Boiler energy-saving device for recycling steam condensation water

Abstract

The utility model relates to a boiler energy-saving device for recovering steam condensation water, and aims to solve the technical problems that the current boiler energy-saving device for recovering steam condensation water needs to use a suction pump to suck liquid in the device, and a proper amount of liquid cannot be automatically replaced and added during use. A liquid storage mechanism, a heat exchange mechanism and a heat energy storage mechanism are sequentially mounted on the mounting frame from top to bottom, a liquid supply pipe is connected to the top end of the liquid storage mechanism through a first electromagnetic valve, first liquid level sensors are mounted on one side and the bottom of the liquid storage mechanism, and a liquid guide pipe is connected to the top end of the heat exchange mechanism through a second electromagnetic valve. According to the energy-saving device for the boiler, liquid in the liquid storage mechanism, the heat exchange mechanism and the heat energy storage mechanism can flow out automatically, the situation that a suction pump is used for sucking the liquid in the liquid storage mechanism, the heat exchange mechanism and the heat energy storage mechanism is avoided, and therefore the energy-saving effect of the energy-saving device for the boiler in the using process is improved.

Description

Technical Field

[0001] This utility model relates to the field of boiler energy-saving devices, specifically a boiler energy-saving device for recovering steam condensate. Background Technology

[0002] The hot steam produced by the furnace combustion is at a very high temperature and contains a large amount of water. If it is discharged directly, it will not only waste energy but also waste a lot of water resources. Current technologies mostly use the principle of heat exchange to reduce the temperature of the steam, which will then form condensate and be recycled.

[0003] According to published patent 202121705522.3, a boiler steam condensate recovery device includes a cooling box with an open top. A cover plate is fixedly installed on the top of the cooling box, and a water inlet pipe is embedded in the top of the cover plate, connecting to the interior of the cooling box. The cooling box is filled with cooling water. A first drain pipe is connected to and fixed to the bottom left side of the cooling box, and a first valve is connected to and fixed to the left end of the first drain pipe. A steam pipe is embedded on the left side of the cooling box, and an arched heat exchange tube is provided inside the cooling box. In the process of developing this utility model, the inventors discovered that at least the following problems remain unsolved in the prior art: while the arched heat exchange tube inside the cooling box solves the problem of not being able to recover and utilize the heat from the steam, traditional boiler energy-saving devices for recovering steam condensate require a suction pump to draw out the liquid inside, and cannot automatically replace or add appropriate amounts of liquid during use. Therefore, a new technical solution needs to be designed to address these issues. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a boiler energy-saving device for recovering steam condensate, so as to solve the technical problem that the current boiler energy-saving device for recovering steam condensate needs to use a suction pump to suck up the liquid inside, and cannot automatically replace and add appropriate amount of liquid during use.

[0005] To achieve the purpose of this utility model, the technical solution adopted by this utility model is as follows: A boiler energy-saving device for recovering steam condensate is designed, including a mounting frame. From top to bottom, the mounting frame sequentially mounts a liquid storage mechanism, a heat exchange mechanism, and a thermal energy storage mechanism. The top of the liquid storage mechanism is connected to a liquid supply pipe via a first solenoid valve. First liquid level sensors are installed on one side and at the bottom of the liquid storage mechanism. The top of the heat exchange mechanism is connected to a liquid guide pipe via a second solenoid valve. The bottom of the heat exchange mechanism is connected to a liquid delivery pipe via a third solenoid valve. Second liquid level sensors are installed on one side and at the bottom of the heat exchange mechanism. A first temperature sensor is installed on the other side of the heat exchange mechanism. The bottom of the thermal energy storage mechanism is connected to a drain pipe via a fourth solenoid valve. Third liquid level sensors are installed on one side and at the bottom of the thermal energy storage mechanism. A second temperature sensor is installed on the other side of the thermal energy storage mechanism.

[0006] Preferably, a heat exchange tube is installed inside the heat exchange mechanism, one end of the heat exchange tube is sealed and connected to an air inlet pipe, and the other end of the heat exchange tube is sealed and connected to an air outlet pipe.

[0007] Preferably, one end of the first solenoid valve is sealed and connected to the top of the liquid storage mechanism, the other end of the first solenoid valve is sealed and connected to one end of the liquid supply pipe, and the detection end of the first liquid level sensor is located inside the liquid storage mechanism.

[0008] Preferably, one end of the second solenoid valve is sealed and connected to the top of the heat exchange mechanism, the other end of the second solenoid valve is sealed and connected to one end of the liquid guide pipe, the other end of the liquid guide pipe is sealed and connected to the bottom of the liquid storage mechanism, and the detection end of the second liquid level sensor is located inside the heat exchange mechanism.

[0009] Preferably, one end of the third solenoid valve is sealed and connected to the bottom of the heat exchange mechanism, one end of the infusion tube is sealed and connected to the other end of the third solenoid valve, the other end of the infusion tube is sealed and connected to the top of the thermal energy storage mechanism, and the detection end of the third liquid level sensor is located inside the thermal energy storage mechanism.

[0010] Preferably, the first temperature sensor, the second temperature sensor, the first liquid level sensor, the second liquid level sensor, the third liquid level sensor, the first solenoid valve, the second solenoid valve, the third solenoid valve, and the fourth solenoid valve are each electrically connected to the controller via wires.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This utility model combines a liquid storage mechanism, a heat exchange mechanism, and a thermal energy storage mechanism arranged sequentially from top to bottom on a mounting frame. This allows the liquid inside the liquid storage mechanism, heat exchange mechanism, and thermal energy storage mechanism to flow out automatically, avoiding the need to use a suction pump to draw out the liquid inside, thereby improving the energy-saving effect of the boiler energy-saving device during use.

[0013] When the liquid temperature inside the heat exchange mechanism reaches the detection range of the first temperature sensor, the controller first controls the third solenoid valve to open. At this time, the liquid inside the heat exchange mechanism flows into the interior of the heat storage mechanism through the liquid delivery pipe. When the liquid level inside the heat exchange mechanism reaches the detection range of the second liquid level sensor installed at the bottom, the controller controls the third solenoid valve to close and the second solenoid valve to open. At this time, the liquid in the storage mechanism flows into the interior of the heat exchange mechanism through the liquid guide pipe. When the liquid level inside the heat exchange mechanism reaches the detection range of the second liquid level sensor above the heat exchange mechanism, the controller controls the second solenoid valve to close. When the liquid level in the storage mechanism reaches the detection range of the first liquid level sensor at the bottom, the controller... The controller opens the first solenoid valve, allowing liquid from the supply pipe to enter the storage mechanism. When the liquid level in the storage mechanism reaches the detection range of the first liquid level sensor above, the controller closes the first solenoid valve. When the liquid level in the thermal energy storage mechanism reaches the detection range of the third liquid level sensor above, the controller opens the fourth solenoid valve, allowing liquid to drain from the drain pipe. When the liquid level in the thermal energy storage mechanism reaches the detection range of the third liquid level sensor below, the controller closes the fourth solenoid valve. This allows the boiler energy-saving device to automatically replace and add appropriate amounts of liquid during use, improving the convenience of the device. Attached Figure Description

[0014] Figure 1 This is the front view of the present invention;

[0015] Figure 2 This is a cross-sectional view of the heat exchange mechanism of this utility model;

[0016] Figure 3 This is the control flowchart of this utility model;

[0017] In the diagram: 1. Mounting bracket; 11. Liquid storage mechanism; 12. Heat exchange mechanism; 13. Thermal energy storage mechanism; 14. First solenoid valve; 15. Liquid supply pipe; 16. First liquid level sensor; 17. Second solenoid valve; 18. Liquid guide pipe; 19. Third solenoid valve;

[0018] 2. Infusion tube; 21. Second liquid level sensor; 22. First temperature sensor; 23. Fourth solenoid valve; 24. Drain tube; 25. Third liquid level sensor; 26. Second temperature sensor; 27. Controller;

[0019] 3. Heat exchange tube; 31. Inlet pipe; 32. Outlet pipe. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0021] Example 1: A boiler energy-saving device for recovering steam condensate, see [link to example]. Figures 1 to 3 The system includes a mounting frame 1, on which a liquid storage mechanism 11, a heat exchange mechanism 12, and a thermal energy storage mechanism 13 are sequentially mounted from top to bottom. The top of the liquid storage mechanism 11 is connected to a liquid supply pipe 15 via a first solenoid valve 14. First liquid level sensors 16 are mounted on one side and at the bottom of the liquid storage mechanism 11. One end of the first solenoid valve 14 is sealed to the top of the liquid storage mechanism 11, and the other end is sealed to one end of the liquid supply pipe 15. The detection ends of the first liquid level sensors 16 are all located on the liquid storage mechanism 11. Inside, the top of the heat exchange mechanism 12 is connected to a liquid guide pipe 18 via a second solenoid valve 17, and the bottom of the heat exchange mechanism 12 is connected to a liquid delivery pipe 2 via a third solenoid valve 19. Second liquid level sensors 21 are installed on one side and at the bottom of the heat exchange mechanism 12. One end of the second solenoid valve 17 is sealed to the top of the heat exchange mechanism 12, and the other end of the second solenoid valve 17 is sealed to one end of the liquid guide pipe 18. The other end of the liquid guide pipe 18 is sealed to the bottom of the liquid storage mechanism 11. The second liquid level sensor 21 detects... The end of the heat storage mechanism 11 is located inside the heat exchange mechanism 12. A first temperature sensor 22 is installed on the other side of the heat exchange mechanism 12. The bottom end of the heat storage mechanism 13 is connected to a drain pipe 24 through a fourth solenoid valve 23. A third liquid level sensor 25 is installed on one side and the bottom of the heat storage mechanism 13. A second temperature sensor 26 is installed on the other side of the heat storage mechanism 13. One end of the third solenoid valve 19 is sealed and connected to the bottom of the heat exchange mechanism 12. One end of the liquid delivery pipe 2 is sealed and connected to the other end of the third solenoid valve 19. The other end of the liquid delivery pipe 2 is sealed and connected to the top of the heat storage mechanism 13. The detection end of the third liquid level sensor 25 is located inside the heat storage mechanism 13. Through the combination of the liquid storage mechanism 11, the heat exchange mechanism 12 and the heat storage mechanism 13 arranged sequentially from top to bottom on the mounting frame 1, the liquid inside the liquid storage mechanism 11, the heat exchange mechanism 12 and the heat storage mechanism 13 can be automatically discharged, avoiding the need to use a suction pump to suck the liquid inside, thereby improving the energy-saving effect of the boiler energy-saving device during use.

[0022] For details, see Figure 1 The heat exchange mechanism 12 is equipped with a heat exchange tube 3. One end of the heat exchange tube 3 is sealed and connected to the air inlet pipe 31, and the other end of the heat exchange tube 3 is sealed and connected to the air outlet pipe 32. Steam enters the heat exchange tube 3 from the air inlet pipe 31 and is discharged from the air outlet pipe 32.

[0023] Further, see Figure 3The first temperature sensor 22, the second temperature sensor 26, the first liquid level sensor 16, the second liquid level sensor 21, the third liquid level sensor 25, the first solenoid valve 14, the second solenoid valve 17, the third solenoid valve 19, and the fourth solenoid valve 23 are electrically connected to the controller 27 via wires. When the liquid temperature in the heat exchange mechanism 12 reaches the detection range of the first temperature sensor 22, the controller 27 will first control the third solenoid valve 19 to open. At this time, the liquid in the heat exchange mechanism 12 will flow into the interior of the heat energy storage mechanism 13 through the liquid delivery pipe 2. When the liquid level in the heat exchange mechanism 12 reaches the detection range of the second liquid level sensor 21 installed at the bottom, the controller 27 will control the third solenoid valve 19 to close and control the second solenoid valve 17 to open. At this time, the liquid in the liquid storage mechanism 11 will flow into the interior of the heat exchange mechanism 12 through the liquid guide pipe 18. When the liquid level in the heat exchange mechanism 12 reaches the detection range of the second liquid level sensor 21 above the heat exchange mechanism 12... When the liquid level in the storage mechanism 11 reaches the detection range of the bottom first liquid level sensor 16, the controller 27 controls the first solenoid valve 14 to open, allowing the liquid in the supply pipe 15 to enter the storage mechanism 11. When the liquid level in the storage mechanism 11 reaches the detection range of the top first liquid level sensor 16, the controller 27 controls the first solenoid valve 14 to close. When the liquid level in the thermal energy storage mechanism 13 reaches the top third liquid level sensor 25, the controller 27 controls the fourth solenoid valve 23 to open, allowing the liquid in the thermal energy storage mechanism 13 to be discharged from the drain pipe 24. When the liquid level in the thermal energy storage mechanism 13 reaches the detection range of the bottom third liquid level sensor 25, the controller 27 controls the fourth solenoid valve 23 to close. This achieves automatic replacement and addition of appropriate amounts of liquid during the use of the boiler energy-saving device, improving the convenience of using the boiler energy-saving device.

[0024] In addition, all components designed in this utility model are general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.

[0025] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A boiler energy-saving device for recovering steam condensate, comprising a mounting frame (1), characterized in that, The mounting bracket (1) is equipped with a liquid storage mechanism (11), a heat exchange mechanism (12), and a thermal energy storage mechanism (13) sequentially from top to bottom. The top of the liquid storage mechanism (11) is connected to a liquid supply pipe (15) via a first solenoid valve (14). A first liquid level sensor (16) is installed on one side and at the bottom of the liquid storage mechanism (11). The top of the heat exchange mechanism (12) is connected to a liquid guide pipe (18) via a second solenoid valve (17). The bottom of the heat exchange mechanism (12) is connected to a third solenoid valve (19). The heat exchange mechanism (12) is connected to an infusion tube (2). A second liquid level sensor (21) is installed on one side and at the bottom of the heat exchange mechanism (12). A first temperature sensor (22) is installed on the other side of the heat exchange mechanism (12). A drain pipe (24) is connected to the bottom of the heat energy storage mechanism (13) through a fourth solenoid valve (23). A third liquid level sensor (25) is installed on one side and at the bottom of the heat energy storage mechanism (13). A second temperature sensor (26) is installed on the other side of the heat energy storage mechanism (13).

2. The boiler energy-saving device for recovering steam condensate as described in claim 1, characterized in that, The heat exchange mechanism (12) is equipped with a heat exchange tube (3), one end of which is sealed to an air inlet pipe (31), and the other end of which is sealed to an air outlet pipe (32).

3. The boiler energy-saving device for recovering steam condensate as described in claim 1, characterized in that, One end of the first solenoid valve (14) is sealed and connected to the top of the liquid storage mechanism (11), and the other end of the first solenoid valve (14) is sealed and connected to one end of the liquid supply pipe (15). The detection end of the first liquid level sensor (16) is located inside the liquid storage mechanism (11).

4. The boiler energy-saving device for recovering steam condensate as described in claim 1, characterized in that, One end of the second solenoid valve (17) is sealed and connected to the top of the heat exchange mechanism (12), and the other end of the second solenoid valve (17) is sealed and connected to one end of the liquid guide pipe (18). The other end of the liquid guide pipe (18) is sealed and connected to the bottom of the liquid storage mechanism (11). The detection end of the second liquid level sensor (21) is located inside the heat exchange mechanism (12).

5. A boiler energy-saving device for recovering steam condensate as described in claim 1, characterized in that, One end of the third solenoid valve (19) is sealed and connected to the bottom of the heat exchange mechanism (12), one end of the infusion pipe (2) is sealed and connected to the other end of the third solenoid valve (19), the other end of the infusion pipe (2) is sealed and connected to the top of the thermal energy storage mechanism (13), and the detection end of the third liquid level sensor (25) is located inside the thermal energy storage mechanism (13).

6. A boiler energy-saving device for recovering steam condensate as described in claim 1, characterized in that, The first temperature sensor (22), the second temperature sensor (26), the first liquid level sensor (16), the second liquid level sensor (21), the third liquid level sensor (25), the first solenoid valve (14), the second solenoid valve (17), the third solenoid valve (19), and the fourth solenoid valve (23) are electrically connected to the controller (27) via wires.

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