CN206929797U - A kind of turbolator air preheater - Google Patents

Abstract

The utility model discloses a spoiler air preheater, which comprises a flue gas channel and an air channel. An air inlet port and an air outlet port are provided, and the air channel is reciprocally intersected and placed in the flue gas channel, wherein the air channel is sequentially provided with an air conditioner, a heater, and a glass tube from the air inlet end to the air outlet end. Air preheating tube, finned air preheating mechanism and spoiler air preheating mechanism; a temperature sensor is arranged inside the outlet end of the flue gas, and an ultrasonic cleaner is arranged in the flue gas channel; the inlet end of the flue gas A soot cleaning port is provided on the outside, and a soot blowing port is provided on the outside of the flue gas outlet. The beneficial effects of the utility model are: it can effectively reduce the dew point corrosion at the outlet end of the flue, and at the same time, it can effectively solve the problem of ash blocking of the air preheater and improve the service life of the air preheater.

Description

A spoiler air preheater

technical field

The utility model relates to the field of pressure vessels, in particular to a spoiler air preheater.

Background technique

As an energy-saving device, the spoiler air preheater is widely used in the tubular heating furnace system in the petrochemical industry, and plays an important role in improving the thermal efficiency of the tubular heating furnace and saving energy. Among them, the spoiler air preheater is common. When the exhaust gas temperature is low (less than 180 degrees Celsius), the temperature of the heat exchange tube wall at the outlet of the flue gas channel is easily lower than the dew point temperature of the flue gas, resulting in Severe low-temperature acid dew point corrosion greatly shortens the service life of the air preheater; in addition, the spoiler air preheater is easy to cause dust blocking during use, and manual soot blowing and water washing are usually used. To achieve a good effect of dust removal, the life of the spoiler air preheater is greatly shortened.

Aiming at the problems in the related technologies, no effective solution has been proposed yet.

Utility model content

Aiming at the problems in the related art, the utility model proposes a spoiler air preheater, which can overcome the above-mentioned technical problems existing in the related art.

The technical scheme of the utility model is achieved in that:

A spoiler air preheater, comprising a flue gas channel and an air channel, the two ends of the flue gas channel are respectively provided with a flue gas inlet port and a flue gas outlet port, and the two ends of the air channel are respectively provided with an air inlet port and the air outlet end, the air passage is reciprocally placed in the flue gas passage, wherein, the air passage is sequentially provided with an air conditioner, a heater, a glass tube air preheating pipe, Finned air preheating mechanism and spoiler air preheating mechanism; a temperature sensor is installed inside the flue gas outlet, an ultrasonic cleaner is installed in the flue gas channel; a dust cleaning device is installed outside the flue gas inlet There is a soot blowing port on the outside of the flue gas outlet.

Further, the air conditioner includes a motor, a rotating shaft and an adjusting plate, the motor is connected to the rotating shaft, and the adjusting plate is fixed on the rotating shaft.

Further, bearings are provided at both ends of the rotating shaft, a fixing hole is provided on the rotating shaft, a positioning center matching the fixing hole is provided on the adjusting plate, and the fixing hole and the positioning center are connected by bolts.

Further, the adjustment plate includes a telescopic plate and a fixed plate, the fixed plate is fixed on the rotating shaft, the telescopic plate is connected to the fixed plate through a telescopic rod, wherein a fixed button is arranged on the telescopic plate , the fixing plate is provided with a fixing groove matched with the fixing button.

Further, the glass tube air preheating tube is made of fluorine boron glass material, the heat exchange tube one of the finned air preheating mechanism is an enamel-coated tube, and the heat exchange tube two of the spoiler air preheating mechanism is carbon steel material.

Further, the soot cleaning port and the soot blowing port are connected by flanges.

Further, the flue gas channel is provided with an anti-vibration partition parallel to the direction of the flue gas flow.

Further, a balanced flow field spoiler is provided at the elbow of the air channel.

Further, the balanced flow field spoiler is composed of a shell and a guide core arranged in the shell, the guide core is composed of several blades and a central support body, and the blades are arranged in the space surrounded by the central support body and the shell Inside.

Further, a controller is provided outside the air inlet end, and the controller is respectively connected to the motor, the air conditioner, the heater, the temperature sensor and the ultrasonic cleaner through cables.

The beneficial effects of the utility model are: by setting the air conditioner, the amount of air entering the air channel can be adjusted and controlled, thereby ensuring that the air preheater enters a small amount of air when it is just started, and improving the preheating time of the air preheater at the initial stage of starting. The thermal effect can reduce the dew point corrosion at the outlet end of the flue; by setting the heater, the air preheater can preheat the inflowing air at the beginning of startup, thereby reducing the dew point corrosion at the outlet end of the flue; by setting the glass tube air preheating tube , finned air preheating mechanism and spoiler air preheating mechanism, so that the preheating effect of the air preheater is better, the preheating efficiency is improved, and the dew point corrosion at the outlet end of the flue is reduced; by setting the temperature sensor, the Better detect the temperature at the outlet end of the flue, so that the heater and air conditioner can be well controlled; by setting up an ultrasonic cleaner, a soot cleaning port and a soot blowing port, ultrasonic waves can be used to remove dust, which can effectively solve the problem of air pollution. The dust blocking problem of the preheater can improve the service life of the air preheater.

In addition, by setting the soot cleaning port and the soot blowing port as a flange connection, it is convenient for the staff to clean the soot and improve work efficiency; by setting the anti-vibration partition, the vibration problem of the air preheater during work is reduced, Then improve the stability of the air preheater; by setting the balance flow field turbulence at the air channel elbow, the flow velocity of the air at the elbow can be accelerated, thereby increasing the rate of air entering the air preheater, reducing The loss of heat improves the heat exchange rate; by setting the controller, the work of each unit can be better controlled and the work efficiency can be improved.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only the present invention. For some embodiments of the present invention, those of ordinary skill in the art can also obtain other drawings based on these drawings on the premise of not paying creative efforts.

Fig. 1 is a schematic structural diagram of a spoiler air preheater according to an embodiment of the present invention;

Fig. 2 is a schematic structural diagram of a spoiler air preheater air conditioner according to an embodiment of the present invention;

Fig. 3 is a schematic structural diagram of the air conditioning plate of the spoiler air preheater according to the embodiment of the present invention;

Fig. 4 is a schematic diagram of the balanced flow field spoiler structure of the spoiler air preheater according to the embodiment of the utility model;

Fig. 5 is a schematic structural view of the balanced flow field spoiler guide core of the spoiler air preheater according to the embodiment of the present utility model.

In the picture:

1. Smoke channel; 2. Air channel; 3. Smoke inlet port; 4. Smoke outlet port; 5. Air inlet port; 6. Air outlet port; 7. Air regulator; 8. Air heater; 9 1. Glass tube air preheating tube; 10. Finned air preheating mechanism; 11. Spoiler air preheating mechanism; 12. Temperature sensor; 13. Ultrasonic cleaner; 14. Soot cleaning port; 15. Soot blowing port; 16. Anti-vibration partition; 17. Balance flow field spoiler; 18. Controller; 91. Glass tube; 101. Heat exchange tube one; 111. Heat exchange tube two; 71. Motor; 72. Rotating shaft; 73. Adjusting plate; 74, bearing; 75, fixed hole; 76, positioning center; 77, telescopic plate; 78, fixed plate; 79, telescopic rod; 710, fixed button; 711, fixed groove; 171, shell; 172, guide core body; 173, blade; 174, central support body.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

According to an embodiment of the utility model, a spoiler air preheater is provided.

As shown in Figures 1 to 5, the spoiler air preheater according to the embodiment of the utility model includes a flue gas channel 1 and an air channel 2, and the two ends of the flue gas channel 1 are respectively provided with a flue gas inlet port 3 and a The flue gas outlet port 4, the two ends of the air channel 2 are respectively provided with an air inlet port 5 and an air outlet port 6, and the air channel 2 is reciprocally intersected and placed in the flue gas channel 1, wherein the air channel 2 is connected from the air From the inlet 5 to the air outlet 6, an air conditioner 7, a heater 8, a glass tube air preheating pipe 9, a finned air preheating mechanism 10 and a spoiler air preheating mechanism 11 are arranged in sequence; the flue gas outlet A temperature sensor 12 is arranged inside the end 4, and an ultrasonic cleaner 13 is arranged in the flue gas channel 1; Mouth 15.

With the help of the above technical solution, by setting the air regulator 7, it is possible to adjust and control the amount of air entering the air passage, so as to ensure that the air preheater enters a small amount of air when it is just started, and improve the preheating of the air preheater at the initial stage of start-up. effect, reducing the dew point corrosion at the outlet end 4 of the flue; by setting the heater 8, the air preheater can preheat the inflowing air at the initial stage of start-up, thereby reducing the dew point corrosion at the outlet end 4 of the flue; by setting the glass tube The air preheating pipe 9, the finned air preheating mechanism 10 and the spoiler air preheating mechanism 11, so that the preheating effect of the air preheater is better, the preheating efficiency is improved, and the pressure of the flue outlet 4 is reduced. Dew point corrosion; by setting the temperature sensor 12, the temperature at the outlet end 4 of the flue can be better detected, so that the heater 8 and the air conditioner 7 can be well controlled; by setting the ultrasonic cleaner 13 and the ash removal port 14 And the soot blowing port 15, so that the ultrasonic wave is used for dust removal, which can effectively solve the problem of dust blocking of the air preheater and improve the service life of the air preheater.

In one implementation, for the above-mentioned air conditioner 7, the air conditioner 7 includes a motor 71, a rotating shaft 73 and an adjusting plate 73, the motor 71 is connected to the rotating shaft 72, and the adjusting plate 73 is fixed on the Rotating shaft 72, so that the amount of air entering the air passage 2 can be better adjusted and controlled, so as to ensure that the air preheater enters a small amount of air when it is just started, improve the preheating effect of the air preheater at the initial stage of start-up, and reduce smoke. Dew point corrosion at the outlet port 4 of the channel.

In one implementation, for the above-mentioned air conditioner 7, bearings 74 are provided at both ends of the rotating shaft 72, a fixing hole 75 is provided on the rotating shaft 72, and a fixing hole 75 is provided on the adjusting plate 73 to match the fixing hole 75. The matching positioning center 76, the fixing hole 75 and the positioning center 76 are connected by bolts.

In one implementation, for the above-mentioned air conditioner 7, the adjustment plate 73 includes a telescopic plate 77 and a fixed plate 78, the fixed plate 78 is fixed on the rotating shaft 72, and the telescopic plate 77 is connected by a telescopic rod 79 It is connected to the fixing plate 78 , wherein, the telescopic plate 77 is provided with a fixing button 710 , and the fixing plate 78 is provided with a fixing groove 711 matched with the fixing button 710 .

In one implementation, for the above-mentioned heat exchange tubes, the glass tube air preheating tube 9 is made of fluorine boron glass material, and the finned air preheating mechanism 10 (the finned air preheating mechanism 10 includes heat exchanging Tube one 101, the outer side of the heat exchange tube one 101 is provided with several fins), the heat exchange tube one 101 is an enamel-coated tube, the spoiler air preheating mechanism 11 (the spoiler air preheating Mechanism 11 includes heat exchange tube two 111, the heat exchange tube two 111 is provided with a number of closely arranged spoilers) The heat exchange tube two 111 is made of carbon steel material, so that the preheating effect of the air preheater is better , improve the preheating efficiency, and reduce the dew point corrosion at the outlet end 4 of the flue.

In one implementation, in order to improve the cleaning efficiency and facilitate the operation of the staff, the cleaning port 14 and the soot blowing port 15 are connected by flanges.

In one implementation, the cavity resonance problem of the air preheater during operation can be reduced, and the stability of the air preheater can be improved, and at the same time, it can eliminate noise. The flue gas channel 1 is provided with a The anti-vibration partition 16 of the flow direction.

In one implementation, in order to increase the flow velocity of the air at the elbow of the air channel, thereby increasing the rate at which the air enters the air heat exchanger, reducing the loss of heat, and increasing the heat exchange rate, the elbow of the air channel 2 is provided with Balance flow field spoiler 17.

In one implementation, for the balanced flow field spoiler 17 mentioned above, the balanced flow field spoiler 17 is composed of a casing 171 and a guiding core 172 arranged in the casing 171, and the guiding core 172 is composed of A plurality of blades 173 and a central support body 174 are formed. The blades 173 are arranged in the space enclosed by the central support body 174 and the housing 171 , and the structure is simple and easy to install.

In one implementation, for the above-mentioned controller 18, a controller 18 is provided outside the air inlet port 5, and the controller 18 is a standard controller KY02S, and the controller 18 is respectively connected to the The air conditioner 7, the air heater 8, the temperature sensor 12 and the ultrasonic cleaner 13 are equipped with a controller 18, so that the work of each unit can be better controlled and the work efficiency can be improved.

To sum up, with the help of the above technical solution of the utility model, the utility model can adjust and control the amount of air entering the air channel by setting the air conditioner 7, thereby ensuring that the air preheater enters when it is just started. A small amount of air can improve the preheating effect of the air preheater at the initial stage of start-up, and reduce the dew point corrosion at the outlet end 4 of the flue; by setting the heater 8, the air preheater can preheat the inflowing air at the initial stage of start-up, thereby reducing Dew point corrosion at the outlet end 4 of the flue; by setting the glass tube air preheating pipe 9, the finned air preheating mechanism 10 and the spoiler air preheating mechanism 11, the preheating effect of the air preheater is better, and the air preheating effect is improved. Improve the preheating efficiency and reduce the dew point corrosion of the flue outlet end 4; by setting the temperature sensor 12, it is better to detect the temperature of the flue outlet end 4, so that the heater 8 and the air conditioner can be well controlled 7. By setting the ultrasonic cleaner 13, the soot cleaning port 14 and the soot blowing port 15, ultrasonic waves are used to remove dust, which can effectively solve the problem of dust blocking in the air preheater and improve the service life of the air preheater.

In addition, by setting the soot cleaning port 14 and the soot blowing port 15 as a flange connection, it is convenient for the staff to clean the soot and improve work efficiency; Vibration problems, thereby improving the stability of the air preheater; by setting the balance flow field turbulence 17 at the air channel elbow, the flow velocity of the air at the elbow can be accelerated, thereby improving the air entering the air preheater. The speed of the device reduces the loss of heat and improves the heat exchange rate; by setting the controller 18, the work of each unit is better controlled and the work efficiency is improved.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in the Within the protection scope of the present utility model.

Claims (10)

1. A spoiler air preheater, characterized in that it comprises a flue gas channel (1) and an air channel (2), and the two ends of the flue gas channel (1) are respectively provided with a flue gas inlet port (3) and the flue gas outlet port (4), the two ends of the air channel (2) are respectively provided with an air inlet port (5) and an air outlet port (6), and the air channel (2) is reciprocally placed in the flue gas channel ( 1), wherein, the air channel (2) is sequentially provided with an air conditioner (7), a heater (8), a glass tube air preheating tube from the air inlet port (5) to the air outlet port (6) (9), finned air preheating mechanism (10) and spoiler air preheating mechanism (11); a temperature sensor (12) is arranged inside the flue gas outlet end (4), and the flue gas channel (1 ) is provided with an ultrasonic cleaner (13); the outer side of the flue gas inlet end (3) is provided with a soot cleaning port (14), and the outer side of the flue gas outlet end (4) is provided with a soot blower port (15). 2. A spoiler air preheater according to claim 1, characterized in that, the air conditioner (7) comprises a motor (71), a rotating shaft (72) and a regulating plate (73), the The motor (71) is connected to the rotating shaft (72), and the regulating plate (73) is fixed on the rotating shaft (72). 3. A spoiler air preheater according to claim 2, characterized in that bearings (74) are provided at both ends of the rotating shaft (72), and a fixing hole (72) is provided on the rotating shaft (72) 75), the adjusting plate (73) is provided with a positioning center (76) matched with the fixing hole (75), and the fixing hole (75) and the positioning center (76) are connected by bolts. 4. A spoiler air preheater according to claim 2, characterized in that, the regulating plate (73) comprises a telescopic plate (77) and a fixed plate (78), and the fixed plate (78) fixed on the rotating shaft (72), the telescopic plate (77) is connected to the fixed plate (78) through a telescopic rod (79), wherein the telescopic plate (77) is provided with a fixed button (710 ), the fixing plate (78) is provided with a fixing groove (711) matched with the fixing button (710). 5. A spoiler air preheater according to claim 1, characterized in that, the glass tube air preheating pipe (9) is made of fluoroboron glass material, and the finned air preheating mechanism (10 The heat exchange tube one (101) of ) is an enamel coating tube, and the heat exchange tube two (111) of the spoiler air preheating mechanism (11) is a carbon steel material. 6. The spoiler air preheater according to claim 1, characterized in that, the soot cleaning port (14) and the soot blowing port (15) are connected by flanges. 7. A turbulent air preheater according to claim 1, characterized in that the flue gas passage (1) is provided with an anti-vibration partition (16) parallel to the flue gas flow direction. 8. A spoiler air preheater according to claim 1, characterized in that a balanced flow field spoiler (17) is provided at the elbow of the air channel (2). 9. A spoiler air preheater according to claim 8, characterized in that, the balanced flow field spoiler (17) consists of a shell (171) and a guide core arranged in the shell (171) body (172), the guide core (172) consists of several blades (173) and a central support (174), and the blades (173) are arranged on the center of the support (174) and the shell (171) surrounded inside the space. 10. A spoiler air preheater according to claim 1, characterized in that a controller (18) is provided outside the air inlet end, and the controller (18) is respectively connected to the Described air conditioner (7), heater (8), temperature sensor (12) and ultrasonic cleaner (13).