Natural gas boiler flue gas emission equipment

Abstract

The utility model discloses a natural gas boiler flue gas emission device, which belongs to the technical field of natural gas boiler flue gas emission, and comprises an emission filter box, a first filter mechanism and a second filter mechanism which are matched for use, and when the natural gas boiler flue gas is discharged into the emission filter box through a gas inlet, the first filter mechanism and the second filter mechanism are matched for use. The pump body pumps out water in the water tank through the water outlet and conveys the water into the branch pipe through the connecting pipe, the branch pipe distributes and conveys the water into the spraying pipe, and then the water is atomized and sprayed out through the atomizing nozzles on the top face of the spraying pipe, so that the effect of atomizing and spraying the smoke of the natural gas boiler is achieved. And meanwhile, under the action of the fan, flue gas discharged into the filter tank moves towards the right side, the flue gas sequentially penetrates through the first-stage filter screen, the second-stage filter screen and the third-stage filter screen and is effectively filtered and purified, and the filtered flue gas is discharged into air by the fan through the exhaust port.

Description

TECHNICAL FIELD

[0001] The utility model relates to natural gas boiler flue gas emission technical field, especially a kind of natural gas boiler flue gas emission equipment. BACKGROUND

[0002] Natural gas boiler is a kind of heat equipment, it uses natural gas as main fuel, generates heat energy by burning, and then heats water into steam or high-temperature water, for various production and civilian occasions.

[0003] Natural gas boiler needs to use flue gas emission equipment, mainly because natural gas will produce flue gas containing sulfide, nitride and particulate matter after burning in boiler. These flue gases, if not treated directly discharged into the atmosphere, will cause serious pollution to the environment, affect air quality, endanger human health. Therefore, in order to ensure compliance with environmental regulations, reduce the impact on the environment, natural gas boiler must be equipped with flue gas emission equipment.

[0004] In the prior art, the current natural gas boiler flue gas emission equipment will generally use desulfurization tower or dust collector and other equipment to remove pollutants in flue gas, to ensure that the discharged flue gas meets the clean standard, but the existing natural gas boiler flue gas emission equipment, such as desulfurization tower, only relies on simple spray dust removal method for treatment, resulting in poor emission treatment effect of natural gas boiler flue gas, which cannot effectively filter and purify natural gas boiler flue gas, and the flue gas discharged into the air still contains dust and other particulate matter. Although, to improve the emission treatment effect of natural gas boiler flue gas by the existing desulfurization tower, filter screen is installed at the top of the tower to further filter the flue gas, but the filter screen will be blocked after a long time of use due to dust, and it is not convenient to disassemble and clean, which will affect the filtering effect of flue gas and the exhaust efficiency. SUMMARY

[0005] The main purpose of the utility model is to provide a kind of natural gas boiler flue gas emission equipment, which can effectively solve the problems in the background art.

[0006] To achieve the above purpose, the technical scheme adopted by the utility model is:

[0007] The utility model provides a kind of natural gas boiler flue gas emission equipment, including emission filter box, the inside of the emission filter box is equipped with first filtering mechanism, and first filtering mechanism includes water tank, pump body, branch pipe, spray pipe and atomizing nozzle, the bottom surface of emission filter box is fixedly connected with water tank, and the water outlet of left side of water tank is fixedly connected with the input end of pump body, the front end wall of emission filter box is fixedly connected with branch pipe, and connecting pipe is connected between the output end of pump body and the input end of branch pipe, the output end of branch pipe is also fixedly connected with spray pipe, and the bottom surface of spray pipe is fixedly connected with several atomizing nozzles, the inside of emission filter box and located behind first filtering mechanism is also equipped with second filtering mechanism, and second filtering mechanism includes primary filter screen, secondary filter screen and tertiary filter screen, the inside of emission filter box is fixedly connected with primary filter screen, secondary filter screen and tertiary filter screen by a group of symmetrical fastening knobs in the mode from left to right.

[0008] Preferably, the left side of the emission filter box is fixedly installed with an air inlet, and the right side of the emission filter box is fixedly installed with an air outlet, and the right end of the air outlet is fixedly installed with a fan.

[0009] Preferably, the water tank is fixedly installed on the bottom surface of the emission filter box, and the left side wall bottom of the water tank is fixedly installed with a water outlet, and the bottom surface of the emission filter box and the top left side of the water tank are respectively provided with through openings in communication with each other.

[0010] Preferably, the branch pipe is fixedly installed on the left top of the front end wall of the emission filter box, and the output end of the branch pipe is fixedly installed with a spray pipe, and the spray pipe is located in the emission filter box, and the top surface of the spray pipe is further fixedly installed with several atomizing nozzles, and the input end of the pump body is fixedly installed with the water outlet, and the connecting pipe is fixedly installed between the output end of the pump body and the input end of the branch pipe.

[0011] Preferably, the top right side of the emission filter box is provided with three installation openings in a transverse array, and the top of the emission filter box and outside the installation openings is further fixedly installed with a sealing frame, the front and rear sides of the outer wall of the emission filter box are respectively fixedly installed with three groups of symmetrical connecting ears corresponding to the installation openings, and the top surface of the connecting ear is fixedly installed with a threaded short rod.

[0012] Preferably, the primary filter screen, the secondary filter screen and the tertiary filter screen are inserted and installed in the corresponding installation openings, and the top surface of the primary filter screen, the secondary filter screen and the tertiary filter screen is respectively fixedly installed with an installation plate, the top surface of the installation plate is provided with a group of symmetrical mounting holes, and the threaded short rod is inserted and installed in the mounting hole, the top surface of the fastening knob is provided with a threaded hole, and the fastening knob is threadedly connected with the threaded short rod through the threaded hole, and the top surface of the installation plate is further fixedly installed with a handle.

[0013] Compared with the prior art, the natural gas boiler flue gas spraying and filtering device has the following beneficial effects:

[0014] In the utility model, the cooperation of the discharge filter box, the first filtering mechanism and the second filtering mechanism is set, when the natural gas boiler flue gas is discharged into the discharge filter box through the air inlet, the pump body draws the water in the water tank out through the water outlet and conveys the water into the branch pipe through the connecting pipe, the branch pipe distributes and conveys the water into the spray pipe, and the water is atomized and sprayed through the atomizing nozzle on the top surface of the spray pipe, so that the natural gas boiler flue gas is atomized and sprayed, the sprayed water falls into the water tank through the through hole and is used again, under the action of the fan, the flue gas in the discharge filter box moves to the right side, sequentially passes through the first filter screen, the second filter screen and the third filter screen and is effectively filtered and purified, and after the flue gas is filtered, the flue gas is discharged into the air by the fan through the air outlet, so that after the natural gas boiler flue gas is sprayed and dedusted and then filtered through the multi-stage filter screen, the natural gas boiler flue gas can be effectively filtered and purified, the discharge treatment effect of the natural gas boiler flue gas is improved, and further, after the first filter screen, the second filter screen and the third filter screen are used for a long time, the mounting plate is no longer fixed on the top surface of the discharge filter box by rotating the fastening knob, the first filter screen, the second filter screen and the third filter screen are sequentially taken out from the discharge filter box through the mounting opening by the handle, and the first filter screen, the second filter screen and the third filter screen are cleaned, so that the problem of affecting the filtering effect due to blockage is avoided, and the first filter screen, the second filter screen and the third filter screen are conveniently disassembled and cleaned. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the whole structure schematic diagram of the utility model;

[0016] Figure 2 It is the whole structure section view of the utility model;

[0017] Figure 3 It is the whole structure schematic diagram of the discharge filter box and the water tank of the utility model;

[0018] Figure 4 It is the whole structure schematic diagram of the first filtering mechanism of the utility model;

[0019] Figure 5 It is the whole structure schematic diagram of the second filtering mechanism of the utility model.

[0020] In the figure: 1, discharge filter box; 2, first filter mechanism; 3, second filter mechanism; 4, air inlet; 5, exhaust port; 6, fan; 7, water tank; 8, water outlet; 9, through port; 10, mounting port; 11, sealing frame; 12, connecting lug; 13, threaded short rod; 14, pump body; 15, branch pipe; 16, connecting pipe; 17, spray pipe; 18, atomizing nozzle; 19, first-stage filter screen; 20, second-stage filter screen; 21, third-stage filter screen; 22, mounting plate; 23, mounting hole; 24, handle; 25, fastening knob; 26, threaded hole. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0022] As shown in Figure 1 - Figure 5 A natural gas boiler flue gas discharge equipment, including discharge filter box 1, the inside of discharge filter box 1 is equipped with first filter mechanism 2, and first filter mechanism 2 includes water tank 7, pump body 14, branch pipe 15, spray pipe 17 and atomizing nozzle 18, water tank 7 is fixedly connected to the bottom surface of discharge filter box 1, and the input end of pump body 14 is fixedly connected with water outlet 8 on the left side of water tank 7, branch pipe 15 is fixedly connected on the front end wall of discharge filter box 1, and connecting pipe 16 is connected between the output end of pump body 14 and the input end of branch pipe 15, a plurality of output ends of branch pipe 15 are also fixedly connected with spray pipe 17 respectively, and the bottom surface of spray pipe 17 is fixedly connected with a plurality of atomizing nozzles 18, the inside of discharge filter box 1 and located behind first filter mechanism 2 is also equipped with second filter mechanism 3, and second filter mechanism 3 includes first-stage filter screen 19, second-stage filter screen 20 and third-stage filter screen 21, first-stage filter screen 19, second-stage filter screen 20 and third-stage filter screen 21 are fixedly connected in the inside of discharge filter box 1 from left to right through a group of symmetrical fastening knobs 25.

[0023] As shown in Figure 2 and Figure 3 The left side of discharge filter box 1 is fixedly installed with air inlet 4, and the flue gas after being discharged by the natural gas boiler will enter discharge filter box 1 through air inlet 4 to carry out discharge treatment, and the right side of discharge filter box 1 is fixedly installed with exhaust port 5, exhaust port 5 is used for discharging the flue gas filtered in discharge filter box 1, the right end of exhaust port 5 is fixedly installed with fan 6, and fan 6 is used for accelerating the discharge speed of the flue gas filtered in discharge filter box 1.

[0024] As shown in Figure 2As shown, the water tank 7 is fixedly installed on the bottom surface of the discharge filter box 1. The water tank 7 can be used to hold water or other liquids for dust removal by spraying flue gas. The bottom of the left side wall of the water tank 7 is fixedly installed with a water outlet 8, through which the water in the water tank 7 can be discharged. The bottom surface of the discharge filter box 1 and the top left side of the water tank 7 are respectively provided with interconnected openings 9. Through the openings 9, it can be ensured that the water after spraying can re-enter the water tank 7 for recycling, thus avoiding the problem of water waste.

[0025] like Figure 2 and Figure 4 As shown, the branch pipe 15 is fixedly installed on the top left side of the front wall of the discharge filter box 1, and spray pipes 17 are fixedly installed on several output ends of the branch pipe 15. The spray pipes 17 are located inside the discharge filter box 1, and several atomizing nozzles 18 are fixedly installed on the top surface of the spray pipes 17. The input end of the pump body 14 is fixedly installed together with the water outlet 8, and a connecting pipe 16 is fixedly installed between the output end of the pump body 14 and the input end of the branch pipe 15. After the pump body 14 draws water from the water tank 7 through the water outlet 8, it is transported to the branch pipe 15 through the connecting pipe 16. The branch pipe 15 then distributes the water to the spray pipes 17. Finally, the water is atomized and sprayed into the discharge filter box 1 through the atomizing nozzles 18 on the bottom surface of the spray pipe 17, so as to achieve the purpose of spraying and dust removal of the flue gas entering the discharge filter box 1.

[0026] like Figure 3 As shown, three mounting ports 10 are arranged in a horizontal array on the right side of the top surface of the emission filter box 1. The mounting ports 10 are used to install and remove the primary filter 19, secondary filter 20 and tertiary filter 21. A sealing frame 11 is also fixedly installed on the top surface of the emission filter box 1 outside the mounting ports 10. The sealing frame 11, together with the mounting plate 22, ensures the sealing of the mounting ports 10 after the primary filter 19, secondary filter 20 and tertiary filter 21 are installed, preventing air leakage in the emission filter box 1. Three sets of symmetrical connecting ears 12 corresponding to the mounting ports 10 are fixedly installed on the front and rear sides of the outer wall of the emission filter box 1. A threaded short rod 13 is fixedly installed on the top surface of the connecting ears 12. The threaded short rod 13 installed on the top surface of the connecting ears 12 is used to install and fix the mounting plate 22 with the fastening knob 25.

[0027] like Figure 5As shown, the primary filter screen 19, the secondary filter screen 20 and the tertiary filter screen 21 are inserted and installed in the corresponding installation openings 10, and the top surface of the primary filter screen 19, the secondary filter screen 20 and the tertiary filter screen 21 is fixedly installed with the installation plate 22, a group of symmetrical installation holes 23 are formed in the top surface of the installation plate 22, and the threaded short rod 13 is inserted and installed in the installation hole 23, a threaded hole 26 is formed in the top surface of the fastening knob 25, and the fastening knob 25 is screwed together with the threaded short rod 13 through the threaded hole 26, and the top surface of the installation plate 22 is also fixedly installed with the handle 24, the primary filter screen 19, the secondary filter screen 20 and the tertiary filter screen 21 are sequentially inserted into the installation openings 10 through the handle 24 on the top surface of the installation plate 22 from left to right, and after the threaded short rod 13 passes through the installation hole 23, the fastening knob 25 is screwed onto the threaded short rod 13 through the threaded hole 26, so that the installation plate 22 can be tightly fixed on the top surface of the discharge filter box 1, and the primary filter screen 19, the secondary filter screen 20 and the tertiary filter screen 21 are fixed inside the discharge filter box 1 for use, and after the flue gas after spraying dust removal passes through the primary filter screen 19, the secondary filter screen 20 and the tertiary filter screen 21, the flue gas can be further filtered and purified, so as to improve the flue gas discharge treatment effect.

[0028] The specific use principle of the discharge filter box 1, the first filter mechanism 2 and the second filter mechanism 3 in discharging the natural gas boiler flue gas is as follows:

[0029] After the natural gas boiler flue gas enters the discharge filter box 1 through the gas inlet 4, the input end of the pump body 14 draws out the water in the discharge filter box 1 through the water outlet 8, and delivers the water to the branch pipe 15 through the connecting pipe 16 installed on the output end, and the branch pipe 15 distributes and delivers the water to the spray pipe 17, and the atomizing nozzle 18 installed on the top surface of the spray pipe 17 atomizes and sprays the water mist into the discharge filter box 1, so as to spray and dust the natural gas boiler flue gas entering the discharge filter box 1, and the water produced during spraying and dust removal falls into the water tank 7 through the through opening 9 formed in the discharge filter box 1 and the water tank 7, so as to recycle the water, and after the natural gas boiler flue gas after spraying and dust removal is moved to the right under the suction force of the fan 6 installed at the right end of the gas outlet 5, it sequentially passes through the primary filter screen 19, the secondary filter screen 20 and the tertiary filter screen 21 installed in the discharge filter box 1 in advance, and the primary filter screen 19, the secondary filter screen 20 and the tertiary filter screen 21 can further multiple filter and purify the natural gas boiler flue gas, and finally the harmless flue gas is accelerated and discharged into the air by the fan 6 installed at the gas outlet 5;

[0030] The first filter screen 19, the second filter screen 20 and the third filter screen 21 will be blocked after long time use, which will affect the filtering effect and emission efficiency of the smoke, so it is necessary to disassemble and clean the first filter screen 19, the second filter screen 20 and the third filter screen 21. When disassembling, the fastening knob 25 is unscrewed from the top surface of the mounting plate 22, the mounting plate 22 is pulled upward by the handle 24, the mounting plate 22 drives the filter screen to move out of the emission filter box 1 through the installation opening 10, so that the first filter screen 19, the second filter screen 20 and the third filter screen 21 can be disassembled and cleaned conveniently. When reinstalling, the first filter screen 19, the second filter screen 20 and the third filter screen 21 are inserted into the installation opening 10 from left to right through the handle 24, so that the filtering effect of the first filter screen 19, the second filter screen 20 and the third filter screen 21 can be ensured, the threaded short rod 13 on the top surface of the connecting lug 12 is inserted into the mounting hole 23 on the top surface of the mounting plate 22, the fastening knob 25 is screwed on the threaded short rod 13 through the screw hole 26, so that the mounting plate 22 can be pressed and fixed, and the first filter screen 19, the second filter screen 20 and the third filter screen 21 can be installed conveniently.

[0031] In conclusion, the above is only the preferred embodiment of the present application, and is not used to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiment, various improvements can be made and equivalent substitutions can be made to the components, or equivalent substitutions can be made to part of the technical features, without departing from the scope of the present application. Any improvement and substitution should be included in the protection scope of the present application.

Claims

1. A natural gas boiler flue gas emission device comprising an emission filter box (1), characterized in that: The inside of the discharge filter box (1) is provided with a first filtering mechanism (2), and the first filtering mechanism (2) comprises a water tank (7), a pump body (14), a branch pipe (15), a spray pipe (17) and an atomizing nozzle (18), the water tank (7) is fixedly connected to the bottom surface of the discharge filter box (1), and the input end of the pump body (14) is fixedly connected with the water outlet (8) on the left side of the water tank (7), the branch pipe (15) is fixedly connected to the front end wall of the discharge filter box (1), and the output end of the pump body (14) is connected with the input end of the branch pipe (15) through a connecting pipe (16), and a plurality of output ends of the branch pipe (15) are also fixedly connected with the spray pipes (17) respectively, and the bottom surface of the spray pipe (17) is fixedly connected with a plurality of atomizing nozzles (18), and the inside of the discharge filter box (1) and located behind the first filtering mechanism (2) is also provided with a second filtering mechanism (3), and the second filtering mechanism (3) comprises a first filter screen (19), a second filter screen (20) and a third filter screen (21), the first filter screen (19), the second filter screen (20) and the third filter screen (21) are fixedly connected in the inside of the discharge filter box (1) from left to right through a group of symmetrical fastening knobs (25).

2. A natural gas boiler flue gas discharge apparatus according to claim 1, characterized in that: The left side of the discharge filter box (1) is fixedly installed with an air inlet (4), and the right side of the discharge filter box (1) is fixedly installed with an air outlet (5), and the right end of the air outlet (5) is fixedly installed with a fan (6).

3. A natural gas boiler flue gas discharge apparatus according to claim 2, characterized in that: The water tank (7) is fixedly installed on the bottom surface of the discharge filter box (1), and the left side wall bottom of the water tank (7) is fixedly installed with a water outlet (8), and the bottom surface of the discharge filter box (1) and the top left side of the water tank (7) are respectively provided with through openings (9) in communication with each other.

4. A natural gas boiler flue gas discharge apparatus according to claim 3, characterized in that: The branch pipe (15) is fixedly installed on the left top of the front end wall of the discharge filter box (1), and a plurality of output ends of the branch pipe (15) are respectively fixedly installed with spray pipes (17), the spray pipes (17) are located in the discharge filter box (1), and a plurality of atomizing nozzles (18) are fixedly installed on the top surface of the spray pipe (17), the input end of the pump body (14) is fixedly installed with the water outlet (8), and the output end of the pump body (14) is fixedly installed with the connecting pipe (16) between the input end of the branch pipe (15).

5. A natural gas boiler flue gas discharge apparatus according to claim 4, characterized in that: Three installation openings (10) are arranged in a horizontal array on the right side of the top surface of the discharge filter box (1), and a sealing frame (11) is fixedly installed on the top surface of the discharge filter box (1) and located outside the installation openings (10), three groups of symmetrical connecting ears (12) corresponding to the installation openings (10) are fixedly installed on the front and rear sides of the outer wall of the discharge filter box (1), and screw short rods (13) are fixedly installed on the top surface of the connecting ears (12).

6. A natural gas boiler flue gas discharge apparatus according to claim 5, characterized in that: The primary filter screen (19), the secondary filter screen (20) and the tertiary filter screen (21) are inserted and installed in the corresponding installation openings (10), and the top surfaces of the primary filter screen (19), the secondary filter screen (20) and the tertiary filter screen (21) are fixedly installed with installation plates (22), a group of symmetrical installation holes (23) are formed in the top surfaces of the installation plates (22), threaded short rods (13) are inserted and installed in the installation holes (23), screw holes (26) are formed in the top surfaces of the fastening knobs (25), and the fastening knobs (25) are screwed together with the threaded short rods (13) through the screw holes (26), and the top surfaces of the installation plates (22) are also fixedly installed with handles (24).

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