CN218409995U - High-efficiency ultralow-emission heat accumulating type combustion boiler - Google Patents

Abstract

The utility model relates to a boiler technical field just discloses a high-efficient ultralow heat accumulation formula combustion boiler that discharges, including combustion boiler, combustor, defeated cigarette end pipe, one side of combustion boiler and one side fixed mounting of combustor, the top of the combustion boiler other end and the bottom fixed mounting of defeated cigarette end pipe. The utility model discloses the curved pipe of first transition that sets up, sealed negative pressure drainage device, the curved pipe cooperation of second transition is assembled the back, can form canned type drainage pipeline, in the follow-up use, can seal the negative pressure drainage to the flue gas that burning boiler operation produced, greatly reduced flue gas leakage's probability when realizing the same effect with the aspiration pump, and more specifically first transition curved pipe is with the fan blade group department of the inside rotatory operation of flue gas slope water conservancy diversion to sealed negative pressure drainage device, more at the flue gas volumn, when self velocity of flow accelerates, can produce the rotatory effect of supplementary fan blade group, reduce the operation load of the inside servo motor of sealed negative pressure drainage device.

Description

High-efficiency ultralow-emission heat accumulating type combustion boiler

Technical Field

The utility model relates to a boiler technical field specifically is a heat accumulation formula burning boiler is discharged to high-efficient minimum.

Background

The boiler is an energy conversion device, the energy input to the boiler has chemical energy and electric energy in fuel, the boiler outputs steam, high-temperature water or organic heat carrier with certain heat energy, and along with the continuous development of science and technology, the boiler gradually extends to various types, such as the existing power station boiler, industrial boiler, special boiler and the like, wherein the power station boiler is one of the main operation devices of the thermal power plant, and can be further refined into a heat accumulation type combustion boiler, and along with the gradual increase of the environmental treatment intensity in China, the operation requirements of 'near zero emission', 'ultra-clean emission' and 'green power generation' are provided, namely, the emission of smoke pollutants in the thermal power plant reaches the emission level of the existing gas turbine generator set, namely SO2 is less than 35mg/m3, NOx is less than 50mg/m3 and smoke is less than 5mg/m3, further, deep desulfurization, deep denitration and deep dust removal are required to be carried out on the smoke generated in the operation of the heat accumulation type combustion boiler, but the air suction pump used in the smoke drainage process of the existing heat accumulation type combustion boiler has a great possibility of smoke leakage phenomenon, pollutes the working environment, and secondly, the smoke drainage treatment is not pretreated the smoke drainage process, and the smoke flowing of the smoke and the whole steam and the inner wall can be continuously used in the smoke drainage process, and the smoke can be influenced by the whole steam particles.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a high-efficient ultralow heat accumulation formula combustion boiler that discharges has solved the problem that above-mentioned background art provided.

The utility model provides a following technical scheme: the utility model provides a high-efficient ultralow emission heat accumulation formula boiler that discharges, includes boiler, combustor, defeated cigarette end pipe, one side of boiler and one side fixed mounting of combustor, the top of the boiler other end and the bottom fixed mounting of defeated cigarette end pipe, the first curved pipe of transition of one end fixedly connected with of defeated cigarette end pipe, the sealed negative pressure drainage device of the one end fixedly connected with of the curved pipe of first transition, and the curved pipe of one side fixedly connected with second transition of sealed negative pressure drainage device, the one end surface of the curved pipe of second transition is provided with respectively and filters box and solid filtration structure, and the fixed inboard of cup jointing in the bottom of the filter box of solid filtration structure, the inboard at filter box top is fixed the gas-supply pipe of having cup jointed the both sides at filter box top are all fixed the liquid filtration structure of having cup jointed.

Carefully selecting, the one end fixedly connected with backward flow valve pipe of the curved pipe of second transition, and the one end of backward flow valve pipe respectively fixed mounting have regulation and control valve and mix the wind ware, mix the top of wind ware and combustor air inlet port fixed connection together.

Carefully, sealed negative pressure drainage device's inside is including negative pressure box, bevel gear case, fan blade group, and the fixed cover in inside of negative pressure box one side has connect the baffle, bevel gear case's input and output run through the inner wall protrusion of negative pressure box top one side respectively with the mode of joint and run through baffle and protrusion, and bevel gear case's input installs the sealing washer for the secondary shaft in the department that runs through of the inner wall of negative pressure box top one side, and bevel gear case's output and the department that runs through of baffle install the sealing washer for the primary shaft, the activity of fan blade group is cup jointed in the inboard of negative pressure box, and one side of fan blade group and bevel gear case's output fixed connection, bevel gear case's input fixedly connected with servo motor.

Carefully, fixed mounting has the support between servo motor's the surface and the top surface of negative pressure box, and the bottom surface fixedly connected with support frame of negative pressure box, the hole of stepping down has been seted up to the inboard of support frame bottom, the fixed cover of the opposite side of negative pressure box bottom and the one end of first transition bent pipe connects, and the one end of first transition bent pipe is the slope structure and extends to the inner wall of negative pressure box, the incline direction of first transition bent pipe slope structure tends to the center of fan blade group.

Carefully, the solid filtration comprises filtration plate frame and filter screen, and the fixed cover of filter screen connects in the inboard of filtering the plate frame, filter the fixed inboard of cup jointing in filtering the bottom half of the case of plate frame, the inboard at filtration plate frame middle part connects with the fixed cover of one end of the curved pipe of second transition, and the one end of the curved pipe of second transition extends to the bottom of filtering the plate frame, the fixed cover of inboard at filtration box middle part has connect the baffle.

The choice, liquid filtration comprises liquid filter box and secondary gas transmission pipe fitting, and the fixed bottom that connects at the inboard of baffle and extend to the baffle of the one end of secondary gas transmission pipe fitting, the middle part fixed mounting of secondary gas transmission pipe fitting one side has the check valve, and the fixed inboard at liquid filter box of fixed the cup jointing of the other end of secondary gas transmission pipe fitting, liquid filter box's top is provided with fluid infusion pipe fitting and level gauge respectively, and the fixed inboard at filter box top of cup jointing in top of level gauge, and the inboard of liquid filter box is extended to the bottom of level gauge, the fluid infusion pipe fitting comprises fluid infusion pipe and sealed lid, and the fixed inboard at filter box top of cup jointing in bottom of fluid infusion pipe, the top and the sealed threaded connection of lid of fluid infusion pipe.

Compared with the prior art, the utility model discloses possess following beneficial effect:

1. the utility model discloses the curved pipe of first transition that sets up, sealed negative pressure drainage device, the curved pipe cooperation of second transition is assembled the back, can form canned type drainage pipeline, in the follow-up use, can seal the negative pressure drainage to the flue gas that burning boiler operation produced, greatly reduced flue gas leakage's probability when realizing the same effect with the aspiration pump, and more specifically first transition curved pipe is with the fan blade group department of the inside rotatory operation of flue gas slope water conservancy diversion to sealed negative pressure drainage device, more at the flue gas volumn, when self velocity of flow accelerates, can produce the rotatory effect of supplementary fan blade group, reduce the operation load of the inside servo motor of sealed negative pressure drainage device.

2. The utility model discloses the filtration box that sets up, the solid filtration structure, the liquid filtration structure, the gas-supply pipe, the fluid infusion pipe fitting, the level gauge cooperation is assembled the back, can form preprocessing device, and then under the condition that is close the pipeline of combustion boiler flue gas drainage, with the cooperation of foretell canned type drainage pipeline, carry out admittedly to the flue gas of preliminary drainage, liquid, the independent separation of gas three filters, avoid inside vapor of flue gas and solid waste particle adhesion at follow-up flue gas pipeline inner wall, maintain the result of use that lasts of whole equipment.

Drawings

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

FIG. 2 is a schematic cross-sectional view of the sealed negative pressure drainage device of the present invention;

FIG. 3 is a schematic cross-sectional view of the filtering box of the present invention;

FIG. 4 is a schematic cross-sectional view of a liquid filtration structure of the present invention;

fig. 5 is a schematic top view of the filtering box of the present invention.

In the figure: 1. a combustion boiler; 2. a burner; 3. a smoke delivery end pipe; 4. a first transition curved pipe; 5. sealing the negative pressure drainage device; 51. a negative pressure box body; 52. a bevel gear box; 53. a fan blade group; 54. a seal ring for the first shaft; 55. a servo motor; 56. a seal ring for the second shaft; 6. a second transition curved tube; 7. a filter box body; 8. a solid filtration structure; 81. a filter frame plate; 82. a filter screen; 9. a liquid filtering structure; 91. a liquid filtration tank; 92. a secondary gas transmission pipe fitting; 10. liquid supplementing pipe fittings; 11. a gas delivery pipe; 12. a liquid level meter; 13. a support frame; 14. a return valve tube; 15. a regulating valve; 16. an air mixer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 and 2, a high-efficiency ultra-low emission heat accumulating type combustion boiler comprises a combustion boiler 1, a burner 2 and a smoke conveying end pipe 3, wherein one side of the combustion boiler 1 is fixedly installed with one side of the burner 2, the top of the other end of the combustion boiler 1 is fixedly installed with the bottom of the smoke conveying end pipe 3, one end of the smoke conveying end pipe 3 is fixedly connected with a first transition curved pipe 4, one end of the first transition curved pipe 4 is fixedly connected with a sealing negative pressure drainage device 5, the sealing negative pressure drainage device 5 comprises a negative pressure box body 51, a bevel gear box 52 and a fan blade group 53, a partition plate is fixedly sleeved inside one side of the negative pressure box body 51, an input end and an output end of the bevel gear box 52 respectively penetrate through the inner wall of one side of the top of the negative pressure box body 51 in a clamping manner and penetrate through the partition plate and protrude, and the input end of the bevel gear box 52 is provided with a sealing ring 56 for a second shaft at the penetrating position of the inner wall of one side of the top of the negative pressure box body 51, the output end of the bevel gear box 52 is provided with a sealing ring 54 for a first shaft at the penetrating position of the partition plate, the fan blade group 53 is movably sleeved at the inner side of the negative pressure box body 51, one side of the fan blade group 53 is fixedly connected with the output end of the bevel gear box 52, the input end of the bevel gear box 52 is fixedly connected with a servo motor 55, and after the first transition curved tube 4 and the sealing negative pressure drainage device 5 are assembled in a matching manner, a sealing type drainage pipeline structure can be formed, in the subsequent use process, the sealing negative pressure drainage can be carried out on the smoke generated in the operation of the combustion boiler 1, the same effect as that of an air suction pump is achieved, and the probability of smoke leakage is greatly reduced.

Referring to fig. 2, a support is fixedly installed between the surface of the servo motor 55 and the top surface of the negative pressure box 51, the bottom surface of the negative pressure box 51 is fixedly connected with the support frame 13, the inner side of the bottom of the support frame 13 is provided with a relief hole, the other side of the bottom of the negative pressure box 51 is fixedly connected with one end of the first transition curved pipe 4 in a fixed sleeve manner, one end of the first transition curved pipe 4 is of an inclined structure and extends to the inner wall of the negative pressure box 51, the inclined direction of the inclined structure of the first transition curved pipe 4 tends to the center of the fan blade group 53, the first transition curved pipe 4 guides the flue gas to the fan blade group 53 for internal rotation operation of the sealed negative pressure drainage device 5 in an inclined manner, and when the flue gas volume is large and the flow rate is accelerated, the effect of assisting the rotation of the fan blade group 53 can be generated, and the operation load of the servo motor 55 in the sealed negative pressure drainage device 5 can be reduced.

Referring to fig. 1, a second transition curved pipe 6 is fixedly connected to one side of a sealed negative pressure drainage device 5, a backflow valve pipe 14 is fixedly connected to one end of the second transition curved pipe 6, a regulating valve 15 and an air mixer 16 are respectively and fixedly installed at one end of the backflow valve pipe 14, the top of the air mixer 16 is fixedly connected to an air inlet port of a combustor 2, after the backflow valve pipe 14, the regulating valve 15 and the air mixer 16 are assembled in a matched manner, part of flue gas generated by operation of the combustion boiler 1 is mainly water vapor, carbon dioxide and nitrogen gas, and is led out and returned to the combustor 2 to be mixed with fresh air for combustion, the temperature of recirculated flue gas is much lower than the temperature of flame in a hearth of the combustion boiler 1, the temperature in the hearth of the combustion boiler 1 can be remarkably reduced, and the heat intensity of the volume of the hearth of the combustion boiler 1 is reduced. Meanwhile, because the oxygen content of the introduced flue gas is extremely low, the oxygen concentration in the hearth of the combustion boiler 1 can be effectively reduced in the hearth of the combustion boiler 1, and the formation of NOx is effectively inhibited.

Referring to fig. 3, 4 and 5, a filtering box 7 and a solid filtering structure 8 are respectively disposed on one end surface of the second transition curved pipe 6, the solid filtering structure 8 is fixedly sleeved on the inner side of the bottom of the filtering box 7, the inner side of the top of the filtering box 7 is fixedly sleeved with the gas pipe 11, the solid filtering structure 8 is composed of a filtering frame plate 81 and a filtering net 82, the filtering net 82 is fixedly sleeved on the inner side of the filtering frame plate 81, the filtering frame plate 81 is fixedly sleeved on the inner side of the bottom of the filtering box 7, the inner side of the middle part of the filtering frame plate 81 is fixedly sleeved with one end of the second transition curved pipe 6, one end of the second transition curved pipe 6 extends to the bottom of the filtering frame plate 81, the inner side of the middle part of the filtering box 7 is fixedly sleeved with a partition plate, and the solid filtering structure 8 can independently filter solid particles in flue gas.

Referring to fig. 3, 4 and 5, the liquid filtering structure 9 is fixedly sleeved on both sides of the top of the filtering box 7, the liquid filtering structure 9 is composed of a liquid filtering box 91 and a secondary gas transmission pipe 92, one end of the secondary gas transmission pipe 92 is fixedly sleeved on the inner side of the partition and extends to the bottom of the partition, a check valve is fixedly installed in the middle of one side of the secondary gas transmission pipe 92, the other end of the secondary gas transmission pipe 92 is fixedly sleeved on the inner side of the liquid filtering box 91, the top of the liquid filtering box 91 is respectively provided with a liquid supplementing pipe 10 and a liquid level meter 12, the top of the liquid level meter 12 is fixedly sleeved on the inner side of the top of the filtering box 7, the bottom of the liquid level meter 12 extends to the inner side of the liquid filtering box 91, fluid infusion pipe fitting 10 comprises fluid infusion pipe and sealed lid, and the fixed inboard at filter box 7 top of cup jointing in bottom of fluid infusion pipe, the top and the sealed threaded connection that covers of fluid infusion pipe, foretell filter box 7, solid filtration structure 8, liquid filtration structure 9, the gas-supply pipe 11, fluid infusion pipe fitting 10, the back is assembled in the 12 cooperation of level gauge, can form preprocessing device, and then under the condition of being close to the pipeline of 1 flue gas drainage of combustion boiler, with foretell drainage pipeline cooperation, carry out admittedly to the flue gas of preliminary drainage play, liquid, the independent separation of gas three filters, avoid inside vapor of flue gas and solid waste particle adhesion at follow-up flue gas pipeline inner wall, maintain the continuous result of use of whole equipment.

The working principle is as follows: in the using process, the smoke generated by the operation of the combustion boiler 1 enters the negative pressure box body 51 in the sealed negative pressure drainage device 5 through the first transition curved pipe 4, and then negative pressure drainage is performed by matching of all parts in the sealed negative pressure drainage device 5, the specific operation is that the servo motor 55 is started, the servo motor 55 performs power steering conduction through the bevel gear box 52, and then the fan blade group 53 is driven to rotate synchronously, and the fan blade group 53 rotates and blows the airflow in the negative pressure box body 51 to the inside of the second transition curved pipe 6, and because of the integral sealing reason of the negative pressure box body 51, the fan blade group 53 rotates and drives the airflow to flow, so that the negative pressure drainage effect is generated, the smoke generated by the operation of the combustion boiler 1 continuously enters the inside of the negative pressure box body 51 through the first transition curved pipe 4, and finally the smoke drainage effect is realized, and the second shaft is provided with the sealing ring 56 and the bevel gear box 52, the sealing performance is ensured while the rotation operation of the servo motor 55 is ensured;

the flue gas entering the inside of the second transition curved pipe 6 is guided to the inner side of the bottom of the filtering box body 7 by the second transition curved pipe 6, then the flue gas moves upwards to pass through the solid filtering structure 8, the solid particles in the flue gas are filtered by the filtering net 82 in the solid filtering structure 8, the flue gas after primary filtering continues to move upwards to enter the liquid filtering box 91 through the secondary gas transmission pipe 92 in the liquid filtering structure 9, the check valve arranged in the middle of the secondary gas transmission pipe 92 keeps long open, the flue gas enters the liquid filtering box 91, the water vapor in the flue gas is filtered, then the gas which is not dissolved in the processing solution continues to move upwards to enter the subsequent flue gas drainage pipe through the gas transmission pipe 11, and the flue gas flows to the processing equipment for deep desulfurization, deep denitration and deep dedusting.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Simultaneously in the utility model discloses an in the drawing, fill the pattern and just do not do any other injecions for distinguishing the picture layer.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a high-efficient ultralow emission heat accumulation formula boiler that burns, includes boiler (1), combustor (2), defeated cigarette end pipe (3), one side of boiler (1) and one side fixed mounting of combustor (2), the top of the boiler (1) other end and the bottom fixed mounting of defeated cigarette end pipe (3), its characterized in that: defeated first transition curved pipe (4) of one end fixedly connected with of cigarette end pipe (3), the sealed negative pressure drainage device (5) of one end fixedly connected with of first transition curved pipe (4), and one side fixedly connected with second transition curved pipe (6) of sealed negative pressure drainage device (5), the one end surface of second transition curved pipe (6) is provided with respectively filters box (7) and solid filtration (8), and solid filtration (8) are fixed cup joints the inboard in filtering box (7) bottom, the inboard fixed cup joint at filtering box (7) top has gas-supply pipe (11), the both sides at filtering box (7) top are all fixed and have cup jointed liquid filtration (9).

2. A high efficiency ultra low emission regenerative combustion boiler in accordance with claim 1, wherein: one end fixedly connected with backward flow valve pipe (14) of second transition bent pipe (6), and the one end of backward flow valve pipe (14) respectively fixed mounting have regulation and control valve (15) and air mixer (16), the top of air mixer (16) is in the same place with combustor (2) air inlet port fixed connection.

3. A high efficiency ultra low emission regenerative combustion boiler in accordance with claim 1, wherein: the inside of sealed negative pressure drainage device (5) is including negative pressure box (51), bevel gear case (52), fan blade group (53), and the fixed baffle that has cup jointed in inside of negative pressure box (51) one side, the input and the output of bevel gear case (52) run through the inner wall protrusion of negative pressure box (51) top one side respectively with the mode of joint and run through the baffle and the protrusion, and the input of bevel gear case (52) installs sealing washer (56) for the second shaft in the department of running through of the inner wall of negative pressure box (51) top one side, and sealing washer (54) for the primary shaft are installed with the department of running through of baffle to the output of bevel gear case (52), fan blade group (53) activity cup joints the inboard at negative pressure box (51), and the one side of fan blade group (53) and the output fixed connection of bevel gear case (52), the input fixedly connected with servo motor (55) of bevel gear case (52).

4. A high efficiency ultra low emission regenerative combustion boiler in accordance with claim 3, wherein: the utility model discloses a fan blade group's structure, including servo motor (55), negative pressure box (51), support, first transition bent pipe (4), the inboard of support (13) bottom has seted up the hole of stepping down, the opposite side of negative pressure box (51) bottom is fixed with the fixed cover of one end of first transition bent pipe (4) and is connect, and the one end of first transition bent pipe (4) is the inclined structure and extends to the inner wall of negative pressure box (51), the incline direction of first transition bent pipe (4) inclined structure tends to the center of fan blade group (53).

5. A high efficiency ultra low emission regenerative combustion boiler in accordance with claim 1, wherein: the solid filtering structure (8) is composed of a filtering frame plate (81) and a filtering net (82), the filtering net (82) is fixedly sleeved on the inner side of the filtering frame plate (81), and the filtering frame plate (81) is fixedly sleeved on the bottom of the filtering box body (7)The inner side of the middle part of the filtering frame plate (81) is fixedly sleeved and connected with one end of the second transition curved pipe (6), one end of the second transition curved pipe (6) extends to the bottom of the filtering frame plate (81), and the other end of the second transition curved pipe is connected with the inner side of the middle part of the filtering frame plate (81) in a sleeved modeFilter box body (7)The inner side of the middle part is fixedly sleeved with a clapboard.

6. A high efficiency ultra low emission regenerative combustion boiler in accordance with claim 5, wherein: liquid filtration structure (9) comprise liquid filter tank (91) and secondary gas transmission pipe fitting (92), and the fixed bottom that cup joints in the inboard of baffle and extends to the baffle of one end of secondary gas transmission pipe fitting (92), the middle part fixed mounting of secondary gas transmission pipe fitting (92) one side has the check valve, and the fixed inboard that cup joints at liquid filter tank (91) of the other end of secondary gas transmission pipe fitting (92), the top of liquid filter tank (91) is provided with fluid infusion pipe fitting (10) and level gauge (12) respectively, and the fixed inboard that cup joints at filter tank (7) top in top of level gauge (12), and the bottom of level gauge (12) extends to the inboard of liquid filter tank (91), fluid infusion pipe fitting (10) comprise fluid infusion pipe and sealed lid, and the fixed inboard that cup joints at filter tank (7) top in bottom of fluid infusion pipe, the top and the sealed lid threaded connection of fluid infusion pipe.

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