Novel air door air supply heating device of steam superheater

Abstract

The utility model belongs to the technical field of heat energy recycling and reusing, and discloses a novel steam superheater air door air supply heating device which comprises a machine frame, a radiator condensate cover is fixedly arranged at the top end of the machine frame, and a control box is fixedly arranged at the top end of the radiator condensate cover. A fan is fixedly arranged on the left side of the top end of the radiator condensate cover, an air pipe is fixedly arranged in the rack, an anti-backflow assembly is further arranged in the air pipe, the anti-backflow assembly comprises a communicating pipe penetrating through the air pipe, the communicating pipe is communicated with the output end of the fan, a baffle is rotationally arranged at the outlet end of the communicating pipe, and the baffle is fixedly arranged on the rack. A heat source of process condensate which cannot be used by the device is fully recovered through the condensate cover of the radiator and the fan, the unit consumption of natural gas of the device is reduced, the return water temperature of circulating water is reduced, the conformance of a water cooling tower is reduced, the product competitiveness is improved, meanwhile, the structural design of an anti-backflow assembly is added, and backflow gas generated after the fan stops working can be avoided.

Description

Technical Field

[0001] This utility model belongs to the field of heat energy recovery and reuse technology, specifically a new type of steam superheater damper air supply heating device. Background Technology

[0002] Styrene is an important organic chemical raw material, mainly used in the production of polystyrene, ABS resin, SAN resin, etc. However, the production process generates a large amount of process condensate, with a temperature of around 75℃ and a flow rate of approximately 160 t / h. Most companies simply incorporate this condensate into the circulating water return system as makeup water, without further recycling. Furthermore, because the condensate temperature is 30-35℃ higher than the circulating water, its entry into the circulating water tank can increase the temperature of the incoming circulating water, thus increasing the load on the cooling tower.

[0003] This phenomenon exists primarily because the process condensate contains relatively low amounts of heat, requiring additional equipment investment for its recovery and reuse. Furthermore, since the process condensate is a stripping condensate, fluctuations in unit production can cause hydrocarbon levels in the condensate to exceed standards. Therefore, the process condensate cannot be used as deionized water in a pure water system. In conclusion, for convenience and speed, most companies typically choose to discharge this stream of process condensate into the circulating water return as makeup water for one stream of the circulating water system.

[0004] However, this practice not only wastes a significant amount of energy but also increases the load on the cooling tower, leading to increased energy consumption. Although the process condensate has a low calorific value, its large volume means it still possesses considerable heat recovery value. If it can be recovered and utilized, it can not only reduce natural gas consumption in the steam superheater but also lower production costs for the enterprise. To address these issues, our company proposes a new high-efficiency technology research and application device for a dual-radiation furnace, specifically for heating the burner inlet air of a steam superheater to improve the inlet air temperature.

[0005] Therefore, a novel steam superheater damper air supply heating device is proposed to address the above problems. Utility Model Content

[0006] To address the problems mentioned in the background art, this utility model provides a novel steam superheater damper air supply heating device, which solves the problem that the temperature of the condensate in the directly discharged circulating water cannot be recovered and utilized.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a novel steam superheater damper air supply heating device, comprising a frame, a radiator condensate cover fixedly mounted on the top of the frame, a control box fixedly mounted on the top of the radiator condensate cover, a fan fixedly mounted on the left side of the top of the radiator condensate cover, and an air duct fixedly mounted inside the frame, the air duct further comprising...

[0008] The anti-backflow assembly includes a connecting pipe 1 that passes through the air duct and is connected to the output end of the fan. A baffle is rotatably provided at the outlet end of the connecting pipe 1. A connecting pipe 2 that is connected to the air duct is fixedly provided on the outside of the connecting pipe 1. A spherical filter screen is slidably provided inside the connecting pipe 2.

[0009] Preferably, a fixed shaft is fixedly provided on the outer side of the baffle, a traction rope is sleeved on the outer side of the fixed shaft, and a counterweight is fixedly provided on the other end of the traction rope.

[0010] Preferably, a spring is fixedly provided at the bottom end of the counterweight and fixedly provided with the connecting pipe.

[0011] Preferably, a pulley is slidably provided on the outer side of the traction rope, and a rotating shaft fixedly provided inside the pulley is rotatably provided with the connecting pipe.

[0012] Preferably, the top of the spherical filter screen is provided with a groove, and a guide block is fixedly provided inside the groove of the spherical filter screen.

[0013] Preferably, an adjusting screw is passed through the interior of the guide block and is rotatably configured with the connecting pipe, and is spirally configured with the guide block.

[0014] Preferably, the condensate shield of the radiator is provided with heat dissipation fins with through-tubes.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model fully recovers the heat source of the process condensate that cannot be used by the device through the condensate cover of the radiator and the fan, which reduces the unit consumption of natural gas of the device, reduces the return water temperature of the circulating water, reduces the cooling tower temperature, and enhances the product competitiveness. At the same time, the addition of the anti-backflow component structure design can prevent the gas from flowing back after the fan stops working.

[0017] 2. This utility model not only reduces the unit natural gas consumption of the device but also reduces the cooling tower load, enhancing product competitiveness and significantly lowering the production cost of the device. This utility model patent reduces the production cost of the device without compromising its safety operating coefficient, thus achieving the expected results. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the installation structure of the air duct of this utility model;

[0020] Figure 3 This is a schematic diagram of the installation structure of the anti-backflow component of this utility model;

[0021] Figure 4 This is a schematic diagram of the installation structure of the rotating shaft of this utility model;

[0022] Figure 5 This is a schematic diagram of the installation structure of the spherical filter screen of this utility model.

[0023] In the diagram: 1. Frame; 2. Radiator condensate cover; 3. Control box; 4. Fan; 5. Air duct;

[0024] 6. Anti-backflow assembly; 61. Connecting pipe one; 62. Baffle; 63. Fixed shaft; 64. Traction rope; 65. Rotating shaft; 66. Pulley; 67. Counterweight; 68. Spring;

[0025] 7. Connecting pipe 2; 8. Spherical filter screen; 9. Adjusting screw; 10. Guide block. Detailed Implementation

[0026] 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.

[0027] The following describes an embodiment of this utility model based on its overall structure.

[0028] like Figures 1 to 5 As shown, this utility model provides a novel steam superheater damper air supply heating device, including a frame 1. A radiator condensate cover 2 is fixedly installed at the top of the frame 1, through which heat exchange occurs. A control box 3 is fixedly installed at the top of the radiator condensate cover 2, and a fan 4 is fixedly installed on the left side of the top of the radiator condensate cover 2. The fan 4 is controlled by the control box 3. An air duct 5 is fixedly installed inside the frame 1, and the air duct 5 also includes...

[0029] The anti-backflow component 6 includes a connecting pipe 61 that passes through the air duct 5 and is connected to the output end of the fan 4. A baffle 62 is rotatably installed at the outlet end of the connecting pipe 61. The baffle 62 is flipped and closed to seal the air outlet and prevent backflow. A connecting pipe 7 connected to the air duct 5 is fixedly installed on the outside of the connecting pipe 61. A spherical filter 8 is slidably installed inside the connecting pipe 7. The spherical filter 8 can fit more closely to the pipe connection for filtration.

[0030] In a further embodiment, a fixed shaft 63 is fixedly provided on the outer side of the baffle 62, and a traction rope 64 is sleeved on the outer side of the fixed shaft 63. A counterweight 67 is fixedly provided at the other end of the traction rope 64. The counterweight 67 is lowered and pulls the traction rope 64 to drive the baffle 62 to rotate and close at the air outlet of the connecting pipe 61.

[0031] A spring 68 is fixedly installed at the bottom of the counterweight 67 and is fixedly installed with the connecting pipe 61. The spring 68 can quickly reset the counterweight 67 by pulling it.

[0032] A pulley 66 is slidably provided on the outer side of the traction rope 64. The pulley 66 has a rotating shaft 65 fixedly provided inside it and connected to the connecting pipe 61. The traction rope 64 slides on the outer side of the pulley 66 structure, making the movement smoother.

[0033] The top of the spherical filter screen 8 is provided with a groove, and a guide block 10 is fixedly installed inside the groove of the spherical filter screen 8. The spherical filter screen 8 moves through the guide block 10.

[0034] An adjusting screw 9, which is rotatably connected to the connecting pipe 7, runs through the interior of the guide block 10 and is spirally connected to the guide block 10. Rotating the adjusting screw 9 controls the guide block 10 to move the spherical filter screen 8.

[0035] The condensate cover 2 of the radiator is equipped with heat dissipation fins with through-tubes, which can dissipate heat from the condensate.

[0036] Working principle and process of a new type of steam superheater furnace damper air supply heating device:

[0037] The condensate produced using the styrene plant's own process has a pressure of 0.8 MPaG, a temperature of 75°C, and a flow rate of 160 m³ / h. 3 / h. By installing a condensate radiator at the inlet of the styrene steam superheater, the heat in the process condensate is used to preheat the air flowing through the inlet of the steam superheater, thereby increasing the initial temperature of the incoming air. When the steam reaches the same temperature in the superheater, the natural gas consumption is reduced, thus achieving the goal of energy saving and consumption reduction. The core of the condensate radiator is an alloy heat sink, which has high heat transfer efficiency, corrosion resistance, and low failure rate. The advantages of this condensate radiator are simple structure, easy maintenance, high heat transfer efficiency, low failure rate, and certain universality of repair parts. It has low investment and high return. During the air supply process, the air force of the fan 4 enters the anti-backflow component 6 through the condensate cover 2 of the radiator, and is supplied through the connecting pipe 1 61 and the connecting pipe 2 7. The air blows open the baffle 62, and the baffle 62 drives the traction rope 64 to move through the fixed shaft 63. It slides outside the pulley 66 outside the rotating shaft 65, pulling up the counterweight 67. At the same time, the spring 68 is stretched. After the air supply is completed, the spring 68 pulls the traction baffle 62 to reset and close the connecting pipe 1 61.

[0038] 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.

[0039] 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 new type of steam superheater furnace damper air supply heating device, comprising a rack (1), characterized in that: The top end of the rack (1) is fixedly provided with a radiator condensate cover (2), the top end of the radiator condensate cover (2) is fixedly provided with a control box (3), the top end left side of the radiator condensate cover (2) is fixedly provided with a fan (4), the inside of the rack (1) is fixedly provided with a wind pipe (5), the inside of the wind pipe (5) further comprises An anti-backflow assembly (6) is arranged in the wind pipe (5), the anti-backflow assembly (6) comprises a communication pipe one (61) penetrating through the wind pipe (5), and the communication pipe one (61) is communicated with the output end of the fan (4), the outlet end of the communication pipe one (61) is rotatably provided with a baffle (62), the outside of the communication pipe one (61) is fixedly provided with a communication pipe two (7) communicated with the wind pipe (5), and the inside of the communication pipe two (7) is slidably provided with a spherical filter screen (8).

2. A new type of steam superheater furnace air door air supply heating device according to claim 1, characterized in that: The outside of the baffle (62) is fixedly provided with a fixed shaft (63), the outside of the fixed shaft (63) is sleeved with a traction rope (64), and the other end of the traction rope (64) is fixedly provided with a counterweight (67).

3. A new type of steam superheater furnace air door air supply heating device according to claim 2, characterized in that: The bottom end of the counterweight (67) is fixedly provided with a spring (68) fixedly arranged with the communication pipe one (61).

4. A new type of steam superheater furnace air door air supply heating device according to claim 2, characterized in that: The outside of the traction rope (64) is slidably provided with a pulley (66), and the inside of the pulley (66) is rotatably provided with a rotating shaft (65) fixedly arranged with the communication pipe one (61).

5. A new type of steam superheater furnace air door air supply heating device according to claim 1, characterized in that: The top end of the spherical filter screen (8) is provided with a sliding groove, and the inside of the sliding groove of the spherical filter screen (8) is fixedly provided with a guide block (10).

6. A new type of steam superheater furnace damper air supply heating device according to claim 5, characterized in that: The inside of the guide block (10) is penetrated by an adjusting screw rod (9) rotatably arranged with the communication pipe two (7) and spirally arranged with the guide block (10).

7. A new type of steam superheater furnace damper air supply heating device according to claim 1, characterized in that: The inside of the radiator condensate cover (2) is provided with a through-pipe heat dissipation fin.

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