Condensation variable-frequency boiler with low nitrogen

Abstract

The utility model belongs to the technical field of heat energy equipment, and particularly relates to a low-nitrogen condensation variable-frequency boiler which comprises a supporting plate, a boiler body is fixedly installed in the center of the top of the supporting plate, and a gas conveying pipeline is fixedly installed in one side of the boiler body. A condensation cavity is fixedly installed outside the end, away from the boiler body, of the gas conveying pipeline, a gas filtering box body is fixedly installed at the top of the condensation cavity, a plurality of gas filtering plates are installed in the gas filtering box body, and a first liquid conveying pipeline is fixedly installed at the bottom end in the condensation cavity; a liquid filtering box body is fixedly mounted outside one end, far away from the condensation cavity, of the first liquid conveying pipeline; when the condensation cavity recovers heat of high-temperature flue gas, generated condensate water flows into the liquid filtering box body and is comprehensively filtered by the liquid filtering plate, metal parts in the boiler can be protected against corrosion or scale deposition through filtering treatment on the condensate water, and the heat efficiency and follow-up use of the boiler are prevented from being affected.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of heat energy equipment, specifically, it is a kind of low-nitrogen condensing frequency conversion boiler. BACKGROUND

[0002] Low-nitrogen condensing frequency conversion boiler adopts low-nitrogen technology in combustion process, can effectively reduce the emission of nitrogen oxides, and nitrogen oxides are one of important substances of atmospheric pollution, especially in city and industrial area, the emission of nitrogen oxides can lead to air quality deterioration, acid rain and other environmental problems, low-nitrogen boiler can greatly reduce the emission of nitrogen oxides by optimizing combustion mode, adopting low-nitrogen oxide burner, temperature control technology etc., meet the strict regulations of national atmospheric pollutant emission.

[0003] The principle of low-nitrogen condensing frequency conversion boiler mainly involves two aspects of low-nitrogen combustion and condensing heat recovery. Through the application of accurate low-nitrogen combustion and condensing heat recovery principle, low-nitrogen condensing frequency conversion boiler can effectively reduce the emission of nitrogen oxides in boiler, and provide strong support to meet strict environmental regulations.

[0004] The existing low-nitrogen condensing frequency conversion boiler can condense water vapor in high-temperature flue gas into condensate water in use process, and there are various impurities in condensate water, if these impurities are not effectively treated, it can cause the corrosion or incrustation of metal parts inside boiler, thereby affecting the thermal efficiency of boiler;Therefore, in view of the above problems, a kind of low-nitrogen condensing frequency conversion boiler is proposed. INVENTION CONTENTS

[0005] In order to make up for the deficiency of prior art, the existing low-nitrogen condensing frequency conversion boiler can condense water vapor in high-temperature flue gas into condensate water in use process, and there are various impurities in condensate water, if these impurities are not effectively treated, it can cause the corrosion or incrustation of metal parts inside boiler, thereby affecting the thermal efficiency of boiler;Therefore, in view of the above problems, a kind of low-nitrogen condensing frequency conversion boiler is proposed.

[0006] The utility model solves its technical problem adopts technical scheme, which is a kind of low-nitrogen condensation variable frequency boiler, including support plate, the top central position fixed mounting of support plate has boiler main body, the inside fixed mounting of one side of boiler main body has gas pipeline, the outside fixed mounting of one end of gas pipeline far from boiler main body has condensation cavity, the top fixed mounting of condensation cavity has gas filter box, the inside installation of gas filter box has a plurality of gas filter plates, the inside bottom end fixed mounting of condensation cavity has first liquid pipeline, the outside fixed mounting of one end of first liquid pipeline far from condensation cavity has liquid filter box, the inside installation of liquid filter box has a plurality of liquid filter plates, the inside bottom end fixed mounting of liquid filter box has second liquid pipeline, the outside fixed mounting of one end of second liquid pipeline far from liquid filter box has water storage tank, the outside fixed mounting of water storage tank has water quality detector, the detection end of water quality detector is located inside water storage tank, the inside fixed mounting of one side of water storage tank has third liquid pipeline, the outside fixed mounting of one end of third liquid pipeline far from water storage tank has first water pump, the output outside of first water pump is equipped with water supply tank, the input of first water pump is connected with one end of third liquid pipeline, the bottom fixed mounting of water supply tank is on the top of support plate, when condensation cavity carries out heat recovery to high-temperature flue gas, the condensate produced will flow into the inside of liquid filter box and be filtered by a plurality of liquid filter plates, after filtering, by second water pump, is sent to the inside of water supply tank and is recycled, by the filtration treatment of condensate, the metal parts inside boiler can be protected from corrosion or fouling, to avoid affecting the thermal efficiency of boiler and subsequent use.

[0007] Preferably, a plurality of chutes are formed in the inside of the liquid filter box and the gas filter box, a plurality of sliding tracks are fixedly installed in the inside of the plurality of chutes, sliding blocks are slidably installed on the outside of the sliding tracks, and the outside of the plurality of sliding blocks is fixedly installed on the outside of the two sides of the liquid filter plate and the gas filter plate, respectively.

[0008] Preferably, the top of the water supply tank is provided with a water supply opening, the inside top end of the water supply tank is fixedly installed with a connecting pipe, the outer end of the connecting pipe away from the water supply tank is fixedly installed with a second water pump, the output end of the second water pump is installed in the inside of the boiler main body, and the input end of the second water pump is connected with one end of the connecting pipe.

[0009] Preferably, the top end of the support plate is fixedly installed with a burner, and the output end of the burner is installed in the inside of the boiler main body.

[0010] Preferably, the top end of the support plate is fixedly installed with a control panel, and the control panel is electrically connected with the burner, the water quality detector, the first water pump and the second water pump respectively.

[0011] Preferably, the top of the gas filter box body is fixedly installed with a gas supply pipeline, and the high-temperature gas filtered in the inside can be conveyed to other areas for use through the connection of the gas supply pipeline with other pipelines.

[0012] The low-nitrogen condensation frequency conversion boiler has the advantages that:

[0013] When the condensation cavity recovers heat from high-temperature flue gas, the generated condensate water flows into the inside of the liquid filter box body and is comprehensively filtered by the plurality of liquid filter plates. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below are only some of the embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor are within the scope of protection of the present application.

[0015] Figure 1 It is a low-nitrogen condensing variable frequency boiler external structure schematic diagram;

[0016] Figure 2 It is a low-nitrogen condensing variable frequency boiler external structure schematic diagram;

[0017] Figure 3 It is a circulating mechanism external structure schematic diagram;

[0018] Figure 4 It is a liquid filter box body expanded structure schematic diagram;

[0019] Figure 5 It is a gas filter box body expanded structure schematic diagram;

[0020] In the figure: 1, support plate; 2, boiler main body; 3, gas pipeline; 4, condensing cavity; 5, first liquid pipeline; 6, liquid filter box body; 7, chute; 8, sliding rail; 9, sliding block; 10, liquid filter plate; 11, second liquid pipeline; 12, burner; 13, water storage tank; 14, water quality detector; 15, third liquid pipeline; 16, first water pump; 17, control panel; 18, connecting pipe; 19, second water pump; 20, water inlet; 21, gas filter box body; 22, gas filter plate; 23, gas pipeline; 24, water supply tank. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor are within the scope of protection of the present application.

[0022] Please refer to Figures 1-5As shown, a low-nitrogen condensing frequency conversion boiler, including a support plate 1, the top of the support plate 1 is fixedly installed with a boiler body 2, one side of the boiler body 2 is fixedly installed with a gas pipeline 3, the outer end of the gas pipeline 3 away from the boiler body 2 is fixedly installed with a condensation cavity 4, the top of the condensation cavity 4 is fixedly installed with a gas filter box 21, a plurality of gas filter plates 22 are installed in the gas filter box 21, the inner bottom end of the condensation cavity 4 is fixedly installed with a first liquid pipeline 5, the outer end of the first liquid pipeline 5 away from the condensation cavity 4 is fixedly installed with a liquid filter box 6, a plurality of liquid filter plates 10 are installed in the liquid filter box 6, the inner bottom end of the liquid filter box 6 is fixedly installed with a second liquid pipeline 11, the outer end of the second liquid pipeline 11 away from the liquid filter box 6 is fixedly installed with a water storage tank 13, a water quality detector 14 is fixedly installed on the outer side of the water storage tank 13, the detection end of the water quality detector 14 is arranged in the water storage tank 13, a third liquid pipeline 15 is fixedly installed on one side of the inner side of the water storage tank 13, the outer end of the third liquid pipeline 15 away from the water storage tank 13 is fixedly installed with a first water pump 16, the output end of the first water pump 16 is provided with a water supply tank 24, the input end of the first water pump 16 is connected with one end of the third liquid pipeline 15, and the bottom of the water supply tank 24 is fixedly installed on the top of the support plate 1; When the existing low-nitrogen condensing frequency conversion boiler is running, a large amount of condensate water is generated, because there are various impurities in the condensate water, when it contacts the inner wall of the boiler, the problem of corrosion or fouling of the metal parts in the boiler will occur, in order to treat the condensate water, the water in the water supply tank 24 is transported into the boiler body 2 by the second water pump 19, then the burner 12 is started to heat the inside of the boiler body 2, the high-temperature flue gas generated when the burner 12 heats the inside of the boiler body 2 will enter the inside of the condensation cavity 4 through the gas pipeline 3 for heat recovery, and the condensate water generated during heat recovery will enter the inside of the liquid filter box 6 and be filtered by the plurality of liquid filter plates 10, finally realizing the effect of more comprehensively removing the impurities in the condensate water, after the filtration is completed, the condensate water will flow into the water storage tank 13, at this time the water quality detector 14 connected with the inside of the water storage tank 13 will detect the condensate water in the water storage tank 13, when the detection is qualified, the second water pump 19 will be instructed by the control panel 17, finally the condensate water is transported into the water supply tank 24 for recycling, saving water resources, and the high-temperature flue gas after heat recovery will be transported into the inside of the gas filter box 21 for filtration.

[0023] The inside of the liquid filter box 6, the gas filter box 21 is provided with a plurality of chutes 7, a plurality of The inside of the sliding track 8 fixedly installed with a plurality of sliding blocks 9, The outside of the sliding track 8 is slidably installed with a sliding block 9, The outside of a plurality of sliding blocks 9 is fixedly installed on the outside of the liquid filter plate 10, the gas filter plate 22 respectively; When working, the existing low-nitrogen condensation frequency conversion boiler can produce a large amount of condensate water when running, because there are many impurities in the condensate water, when it contacts the inner wall of the boiler, the problem of corrosion or fouling of the metal parts in the boiler will occur, in order to treat the condensate water, the liquid filter plate 10, the gas filter plate 22 can be quickly taken out through the sliding installation of the sliding track 8 and the sliding block 9.

[0024] The top of the water supply tank 24 is provided with a water supply port 20, and the inside of the water supply tank 24 is fixedly installed with a connecting pipe 18, and the one end of the connecting pipe 18 away from the water supply tank 24 is fixedly installed with a second water pump 19, and the output end of the second water pump 19 is installed in the inside of the boiler main body 2, and the input end of the second water pump 19 is connected with one end of the connecting pipe 18; When working, the existing low-nitrogen condensation frequency conversion boiler can produce a large amount of condensate water when running, because there are many impurities in the condensate water, when it contacts the inner wall of the boiler, the problem of corrosion or fouling of the metal parts in the boiler will occur, in order to treat the condensate water, the water in the water supply tank 24 is sent to the inside of the boiler main body 2 for heating through the second water pump 19.

[0025] The top of the support plate 1 is fixedly installed with a burner 12, and the output end of the burner 12 is installed in the inside of the boiler main body 2; When working, the existing low-nitrogen condensation frequency conversion boiler can produce a large amount of condensate water when running, because there are many impurities in the condensate water, when it contacts the inner wall of the boiler, the problem of corrosion or fouling of the metal parts in the boiler will occur, in order to treat the condensate water, the inside of the boiler main body 2 is heated by the burner 12.

[0026] The top of the support plate 1 is fixedly installed with a control panel 17, and the control panel 17 is electrically connected with the burner 12, the water quality detector 14, the first water pump 16 and the second water pump 19 respectively; When working, the existing low-nitrogen condensation frequency conversion boiler can produce a large amount of condensate water when running, because there are many impurities in the condensate water, when it contacts the inner wall of the boiler, the problem of corrosion or fouling of the metal parts in the boiler will occur, in order to treat the condensate water, the control panel 17 is used to control a plurality of equipment, which is more convenient for the operation of the low-nitrogen condensation frequency conversion boiler.

[0027] The top of the gas filtering box 21 is fixedly provided with a gas conveying pipeline 23; during operation, the existing low-nitrogen condensing variable frequency boiler produces a large amount of condensate water, and since various impurities exist in the condensate water, when the condensate water contacts the inner wall of the boiler, the problem of corrosion or fouling of the metal parts in the boiler occurs, and in order to treat the condensate water, the high-temperature gas filtered through the gas filtering box 21 can be conveyed to other areas for use through the gas conveying pipeline 23 connected between the gas filtering boxes 21.

[0028] The working principle is that when the filtering device is used to filter the condensate water generated during the use of the low-nitrogen condensing variable frequency boiler, the water in the water conveying tank 24 is transported into the boiler body 2 through the second water pump 19, and then the burner 12 is started to heat the inside of the boiler body 2, and when the burner 12 heats the inside of the boiler body 2, the high-temperature flue gas generated is introduced into the condensing cavity 4 through the gas conveying pipeline 3 for heat recovery, and the condensate water generated during the heat recovery is introduced into the liquid filtering box 6 and filtered by the plurality of liquid filtering plates 10 in stages, and the plurality of liquid filtering plates 10 are respectively filtering screen, filtering sand, activated carbon and polyester filter element, the filtering screen is used to remove the larger impurities in the condensate water, the filtering sand is used to remove the small particles or fine impurities, the activated carbon is used to remove harmful substances and odors, and the polyester filter element is used to remove the suspended matter, fine particles and scale in the condensate water, so that the condensate water is more comprehensively removed, and after the filtering is completed, the condensate water flows into the water storage tank 13, and at this time, the water quality detector 14 connected to the water storage tank 13 detects the condensate water in the water storage tank 13, and after the detection is qualified, the second water pump 19 is sent an instruction through the control panel 17, and finally the condensate water is conveyed into the water conveying tank 24 for recycling, thereby saving water resources, and the high-temperature flue gas after heat recovery is conveyed into the gas filtering box 21, and the gas filtering plate 22 which is respectively high-temperature corrosion-resistant ceramic filter material and polytetrafluoroethylene filter bag is used to filter the high-temperature flue gas, and after the filtering is completed, the high-temperature flue gas can be conveyed to different areas through the gas conveying pipeline 23 to achieve the effect of heating.

[0029] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0030] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A low nitrogen condensing variable temperature boiler, characterized by: The utility model provides a kind of boiler, including support plate (1), the top central position of support plate (1) is fixedly installed with boiler main body (2), one side inside of boiler main body (2) is fixedly installed with gas pipeline (3), the one end outside of gas pipeline (3) away from boiler main body (2) is fixedly installed with condensation cavity (4), the top of condensation cavity (4) is fixedly installed with gas filter box (21), the inside of gas filter box (21) is installed with multiple gas filter plate (22), the inside bottom end of condensation cavity (4) is fixedly installed with first liquid pipeline (5), the one end outside of first liquid pipeline (5) away from condensation cavity (4) is fixedly installed with liquid filter box (6), the inside of liquid filter box (6) is installed with multiple liquid filter plate (10), the inside bottom end of liquid filter box (6) is fixedly installed with second liquid pipeline (11), the one end outside of second liquid pipeline (11) away from liquid filter box (6) is fixedly installed with water storage tank (13), the outside of water storage tank (13) is fixedly installed with water quality detector (14), the detection end of water quality detector (14) is located inside water storage tank (13), the inside one side of water storage tank (13) is fixedly installed with third liquid pipeline (15), the one end outside of third liquid pipeline (15) away from water storage tank (13) is fixedly installed with first water pump (16), the output end outside of first water pump (16) is equipped with water supply tank (24), the input end of first water pump (16) is connected with one end of third liquid pipeline (15), the bottom of water supply tank (24) is fixedly installed on the top of support plate (1).

2. A low-nitrogen condensing variable frequency boiler according to claim 1, characterized in that: The inside of liquid filter box (6), gas filter box (21) is all equipped with multiple chutes (7), the inside of multiple chutes (7) is fixedly installed with multiple sliding tracks (8), the outside of sliding track (8) is slidably installed with sliding block (9), the outside one side of multiple sliding blocks (9) is respectively fixedly installed on the outside both sides of liquid filter plate (10), gas filter plate (22).

3. A low-nitrogen condensing variable frequency boiler according to claim 1, characterized in that: The top of water supply tank (24) is equipped with water supply opening (20), the inside top end of water supply tank (24) is fixedly installed with connecting pipe (18), the one end outside of connecting pipe (18) away from water supply tank (24) is fixedly installed with second water pump (19), the output end of second water pump (19) is installed in the inside of boiler main body (2), the input end of second water pump (19) is connected with one end of connecting pipe (18).

4. The low-nitrogen condensing variable frequency boiler according to claim 1, characterized in that: The top one end of support plate (1) is fixedly installed with combustor (12), the output end of combustor (12) is installed in the inside of boiler main body (2).

5. A low-nitrogen condensing variable frequency boiler according to claim 1, characterized in that: The top one end of support plate (1) is fixedly installed with control panel (17), control panel (17) is electrically connected between combustor (12), water quality detector (14), first water pump (16), second water pump (19) respectively.

6. A low-nitrogen condensing variable frequency boiler according to claim 1, characterized in that: The top of gas filter box (21) is fixedly installed with gas pipeline (23).

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