CN213872736U

CN213872736U - Box type ash cooler

Info

Publication number: CN213872736U
Application number: CN202021357921.0U
Authority: CN
Inventors: 王培志; 秦裕琨
Original assignee: Qingdao Songling Power Environmental Equipment Co Ltd
Current assignee: Qingdao Songling Power Environmental Equipment Co Ltd
Priority date: 2020-07-13
Filing date: 2020-07-13
Publication date: 2021-08-03
Anticipated expiration: 2030-07-13

Abstract

The utility model provides a box ash cooler sets up in the exit of high temperature boiler ashes, includes feeding diverging device, waste heat recovery device and discharge bin from top to bottom in proper order, feeding diverging device includes the inlet pipe that is connected with the ashes export, the bottom and the conveying pipe top fixed connection of inlet pipe, the bottom of conveying pipe is connected with the diverging box entry of diverging box, the diverging box includes toper shell and toper guide plate, the tapering of toper shell is less than the tapering of toper guide plate, the bottom fixed connection of toper shell and toper guide plate, evenly set up the water conservancy diversion hole on the toper guide plate, the bottom of diverging box is connected with waste heat recovery device's recovery bin, the bottom in discharge bin sets up the discharge port. The utility model discloses a set up waste heat recovery module and can increase and decrease quantity according to actual need, satisfy different operating mode needs, also improved production efficiency and practiced thrift installation period.

Description

Box type ash cooler

Technical Field

The utility model relates to a supporting user equipment of boiler especially relates to a box ash cooler.

Background

The temperature of the bottom ash of the return feeder of the coal-fired boiler in the thermal power plant is up to more than 1000 ℃, the granularity is very fine, the fluidity is good, the return feeder is easy to agglomerate, the return feeder is easy to adhere to the surface of metal, the cleaning is difficult, and the dust is easy to leak. The existing ash cooler is small in feeding port, the problem of uneven dispersion exists after high-temperature furnace ash enters the ash cooler, waste heat recovery is insufficient, and the furnace ash is easy to adhere to a condensation pipe, so that the recovery efficiency of the condensation pipe is reduced.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a can be with the box ash cooler of ashes dispersion and high-efficient waste heat recovery.

For solving the above problem the utility model discloses a technical scheme be:

a box-type ash cooler is arranged at an outlet of high-temperature boiler ash and sequentially comprises a feeding flow distribution device, an afterheat recovery device and a discharge bin from top to bottom, wherein the feeding flow distribution device comprises a feeding pipe arranged at the bottom of an ash outlet, a conveying pipe connected with the feeding pipe is arranged at the bottom of the feeding pipe, a flow distribution box is arranged at the bottom of the conveying pipe and comprises a conical shell and a conical flow guide plate arranged in the conical shell, a flow distribution box inlet connected with the conveying pipe is arranged at the center of the top of the conical shell, a certain distance is reserved between the center of the conical shell and the center of the conical flow guide plate, the conical shell is fixedly connected with the bottom of the conical flow guide plate, a plurality of flow guide holes are uniformly arranged on the conical flow guide plate, the bottom of the flow distribution box is connected with the recovery bin of the afterheat recovery device, and a plurality of afterheat recovery layers are horizontally arranged in the recovery bin, every it places the frame to set up on the waste heat recovery layer, it sets up the condenser pipe in the frame to place, the bottom in recovery storehouse sets up the discharge bin, set up the fluidization tuber pipe on the bulkhead in discharge bin, set up fluidization wind switch on the fluidization tuber pipe, the bottom in discharge bin sets up the discharge port.

Has the advantages that:

1. the utility model discloses a condenser pipe is H type finned tube or spiral finned tube or pin fin pipe, has increased the contact surface area of ashes and condenser pipe, makes the ashes carry out abundant cooling fast, and the heat can fully be retrieved simultaneously, realizes energy-efficient.

2. The quantity of the waste heat recovery modules can be increased or decreased according to actual needs, the requirements of different working conditions are met, the production efficiency is improved, and the installation period is shortened.

3. The fluidization tuber pipe can further cool off the ashes, can also prevent simultaneously that the ashes from adhering on the condenser pipe, influences waste heat recovery, the cooperation of temperature controller and ash cooler control center, the ashes to on the condenser pipe that can be timely clear up, improved work efficiency.

4. The shunting device breaks up the high-temperature furnace dust entering the ash cooler, so that the furnace dust is uniformly arranged in the recovery bin, and the heat exchange efficiency is improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a vertical sectional view of the present invention;

fig. 3 is a horizontal sectional view of the present invention;

FIG. 4 is a schematic view of a condenser tube according to the present invention;

in the figure: 1. the device comprises a feeding pipe, 2, a conveying pipe, 3, a conical shell, 4, a conical guide plate, 5, a placing frame, 6, a waste heat recovery layer, 7, a discharge bin, 8, a discharge port, 9, a fluidized air pipe, 10, a fluidized air switch, 11, a waste heat recovery device, 13, a flow distribution box, 14, a flow distribution box inlet, 15, a condensation pipe, 16, a recovery water outlet pipe, 17, a total water outlet pipe, 18, a total water inlet pipe, 19, a recovery water inlet pipe, 20, a recovery bin, 21 and a flow guide hole.

Detailed Description

The essential features and advantages of the invention will be further explained below with reference to examples, but the invention is not limited to the embodiments listed.

Referring to fig. 1-4, the structure of a box-type ash cooler according to an embodiment of the present invention is shown, and for convenience of illustration, only the relevant parts of the embodiment of the present invention are shown.

Example 1

A box-type ash cooler is arranged at an outlet of high-temperature boiler ash and comprises a feeding flow dividing device, a waste heat recovery device and a discharge bin which are connected with each other from top to bottom, wherein the feeding flow dividing device comprises a feeding pipe 1 arranged at the bottom of an ash outlet, two conveying pipes 2 are arranged at the bottom of the feeding pipe 1, the bottom of the feeding pipe 1 is fixedly and hermetically connected with the tops of the two conveying pipes 2, the conveying pipes 2 divide the ash in the feeding pipe 1 into two parts, the conveying pipes 2 are pipes with corners, the bottoms of the conveying pipes 2 are vertically connected with a flow dividing box 13, the bottoms of the conveying pipes 2 are vertically used for better dispersing the high-temperature ash at each angle of the flow dividing box 13, the condition of material distribution is avoided, the flow dividing box 13 comprises a conical shell 3 and a conical guide plate 4, a flow dividing box inlet 14 is arranged at the center of the top of the conical shell 3, the tapering of toper shell 3 is less than the tapering of toper guide plate 4, the center department of toper shell 3 sets up on a straight line with the center department of toper guide plate 4, the center of toper shell 3 and the certain distance of the center interval of toper guide plate 4, and the distance is 5-20cm, the bottom of toper shell 3 and the sealed fixed connection in bottom of toper guide plate 4, evenly set up the same water conservancy diversion hole 21 of a plurality of size on the toper guide plate 4, high temperature furnace ash gets into branch workbin 13 by branch workbin entry 14 under the effect of transporting pipe 2 in, with material dispersion, the even waste heat recovery device 11 that falls into of disturbance under the effect of toper guide plate 4.

Waste heat recovery device 11 is including retrieving storehouse 20, placing frame 5 and waste heat recovery layer 6, two the side fixed connection of reposition of redundant personnel case 13, two the fixed top that sets up in retrieving storehouse 20 in bottom of reposition of redundant personnel case 13, the shape of retrieving storehouse 20 is square or cuboid, set up multilayer waste heat recovery layer 6 in the retrieval storehouse 20, every set up on the waste heat recovery layer 6 and place frame 5, it is snakelike condenser pipe 15 to place to set up on the frame 5, coolant in the condenser pipe 15 is water, and two-layer upper and lower adjacent waste heat recovery layer 6 is a waste heat recovery module, the waste heat recovery module includes: retrieve inlet tube 19, retrieve outlet pipe 16, upper condenser pipe, lower floor's condenser pipe, retrieve inlet tube 19 and retrieve outlet pipe 16 and set up with one side, retrieve inlet tube 19 and connect lower floor's condenser pipe, retrieve outlet pipe 16 and set up in upper condenser pipe end portion, upper condenser pipe with the afterbody of lower floor's condenser pipe is connected through communicating pipe. Each recycling water inlet pipe 19 is connected with a main water inlet pipe 18, the quantity of waste heat recycling modules can be selected according to the actual cooling material quantity and the space size, the waste heat recycling device 11 is at least provided with one waste heat recycling module, the waste heat recycling device 11 is preferably provided with 2-5 waste heat recycling modules, the modular arrangement of the waste heat recycling modules is more convenient and faster when being installed and used, the tail end of a recycling water outlet pipe 16 of each waste heat recycling module is hermetically connected with a main water outlet pipe 17, a temperature controller is arranged on the main water outlet pipe 17 and used for sensing the temperature of water in the main water outlet pipe, the condensing pipes 15 are H-shaped finned pipes or spiral finned pipes or nail head pipes, the condensing pipes 15 are mutually staggered and interpenetrated, the heating area of the condensing pipes 15 is increased, the bottom of the recycling bin 20 is provided with a discharging bin 7, and the wall of the discharging bin 7 is provided with a fluidization air pipe 9, the fluidization air pipe 9 is provided with a fluidization air switch 10, and the bottom of the discharge bin 7 is provided with a discharge port 8.

If the temperature controller detects that the temperature is less than 75 ℃, the temperature controller transmits temperature signal to ash cooler control center, ash cooler control center sends turn-on signal to fluidization wind switch after receiving temperature signal, make and blow out the stove ash that strong wind blows off the adhesion on the condenser pipe among the fluidization tuber pipe, guarantee the rate of recovery of condenser pipe and the cooling capacity to the stove ash, when the temperature controller detects that the temperature in the total outlet pipe is higher than 78 ℃, the temperature controller sends temperature signal for ash cooler control center, ash cooler control center sends turn-off signal and gives fluidization wind switch, so relapse in order to guarantee the rate of recovery of heat of condenser pipe.

High-temperature furnace dust enters a box-type dust cooler from a feeding pipe, uniformly enters two conveying pipes at the bottom of the feeding pipe respectively, vertically enters a shunt box from the conveying pipes, is fully scattered in a conical guide plate of the shunt box, uniformly falls into each corner of a recovery bin, is cooled under the action of a waste heat recovery module, and simultaneously absorbs heat to be heated by cooling medium water in a condensation pipe, so that the environment is protected, energy is saved, the furnace dust falls into a discharge port of a discharge bin to enter a next-stage device, when the condensation pipe is adhered by the furnace dust, a temperature controller is used for transmitting a signal to a dust cooler control center to start a fluidization air switch, disturbance air blown out by a fluidization air pipe can further blow the material to be disturbed, meanwhile, adhesion and bridging can be prevented, the cooling of the furnace dust can be enhanced, three purposes are achieved, and the cooled furnace dust is discharged through the discharge port, thereby repeatedly performing waste heat recovery on the furnace dust.

The utility model fully considers the characteristics of the high-temperature furnace dust, evenly distributes the fine high-temperature furnace dust on the surface of the condensing pipe as much as possible, the condensing pipe is an H-shaped finned pipe or a spiral finned pipe or a pin fin pipe, the contact surface area of the furnace dust and the condensing pipe is increased, the furnace dust is rapidly and fully cooled, meanwhile, the heat can be fully recovered, and high efficiency and energy conservation are realized; the quantity of the waste heat recovery modules can be increased or decreased according to actual needs, the requirements of different working conditions are met, the production efficiency is improved, and the installation period is saved; the fluidized air pipe can further cool furnace dust, and simultaneously can prevent the furnace dust from being adhered to the condensation pipe to influence waste heat recovery; the dispersion device breaks up the high-temperature furnace ash entering the ash cooler, so that the furnace ash is uniformly arranged in the recovery bin, and the heat exchange efficiency is improved.

Example 2

The difference between this embodiment and embodiment 1 lies in that the conveying pipe is connected with the inlet of star-shaped tripper, and the discharge gate of star-shaped tripper is arranged at the top of waste heat recovery device.

Example 3

The difference between this embodiment and

embodiments

1 and 2 is that a mechanical vibrator is arranged outside the waste heat recovery device to vibrate the ash adhered to the condensation pipe by vibration, thereby improving the waste heat recovery rate and the cooling rate.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a box ash cooler, sets up in the exit of high temperature boiler ashes, its characterized in that, from top to bottom includes feeding diverging device, waste heat recovery device (11) and discharge bin in proper order, feeding diverging device is including setting up in inlet pipe (1) of ashes export bottom, the bottom of inlet pipe (1) is equipped with conveying pipe (2) that are connected with inlet pipe (1), the bottom of conveying pipe (2) is equipped with flow distribution box (13), flow distribution box (13) include toper shell (3) and set up toper guide plate (4) in toper shell (3), the top center department of toper shell (3) sets up flow distribution box entry (14) that are connected with conveying pipe (2), the center of toper shell (3) and the center department of toper guide plate (4) certain distance of interval, the bottom fixed connection of toper shell (3) and toper guide plate (4), evenly set up a plurality of water conservancy diversion hole (21) on toper guide plate (4), the bottom of reposition of redundant personnel case (13) is connected with recovery storehouse (20) of waste heat recovery device (11), it sets up multilayer waste heat recovery layer (6), every to retrieve storehouse (20) interior level set up on the waste heat recovery layer (6) and place frame (5), set up condenser pipe (15) in placing frame (5), the bottom of retrieving storehouse (20) sets up discharge bin (7), set up fluidization tuber pipe (9) on the bulkhead of discharge bin (7), set up fluidization wind switch (10) on fluidization tuber pipe (9), the bottom of discharge bin (7) sets up discharge port (8).

2. A box-type ash cooler according to claim 1, characterized in that the bottom of the feeding pipe (1) is connected with at least one conveying pipe (2), the conveying pipe (2) is provided with corners, the bottom of each conveying pipe (2) is vertically connected with a flow dividing box inlet (14), and each flow dividing box (13) is arranged at the top of the recovery bin (20) in a rectangular arrangement.

3. A box-type ash cooler according to claim 1, characterized in that the recovery bin (20) is in the shape of a cube or a cuboid.

4. A box-type ash cooler according to claim 1,

two adjacent waste heat recovery layers (6) are a set of waste heat recovery module from top to bottom, the waste heat recovery module includes: retrieve inlet tube (19), retrieve outlet pipe (16), upper condensing tube, lower floor's condenser pipe, retrieve inlet tube (19) and retrieve outlet pipe (16) and set up in same one side, retrieve inlet tube (19) and connect lower floor's condenser pipe, retrieve outlet pipe (16) and set up in upper condenser pipe end portion, the upper condensing tube with the afterbody of lower floor's condenser pipe is connected through communicating pipe.

5. A box type ash cooler according to claim 4, characterized in that the upper and lower condensation pipes are snake-shaped, and the condensation pipe (15) is an H-shaped finned pipe or a spiral finned pipe or a nailhead pipe.

6. A box-type ash cooler according to claim 4, characterized in that the box-type ash cooler is provided with at least one group of waste heat recovery modules.

7. A box-type ash cooler according to claim 1, characterized in that the cooling medium in the condenser pipe (15) is water.

8. A box type ash cooler according to claim 4, characterized in that the end of each recovery water outlet pipe (16) is connected with a main water outlet pipe (17), a temperature controller is arranged on the main water outlet pipe (17), the temperature controller transmits a temperature signal to an ash cooler control center, and the ash cooler control center controls the fluidized air switch (10) according to the temperature signal.