple sets of water distribution pipes through the diversion pipe, and the water distribution pipe then evenly sprays the water onto the cross-section of the water tank, ensuring that the water and steam are in full contact, improving the deoxygenation efficiency, and avoiding the occurrence of dead water zones that affect the treatment effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the water tank shell in this utility model; Figure 3 This is a schematic diagram of the main structure of the water tank shell in this utility model; Figure 4 This is a cross-sectional structural diagram of the air guide cover of this utility model; Figure 5 This is a schematic diagram of the corrugated plate structure in this utility model.

[0017] The diagram is marked as follows: 1. Water tank shell; 2. Inlet pipe; 3. Flow regulating valve; 4. Side cover; 5. Exhaust pipe; 6. Outlet pipe; 7. Sewage pipe; 8. Valve; 9. Steam main pipe; 10. Pneumatic diaphragm regulating valve; 11. Flow guide shroud; 12. Flow guide vane; 13. Diverter pipe; 14. Water distribution pipe; 15. Corrugated plate; 16. Gap; 17. Steam branch pipe; 18. Steam nozzle. Detailed Implementation

[0018] In the description of this utility model, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing 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 this utility model.

[0019] The following is in conjunction with the appendix Figure 1-5 The present invention will be further described below.

[0020] To address the problems existing in the background art, this application proposes the following technical solution: A deaerator water tank for a rotary film deaerator, comprising a tank shell 1, an insulation cover fitted over the outside of the tank shell 1, side covers 4 detachably and fixedly installed at both ends of the tank shell 1, an inlet pipe 2 and an exhaust pipe 5 fixedly connected to the top of the tank, an outlet pipe 6 and a drain pipe 7 fixedly connected to both sides of the bottom of the tank, a flow regulating valve 3 installed in the inlet pipe 2, and valves 8 installed in the exhaust pipe 5, the outlet pipe 6, and the drain pipe 7, with one end of the inlet pipe 2 extending into the tank shell 1 and fixedly connected to a flow guide shroud 11, the bottom of which is fixedly connected to a branch... The flow pipe 13 and the branch pipe 13 are fixedly connected to the inner sides of the water tank shell 1 at both ends. Multiple sets of water distribution pipes 14 are fixedly connected to the bottom of the branch pipe 13. The water tank shell 1 also contains a steam conveying assembly. The valves 8 installed in the outlet pipe 6 include a check valve and a gate valve. The valve 8 installed in the drain pipe 7 is a drain valve. The valve 8 in the vent pipe is a solenoid valve. The guide shroud 11 has an inverted conical structure, and multiple sets of guide vanes 12 are fixedly connected inside the guide shroud 11. The water tank shell 1, as the core container for storing and treating water, is made of high-strength, corrosion-resistant material, capable of withstanding temperature and pressure changes during water heating, ensuring long-term stable operation. The external insulation cover, through the insulation cotton in the internal insulation cavity, effectively reduces heat exchange between the water tank shell 1 and the outside environment, reducing heat loss and maintaining a stable water temperature inside the tank, providing a continuously suitable environment for deoxygenation treatment. The removable side covers 4 at both ends facilitate inspection, cleaning, and maintenance of the water tank interior, allowing for easy operation without the need for complex tools. The top inlet pipe 2 introduces the water to be treated into the water tank, while the vent pipe 5 discharges non-condensable gases released during the deoxygenation process, ensuring effective deoxygenation. The bottom outlet pipe 6 transports the treated water to external equipment, and the drain pipe 7 periodically removes sediment and impurities from the bottom of the tank to prevent water pollution. The flow regulating valve 3 in the inlet pipe 2 precisely controls the water inflow, working in conjunction with the level control device to maintain a stable water level in the tank. Valves 8 on the vent pipe 5, outlet pipe 6, and drain pipe 7 control the opening and closing of each pipe. The check valve on the outlet pipe 6 prevents backflow, the gate valve controls the water outlet, the drain valve facilitates periodic drainage, and the solenoid valve quickly controls the opening and closing of the vent pipe 5, improving operational efficiency. The inlet pipe 2 extends into the water tank and connects to the inverted conical guide shroud 11, which effectively buffers the impact of the water flow. Combined with multiple sets of guide vanes 12 inside, it ensures smooth water flow distribution, preventing direct impact on the internal structure of the water tank and thus avoiding water disturbance. The diversion pipe 13 evenly distributes the water flow to multiple sets of distribution pipes 14, which then evenly spray the water onto the cross-section of the water tank, ensuring full contact between the water and steam, improving deoxygenation efficiency, and preventing stagnant water zones that could affect the treatment effect. The steam delivery assembly provides steam for heating the water tank, allowing the water to reach its boiling point through heat exchange, releasing dissolved gases and achieving deoxygenation.

[0021] In this embodiment, multiple sets of corrugated plates 15 are fixedly connected inside the water tank shell 1. The corrugated plates 15 are located below the water distribution pipe 14, and there is a gap 16 between the corrugated plates 15. The corrugated plates are made of stainless steel with a thickness of 2mm, a wavelength of 100mm, and a wave height of 20mm. Each corrugated plate is 1000mm × 500mm in size and is fixed to the inner wall of the water tank shell 1 by bolts. The multiple sets of corrugated plates 15 inside the water tank shell 1, located below the water distribution pipe 14, play an important role in the process of water falling. The corrugated plates 15 are made of stainless steel, which has good corrosion resistance and high temperature resistance, can adapt to the working environment inside the water tank, and extend their service life. The 2mm thickness ensures the structural strength of the corrugated plates 15, making them less prone to deformation and able to stably withstand the impact and pressure of water.

[0022] The corrugated plate 15 is designed with a reasonable wavelength and wave height, forming a regular wave-shaped structure. When water is sprayed from the water distribution pipe 14 onto the corrugated plate 15, the wave-shaped surface can disperse the water into finer water streams and water films, increasing the contact area between the water and steam, and promoting heat exchange and gas release. The gaps 16 between the corrugated plates 15 provide an upward channel for steam and released gas, allowing non-condensable gases to flow upward smoothly and be discharged through the exhaust pipe 5.

[0023] Each corrugated plate 15 is of moderate size and is bolted to the inner wall of the water tank, ensuring a secure and reliable connection while facilitating disassembly and replacement. Multiple sets of corrugated plates 15 are arranged in layers, allowing the water to be dispersed and contacted with steam multiple times during its descent, further enhancing the deoxygenation effect. This corrugated plate 15 design effectively improves the thermal utilization rate of steam, enhances deoxygenation efficiency, and ensures that dissolved gases in the water are fully removed.

[0024] In this embodiment, the steam delivery assembly includes a steam main pipe 9 and multiple sets of steam branch pipes 17 fixedly connected to the steam main pipe 9. The steam main pipe 9 is fixedly connected to the water tank shell 1, and the steam branch pipes 17 are located inside the water tank shell 1. Steam nozzles 18 are fixedly connected to the top of the steam branch pipes 17, and a pneumatic diaphragm regulating valve 10 is fixedly connected to the steam main pipe 9. The steam main pipe 9 in the steam delivery assembly is responsible for introducing external steam into the water tank, while the multiple sets of steam branch pipes 17 evenly distribute the steam to different areas of the water tank, ensuring that the steam can fully contact the water. The steam nozzles 18 at the top of the steam branch pipes 17 can disperse the steam into fine bubbles or steam streams, increasing the contact area between the steam and the water and promoting heat exchange.

[0025] The pneumatic diaphragm regulating valve 10 in the steam main 9 can automatically adjust the steam supply according to the water temperature in the water tank, ensuring that the water temperature is stable at the boiling point and providing suitable temperature conditions for deoxygenation. When the water temperature is lower than the set value, the regulating valve opening increases, increasing the steam supply; when the water temperature is too high, the regulating valve opening decreases, reducing the steam supply, achieving precise control and avoiding energy waste.

[0026] This steam delivery and regulation method ensures uniform steam distribution within the water tank, sufficient heat exchange, and stable deoxygenation. At the same time, by automatically adjusting the steam supply, it improves the automation level and energy efficiency of the equipment and reduces the intensity of manual operation.

[0027] In this embodiment, a liquid level sensor is fixedly connected inside the water tank shell 1, and a controller is provided outside the water tank shell 1. The liquid level sensor and the flow regulating valve 3 are both electrically coupled to the controller. The electrical coupling of the liquid level sensor, the controller, and the flow regulating valve 3 forms a closed-loop automatic control system, which can quickly respond to changes in liquid level and adjust the water inflow in a timely manner to ensure the stability and reliability of the water tank operation. This automated control method reduces manual intervention, lowers operational errors, and improves the operating efficiency and safety of the equipment.

[0028] Meanwhile, the controller can also integrate other control functions, such as working with temperature sensors and pneumatic diaphragm regulating valves 10, to achieve automatic control of water temperature, further improving the automation level and treatment effect of deoxygenation treatment, and ensuring that the equipment is always in the best operating condition.

[0029] The usage method of this embodiment is as follows: Water inlet stage: After preliminary deoxygenation by the vortex film deaerator, the water enters the water tank shell 1 through the water inlet device. The water first passes through the flow regulating valve 3, which adjusts its opening according to the instructions of the liquid level control device to control the water inlet volume. Then, under the action of the guide shroud 11 and the guide vanes 12, the impact force of the water flow is reduced, and it smoothly enters the diversion pipe 13 and the distribution pipe 14.

[0030] The water is evenly sprayed onto the entire cross-section of the water tank shell 1 through the water distribution holes at the bottom of the water distribution pipe 14. This can prevent the water flow from concentrating in a certain area, prevent the formation of stagnant water areas, and ensure that the water in the water tank shell 1 can be evenly heated and deoxygenated in the subsequent process.

[0031] Steam heating and deoxygenation process: External steam enters the steam branch pipe 17 through the steam main pipe 9, and is evenly sprayed into the water in the water tank through the steam nozzles on the steam branch pipe 17.

[0032] Steam and water undergo thorough heat exchange, raising the water temperature to its boiling point. During heating, dissolved non-condensable gases such as oxygen are released and rise with the steam. As the steam and non-condensable gases rise to the corrugated plate 15, the plate blocks water droplets carried by the steam, making the steam drier and improving its thermal efficiency. Simultaneously, the non-condensable gases continue to rise with the steam and are eventually discharged through the vent pipe 5 at the top of the water tank shell 1.

[0033] Water discharge stage: After thorough deoxygenation, the water collects at the bottom of the water tank and is then transported to external equipment such as boilers through the water discharge pipe 6. During the water discharge process, a check valve prevents backflow, and a gate valve controls the opening and closing of the water discharge; a filter can also be installed in the water discharge pipe 6 for filtration.

[0034] A level sensor monitors the water level in the tank in real time and transmits the signal to the controller. The controller adjusts the opening of the flow regulating valve 3 based on the water level to regulate the inflow and maintain the water level within a set range. Additionally, a temperature sensor can be installed to monitor the water temperature in real time and transmit the signal to the controller. The controller then adjusts the opening of the pneumatic diaphragm regulating valve 10 to regulate the steam supply and maintain the water temperature at the set boiling point, ensuring effective deoxygenation.

[0035] Regularly open the drain valve to discharge the sediment and impurities at the bottom of the water tank into the sedimentation tank through the drain pipe 7. After preliminary sedimentation, the sediment and impurities are discharged outside the water tank to ensure the cleanliness of the water inside the tank.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] Although embodiments of the present invention have been shown and described, the scope of the present invention will be defined by the appended claims and their equivalents for those skilled in the art.

Claims

1. A deaerating water tank for a spin-on deaerator, characterized by, The system includes a water tank shell (1), both ends of which are detachably and fixedly equipped with side covers (4). The top of the water tank is fixedly connected to an inlet pipe (2) and an exhaust pipe (5). The bottom sides of the water tank are fixedly connected to an outlet pipe (6) and a drain pipe (7). A flow regulating valve (3) is installed in the inlet pipe (2). Valves (8) are installed in the exhaust pipe (5), the outlet pipe (6), and the drain pipe (7). One end of the inlet pipe (2) extends into the water tank shell (1) and is fixedly connected to a flow guide (11). A diversion pipe (13) is fixedly connected to the bottom of the flow guide (11). Both ends of the diversion pipe (13) are fixedly connected to the inner sides of the water tank shell (1). Multiple sets of water distribution pipes (14) are fixedly connected to the bottom of the diversion pipe (13). A steam conveying assembly is also provided in the water tank shell (1).

2. The deaerating water box for a disc and drum deaerator according to claim 1, wherein The flow guide (11) has an inverted conical structure, and multiple sets of flow guide blades (12) are fixedly connected inside the flow guide (11).

3. The deaerating water box for a disc and drum deaerator according to claim 1, wherein Multiple sets of corrugated plates (15) are fixedly connected inside the water tank shell (1). The corrugated plates (15) are located below the water distribution pipe (14), and there are gaps (16) between the corrugated plates (15).

4. The deaerating water box for a disc and drum deaerator according to claim 3, wherein The corrugated plate is made of stainless steel with a thickness of 2mm, a waveform wavelength of 100mm, and a wave height of 20mm. Each corrugated plate is 1000mm×500mm in size and is fixed to the inner wall of the water tank shell (1) by bolt connection.

5. The deaerating water box for a disc and drum deaerator according to claim 1, wherein The steam delivery assembly includes a steam main pipe (9) and multiple sets of steam branch pipes (17) fixedly connected to the steam main pipe (9). The steam main pipe (9) is fixedly connected to the water tank shell (1), and the steam branch pipes (17) are located inside the water tank shell (1).

6. A deaerating water box for a disc and drum deaerator according to claim 5, wherein A steam nozzle (18) is fixedly connected to the top of the steam branch pipe (17), and a pneumatic diaphragm regulating valve (10) is fixedly connected to the steam main pipe (9).

7. The deaerating water box for a disc and drum deaerator according to claim 1, wherein A liquid level sensor is fixedly connected inside the water tank housing (1), and a controller is provided outside the water tank housing (1). The liquid level sensor and the flow regulating valve (3) are both electrically coupled to the controller.

8. The deaerating water box for a disc and drum deaerator according to claim 1, wherein The water tank shell (1) is covered with an insulation cover.

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