DE212020000407U1 - Soot settling device for thermal power station - Google Patents

Abstract

Soot settling device for thermal power station, characterized, comprising a settling tank (1), a flue gas inlet (3), a flue gas outlet pipe (4) and a flue gas inlet pipe (13), the flue gas outlet pipe (4) and the flue gas inlet pipe (13) on two sides of the upper End of the sedimentation tank (1) are located, and the flue gas outlet pipe (4) and the flue gas inlet pipe (13) both communicate with the interior of the sedimentation tank (1), the flue gas inlet (3) is placed on the top of the flue gas inlet pipe (13), a waste heat recovery mechanism the side wall of the flue gas inlet pipe (13) is provided, a soot settling arrangement is arranged within the settling tank (1), a filter mechanism is arranged within the flue gas outlet pipe (4), a shaking device is provided below the filter mechanism, a circulating water tank (5) at the upper end of the settling tank (1) is provided, the waste heat recovery mechanism with the circulation w assertank (5) communicates, a dedusting door (2) is provided on one side of the sedimentation tank (1), and the dedusting door (2) is connected to the sedimentation tank (1) in a sealingly articulated manner.

Description

TECHNICAL AREA

The utility model relates to the related technical field of flue gas treatment, in particular to a soot settling device for thermal power plants.

STATE OF THE ART

Thermal power plant is abbreviated as thermal power plant and this is a factory that uses coal, oil and natural gas as fuels to generate electricity. The basic production process is: The fuel is burned in the boiler to heat the water into steam, converting the chemical energy of the fuel into thermal energy. The steam pressure drives the steam turbine to rotate and the thermal energy is converted into mechanical energy. The steam turbine then drives the generator to rotate and converts mechanical energy into electrical energy.

If coal is burned in the existing thermal power station, the soot content in the exhausted flue gas is relatively high. Therefore, the flue gas has to be set off. However, the existing settling device has a complex structure and a poor settling effect. And the settling device cannot clean the evacuated flue gas and has no waste heat recovery function and monotonous functionality. Therefore one has to improve it.

CONTENTS OF THE PRESENT USED MODEL

The object of the present utility model is to provide a soot settling device for thermal power plants in order to solve the above-mentioned problems from the prior art.

In order to solve the technical problems mentioned above, the present utility model offers the following technical solutions: Soot settling device for thermal power plants, comprising a settling tank, a flue gas inlet, a flue gas outlet pipe and a flue gas inlet pipe, the flue gas outlet pipe and the flue gas inlet pipe being located on two sides of the upper end of the settling tank , and the flue gas outlet pipe and the flue gas inlet pipe both communicate with the interior of the settling tank, the flue gas inlet is introduced on the top of the flue gas inlet pipe, a waste heat recovery mechanism is provided on the side wall of the flue gas inlet pipe, a soot settling arrangement is arranged inside the settling tank, a filter mechanism is arranged inside the flue gas outlet pipe , a shaking assembly is provided below the filter mechanism, a circulating water tank is provided at the upper end of the settling tank, the waste heat recovery heat mechanism communicates with the circulating water tank, a dedusting door is provided on one side of the settling tank, and the dedusting door is connected to the settling tank in a sealed manner.

It is preferably provided that the soot settling arrangement comprises a first separating plate and a second separating plate, the first separating plate being firmly connected to the inner upper end of the settling tank, and a gap being present between the first separating plate and the inner lower end of the settling tank, while the second partition plate is fixedly connected to the inner lower end of the settling tank, and there is a gap between the second separating plate and the inner upper end of the settling tank. Soot can collide with the first partition plate and the second partition plate to facilitate settling.

It is preferably provided that there are several groups of the first separating plate and the second separating plate, several groups of the first separating plate and the second separating plate being arranged offset, and several groups of the first separating plate and the second separating plate dividing the sedimentation tank into several settling chambers, two adjacent groups of settling chambers communicating with each other. The settling process can be carried out with several settling chambers, which ensures a better settling effect.

It is preferably provided that one end of the first separating plate is rounded, and two sides of the first separating plate are each provided with a synthetic wax layer; that the second partition plate has the same structure as the first partition plate. This prevents dust from adhering to the first partition plate and the second partition plate.

It is preferably provided that the waste heat recovery mechanism comprises a lower ring-shaped water storage seat, a heat-conducting water pipe and an upper ring-shaped water storage seat, the lower ring-shaped water storage seat and the upper ring-shaped water storage seat each being placed on the upper and lower side wall of the flue gas inlet pipe, and two ends of the heat-conducting Water pipe each with the interior of the lower annular water storage seat and the communicate upper annular water storage seat. The waste heat recovery mechanism can recover the heat at the flue gas inlet pipe.

It is preferably provided that several groups of the thermally conductive water pipes are present, with several groups of the thermally conductive water pipes being arranged in the circumferential direction between the lower annular water storage seat and the upper annular water storage seat. This ensures that the water in the heat-conducting water pipe is heated evenly.

It is preferably provided that the circulating water tank is provided with a circulating water pump, a water inlet of the circulating water pump communicating with the interior of the circulating water tank via pipes, and the water outlet of the circulating water pump being connected to a water inlet pipe, the water inlet pipe communicating with the interior of the upper annular water storage seat, a water return pipe is connected to one side of the lower end of the circulating water tank, one end of the water return pipe communicates with the interior of the lower annular water storage seat. This enables the circulating waste heat to be recovered.

It is preferably provided that the filter mechanism comprises a filter screen and an activated carbon filter arrangement, the filter screen being fixedly attached in the flue gas outlet pipe, the activated carbon filter arrangement being attached to the outlet opening of the flue gas outlet pipe. This allows the flue gas to be cleaned.

It is preferably provided that the shaking assembly comprises a rotating shaft, a shovel and a rubber impact block, the rotating shaft being rotatably mounted in the smoke gas outlet pipe, the blade being fixedly attached to the side wall of the rotating shaft, the rubber striking block being fixedly attached to the blade, and the rubber striking block touches a rubber tension strip at the bottom of the filter screen. This can prevent clogging of the filter screen.

It is preferably provided that a conical smoke inlet is provided at the connection point between the lower end of the smoke gas outlet pipe and the settling tank, the conical smoke inlet being located directly below the shaking device. The flue gas can be blown onto the blades in order to rotate and thus perform the shaking off.

1. 1. Bei dem vorliegenden Gebrauchsmuster kann der Ruß nach dem Eintritt in das Innere des Absetzbehälters wiederholt mit der ersten Trennplatte und der zweiten Trennplatte kollidieren, indem eine Rußabsetzanordnung vorgesehen ist und durch mehrere Gruppen der ersten und zweiten Trennplatten der Absetzbehälter in mehrere Absetzkammern unterteilt sind. Durch die kontinuierliche Kollision wird der Ruß leichter abgesetzt und der Absetzeffekt wird verbessert. Weiterhin ist die synthetische Wachsschicht jeweils auf der Oberfläche der ersten Trennplatte und der zweiten Trennplatte vorgesehen, so dass verhindert werden kann, dass sich Staub auf der ersten Trennplatte und der zweiten Trennplatte ansammelt, was einen guten Absetzeffekt gewährleistet und die Bedienung erleichtert.
2. 2. Bei dem Gebrauchsmuster ist ein Abwärmerückgewinnungsmechanismus vorgesehen. Dadurch kann mit mehreren Gruppen wärmeleitender Wasserleitungen die Wärme in dem Ruß zurückgewonnen werden, was eine gewisse Energiesparwirkung und eine gute Umweltschutzwirkung bietet. Weiterhin ist im Rauchgasauslassrohr ein Filtermechanismus vorgesehen, was sicherstellen kann, dass das Rauchgas nach dem Staubniederschlag gefiltert und gereinigt wird und der Rußgehalt im abgeführten Gas niedrig ist. Und durch Vorsehen des Abschüttelmechanismus kann der Abschüttelmechanismus den am Filtersieb anhaftenden Staub abschütteln, wodurch ein guter Filtereffekt sichergestellt und eine kontinuierliche Filterung begünstigt wird.

The beneficial effects are:

1. 1. In the present utility model, the soot can repeatedly collide with the first partition plate and the second partition plate after entering the interior of the settling tank by providing a soot settling arrangement and by dividing the settling tanks into several settling chambers by several groups of the first and second separating plates. Due to the continuous collision, the soot is deposited more easily and the sedimentation effect is improved. Furthermore, the synthetic wax layer is provided on the surface of the first partition plate and the second partition plate, respectively, so that dust can be prevented from accumulating on the first partition plate and the second partition plate, which ensures a good settling effect and facilitates the operation.
2. 2. A waste heat recovery mechanism is provided for in the utility model. As a result, the heat in the soot can be recovered with several groups of heat-conducting water pipes, which offers a certain energy-saving effect and a good environmental protection effect. Furthermore, a filter mechanism is provided in the flue gas outlet pipe, which can ensure that the flue gas is filtered and cleaned after the dust has precipitated and that the soot content in the discharged gas is low. And by providing the shaking mechanism, the shaking mechanism can shake off the dust adhering to the filter screen, thereby ensuring a good filter effect and promoting continuous filtering.

Figure list

• 1 Fig. 3 is a schematic view of the overall structure of the utility model;
• 2 Fig. 3 is a schematic view of the internal structure of the utility model;
• 3 Fig. 13 is a schematic view of the structure of a first partition plate of the utility model;
• 4th FIG. 13 is a schematic view of the structure of part A in FIG 2 of the utility model.

DETAILED DESCRIPTION

With reference to 1 to 4th The present utility model offers the following technical solutions: Soot settling device for thermal power station, comprising a settling tank 1 , a smoke inlet 3 , a flue gas outlet pipe 4th and a flue gas inlet pipe 13th , with the flue gas outlet pipe 4th and the flue gas inlet pipe 13th on two sides of the top of the Sedimentation tank 1 and the flue gas outlet pipe 4th and the flue gas inlet pipe 13th both with the interior of the sedimentation tank 1 communicate, the smoke inlet 3 on the top of the flue gas inlet pipe 13th is introduced, a waste heat recovery mechanism on the side wall of the flue gas inlet pipe 13th is provided, a soot settling arrangement within the settling tank 1 is arranged, a filter mechanism within the flue gas outlet pipe 4th is arranged, a shaking device is provided below the filter mechanism, a circulating water tank 5 at the top of the sedimentation tank 1 is provided, the waste heat recovery mechanism with the circulating water tank 5 Communicated, on one side of the sedimentation tank 1 a dedusting door 2 is provided and the dust collector door 2 sealingly articulated with the sedimentation tank 1 connected is.

It is preferably provided that the soot settling arrangement has a first partition plate 15th and a second partition plate 16 comprises, wherein the first partition plate 15th firmly to the inner top end of the sedimentation tank 1 is connected, and a gap between the first partition plate 15th and the inner lower end of the sedimentation tank 1 is present while the second partition plate 16 firmly to the inner lower end of the sedimentation tank 1 is connected, and a gap between the second partition plate 16 and the inner top end of the sedimentation tank 1 is available. The one inside the sedimentation tank 1 Any soot that has entered can with the first partition plate 15th and the second partition plate 16 collide so that a better soot settling effect is made possible.

It is preferably provided that in each case several groups of the first separating plate 15th and the second partition plate 16 are present, with several groups of the first partition plate 15th and the second partition plate 16 are arranged offset, and several groups of the first partition plate 15th and the second partition plate 16 the sedimentation tank 1 in several settling chambers 14th divide, with two adjacent groups of sedimentation chambers 14th communicate with each other. This allows the soot to pass through several settling chambers 14th be dropped off; be discontinued; be deducted; be dismissed.

It is preferably provided that one end of the first separating plate 15th Is rounded, and two sides of the first partition plate 15th each with a synthetic wax layer 19th are provided; that the second partition plate 16 same structure as the first partition plate 15th having. This prevents dust from getting on the first partition plate 15th and the second partition plate 16 adheres.

It is preferably provided that the waste heat recovery mechanism has a lower annular water storage seat 9 , a thermally conductive water pipe 10 and an upper annular water storage seat 11 comprises, wherein the lower annular water storage seat 9 and the upper annular water storage seat 11 each on the upper and lower side wall of the flue gas inlet pipe 13th are placed, and two ends of the thermally conductive water pipe 10 each with the interior of the lower annular water storage seat 9 and the upper annular water storage seat 11 communicate. With the thermally conductive water pipe 10 the heat in the soot can be recovered, which has a certain environmental protection effect.

It is preferably provided that several groups of the heat-conducting water pipes 10 are present, with multiple groups of thermally conductive water pipes 10 in the circumferential direction between the lower annular water storage seat 9 and the upper annular water storage seat 11 are arranged. This ensures that the water in the heat-conducting water pipe is heated evenly.

It is preferably provided that the circulation water tank 5 with a circulating water pump 7th is provided, with a water inlet of the circulating water pump 7th via pipes to the inside of the circulation water tank 5 communicates, and the water outlet of the circulation water pump 7th with a water inlet pipe 6th connected to the water inlet pipe 6th with the interior of the upper annular water storage seat 11 communicates a water return line 8th on one side of the lower end of the circulating water tank 5 is connected, one end of the water return line 8th with the interior of the lower annular water storage seat 9 communicate. The circulation water pump 7th can be used to keep the water in the circulating water tank 5 in the upper annular water storage seat 11 is pumped out, and then into the several groups of thermally conductive water pipes 10 for waste heat recovery and finally through the lower ring-shaped water storage seat 9 and the water return line 8th into the circulation water tank 5 is returned.

It is preferably provided that the filter mechanism is a filter screen 23 and an activated carbon filter assembly 18th comprises, wherein the filter screen 23 firmly in the flue gas outlet pipe 4th is attached, the activated carbon filter assembly 18th at the outlet opening of the flue gas outlet pipe 4th is appropriate. This allows the discharged gas to be filtered and cleaned.

It is preferably provided that the shaking assembly has a rotating shaft 20th , a shovel 21 and a rubber impact block 22nd comprises, wherein the rotating shaft 20th rotatable in the flue gas outlet pipe 4th attached to the shovel 21 fixed to the side wall of the rotating shaft 20th attached, the rubber impact block 22nd firmly on the shovel 21 attached, and the rubber impact block 22nd a rubber tension strip 12th at the lower end of the filter screen 23 touched. The filter sieve 23 can be beaten and shaken off by the shaking assembly so that the on the filter screen 23 adhering dust can fall off and clogging of the filter screen 23 can be prevented.

It is preferably provided that a conical smoke inlet 17th at the junction between the lower end of the flue gas outlet pipe 4th and the sedimentation tank 1 is provided, the conical smoke inlet 17th is located directly below the shaking assembly. This leads to the conical smoke inlet 17th the pressure of the air flow increases and on the shovel 21 the shaking assembly blows to rotate.

The functional principle of the utility model is as follows: The soot-containing air can pass through the flue gas inlet 3 into the flue gas inlet pipe 13th are fed in, so that the soot-containing air flow into the sedimentation tank 1 enters and that into the sedimentation tank 1 Incoming flue gas through several settling chambers 14th occurs and repeats with the first partition plate 15th and the second partition plate 16 collided. The continuous collision makes it easier for soot to settle, which improves the settling effect. In addition, by providing a synthetic wax layer 19th on the surfaces of the first partition plate 15th and the second partition plate 16 prevent dust from settling on the first partition plate 15th and the second partition plate 16 accumulates, and the settling effect is ensured. At the same time, the waste heat recovery mechanism can remove the waste heat from the flue gas inlet pipe 13th win back. With the circulation water pump 7th can the water in the circulation water tank 5 pumped out and into the upper annular water storage seat 11 are promoted, and then occurs in several groups of heat-conducting water pipes 10 for waste heat recovery and is finally passed through the lower ring-shaped water storage seat 9 and the water return pipe 8th into the circulation water tank 5 returned, which offers a certain environmental protection effect. The air flow after the dust precipitation occurs through the cone-shaped smoke inlet 17th into the flue gas outlet pipe 4th one, and the conical smoke inlet 17th increases the pressure of the airflow and blows on the shovel 21 the shaking assembly to turn. While the shovel 21 turns, touches it through the rubber impact block 22nd the rubber force strip 12th on the filter screen 23 . Thus, the filter screen 23 beaten and shaken off, so that the on the filter screen 23 adhering dust falls off. This will prevent the filter screen 23 clogged and continuous filtering can be performed. At the same time, the activated carbon filter arrangement 18th filter and clean the flue gas, the cleanliness of the flue gas flow is therefore increased and operation is made easier.

List of reference symbols

1

Sedimentation tank,

2

Dedusting door,

3rd

Flue gas inlet,

4th

Flue gas outlet,

5

Circulation water tank,

6th

Water inlet pipe,

7th

Circulation water pump,

8th

Water return pipe;

9

lower annular water storage seat,

10

heat conducting water pipe,

11

upper annular water storage seat.

12th

Rubber tension strips,

13th

Flue gas inlet pipe;

14th

Settling chamber;

15th

first partition plate.

16

second partition plate,

17th

conical smoke inlet,

18th

Activated carbon filter arrangement,

19th

synthetic wax layer,

20th

Rotating shaft,

21

Shovel,

22nd

Rubber impact block,

23

Filter screen.

Claims (10)

Soot settling device for thermal power station, characterized , comprising a settling tank (1), a flue gas inlet (3), a flue gas outlet pipe (4) and a flue gas inlet pipe (13), the flue gas outlet pipe (4) and the flue gas inlet pipe (13) on two sides of the upper End of the sedimentation tank (1) are located, and the flue gas outlet pipe (4) and the flue gas inlet pipe (13) both communicate with the interior of the sedimentation tank (1), the flue gas inlet (3) is placed on the top of the flue gas inlet pipe (13), a waste heat recovery mechanism the side wall of the flue gas inlet pipe (13) is provided, a soot settling arrangement is arranged within the settling tank (1) Filter mechanism is arranged within the flue gas outlet pipe (4), a shaking device is provided below the filter mechanism, a circulating water tank (5) is provided at the upper end of the settling tank (1), the waste heat recovery mechanism communicates with the circulating water tank (5), on one side of the settling tank ( 1) a dedusting door (2) is provided, and the dedusting door (2) is connected to the sedimentation tank (1) in a sealing manner. Soot settling device for thermal power station according to Claim 1 , characterized in that the soot settling arrangement comprises a first separating plate (15) and a second separating plate (16), the first separating plate (15) being fixedly connected to the inner upper end of the settling tank (1), and a gap between the first separating plate (15) and the inner lower end of the sedimentation tank (1) is present, while the second partition plate (16) is firmly connected to the inner lower end of the sedimentation tank (1), and a gap between the second partition plate (16) and the inner one upper end of the sedimentation tank (1) is present. Soot settling device for thermal power station according to Claim 2 , characterized in that there are several groups of the first separating plate (15) and the second separating plate (16), several groups of the first separating plate (15) and the second separating plate (16) being arranged offset, and several groups of the first separating plate (15) and the second partition plate (16) divide the settling tank (1) into several settling chambers (14), two adjacent groups of settling chambers (14) communicating with one another. Soot settling device for thermal power station according to Claim 2 , characterized in that one end of the first partition plate (15) is rounded, and two sides of the first partition plate (15) are each provided with a synthetic wax layer (19); that the second partition plate (16) has the same structure as the first partition plate (15). Soot settling device for thermal power station according to Claim 1 , characterized in that the waste heat recovery mechanism comprises a lower annular water storage seat (9), a thermally conductive water pipe (10) and an upper annular water storage seat (11), the lower annular water storage seat (9) and the upper annular water storage seat (11) each at the upper and lower side walls of the flue gas inlet pipe (13) are placed, and two ends of the heat-conducting water pipe (10) each communicate with the interior of the lower annular water storage seat (9) and the upper annular water storage seat (11). Soot settling device for thermal power station according to Claim 5 , characterized in that several groups of the thermally conductive water pipes (10) are present, with several groups of the thermally conductive water pipes (10) being arranged in the circumferential direction between the lower annular water storage seat (9) and the upper annular water storage seat (11). Soot settling device of a thermal power plant according to Claim 1 characterized in that the circulating water tank (5) is provided with a circulating water pump (7), a water inlet of the circulating water pump (7) communicating with the interior of the circulating water tank (5) via pipes, and the water outlet of the circulating water pump (7) with a water inlet pipe (6) is connected, the water inlet pipe (6) communicates with the inner of the upper annular water storage seat (11), a water return line (8) is connected to one side of the lower end of the circulating water tank (5), one end of the water return line (8) is connected communicate with the interior of the lower annular water storage seat (9). Soot settling device for thermal power station according to Claim 1 , characterized in that the filter mechanism comprises a filter screen (23) and an activated carbon filter arrangement (18), the filter screen (23) being fixedly attached in the flue gas outlet pipe (4), the activated carbon filter arrangement (18) being attached to the outlet opening of the flue gas outlet pipe (4) . Soot settling device for thermal power station according to Claim 1 , characterized in that the shaking assembly comprises a rotary shaft (20), a shovel (21) and a rubber impact block (22), the rotary shaft (20) being rotatably mounted in the flue gas outlet pipe (4), the shovel (21) fixed to the side wall is attached to the rotating shaft (20), the rubber impact block (22) is fixedly attached to the bucket (21), and the rubber impact block (22) contacts a rubber tension strip (12) at the lower end of the filter screen (23). Soot settling device for thermal power station according to Claim 1 , characterized in that a conical smoke inlet (17) is provided at the connection point between the lower end of the smoke gas outlet pipe (4) and the settling tank (1), the conical smoke inlet (17) being located directly below the shaking device.

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