A device for producing low-pressure superheated steam

Abstract

The utility model relates to the technical field of petroleum chemical industry especially, relate to a kind of production device of low-pressure superheated steam, the production device of low-pressure superheated steam includes, first heating furnace, the first heating furnace top is equipped with second heating furnace, the second heating furnace front end is equipped with exhaust pipe, discharging mechanism, the first heating furnace top is equipped with discharging mechanism, discharging mechanism can dynamically demand stable dosing reagent, both improve scale and corrosion prevention effect and reduce reagent waste, reduce the frequency that personnel contact reagent, purification mechanism, the second heating furnace top is equipped with purification mechanism, purification mechanism can effectively intercept dust, particulate impurities, oil stains and other pollutants in air, avoid its with airflow into heating furnace reduce the wear and tear risk of impurity to internal precision components of equipment;The utility model reaches the effect of energy saving and emission reduction by the cooperation of discharging mechanism and purification mechanism.

Description

Technical Field

[0001] This utility model relates to the field of petrochemical technology, specifically to a low-pressure superheated steam production device. Background Technology

[0002] Domestic and international petrochemical, coal chemical, and fine chemical reactions require high heating temperatures. Heating furnaces are commonly used as key process equipment to raise the temperature of materials to the required chemical reaction temperature. This heating method is characterized by large heat source, stable combustion, easy operation and control, and convenient and flexible use. It is used to convert and recover the huge energy carried by the flue gas after combustion in chemical equipment such as boilers and heating furnaces, and to produce low-pressure superheated steam from medium-pressure deoxygenated water, which achieves energy saving and emission reduction to a certain extent.

[0003] Even with medium-pressure deoxygenated water, scale-forming substances such as calcium and magnesium ions, as well as corrosive components such as carbon dioxide, may still remain. After heating and evaporation, these impurities concentrate and can easily cause scaling or corrosion. Therefore, it is necessary to adjust the water quality by adding chemicals. However, the existing chemical dosing process has accuracy issues. On the one hand, manual adjustment of the dosage relies on experience and is difficult to accurately match real-time changes in water quality. On the other hand, some chemical dosing systems lack sensitive online monitoring and automatic control devices, which may lead to insufficient or excessive dosage of chemicals, affecting the scale and corrosion prevention effect, causing waste, or causing secondary pollution.

[0004] Therefore, we propose a low-pressure superheated steam production device. Utility Model Content

[0005] The purpose of this invention is to provide a low-pressure superheated steam production device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a low-pressure superheated steam production apparatus, comprising:

[0007] A first heating furnace, a second heating furnace is installed on the top of the first heating furnace, and an exhaust pipe is installed at the front end of the second heating furnace;

[0008] The feeding mechanism includes a fixed plate on the top of the first heating furnace and a fixed plate on the outside of the second heating furnace. A sliding groove is provided inside the fixed plate, and a sliding block is slidably installed inside the sliding groove.

[0009] A purification mechanism is installed on the top of the second heating furnace. The purification mechanism includes support columns. The support columns are symmetrically and fixedly connected to the top of the second heating furnace. A fan is fixedly connected to the top of the support columns. Extension plates are fixedly connected to both sides of the fan.

[0010] Preferably, a first flue gas pipe is installed inside the first heating furnace, and a second flue gas pipe is installed inside the second heating furnace. An input pipe and an output pipe are respectively installed at both ends of the first and second flue gas pipes. Waste-heated flue gas is injected into the first and second flue gas pipes through the input pipes. The first flue gas pipe heats the medium-pressure deoxygenated water in the first heating furnace to generate steam. Then, through the cooperation of the second flue gas pipe and the second heating furnace, the steam is heated into superheated steam.

[0011] Preferably, a partition is fixedly connected inside the first heating furnace. A stirring motor is installed at the bottom of the partition, and a stirring rod is installed at the top of the partition. The output end of the stirring motor passes through the interior of the partition and is fixedly connected to the stirring rod. Stirring support rods are symmetrically fixedly connected to the outside of the stirring rod. When the stirring motor operates, it drives the stirring rod and stirring support rods to rotate, accelerating the mixing of the reagent and the medium-pressure deoxygenated water.

[0012] Preferably, the feeding mechanism further includes a positioning clamp fixedly connected to the front end of the sliding block, a discharging box installed on the inner wall of the positioning clamp, a positioning plate fixedly connected to the top of the discharging box, a connecting pipe fixedly connected to the bottom of the discharging box, and a water pump installed at the bottom of the connecting pipe, with the bottom of the water pump connected to the top of the first heating furnace. The storage tank injects the reagent into the discharging box through the transport pipe. As the mass of the reagent added to the discharging box increases, the discharging box slowly moves downwards. The downward movement of the discharging box, due to the action of the positioning plate, pulls the positioning clamp downwards as well, and simultaneously compresses the telescopic rod and spring. Subsequently, the water pump operates, using the connecting pipe to inject the reagent into the first heating furnace.

[0013] Preferably, a fixing ring is installed on the outside of the dispensing box, and the fixing ring is fixedly connected to a fixing plate. A telescopic rod is symmetrically installed on the top of the fixing ring, and a spring is installed on the outside of the telescopic rod. Both the spring and the other end of the telescopic rod are fixedly connected to a positioning clamp. A detector is installed on the outside of the fixing ring, and a reaction plate is installed on the outside of the fixing plate. A transport pipe is fixedly connected to the top of the dispensing box, and a storage box is installed at the other end of the transport pipe. After the dispensing box dispenses the medicine, its weight decreases, and under the action of the spring, the dispensing box returns to its original position. After the dispensing box returns to its original position, the detector installed at the bottom contacts the reaction plate and reacts, thereby transmitting the information to the storage box. The storage box then refills the dispensing box with medicine, achieving the effect of automatic dosing.

[0014] Preferably, the purification mechanism further includes a rotating rod, which is rotatably mounted between the extension plates. A filter barrel is fixedly connected to the outside of the rotating rod. A rotating motor is mounted at one end of the rotating rod, and the output end of the rotating motor is fixedly connected to the rotating rod. A flexible hose is installed on the back of the fan, and the other end of the flexible hose is connected to a second heating furnace. A collection box is installed on the top of the second heating furnace. When the fan operates, it draws in air. When the rotating motor operates, it drives the rotating rod to rotate. The rotation of the rotating rod drives the filter barrel fixedly connected to the outside to rotate. The rotating filter barrel absorbs air and scrapes off dust and impurities remaining on the outer surface, which fall into the collection box.

[0015] Preferably, a control panel is installed on the outside of the first heating furnace, and the rotating motor is electrically controlled and connected by the control panel.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: The combination of the fixed plate, sliding groove, sliding block, positioning clamp, discharging box, positioning plate, connecting pipe, and water pump enables dynamic and stable addition of chemicals, avoiding over- or under-dosing due to manual experience. This improves the anti-scaling and anti-corrosion effect, reduces chemical waste, decreases the frequency of personnel contact with chemicals, and ensures safety. The combination of the support column, fan, extension plate, rotating rod, filter barrel, rotating motor, hose, and recycling box effectively traps dust, particulate impurities, oil, and other pollutants in the air, preventing them from entering the heating furnace with the airflow. This reduces the risk of wear on the precision components inside the equipment, prevents chemical reactions between pollutants and high-temperature components inside the furnace, reduces corrosion risks, and extends the service life of the equipment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0019] Figure 3 This is a schematic diagram of the feeding mechanism of this utility model;

[0020] Figure 4 This is a schematic diagram of the purification mechanism of this utility model.

[0021] In the diagram: 1. First heating furnace; 2. Second heating furnace; 3. Exhaust pipe; 4. First flue gas pipe; 5. Second flue gas pipe; 6. Input pipe; 7. Output pipe; 8. Baffle plate; 9. Stirring motor; 10. Stirring rod; 11. Stirring support rod; 12. Fixing plate; 13. Sliding groove; 14. Sliding block; 15. Positioning clamp; 16. Discharge box; 17. Positioning plate; 18. Connecting pipe; 19. Water pump; 20. Fixing ring; 21. Telescopic rod; 22. Spring; 23. Detector; 24. Reaction plate; 25. Transport pipe; 26. Storage box; 27. Support column; 28. Fan; 29. ​​Extension plate; 30. Rotating rod; 31. Filter barrel; 32. Rotating motor; 33. Hose; 34. Recovery box; 35. Control panel. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-4 A low-pressure superheated steam production apparatus, comprising:

[0024] A first heating furnace 1, a second heating furnace 2 is installed on the top of the first heating furnace 1, and an exhaust pipe 3 is installed at the front end of the second heating furnace 2;

[0025] The feeding mechanism includes a fixed plate 12 installed on the top of the first heating furnace 1 and a fixed plate 12 installed on the outside of the second heating furnace 2. A sliding groove 13 is provided inside the fixed plate 12, and a sliding block 14 is slidably installed inside the sliding groove 13.

[0026] A purification mechanism is installed on the top of the second heating furnace 2. The purification mechanism includes support columns 27. The support columns 27 are symmetrically fixedly connected to the top of the second heating furnace 2. A fan 28 is fixedly connected to the top of the support columns 27. Extension plates 29 are fixedly connected to both sides of the fan 28.

[0027] Please see Figure 1-4The first heating furnace 1 is equipped with a first flue gas pipe 4, and the second heating furnace 2 is equipped with a second flue gas pipe 5. An input pipe 6 and an output pipe 7 are respectively installed at both ends of the first flue gas pipe 4 and the second flue gas pipe 5. Waste-heated flue gas is injected into the first flue gas pipe 4 and the second flue gas pipe 5 through the input pipe 6. The first flue gas pipe 4 heats the medium-pressure deoxygenated water in the first heating furnace 1 to generate steam. Then, through the cooperation of the second flue gas pipe 5 and the second heating furnace 2, the steam is heated into superheated steam.

[0028] Please see Figure 1-4 A partition 8 is fixedly connected inside the first heating furnace 1. A stirring motor 9 is installed at the bottom of the partition 8, and a stirring rod 10 is installed at the top of the partition 8. The output end of the stirring motor 9 passes through the interior of the partition 8 and is fixedly connected to the stirring rod 10. A stirring support rod 11 is symmetrically fixedly connected to the outside of the stirring rod 10. When the stirring motor 9 operates, it drives the stirring rod 10 and the stirring support rod 11 to rotate, accelerating the mixing of the reagent and the medium-pressure deoxygenated water.

[0029] Please see Figure 1-4 The feeding mechanism further includes a positioning clamp 15 fixedly connected to the front end of the sliding block 14, a discharging box 16 installed on the inner wall of the positioning clamp 15, a positioning plate 17 fixedly connected to the top of the discharging box 16, a connecting pipe 18 fixedly connected to the bottom of the discharging box 16, and a water pump 19 installed at the bottom of the connecting pipe 18, with the bottom of the water pump 19 connected to the top of the first heating furnace 1. The storage tank 26 injects the medicine into the discharging box 16 through the transport pipe 25. As the mass of the medicine added to the discharging box 16 increases, the discharging box 16 slowly moves downward. The downward movement of the discharging box 16 is caused by the positioning plate 17 pulling the positioning clamp 15 downward as well, and simultaneously compressing the telescopic rod 21 and the spring 22. Subsequently, the water pump 19 operates to inject the medicine into the first heating furnace 1 through the connecting pipe 18.

[0030] Please see Figure 1-4A fixing ring 20 is installed on the outside of the dispensing box 16, and the fixing ring 20 is fixedly connected to the fixing plate 12. A telescopic rod 21 is symmetrically installed on the top of the fixing ring 20. A spring 22 is installed on the outside of the telescopic rod 21, and both the spring 22 and the other end of the telescopic rod 21 are fixedly connected to the positioning clamp 15. A detector 23 is installed on the outside of the fixing ring 20, and a reaction plate 24 is installed on the outside of the fixing plate 12. A transport pipe 25 is fixedly connected to the top of the dispensing box 16, and a storage box 26 is installed at the other end of the transport pipe 25. After the dispensing box 16 dispenses the medicine, its weight decreases, and under the action of the spring 22, the dispensing box 16 returns to its original position. After returning to its original position, the detector 23 installed at the bottom contacts and reacts with the reaction plate 24, thereby transmitting the information to the storage box 26. The storage box 26 then adds medicine to the dispensing box 16 again, achieving the effect of automatic medicine addition.

[0031] Please see Figure 1-4 The purification mechanism also includes a rotating rod 30, which is rotatably mounted between the extension plates 29. A filter barrel 31 is fixedly connected to the outside of the rotating rod 30. A rotating motor 32 is mounted on one end of the rotating rod 30, and the output end of the rotating motor 32 is fixedly connected to the rotating rod 30. A flexible hose 33 is mounted on the back of the fan 28, and the other end of the flexible hose 33 is connected to the second heating furnace 2. A collection box 34 is mounted on the top of the second heating furnace 2. When the fan 28 runs, it draws in air. When the rotating motor 32 runs, it drives the rotating rod 30 to rotate. The rotation of the rotating rod 30 drives the filter barrel 31 fixedly connected to the outside to rotate. The rotation of the filter barrel 31 absorbs air and scrapes off the dust and impurities remaining on the outer wall surface, which fall into the collection box 34.

[0032] Please see Figure 1-4 The first heating furnace 1 has a control panel 35 installed on its outer side, and the rotating motor 32 is electrically controlled and connected to the control panel 35.

[0033] Working Principle: When this device is needed, the waste heat flue gas is first injected into the first flue gas pipe 4 and the second flue gas pipe 5 through the input pipe 6. The first flue gas pipe 4 heats the medium-pressure deoxygenated water in the first heating furnace 1 to generate steam. Then, through the cooperation of the second flue gas pipe 5 and the second heating furnace 2, the steam is heated into superheated steam. When it is necessary to add chemicals to the medium-pressure deoxygenated water, the storage tank 26 first injects the chemicals into the discharge tank 16 through the transport pipe 25. As the mass of chemicals added to the discharge tank 16 increases, the discharge tank 16 slowly moves downward. The downward movement of the discharge tank 16 is caused by the positioning plate 17 pulling the positioning clamp 15 downward as well. At the same time, the downward movement compresses the telescopic rod 21 and the spring 22. Subsequently, the water pump 19 runs and injects the chemicals into the first heating furnace 1 through the connecting pipe 18. The stirring motor 9 runs, driving the stirring rod 10 and the stirring support rod 11 to rotate, accelerating the mixing of the chemicals and the medium-pressure deoxygenated water. As the discharging tank 16 becomes lighter after discharging the reagent, it returns to its original position under the action of spring 22. After returning to its original position, the detector 23 installed at the bottom contacts the reaction plate 24 and reacts, thereby transmitting the information to the storage tank 26. The storage tank 26 then adds reagent to the discharging tank 16 again, achieving the effect of automatic reagent addition. After the device is used, the fan 28 and the rotating motor 32 are started. The fan 28 draws in air, and the rotating motor 32 drives the rotating rod 30 to rotate. The rotation of the rotating rod 30 drives the filter barrel 31 fixedly connected to the outside to rotate. The rotating filter barrel 31 absorbs air and scrapes off the dust and impurities remaining on the outer wall surface, which fall into the recovery box 34 to prevent impurities from entering the heating furnace and increasing the risk of equipment wear.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[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 device for producing low-pressure superheated steam, characterized in that, include: A first heating furnace (1) is installed on the top of the first heating furnace (1) and a second heating furnace (2) is installed at the front end of the second heating furnace (2); The feeding mechanism is installed on the top of the first heating furnace (1). The feeding mechanism includes a fixed plate (12). The fixed plate (12) is installed on the outside of the second heating furnace (2). A sliding groove (13) is opened inside the fixed plate (12). A sliding block (14) is slidably installed inside the sliding groove (13). Purification mechanism: A purification mechanism is installed on the top of the second heating furnace (2). The purification mechanism includes a support column (27). The support column (27) is symmetrically fixedly connected to the top of the second heating furnace (2). A fan (28) is fixedly connected to the top of the support column (27). Extension plates (29) are fixedly connected to both sides of the fan (28).

2. A device for producing low-pressure superheated steam according to claim 1, characterized in that: The first heating furnace (1) is equipped with a first flue gas pipe (4), and the second heating furnace (2) is equipped with a second flue gas pipe (5). The first flue gas pipe (4) and the second flue gas pipe (5) are respectively equipped with an input pipe (6) and an output pipe (7) at both ends.

3. A device for producing low-pressure superheated steam according to claim 1, characterized in that: A partition (8) is fixedly connected inside the first heating furnace (1). A stirring motor (9) is installed at the bottom of the partition (8). A stirring rod (10) is installed at the top of the partition (8). The output end of the stirring motor (9) passes through the interior of the partition (8) and is fixedly connected to the stirring rod (10). A stirring support rod (11) is symmetrically fixedly connected to the outside of the stirring rod (10).

4. A device for producing low-pressure superheated steam according to claim 1, characterized in that: The feeding mechanism further includes a positioning clamp (15) fixedly connected to the front end of the sliding block (14), a discharge box (16) installed on the inner wall of the positioning clamp (15), a positioning plate (17) fixedly connected to the top of the discharge box (16), a connecting pipe (18) fixedly connected to the bottom of the discharge box (16), a water pump (19) installed at the bottom of the connecting pipe (18), and the bottom of the water pump (19) connected to the top of the first heating furnace (1).

5. A device for producing low-pressure superheated steam according to claim 4, characterized in that: A fixing ring (20) is installed on the outside of the drug discharge box (16), and the fixing ring (20) is fixedly connected to the fixing plate (12). A telescopic rod (21) is symmetrically installed on the top of the fixing ring (20). A spring (22) is installed on the outside of the telescopic rod (21), and the other end of the spring (22) and the telescopic rod (21) are fixedly connected to the positioning clamp (15). A detector (23) is installed on the outside of the fixing ring (20), and a reaction plate (24) is installed on the outside of the fixing plate (12). A transport pipe (25) is fixedly connected to the top of the drug discharge box (16), and a storage box (26) is installed on the other end of the transport pipe (25).

6. A device for producing low-pressure superheated steam according to claim 1, characterized in that: The purification mechanism also includes a rotating rod (30), which is rotatably installed between the extension plates (29). A filter barrel (31) is fixedly connected to the outside of the rotating rod (30). A rotating motor (32) is installed at one end of the rotating rod (30), and the output end of the rotating motor (32) is fixedly connected to the rotating rod (30). A flexible hose (33) is installed on the back of the fan (28), and the other end of the flexible hose (33) is connected to the second heating furnace (2). A recycling box (34) is installed on the top of the second heating furnace (2).

7. The low-pressure superheated steam production apparatus according to claim 1, characterized in that: The first heating furnace (1) is equipped with a control panel (35) on its outside, and the rotating motor (32) is electrically controlled and connected by the control panel (35).

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