CN218924301U - Boiler flue gas purification device - Google Patents
Boiler flue gas purification device Download PDFInfo
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- CN218924301U CN218924301U CN202223142493.1U CN202223142493U CN218924301U CN 218924301 U CN218924301 U CN 218924301U CN 202223142493 U CN202223142493 U CN 202223142493U CN 218924301 U CN218924301 U CN 218924301U
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Abstract
The utility model discloses a boiler flue gas purification device which comprises an air inlet pipe, a lower purification tower, a flue gas duct and a flue gas exhaust pipe, wherein the lower purification tower is connected with the flue gas exhaust pipe through the flue gas duct, and the air inlet pipe is connected with the lower purification tower and guides flue gas into the lower purification tower; the high-pressure liquid supply device is connected to the lower purification tower and the upper purification tower and is used for conveying purified liquid; the boiler flue gas purifying device is simple in structure, convenient and practical, and the spiral blades enable the flue gas to form a spiral flow shape when being led out between the gas guiding device and the tank body, so that the flue gas is prevented from rising vertically, the contact area between the flue gas and atomization is reduced, and the purposes of rapidly dispersing the flue gas after being led out and prolonging the spraying time of the flue gas are achieved.
Description
Technical Field
The utility model belongs to the technical field of flue gas purification, and particularly relates to a boiler flue gas purification device.
Background
At present, coal, straw or household garbage is mainly used as fuel in a thermal power plant, a large amount of smoke containing smoke dust is generated in the combustion process, and if the smoke containing smoke dust is directly discharged into the atmosphere, serious pollution is caused to the atmosphere. Nowadays, as environmental protection issues are more and more emphasized, the smoke emission standard is more and more strict. Thermal power plants are generally provided with various flue gas treatment devices, wherein a desulfurizing tower is a common device for flue gas treatment. At present, the main function of the desulfurizing tower is to carry out desulfurization treatment on flue gas, but the flue gas amount generated by a thermal power plant is large, a single desulfurizing tower is difficult to meet desulfurization requirements, and the occupied area of equipment is required to be increased by arranging a plurality of desulfurizing towers.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a boiler flue gas purifying device which is simple in structure, convenient and practical, and the spiral blades enable the flue gas to form a spiral flow shape when being led out between an air guide device and a tank body, so that the flue gas is prevented from rising vertically, the contact area between the flue gas and atomization is reduced, and the purposes of rapidly dispersing the flue gas after being led out and prolonging the spraying time of the flue gas are achieved.
The boiler flue gas purification device comprises an air inlet pipe, a lower purification tower, a flue gas duct and a flue gas exhaust pipe, wherein the lower purification tower is connected with the flue gas exhaust pipe through the flue gas duct, and the air inlet pipe is connected with the lower purification tower and guides flue gas into the lower purification tower; the high-pressure liquid supply device is connected to the lower purification tower and the upper purification tower and is used for conveying purified liquid; the lower purifying tower and the upper purifying tower comprise a tank body, a liquid supply pipe, a liquid inlet pipe and a gate valve, an atomizing coil, a flushing coil, a demister and an air guide device are arranged in the tank body, the demister is arranged between the atomizing coil and the flushing coil, the air guide device is arranged below the atomizing coil, one end of the liquid supply pipe is connected with the high-pressure liquid supply device, one end of the liquid inlet pipe is connected to the liquid supply pipe, the other end of the liquid inlet pipe penetrates through the side wall of the tank body and is respectively connected with the atomizing coil, the flushing coil and the air guide device, and the gate valve is arranged on the liquid inlet pipe; the flushing coil pipe is provided with a plurality of spray heads.
Preferably, the air guide device comprises a horn-shaped cylinder, a spiral blade, a liquid discharge pipe and an atomization ring, one end of the liquid discharge pipe is connected to the horn-shaped cylinder and used for discharging liquid, one side of the spiral blade is connected to the outer wall of the horn-shaped cylinder, the other side of the spiral blade is connected to the inner wall of the tank body, and the atomization ring is fixed on the outer wall of the horn-shaped cylinder and connected with the liquid inlet pipe; a plurality of spray heads are arranged on the atomizing ring.
Preferably, the high-pressure liquid supply device comprises a high-pressure liquid supply pipe, a fixing frame, a water storage tank, a high-pressure pump, a liquid guide pipe, a lifting pump, a high-pressure tank and a liquid supply pump, wherein the fixing frame is arranged on the tank body, the water storage tank, the lifting pump and the high-pressure tank are arranged on the fixing frame, the high-pressure liquid supply pipe is connected with the water storage tank, one end of the high-pressure liquid supply pipe is connected with the liquid supply pump, the lifting pump is connected on the high-pressure liquid supply pipe, the water storage tank is communicated with the high-pressure tank through the liquid guide pipe, and the high-pressure pump is connected on the liquid guide pipe.
Preferably, a stirring device is arranged in the water storage tank.
Preferably, a stair is included, and the stair is arranged on the lower purifying tower, the flue gas duct and the upper purifying tower.
The beneficial effects are that:
(1) The boiler flue gas purifying device is simple in structure, convenient and practical, and the spiral blades enable the flue gas to form a spiral flow shape when being led out between the gas guiding device and the tank body, so that the flue gas is prevented from rising vertically, the contact area between the flue gas and atomization is reduced, and the purposes of rapidly dispersing the flue gas after being led out and prolonging the spraying time of the flue gas are achieved.
(2) According to the boiler flue gas purification device, the purification towers are stacked, so that the flue gas purification effect is improved under the condition of not increasing the occupied area, and meanwhile, the pressure of the purification liquid of the atomizing coil and the flushing coil is improved through the high-pressure liquid supply device, so that the phenomenon that the atomization effect is reduced due to insufficient pressure of the purification liquid is avoided.
Drawings
FIG. 1 is a schematic diagram of a flue gas cleaning device;
FIG. 2 is a schematic diagram of the structure of a purification tower;
FIG. 3 is a schematic view of an air guide device;
1-air inlet pipe, 2-lower purifying tower, 21-tank body, 22-atomizing coil pipe, 23-flushing coil pipe, 24-demister, 25-air guide device, 26-liquid supply pipe, 27-liquid inlet pipe, 28-horn type cylinder, 29-helical blade, 210-liquid discharge pipe, 211-atomizing ring, 3-flue gas pipe, 4-upper purifying tower, 5-smoke exhaust pipe, 6-high pressure liquid supply device, 61-high pressure liquid supply pipe, 62-fixing frame, 63-water storage tank, 64-high pressure pump, 65-liquid guide pipe, 66-lifting pump, 67-high pressure tank and 68-stirring device.
Detailed Description
Embodiments of the present utility model are further described below with reference to the accompanying drawings.
Example 1
As shown in fig. 1; the boiler flue gas purification device comprises an air inlet pipe 1, a lower purification tower 2, a flue gas duct 3 and a flue gas exhaust pipe 5, wherein the lower purification tower 2 is connected with the flue gas exhaust pipe 5 through the flue gas duct 3, and the air inlet pipe 1 is connected with the lower purification tower 2 and guides flue gas into the lower purification tower 2; the high-pressure liquid supply device 6 is connected to the lower purification tower 2 and the upper purification tower 4 and is used for conveying purified liquid; the lower purifying tower 2 and the upper purifying tower 4 both comprise a tank body 21, a liquid supply pipe 26, a liquid inlet pipe 27 and a gate valve, wherein an atomizing coil 22, a flushing coil 23, a demister 24 and an air guide device 25 are arranged in the tank body 21, the demister 24 is arranged between the atomizing coil 22 and the flushing coil 23, the air guide device 25 is arranged below the atomizing coil 22, one end of the liquid supply pipe 26 is connected with the high-pressure liquid supply device 6, one end of the liquid inlet pipe 27 is connected with the liquid supply pipe 26, the other end of the liquid inlet pipe 27 penetrates through the side wall of the tank body 21 and is respectively connected with the atomizing coil 22, the flushing coil 23 and the air guide device 25, and the gate valve is arranged on the liquid inlet pipe 27; a plurality of spray heads are arranged on the flushing coil 23; the air guide device 25 comprises a horn-shaped cylinder 28, a spiral blade 29, a liquid discharge pipe 210 and an atomization ring 211, one end of the liquid discharge pipe 210 is connected to the horn-shaped cylinder 28 and used for discharging liquid, one side of the spiral blade 29 is connected to the outer wall of the horn-shaped cylinder 28, the other side of the spiral blade 29 is connected to the inner wall of the tank body 21, and the atomization ring 211 is fixed on the outer wall of the horn-shaped cylinder 28 and connected with the liquid inlet pipe 27; a plurality of spray heads are arranged on the atomizing ring 211; the high-pressure liquid supply device 6 comprises a high-pressure liquid supply pipe 61, a fixing frame 62, a water storage tank 63, a high-pressure pump 64, a liquid guide pipe 65, a lifting pump 66, a high-pressure tank 67 and a liquid supply pump, wherein the fixing frame 62 is arranged on the tank body 21, the water storage tank 63, the lifting pump 66 and the high-pressure tank 67 are arranged on the fixing frame 62, the high-pressure liquid supply pipe 61 is connected with the water storage tank 63, one end of the high-pressure liquid supply pipe is connected with the liquid supply pump, the lifting pump 66 is connected with the high-pressure liquid supply pipe 61, the water storage tank 63 is communicated with the high-pressure tank 67 through the liquid guide pipe 65, and the high-pressure pump 64 is connected with the liquid guide pipe 65; a stirring device 68 is arranged in the water storage tank 63; comprises stairs which are arranged on a lower purifying tower 2, a flue gas duct 3 and an upper purifying tower 4.
The atomizing coil 22 is used for atomizing and spraying the purified liquid, the demister 24 is used for removing water vapor, and the atomizing coil 22 and the demister 24 are in the prior art and are not described in detail herein; specifically, an air inlet pipe 1 is connected with a bag-type dust collector, the flue gas filtered by the bag-type dust collector is led into a lower purifying tower 2 through the air inlet pipe 1, and is purified and discharged after passing through a flue gas guide pipe 3, an upper purifying tower 4 and a smoke exhaust pipe 5 in sequence, and the flue gas is purified twice through the lower purifying tower 2 and the upper purifying tower 4; the purifying liquid is respectively led into an atomizing coil 22, a flushing coil 23 and an atomizing ring 211 in the lower purifying tower 2 and the upper purifying tower 4 through a high-pressure liquid supply device 6, wherein the purifying liquid is lime water, and the lime water is atomized and sprayed out through the atomizing coil 22, so that the atomized lime water contacts with flue gas to adsorb sulfur element in the flue gas; the atomized lime water and the flue gas are mixed and lifted, the flue gas after absorbing sulfur element is continuously lifted and discharged after lime water vapor is removed by the demister 24, and lime attached to the demister 24 is washed away by a washing coil 23; after passing between the horn-shaped cylinder 28 and the inner wall of the tank body 21, the vertical smoke is led to form an inclined upward through the spiral blade 29, and the smoke is dispersed and contacted with atomized lime water so as to achieve the purpose of quickly absorbing sulfur in the smoke, and the smoke can rise in a spiral manner at the moment; lime water is pumped into the high-pressure liquid supply pipe 61 through the liquid supply pump, and simultaneously, the lime water is guided into the water storage tank 63 at the upper purifying tower 4 through the positive pressure of the lifting pump 66, the lime water in the water storage tank 63 is pressurized and guided into the high-pressure tank 67 through the liquid guide pipe 65 through the high-pressure pump 64, the high-pressure lime water in the high-pressure tank 67 is guided into the liquid inlet pipe 27 through the liquid supply pipe 26, and the corresponding gate valves are respectively opened to respectively enter the atomizing coil 22, the flushing coil 23 and the atomizing ring 211.
The above description of the specific embodiments of the present utility model has been given by way of example only, and the present utility model is not limited to the above description of the specific embodiments. Any equivalent modifications and substitutions for the present utility model will occur to those skilled in the art, and are also within the scope of the present utility model. Accordingly, equivalent changes and modifications are intended to be included within the scope of the present utility model without departing from the spirit and scope thereof.
Claims (5)
1. The boiler flue gas purification device comprises an air inlet pipe (1), a lower purification tower (2), a flue gas duct (3) and a flue gas exhaust pipe (5), wherein the lower purification tower (2) is connected with the flue gas exhaust pipe (5) through the flue gas duct (3), and the air inlet pipe (1) is connected with the lower purification tower (2) and guides flue gas into the lower purification tower (2); the method is characterized in that: the device comprises an upper purifying tower (4) and a high-pressure liquid supply device (6), wherein the upper purifying tower (4) is connected between a flue gas duct (3) and a flue gas exhaust pipe (5), and the high-pressure liquid supply device (6) is connected to the lower purifying tower (2) and the upper purifying tower (4) and is used for conveying purified liquid; the lower purifying tower (2) and the upper purifying tower (4) comprise a tank body (21), a liquid supply pipe (26), a liquid inlet pipe (27) and a gate valve, wherein an atomizing coil (22), a flushing coil (23), a demister (24) and an air guide device (25) are arranged in the tank body (21), the demister (24) is arranged between the atomizing coil (22) and the flushing coil (23), the air guide device (25) is arranged below the atomizing coil (22), one end of the liquid supply pipe (26) is connected with a high-pressure liquid supply device (6), one end of the liquid supply pipe (27) is connected with the liquid supply pipe (26), the other end of the liquid supply pipe (27) penetrates through the side wall of the tank body (21) and is respectively connected with the atomizing coil (22), the flushing coil (23) and the air guide device (25), and the gate valve is arranged on the liquid inlet pipe (27). A plurality of spray heads are arranged on the flushing coil pipe (23).
2. A boiler flue gas cleaning device according to claim 1, wherein: the air guide device (25) comprises a horn-shaped cylinder (28), a spiral blade (29), a liquid discharge pipe (210) and an atomization ring (211), one end of the liquid discharge pipe (210) is connected to the horn-shaped cylinder (28) and used for discharging liquid, one side of the spiral blade (29) is connected to the outer wall of the horn-shaped cylinder (28) and the other side of the spiral blade is connected to the inner wall of the tank body (21), and the atomization ring (211) is fixed on the outer wall of the horn-shaped cylinder (28) and connected with the liquid inlet pipe (27); a plurality of spray heads are arranged on the atomizing ring (211).
3. A boiler flue gas cleaning device according to claim 1 or 2, wherein: the high-pressure liquid supply device (6) comprises a high-pressure liquid supply pipe (61), a fixing frame (62), a water storage tank (63), a high-pressure pump (64), a liquid guide pipe (65), a lifting pump (66), a high-pressure tank (67) and a liquid supply pump, wherein the fixing frame (62) is arranged on a tank body (21), the water storage tank (63), the lifting pump (66) and the high-pressure tank (67) are arranged on the fixing frame (62), the high-pressure liquid supply pipe (61) is connected with the water storage tank (63) and one end of the high-pressure liquid supply pipe is connected with the liquid supply pump, the lifting pump (66) is connected on the high-pressure liquid supply pipe (61), the water storage tank (63) is communicated with the high-pressure tank (67) through the liquid guide pipe (65), and the high-pressure pump (64) is connected on the liquid guide pipe (65).
4. A boiler flue gas cleaning device according to claim 3, wherein: a stirring device (68) is arranged in the water storage tank (63).
5. A boiler flue gas cleaning device according to claim 4, wherein: comprises a stair which is arranged on a lower purifying tower (2), a flue gas duct (3) and an upper purifying tower (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223142493.1U CN218924301U (en) | 2022-11-25 | 2022-11-25 | Boiler flue gas purification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223142493.1U CN218924301U (en) | 2022-11-25 | 2022-11-25 | Boiler flue gas purification device |
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| Publication Number | Publication Date |
|---|---|
| CN218924301U true CN218924301U (en) | 2023-04-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223142493.1U Active CN218924301U (en) | 2022-11-25 | 2022-11-25 | Boiler flue gas purification device |
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| Country | Link |
|---|---|
| CN (1) | CN218924301U (en) |
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2022
- 2022-11-25 CN CN202223142493.1U patent/CN218924301U/en active Active
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