Soot blower for rotary air pre-heater

Abstract

The utility model provides a soot blower for a rotary air pre-heater, and relates to the field of thermoelectric soot blowing, the soot blower for the rotary air pre-heater comprises a support frame, the outer ring of the support frame is fixedly provided with a shunting sleeve, the middle part of the shunting sleeve is divided into an upper cavity and a lower cavity through a partition plate, and the upper cavity and the lower cavity are communicated with each other. And the upper and lower cavities of the shunting sleeve are respectively connected and communicated with a liquid inlet pipe and an air inlet pipe. According to the soot blowing device for the rotary air pre-heater, through continuous low-speed rotation of a spraying pipe corresponding to a liquid inlet pipe, hot water spraying is conducted on the air pre-heater, interval rotation of an air inlet pipe is conducted, and hot steam is continuously sprayed to the position where the air inlet pipe is located; separated dust can be separated from the air pre-heater through hot steam, after cleaning is completed by one circle, the air inlet pipe is switched into dry hot air, at the moment, the spraying pipe corresponding to the air inlet pipe rotates continuously, residual water is dried through the dry hot air, and the problem that hardened dust is not prone to falling off in the prior art is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of heat and electric blowing dust, specifically is used for the blowing dust device of rotary air preheater. BACKGROUND

[0002] In order to reduce the temperature of the flue gas of the boiler of the thermal power plant, most of the boilers of the thermal power plant are provided with air preheaters, when the coal of the boiler of the power plant deviates from the design value, the ash content of the coal increases, and simultaneously, due to the ammonia escape of the denitration system, the probability of the adhesion of the air preheater to sulfuric acid hydrogen ammonium increases, which greatly increases the possibility of the blockage of the rotary air preheater.

[0003] In the Chinese invention patent application publication specification CN219828889U, the blowing dust device for the rotary air preheater is disclosed, the air preheater includes a plurality of module bins arranged in a circular array mode, a plurality of heat storage elements are arranged in the module bin, the blowing dust device includes a first jet gun pipe and a second jet gun pipe which are parallel to each other and are arranged above the air preheater, a plurality of first nozzles are arranged on the side of the air preheater of the first jet gun pipe, a plurality of second nozzles are arranged on the side of the air preheater of the second jet gun pipe, and the first nozzles and the second nozzles are arranged one by one in correspondence;

[0004] The technical scheme can be connected to the first end of the air inlet main pipe through the first jet gun pipe and the second jet gun pipe, the second end of the air inlet main pipe is connected to the gas source, the air inlet main pipe is further connected to the driving motor, the first jet gun pipe and the second jet gun pipe are arranged on the upper surfaces of the two adjacent module bins, so that when the air preheater rotates, the first jet gun pipe and the second jet gun pipe sequentially perform the blowing dust action on the heat storage elements in any two adjacent module bins.

[0005] The dust of the rotary air preheater is tightly bonded and cannot be effectively removed by the jet blowing dust, the arrangement in the device can only blow dust on two heat storage elements in one rotation, but the dust cannot be effectively removed by only increasing the blowing dust time. INVENTION CONTENTS

[0006] In view of the deficiencies of the prior art, the utility model provides the blowing dust device for the rotary air preheater, and solves the problem that the tightly bonded dust cannot be effectively removed in the background art.

[0007] TECHNICAL SCHEME

[0008] The utility model discloses a blow -off device for rotary air preheater, including support frame, the outer ring fixed mounting of support frame has the shunt cover, and the middle part of shunt cover is divided into two cavities by the partition, and the upper and lower two cavities of shunt cover are connected respectively and the liquid inlet pipe and air inlet pipe are penetrated, the upper and lower sides of the inner ring of shunt cover are rotatably connected with the rotary plate, and the side away from shunt cover of rotary plate is provided with the rotary cavity, and the rotary cavity is fixedly connected with rotary plate through the communicating pipe and is penetrated, and the side away from shunt cover of rotary cavity is fixedly installed with the inner tooth ring, and the outer ring of rotary cavity is connected and penetrated with the spray pipe, and the top of rotary cavity is provided with the gearbox, and the two output ends of gearbox are fixedly installed with the gear of drive inner tooth ring rotation, and the input end of gearbox is fixedly installed with the motor, and the outer surface of gearbox is fixedly installed with the support rod, and support rod is fixedly connected with support frame.

[0009] Further, the spray pipe away from the rotary cavity side is fixedly installed with a sleeve holder, and the bottom end of the sleeve holder is fixedly installed with a ball.

[0010] Further, the inner ring of the rotary cavity is provided with a clamping ring groove, and the clamping block is rotatably connected in the clamping ring groove, and the clamping block is fixedly connected with the support frame.

[0011] Further, the support frame includes a support ring at the bottom end, a plurality of vertical beams are fixedly installed on the inner ring of the support ring, the clamping block and the shunt cover are fixedly installed on the outer surface of the vertical beam, and the gear is located between the two adjacent vertical beams.

[0012] Further, the inner side of the upper and lower ends of the shunt cover is provided with a ring groove, and the rotary plate is rotatably connected in the ring groove.

[0013] Further, the lengths of the two sleeve holders are different, the balls at the bottom ends of the two sleeve holders are located on the same plane, and the lower cutting surface of the ball and the bottom surface of the support ring are located on the same horizontal plane.

[0014] The utility model discloses the beneficial effect lies in:

[0015] 1. The blow -off device for rotary air preheater, through the liquid inlet pipe of setting, supply hot water, and the air inlet pipe supplies hot steam first, and the liquid inlet pipe corresponding spray pipe continues low -speed rotation, and the hot water is sprayed to air preheater, and the air inlet pipe interval rotation is carried out to the position and is continuously injected hot steam, first, through hot water spraying, can accelerate the fall of the hardening dust, and through hot steam, can separate the dust separated from air preheater, and after cleaning a circle, switch the air inlet pipe to dry hot air, at this time, the spray pipe corresponding to the air inlet pipe is continuously rotated, and the residual moisture is blown dry through the dry hot air, solve the problem that the hardening dust is not easy to fall in the prior art.

[0016] 2. The device for the rotary air preheater, the inner ring of the rotating cavity is provided with a clamping ring groove, the clamping block is rotatably connected in the clamping ring groove, and the clamping block is fixedly connected with the support frame. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic view of the utility model;

[0018] Figure 2 It is a support frame connection schematic view of the utility model;

[0019] Figure 3 It is a sleeve connection schematic view of the utility model;

[0020] Figure 4 It is a rotating cavity connection schematic view of the utility model;

[0021] Figure 5 It is a gearbox connection schematic view of the utility model.

[0022] 1, support frame; 2, shunt sleeve; 3, liquid inlet pipe; 4, air inlet pipe; 5, rotating plate; 6, rotating cavity; 7, inner gear ring; 8, spray pipe; 9, gearbox; 10, gear; 11, motor; 12, support rod; 13, sleeve frame; 14, ball; 15, clamping ring groove; 16, block; 17, ring groove; 18, communication pipe; 101, support ring; 102, vertical beam. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] Reference Figures 1-5The utility model relates to a device for rotary air preheater's blowing dirt, including support frame 1, the outer ring fixed mounting of support frame 1 has shunt sleeve 2, the middle part of shunt sleeve 2 is divided into two cavities by the partition, the upper and lower two cavities of shunt sleeve 2 are connected and the through liquid inlet pipe 3 and air inlet pipe 4 respectively, the upper and lower sides of the inner ring of shunt sleeve 2 are rotatably clamped with rotary plate 5, the side away from shunt sleeve 2 of rotary plate 5 is provided with rotary cavity 6, and rotary cavity 6 is fixedly connected and penetrates through the communication pipe 18 between rotary cavity 6 and rotary plate 5, the inner tooth ring 7 is fixedly installed on the side away from shunt sleeve 2 of rotary cavity 6, and the outer ring of rotary cavity 6 is connected and penetrates through the spray pipe 8, the top of the top rotary cavity 6 is provided with gearbox 9, the two output ends of gearbox 9 are fixedly installed with gear 10 that drives the rotation of inner tooth ring 7, the input end of gearbox 9 is fixedly installed with motor 11, and the outer surface of gearbox 9 is fixedly installed with support rod 12, and support rod 12 is fixedly connected with support frame 1.

[0025] The side away from rotary cavity 6 of spray pipe 8 is fixedly installed with sleeve adapter 13, and the bottom end of sleeve adapter 13 is fixedly installed with ball 14, and the spray pipe 8 can be supported by setting sleeve adapter 13 and ball 14, since the length of the spray pipe 8 is relatively long, the deformation of the spray pipe 8 can be reduced by supporting on the outside.

[0026] The inner ring of rotary cavity 6 is provided with clamping ring groove 15, and the inside of clamping ring groove 15 is rotatably connected with clamping block 16, and clamping block 16 is fixedly connected with support frame 1, and the rotary cavity 6 can be supported by clamping block 16 by such setting, and meanwhile, it can be guaranteed that the rotary cavity 6 can rotate.

[0027] Support frame 1 includes bottom support ring 101, and the bottom support ring 101 can increase the stress area of the device, a plurality of vertical beams 102 are fixedly installed on the inner ring of support ring 101, the vertical beams 102 can play a connecting role, the clamping block 16 and the shunt sleeve 2 are fixedly installed on the outer surface of the vertical beam 102, and the gear 10 is located between the adjacent two vertical beams 102, and the stability of the device can be guaranteed by such setting.

[0028] The inner side of the upper and lower ends of shunt sleeve 2 is provided with ring groove 17, and rotary plate 5 is rotatably connected in the inside of ring groove 17, and the rotary plate 5 can be limited and rotated at the same time by setting ring groove 17 on the two sides of the inner ring, and the rotary sealing mechanism is set to avoid leakage.

[0029] The lengths of the two sleeve adapters 13 are different, the balls 14 at the bottom ends of the two sleeve adapters 13 are located on the same plane, the lower cutting surface of the ball 14 is located on the same horizontal plane as the bottom surface of the support ring 101, and the device can be installed on the top of the rotary air preheater by such setting.

[0030] In use, the device is arranged above the air preheater, the liquid inlet pipe 3 supplies hot water, the gas inlet pipe 4 first supplies hot steam, the liquid inlet pipe 3 corresponding spray pipe 8 continuously rotates at low speed, the air preheater is sprayed with hot water, the gas inlet pipe 4 rotates at intervals, continuously spraying hot steam at the position, first, the water spray can accelerate the fall of the hardened dust, the separated dust can be separated from the air preheater by the hot steam, after a complete cleaning cycle, the gas inlet pipe 4 is switched to dry hot air, at this time, the gas inlet pipe 4 corresponding spray pipe 8 continuously rotates, the residual moisture is blown dry by the dry hot air, solving the problem that the hardened dust is not easy to fall off in the prior art.

[0031] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions.

[0032] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A soot blowing device for a rotary air preheater, comprising a support frame (1), characterized in that: The outer ring of the support frame (1) is fixedly installed with a diversion sleeve (2). The middle part of the diversion sleeve (2) is divided into upper and lower cavities by a partition. The upper and lower cavities of the diversion sleeve (2) are respectively connected to and penetrated by the liquid inlet pipe (3) and the air inlet pipe (4). The inner ring of the diversion sleeve (2) is rotatably engaged with a rotating plate (5) on both the upper and lower sides. A rotating cavity (6) is provided on the side of the rotating plate (5) away from the diversion sleeve (2). The rotating cavity (6) and the rotating plate (5) are fixedly connected and connected through a connecting pipe (18). An internal toothed ring (7) is fixedly installed on the side of the rotating cavity (6) away from the diversion sleeve (2). A spray pipe (8) is connected and connected to the outer ring of the rotating cavity (6). A gearbox (9) is provided above the rotating cavity (6) described above. Gears (10) for driving the internal gear ring (7) to rotate are fixedly installed at the two output ends of the gearbox (9). A motor (11) is fixedly installed at the input end of the gearbox (9). A support rod (12) is fixedly installed on the outer surface of the gearbox (9). The support rod (12) is fixedly connected to the support frame (1).

2. The soot blowing device for a rotary air preheater according to claim 1, characterized in that: A socket (13) is fixedly installed on the side of the spray pipe (8) away from the rotating cavity (6), and a ball bearing (14) is fixedly installed at the bottom end of the socket (13).

3. The soot blowing device for a rotary air preheater according to claim 1, characterized in that: The inner ring of the rotating cavity (6) is provided with a snap ring groove (15), and a snap block (16) is rotatably connected inside the snap ring groove (15). The snap block (16) is fixedly connected to the support frame (1).

4. The soot blowing device for a rotary air preheater according to claim 3, characterized in that: The support frame (1) includes a support ring (101) at the bottom end. Multiple sets of vertical beams (102) are fixedly installed on the inner ring of the support ring (101). The snap-fit ​​block (16) and the diverter sleeve (2) are both fixedly installed on the outer surface of the vertical beam (102). The gear (10) is located between two adjacent vertical beams (102).

5. The soot blowing device for a rotary air preheater according to claim 4, characterized in that: The upper and lower ends of the diversion sleeve (2) are provided with annular grooves (17), and the rotating plate (5) is rotatably connected inside the annular grooves (17).

6. The soot blowing device for a rotary air preheater according to claim 2, characterized in that: The two sockets (13) have different lengths, and the balls (14) at the bottom of the two sockets (13) are located on the same plane. The lower tangent of the balls (14) and the bottom surface of the support ring (101) are on the same horizontal plane.

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