Steam-water separator of sulfuric acid pre-conversion waste heat boiler

Abstract

The invention relates to the technical field of heat energy engineering and heat exchange, in particular to a steam-water separator of a sulfuric acid pre-conversion waste heat boiler, which comprises a separation frame, an air inlet is formed in the left side of the upper part of the separation frame, an air outlet is formed in the right side of the upper part of the separation frame, and an air cavity is formed in the middle position in the separation frame and is communicated with the air outlet; a connecting seat is connected to the middle position in the separating frame, a gliding surface is arranged on the connecting seat and is close to the bottom of the air cavity, and a connecting frame is connected to the bottom of the connecting seat. Multi-stage gas-liquid separation is achieved through the synergistic effect of the vortex plate, the spiral plate and the I-shaped liquid removal plate, liquid drops are thrown to the inner wall of the connecting frame under the action of centrifugal force through vortex motion formed by the vortex plate, the spiral plate guides the liquid drops to spirally descend along the inner wall and finally is discharged through a funnel structure, the liquid removal plate further locks the residual liquid drops, and the liquid removal effect is improved. The purity of the discharged gas is ensured, the separation efficiency is remarkably improved, and the high requirement of industrial production on the gas quality is met.

Description

Technical Field

[0001] The invention relates to the field of thermal energy engineering and heat exchange technology, and in particular to a steam-water separator of a sulfuric acid pre-conversion waste heat boiler. Background Art

[0002] In industrial production, sulfuric acid pre-conversion waste heat boiler is an important heat recovery equipment, which is mainly used to recover the waste heat of high-temperature flue gas generated in the sulfuric acid production process and convert it into steam or hot water for production use. However, high-temperature flue gas usually contains a large amount of water vapor and other impurities. If it directly enters the subsequent equipment, it will not only reduce the efficiency of thermal energy utilization, but also may cause corrosion and damage to the equipment. Traditional steam-water separators mostly use simple gravity separation or baffle separation methods, with low separation efficiency, and it is difficult to meet the high requirements of modern industrial production for gas purity. In addition, traditional separators are prone to pressure loss or liquid freezing under high pressure or low temperature conditions, affecting the stable operation of the equipment.

[0003] In order to solve these problems, there is an urgent need for an efficient, stable and adaptable steam-water separator that can achieve efficient gas-liquid separation under complex working conditions and has pressure regulation and antifreeze functions to meet the efficient operation requirements of sulfuric acid pre-conversion waste heat boilers. Therefore, a steam-water separator for sulfuric acid pre-conversion waste heat boilers is now developed to address the above problems. Summary of the invention

[0004] In order to overcome the shortcomings of the existing devices, the present invention provides a steam-water separator for a sulfuric acid pre-conversion waste heat boiler.

[0005] The technical solution of the present invention is: a steam-water separator for a sulfuric acid pre-conversion waste heat boiler, comprising a separation frame, an air inlet is opened on the left side of the upper part of the separation frame, an air outlet is opened on the right side of the upper part of the separation frame, an air cavity is arranged in the middle position inside the separation frame, the air cavity is communicated with the air outlet, a connecting port is arranged at the lower part of the air cavity, a connecting seat is connected to the middle position inside the separation frame, a sliding surface is arranged on the connecting seat, the sliding surface is close to the bottom of the air cavity, a connecting frame is connected to the bottom of the connecting seat, the connecting frame is located inside the separation frame, and the connecting frame The lower side is threadedly connected to a lower base, a liquid outlet is provided at the bottom of the lower base, an air outlet is threadedly connected to the connection port, a narrow opening is provided at the upper middle part of the air outlet for increasing the air flow speed, a vortex plate is rotatably connected to the upper part of the air outlet, the bottom of the vortex plate is in contact with the lower sliding surface, a spiral plate is connected between the air outlet and the connecting frame, the spiral plate is used to guide the air flow to fit the movement of the connecting frame, the bottom of the air outlet is connected to a lower base plate, a liquid removal plate is installed on the lower base plate by bolts, and the liquid removal plate is located inside the air outlet.

[0006] In addition, it is particularly preferred that a limiting member is further included, and the limiting member is arranged at the lower part of the separation frame, and three sliding rods are rotatably connected to the limiting member, and the sliding rods are each provided with a bayonet, and the sliding rods are each slidably connected to an extension rod, and the extension rods are each slidably connected to a latch, and the latch has a power-assisting groove, and the latch can be engaged with the adjacent bayonet, and a spring is connected between the latch and the adjacent extension rod.

[0007] In addition, it is particularly preferred that a pressure sensor is also included, the pressure sensor is installed on the spiral plate, an electric push rod is installed on the left side of the lower base, a pressure relief piece is connected to the telescopic end of the electric push rod, a slide groove is opened on the left side of the lower base, the pressure relief piece is slidably connected to the slide groove, a pressure relief port is connected to the lower left side of the lower base, and the pressure relief port is slidably connected to the pressure relief piece.

[0008] In addition, it is particularly preferred that a mounting plate is further included, two mounting plates are mounted on the connecting frame, the mounting plates are connected by bolts, and heating tubes are connected to the inner sides of the mounting plates.

[0009] In addition, it is particularly preferred that a rib plate is further included, wherein the rib plate is connected between the spiral plate and the connecting frame, and the rib plate is used to enhance the stability of the spiral plate.

[0010] In addition, it is particularly preferred that a protective member is further included, and a plurality of the protective members are installed on the lower base plate, and the protective member is used to prevent the mounting screws of the liquid removal plate from being damaged.

[0011] In addition, it is particularly preferred that the bottom of the connecting frame is a funnel structure.

[0012] Furthermore, it is particularly preferred that a first sealing ring is provided inside the lower base.

[0013] In addition, it is particularly preferred that a second sealing ring is connected to the top of the punching tube.

[0014] In addition, it is particularly preferred that the liquid removal plate is an I-shaped structure, which can further lock and retain the liquid.

[0015] By adopting the above technical solution, the advantages of the present invention are:

[0016] 1. The present invention realizes multi-stage gas-liquid separation through the synergistic effect of the vortex plate, the spiral plate and the I-shaped liquid removal plate. The vortex motion formed by the vortex plate causes the droplets to be thrown toward the inner wall of the connecting frame under the action of centrifugal force. The spiral plate guides the droplets to spiral down along the inner wall and finally be discharged through the funnel structure. The liquid removal plate further locks the residual droplets to ensure the purity of the discharged gas, significantly improves the separation efficiency, and meets the high requirements of industrial production for gas quality.

[0017] 2. The pressure control system composed of a built-in pressure sensor and an electric push rod in the present invention can monitor the internal pressure in real time. When the pressure is too high, the electric push rod automatically pushes the pressure relief part to open the pressure relief port to quickly release excess pressure and avoid damage to the equipment due to excessive pressure. This not only improves the safety of the equipment, but also reduces manual intervention and reduces operation and maintenance costs.

[0018] 3. The present invention adopts modular design, which is easy to disassemble and maintain, prolongs the service life of the equipment, and enables it to adapt to a variety of complex working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0020] Figure 2 It is a schematic diagram of a first partial cross-sectional three-dimensional structure of the present invention.

[0021] Figure 3 It is a schematic diagram of a second partial cross-sectional three-dimensional structure of the present invention.

[0022] Figure 4 It is a schematic diagram of a third partial cross-sectional three-dimensional structure of the present invention.

[0023] Figure 5 It is a schematic diagram of a fourth partial cross-sectional three-dimensional structure of the present invention.

[0024] Figure 6 It is a schematic diagram of a fifth partial cross-sectional three-dimensional structure of the present invention.

[0025] Figure 7 It is a schematic diagram of a sixth partial cross-sectional three-dimensional structure of the present invention.

[0026] Figure 8 It is a schematic diagram of a seventh partial cross-sectional three-dimensional structure of the present invention.

[0027] Fig. 9 It is a schematic diagram of an eighth partial cross-sectional three-dimensional structure of the present invention.

[0028] In the figure: 1. separation frame, 2. air inlet, 3. air outlet, 4. connecting port, 5. connecting seat, 51. lower sliding surface, 52. connecting frame, 6. lower base, 61. first sealing ring, 62. liquid outlet, 7. air outlet tube, 71. second sealing ring, 8. narrow mouth, 9. vortex plate, 10. spiral plate, 11. lower bottom plate, 12. liquid removal plate, 13. limit member, 14. sliding rod, 15. extension rod, 16. bolt, 17. spring, 18. pressure sensor, 19. electric push rod, 20. pressure relief member, 21. slide groove, 22. pressure relief port, 23. mounting plate, 24. heating pipe, 25. rib plate, 26. protective member. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] A steam-water separator for a sulfuric acid pre-conversion waste heat boiler, such as Figure 1-Figure 9As shown, a separation frame 1 is included, an air inlet 2 is opened on the left side of the upper part of the separation frame 1, an air outlet 3 is opened on the right side of the upper part of the separation frame 1, an air cavity is arranged in the middle position inside the separation frame 1, the air cavity is communicated with the air outlet 3, a connecting port 4 is arranged at the lower part of the air cavity, a connecting seat 5 is connected to the middle position inside the separation frame 1, a lower sliding surface 51 is arranged on the connecting seat 5, the lower sliding surface 51 is close to the bottom of the air cavity, a connecting frame 52 is connected to the bottom of the connecting seat 5, the connecting frame 52 is located inside the separation frame 1, the bottom of the connecting frame 52 is a funnel structure, a lower base 6 is threadedly connected to the lower side of the connecting frame 52, and a first sealing ring 61 is arranged inside the lower base 6 , a liquid outlet 62 is provided at the bottom of the lower base 6, a gas outlet 7 is threadedly connected to the connection port 4, a second sealing ring 71 is connected to the top of the gas outlet 7, a narrow opening 8 is provided at the upper middle part of the gas outlet 7 for increasing the air flow speed, a vortex plate 9 is rotatably connected to the upper part of the gas outlet 7, the bottom of the vortex plate 9 is in contact with the lower sliding surface 51, a spiral plate 10 is connected between the gas outlet 7 and the connection frame 52, the spiral plate 10 is used to guide the air flow to fit the connection frame 52 for movement, a lower bottom plate 11 is connected to the bottom of the gas outlet 7, a liquid removal plate 12 is installed on the lower bottom plate 11 by bolts, and the liquid removal plate 12 is an I-shaped structure, which can further The liquid is locked and retained, the liquid removal plate 12 is located inside the air outlet tube 7, a limit piece 13 is arranged at the lower part of the separation frame 1, three sliding rods 14 are rotatably connected to the limit piece 13, the sliding rods 14 are provided with bayonet holes, the sliding rods 14 are slidably connected to extension rods 15, the extension rods 15 are slidably connected to bolts 16, the bolts 16 are provided with power-assisting grooves, the bolts 16 can be engaged with adjacent bayonet holes, springs 17 are connected between the bolts 16 and the adjacent extension rods 15, a pressure sensor 18 is installed on the spiral plate 10, an electric push rod 19 is installed on the left side of the lower base 6, and the electric push rod 19 is telescopic A pressure relief piece 20 is connected to the end, a slide groove 21 is opened on the left side of the lower base 6, the pressure relief piece 20 is slidably connected to the slide groove 21, a pressure relief port 22 is connected to the lower left side of the lower base 6, the pressure relief port 22 is slidably connected to the pressure relief piece 20, two mounting plates 23 are installed on the connecting frame 52, the mounting plates 23 are connected by bolts, the inner sides of the mounting plates 23 are connected to heating pipes 24, a rib plate 25 is connected between the spiral plate 10 and the connecting frame 52, the rib plate 25 is used to enhance the stability of the spiral plate 10, and a plurality of protective members 26 are installed on the lower base plate 11, and the protective members 26 are used to prevent the mounting screws of the liquid removal plate 12 from being damaged.

[0031] It should be noted that the device is first placed according to the installation environment, and the position of the extension rod 15 is adjusted by the bolt 16 to maintain the stability of the device. During the use of the device, the gas containing water vapor enters from the air inlet 2 on the upper part of the separation frame 1, and the gas moves downward along the separation frame 1. At this time, the vortex plate 9 is driven to rotate by the gas movement to form a vortex motion, so that the droplets flow out along the sliding surface 51 under the action of centrifugal force and are thrown to the inner wall of the connecting frame 52. The droplets spiral down along the inner wall of the connecting frame 52 under the guidance of the spiral plate 10, and then slide down to the bottom of the connecting frame 52 with a funnel structure, and finally discharged through the liquid outlet 62 of the lower base 6, and the gas rises through the air outlet tube 7. In the process of the gas moving upward In the process, the retained liquid is locked by the liquid removal plate 12 of the I-shaped structure to ensure the purity of the gas and further separate the residual droplets. The narrow opening 8 in the middle of the outlet tube 7 can accelerate the gas when passing through the outlet tube 7, so that the gas can be quickly discharged through the outlet 3. In this process, the pressure sensor 18 monitors the pressure on the spiral plate 10 in real time. When the pressure is too high, the electric push rod 19 pushes the pressure relief part 20 to open the pressure relief port 22 to stabilize the internal pressure. The heating tube 24 on the mounting plate 23 prevents the liquid from freezing in a low temperature environment. The rib plate 25 enhances the stability of the spiral plate 10. After use, the device can be disassembled as a whole, and the components can be separated by rotation to facilitate maintenance and cleaning.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A steam-water separator for a sulfuric acid pre-conversion waste heat boiler, characterized in that: The invention comprises a separation frame (1), wherein an air inlet (2) is provided on the left upper part of the separation frame (1), an air outlet (3) is provided on the right upper part of the separation frame (1), an air cavity is provided at the middle position inside the separation frame (1), the air cavity is communicated with the air outlet (3), a connection port (4) is provided at the lower part of the air cavity, a connection seat (5) is connected at the middle position inside the separation frame (1), a lower sliding surface (51) is provided on the connection seat (5), the lower sliding surface (51) is close to the bottom of the air cavity, a connection frame (52) is connected to the bottom of the connection seat (5), the connection frame (52) is located inside the separation frame (1), a lower base (6) is threadedly connected to the lower side of the connection frame (52), and the lower base (6) A liquid outlet (62) is provided at the bottom, an air outlet (7) is threadedly connected to the connection port (4), a narrow opening (8) is provided at the upper middle side of the air outlet of the air outlet (7) for increasing the air flow speed, a vortex plate (9) is rotatably connected to the upper part of the air outlet (7), the bottom of the vortex plate (9) is in contact with the lower sliding surface (51), a spiral plate (10) is connected between the air outlet (7) and the connection frame (52), the spiral plate (10) is used to guide the air flow to move in accordance with the connection frame (52), the bottom of the air outlet (7) is connected to a lower bottom plate (11), a liquid removal plate (12) is installed on the lower bottom plate (11) by bolts, and the liquid removal plate (12) is located inside the air outlet (7).

2. The steam-water separator of the sulfuric acid pre-conversion waste heat boiler according to claim 1, characterized in that: The separation frame (1) further comprises a limiting member (13), wherein the limiting member (13) is arranged at the lower part of the separation frame (1), wherein three sliding rods (14) are rotatably connected to the limiting member (13), wherein the sliding rods (14) are provided with bayonet holes, wherein the sliding rods (14) are slidably connected to extension rods (15), wherein the extension rods (15) are slidably connected to clamping bolts (16), wherein the clamping bolts (16) are provided with power-assisting grooves, wherein the clamping bolts (16) are capable of being clamped with adjacent bayonet holes, and wherein springs (17) are connected between the clamping bolts (16) and the adjacent extension rods (15).

3. The steam-water separator of the sulfuric acid pre-conversion waste heat boiler according to claim 2, characterized in that: The invention also comprises a pressure sensor (18), the pressure sensor (18) being installed on the spiral plate (10), an electric push rod (19) being installed on the left side of the lower base (6), a pressure relief member (20) being connected to the telescopic end of the electric push rod (19), a slide groove (21) being opened on the left side inside the lower base (6), the pressure relief member (20) being slidably connected to the slide groove (21), a pressure relief port (22) being connected to the lower left side of the lower base (6), the pressure relief port (22) being slidably connected to the pressure relief member (20).

4. The steam-water separator of the sulfuric acid pre-conversion waste heat boiler according to claim 3, characterized in that: It also includes a mounting plate (23), two mounting plates (23) are mounted on the connection frame (52), the mounting plates (23) are connected by bolts, and the inner sides of the mounting plates (23) are connected to heating pipes (24).

5. The steam-water separator of the sulfuric acid pre-conversion waste heat boiler according to claim 4, characterized in that: It also includes a rib plate (25), which is connected between the spiral plate (10) and the connecting frame (52), and the rib plate (25) is used to enhance the stability of the spiral plate (10).

6. The steam-water separator of the sulfuric acid pre-conversion waste heat boiler according to claim 5, characterized in that: It also includes a protective member (26). A plurality of the protective members (26) are installed on the lower base plate (11). The protective members (26) are used to prevent the mounting screws of the liquid removal plate (12) from being damaged.

7. The steam-water separator of the sulfuric acid pre-conversion waste heat boiler according to claim 1, characterized in that: The bottom of the connecting frame (52) is a funnel structure.

8. The steam-water separator of the sulfuric acid pre-conversion waste heat boiler according to claim 1, characterized in that: A first sealing ring (61) is arranged inside the lower base (6).

9. The steam-water separator of the sulfuric acid pre-conversion waste heat boiler according to claim 1, characterized in that: The top of the gas outlet cylinder (7) is connected with a second sealing ring (71).

10. The steam-water separator of the sulfuric acid pre-conversion waste heat boiler according to claim 1, characterized in that: The liquid removal plate (12) is an I-shaped structure, which can further lock and retain the liquid.

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