CN222305146U - A low-temperature flue gas heating device after wet flue gas desulfurization - Google Patents
A low-temperature flue gas heating device after wet flue gas desulfurization Download PDFInfo
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- CN222305146U CN222305146U CN202420845306.6U CN202420845306U CN222305146U CN 222305146 U CN222305146 U CN 222305146U CN 202420845306 U CN202420845306 U CN 202420845306U CN 222305146 U CN222305146 U CN 222305146U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
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Abstract
The utility model discloses a low-temperature flue gas heating device after wet flue gas desulfurization, and relates to the technical field of low-temperature flue gas heating. The utility model comprises a heating cylinder, a sealing cover and a desulfurizing tower, wherein the heating cylinder is provided with a mounting mechanism, a heat exchange mechanism, a drainage mechanism, a conveying mechanism, a heating mechanism and a pressure relief mechanism, the mounting mechanism comprises a smoke outlet pipe fixedly connected to the top surface of the sealing cover, one end of the smoke outlet pipe, which is far away from the sealing cover, is fixedly connected with the top of the desulfurizing tower, a bolt is connected between the sealing cover and the heating cylinder in a threaded manner, the inner wall of the heating cylinder is provided with a first clamping groove, the inner wall of the sealing cover is provided with a sealing gasket, the inner wall of the sealing cover is provided with a second clamping groove, and the inner wall of the second clamping groove is provided with an activated carbon filter sheet. According to the utility model, by arranging the mounting mechanism and periodically replacing the activated carbon filter sheet and adopting a good connection sealing design, the long-term maintenance of a good filtering effect is ensured, and the integral heat exchange effect of the device is ensured.
Description
Technical Field
The utility model belongs to the technical field of low-temperature flue gas heating, and particularly relates to a low-temperature flue gas heating device after wet flue gas desulfurization.
Background
Wet flue gas desulfurization refers to a desulfurization method in which lime milk or limestone slurry is sprayed into flue gas by using an injector and chemically reacts with sulfur dioxide to generate gypsum precipitate. After wet flue gas desulfurization, the flue gas needs to be heated to recover moisture and raise the flue gas temperature for further treatment or discharge.
However, in the prior art, most heating devices do not filter the flue gas before heating, and many small granular impurities remain in the flue gas, and these small granular impurities adhere to the surface of the heat exchange device during the heat exchange process between the flue gas and the heat exchange device, so as to form a thin dirt layer, and the dirt layer becomes thicker and thicker along with the accumulation of time, thereby affecting the heat exchange efficiency.
Disclosure of utility model
The utility model aims to provide a low-temperature flue gas heating device after wet flue gas desulfurization, which can ensure that a filtering system can keep a good filtering effect for a long time by arranging an installation mechanism, periodically replacing an active carbon filter sheet and a good connection sealing design, ensure a long-term effective heat exchange effect and solve the problems that most heating devices do not filter flue gas before heating, and a lot of small granular impurities remain in the flue gas to influence the heat exchange efficiency.
In order to solve the technical problems, the utility model is realized by the following technical scheme:
The utility model relates to a low-temperature flue gas heating device after wet flue gas desulfurization, which comprises a heating cylinder, a sealing cover and a desulfurizing tower, wherein the heating cylinder is provided with a mounting mechanism, a heat exchange mechanism, a drainage mechanism, a conveying mechanism, a heating mechanism and a pressure release mechanism;
The installation mechanism comprises a smoke outlet pipe fixedly connected to the top surface of the sealing cover, one end, far away from the sealing cover, of the smoke outlet pipe is fixedly connected with the top of the desulfurizing tower, a bolt is connected between the sealing cover and the heating cylinder in a threaded mode, a first clamping groove is formed in the inner wall of the heating cylinder, a sealing gasket is placed on the inner wall of the sealing cover, a second clamping groove is formed in the inner wall of the sealing cover, an activated carbon filter disc is placed on the inner wall of the second clamping groove, and the bottom surface of the activated carbon filter disc is attached to the top surface of the sealing gasket.
Further, the heat exchange mechanism comprises two fixing sleeves fixedly connected to the inner wall of the heating cylinder, and a plurality of heat conduction pipes penetrate through the space between the two fixing sleeves.
Further, the drainage mechanism comprises a water storage tank fixedly connected to the top surface of the heating cylinder, the inner wall of the water storage tank is fixedly connected with a first liquid pump, the input end of the first liquid pump is fixedly connected with a water outlet pipe, and one end, far away from the first liquid pump, of the water outlet pipe is fixedly connected with the heating cylinder.
Further, conveying mechanism includes the second liquid pump of fixed connection on the heating cylinder inner wall, the output fixedly connected with water supply pipe of second liquid pump, the one end and the heating cylinder fixed connection of keeping away from the second liquid pump on the water supply pipe, the positive fixedly connected with drain pipe of water storage tank, fixedly connected with electronic valve on the drain pipe.
Further, the heating mechanism comprises a heating base fixedly connected to the bottom surface of the heating cylinder, a plurality of heating rods are fixedly arranged on the bottom surface of the heating base, and the top ends of the heating rods extend to the inside of the water storage tank.
Further, the pressure release mechanism includes the seal box of fixed connection on the water storage tank top surface, the top surface slidable mounting of seal box has the slide bar, the bottom of slide bar extends to the inside of seal box, the bottom fixedly connected with piston plate of slide bar, piston plate and the inner wall sliding connection of seal box, the cover is equipped with the spring on the slide bar, the bottom of spring and the top surface fixed connection of piston plate, the top of spring and the inner wall fixed connection of seal box.
Further, the bottom surface of the seal box is fixedly connected with a gas permeable membrane.
The utility model has the following beneficial effects:
1. Through being provided with installation mechanism, the active carbon filter piece can filter the flue gas, make the tiny impurity in the flue gas can be adsorbed by the active carbon filter piece and filter, simultaneously after active carbon filter piece uses for a long time, the filter effect of active carbon filter piece descends, the bolt is mutually supported with sealed lid, make sealed lid dismantle, thereby make active carbon filter piece can change, and sealing washer has been placed in the second draw-in groove, when the concatenation assembly, sealing performance when can strengthening the connection, guaranteed filtration system in long-term use, the flue gas can not influence the filter effect because of connecting the position leakage, through regularly changing active carbon filter piece and good connection seal design, can make filtration system keep good filter effect for a long time.
2. Through being provided with relief mechanism, after the vapor in the flue gas condenses the droplet and flows into the water storage box inside, the flue gas also can flow into the inside of water storage box thereupon, when the inside pressure of water storage box is great, and inside the gas inflow seal box makes the seal box inside be the high-pressure state to drive the piston board and upwards remove, when the piston board removes to the exhaust pipe department, the flue gas after handling can be discharged through the exhaust pipe, has played the effect of automatic pressure release.
Of course, it is not necessary for any one product to practice the utility model to achieve all of the advantages set forth above at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of a low-temperature flue gas heating device after wet flue gas desulfurization;
FIG. 2 is a schematic diagram showing a sectional front view of a heating cylinder of a low-temperature flue gas heating device after wet flue gas desulfurization according to the present utility model;
FIG. 3 is a schematic diagram showing a right-side cross-sectional structure of a heating cylinder of the low-temperature flue gas heating device after wet flue gas desulfurization according to the present utility model;
FIG. 4 is a schematic diagram showing a left-hand cross-sectional structure of a water tank of the low-temperature flue gas heating device after wet flue gas desulfurization according to the present utility model;
Fig. 5 is an enlarged schematic view of the structure of the low-temperature flue gas heating device of fig. 2 a after wet flue gas desulfurization according to the present utility model.
In the drawings, the list of components represented by the various numbers is as follows:
1. The heating cylinder, 2, the installation mechanism, 3, the heat exchange mechanism, 4, the drainage mechanism, 5, the conveying mechanism, 6, the heating mechanism, 7, the pressure release mechanism, 21, the sealing cover, 22, the smoke outlet pipe, 23, the desulfurizing tower, 24, the bolt, 25, the first clamping groove, 26, the sealing gasket, 27, the second clamping groove, 28, the active carbon filter disc, 31, the fixed sleeve, 32, the heat conducting pipe, 41, the water storage tank, 42, the water outlet pipe, 43, the first liquid pump, 51, the water supply pipe, 52, the second liquid pump, 53, the water outlet pipe, 54, the electronic valve, 61, the heating base, 62, the heating rod, 71, the sealing box, 72, the sliding rod, 73, the piston plate, 74, the spring, 75, the smoke outlet pipe and 76, the gas permeable membrane.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-5, the utility model discloses a low-temperature flue gas heating device after wet flue gas desulfurization, which comprises a heating cylinder 1, a sealing cover 21 and a desulfurizing tower 23, wherein the heating cylinder 1 is provided with a mounting mechanism 2, a heat exchange mechanism 3, a drainage mechanism 4, a conveying mechanism 5, a heating mechanism 6 and a pressure release mechanism 7;
The installation mechanism 2 comprises a smoke outlet pipe 22 fixedly connected to the top surface of the sealing cover 21, one end, far away from the sealing cover 21, of the smoke outlet pipe 22 is fixedly connected with the top of the desulfurizing tower 23, a bolt 24 is connected between the sealing cover 21 and the heating cylinder 1 in a threaded manner, a first clamping groove 25 is formed in the inner wall of the heating cylinder 1, a sealing gasket 26 is arranged on the inner wall of the sealing cover 21, a second clamping groove 27 is formed in the inner wall of the sealing cover 21, an activated carbon filter sheet 28 is arranged on the inner wall of the second clamping groove 27, and the bottom surface of the activated carbon filter sheet 28 is attached to the top surface of the sealing gasket 26.
As shown in fig. 2, the heat exchange mechanism 3 includes two fixing sleeves 31 fixedly connected to the inner wall of the heating cylinder 1, and a plurality of heat pipes 32 penetrate between the two fixing sleeves 31.
Through being provided with heat exchange mechanism 3, make hot water when passing through the inside of heating cylinder 1, can heat the inside flue gas of heat pipe 32, when the flue gas that contains low temperature vapor in the heating process, the temperature of vapor can rise gradually, and the vapor volume of water in the flue gas is too big or the temperature variation of medium is great, leads to the saturation of vapor to increase, will take place to condense after exceeding its saturation point, and the water droplet is stored to the inside of water storage tank 41 through heat pipe 32 whereabouts, and the recycle of being convenient for.
As shown in fig. 2, the drainage mechanism 4 includes a water storage tank 41 fixedly connected to the top surface of the heating cylinder 1, a first liquid pump 43 is fixedly connected to an inner wall of the water storage tank 41, a water outlet pipe 42 is fixedly connected to an input end of the first liquid pump 43, and one end, far away from the first liquid pump 43, of the water outlet pipe 42 is fixedly connected to the heating cylinder 1.
Through being provided with drainage mechanism 4, make the hot water of the interior bottom of heating cylinder 1 after the heat transfer, through the cooperation of outlet pipe 42 and first liquid pump 43, make it be taken out to the inside of water storage tank 41, be convenient for follow-up recycle.
As shown in fig. 3, the conveying mechanism 5 includes a second liquid pump 52 fixedly connected to the inner wall of the heating cylinder 1, an output end of the second liquid pump 52 is fixedly connected to a water supply pipe 51, one end of the water supply pipe 51 far away from the second liquid pump 52 is fixedly connected to the heating cylinder 1, a water drain pipe 53 is fixedly connected to the front surface of the water storage tank 41, and an electronic valve 54 is fixedly connected to the water drain pipe 53.
Through being provided with conveying mechanism 5, make the inside water of water storage tank 41 after the heating, through the mutually supporting of water supply pipe 51 and second liquid pump 52, make it can be taken out to the inside of heating cylinder 1, carry out the heat transfer to the inside flue gas of heat conduction pipe 32, and when the inside water yield of water storage tank 41 is great, can open electronic valve 54 to discharge unnecessary water.
As shown in fig. 3, the heating mechanism 6 includes a heating base 61 fixedly connected to the bottom surface of the heating cylinder 1, a plurality of heating rods 62 are fixedly mounted on the bottom surface of the heating base 61, and the top ends of the heating rods 62 extend into the water storage tank 41.
Through being provided with heating mechanism 6, make heating base 61 can heat the inside water of water storage tank 41, cooperation drainage mechanism 4 and conveying mechanism 5 simultaneously have played water cyclic utilization's effect, have improved the utilization ratio of heat energy greatly.
As shown in fig. 4, the pressure release mechanism 7 includes a sealing box 71 fixedly connected to the top surface of the water storage box 41, a sliding rod 72 is slidably mounted on the top surface of the sealing box 71, the bottom end of the sliding rod 72 extends to the inside of the sealing box 71, a piston plate 73 is fixedly connected to the bottom end of the sliding rod 72, the piston plate 73 is slidably connected to the inner wall of the sealing box 71, a spring 74 is sleeved on the sliding rod 72, the bottom end of the spring 74 is fixedly connected to the top surface of the piston plate 73, and the top end of the spring 74 is fixedly connected to the inner wall of the sealing box 71.
Through being provided with relief mechanism 7, after the vapor in the flue gas condenses into the water droplet and drops into the water storage box 41 inside, the flue gas also can flow into the inside of water storage box 41 thereupon, and when the inside pressure of water storage box 41 is great, gas flows into the inside of seal box 71, makes the inside high-pressure state that is of seal box 71 to drive piston plate 73 and upwards move, when piston plate 73 moved to exhaust pipe 75 department, the flue gas after the processing can be discharged through exhaust pipe 75, has played the effect of automatic pressure release.
Wherein, as shown in fig. 4, a gas permeable membrane 76 is fixedly connected to the bottom surface of the seal box 71.
By providing the gas permeable membrane 76, water inside the water storage tank 41 can be prevented from penetrating into the inside of the seal box 71, and the pressure release effect can be prevented from being affected.
The mounting mechanism 2 is arranged, the activated carbon filter 28 can filter flue gas, so that fine impurities in the flue gas can be adsorbed and filtered by the activated carbon filter 28, meanwhile, after the activated carbon filter 28 is used for a long time, the filtering effect of the activated carbon filter 28 is reduced, the bolts 24 are matched with the sealing cover 21, so that the sealing cover 21 can be detached, the activated carbon filter 28 can be replaced, the sealing gasket 26 is arranged in the second clamping groove 27, the sealing performance in connection can be enhanced during splicing assembly, the filtering effect of the flue gas cannot be influenced due to leakage of the connection part in the long-time use process of the filtering system is ensured, and the filtering system can keep a good filtering effect for a long time through regular replacement of the activated carbon filter and good connection sealing design;
By arranging the heat exchange mechanism 3, when hot water passes through the inside of the heating cylinder 1, flue gas in the heat conducting tube 32 can be heated, during the heating process, when the temperature of the flue gas containing low-temperature steam is raised, the temperature of the steam can be gradually raised, the steam in the flue gas is excessively high or the temperature change of a medium is relatively high, so that the saturation degree of the steam is increased, condensation can occur after the saturation point of the steam is exceeded, and water drops fall into the water storage tank 41 through the heat conducting tube 32 to be stored, thereby being convenient for recycling;
By arranging the drainage mechanism 4, the hot water at the inner bottom of the heating cylinder 1 is pumped into the water storage tank 41 through the mutual matching of the water outlet pipe 42 and the first liquid pump 43 after heat exchange, so that the subsequent recycling is facilitated;
By arranging the conveying mechanism 5, after the water in the water storage tank 41 is heated, the water can be pumped into the heating cylinder 1 through the mutual matching of the water supply pipe 51 and the second liquid pump 52, the flue gas in the heat conduction pipe 32 is subjected to heat exchange, and when the water in the water storage tank 41 is more, the electronic valve 54 can be opened, so that the redundant water is discharged;
The heating mechanism 6 is arranged, so that the heating base 61 can heat water in the water storage tank 41, and the water draining mechanism 4 and the conveying mechanism 5 are matched to achieve the effect of water recycling, so that the heat energy utilization rate is greatly improved;
By arranging the pressure release mechanism 7, after water vapor in the flue gas is condensed into water drops to flow into the water storage tank 41, the flue gas also flows into the water storage tank 41, when the pressure in the water storage tank 41 is high, the gas flows into the seal box 71, so that the interior of the seal box 71 is in a high-pressure state, the piston plate 73 is driven to move upwards, and when the piston plate 73 moves to the smoke exhaust pipe 75, the treated flue gas can be discharged through the smoke exhaust pipe 75, so that the effect of automatic pressure release is achieved;
By providing the gas permeable membrane 76, water inside the water storage tank 41 can be prevented from penetrating into the inside of the seal box 71, and the pressure release effect can be prevented from being affected.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the utility model disclosed above are intended only to assist in the explanation of the utility model. The preferred embodiments are not exhaustive or to limit the utility model to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best understand and utilize the utility model. The utility model is limited only by the claims and the full scope and equivalents thereof.
Claims (7)
1. The low-temperature flue gas heating device after wet flue gas desulfurization comprises a heating cylinder (1), a sealing cover (21) and a desulfurizing tower (23), and is characterized in that an installation mechanism (2), a heat exchange mechanism (3), a drainage mechanism (4), a conveying mechanism (5), a heating mechanism (6) and a pressure release mechanism (7) are arranged on the heating cylinder (1);
The installation mechanism (2) comprises a smoke outlet pipe (22) fixedly connected to the top surface of the sealing cover (21), one end, far away from the sealing cover (21), of the smoke outlet pipe (22) is fixedly connected with the top of the desulfurizing tower (23), a bolt (24) is connected between the sealing cover (21) and the heating cylinder (1) in a threaded mode, a first clamping groove (25) is formed in the inner wall of the heating cylinder (1), a sealing gasket (26) is arranged in the inner wall of the sealing cover (21), a second clamping groove (27) is formed in the inner wall of the sealing cover (21), an activated carbon filter (28) is arranged in the inner wall of the second clamping groove (27), and the bottom surface of the activated carbon filter (28) is attached to the top surface of the sealing gasket (26).
2. The low-temperature flue gas heating device after wet flue gas desulfurization according to claim 1, wherein the heat exchange mechanism (3) comprises two fixing sleeves (31) fixedly connected to the inner wall of the heating cylinder (1), and a plurality of heat conducting pipes (32) penetrate between the two fixing sleeves (31).
3. The low-temperature flue gas heating device after wet flue gas desulfurization according to claim 1, wherein the drainage mechanism (4) comprises a water storage tank (41) fixedly connected to the top surface of the heating cylinder (1), a first liquid pump (43) is fixedly connected to the inner wall of the water storage tank (41), a water outlet pipe (42) is fixedly connected to the input end of the first liquid pump (43), and one end, far away from the first liquid pump (43), of the water outlet pipe (42) is fixedly connected with the heating cylinder (1).
4. A low-temperature flue gas heating device after wet flue gas desulfurization according to claim 3, wherein the conveying mechanism (5) comprises a second liquid pump (52) fixedly connected to the inner wall of the heating cylinder (1), the output end of the second liquid pump (52) is fixedly connected with a water conveying pipe (51), one end, far away from the second liquid pump (52), of the water conveying pipe (51) is fixedly connected with the heating cylinder (1), the front surface of the water storage tank (41) is fixedly connected with a water draining pipe (53), and an electronic valve (54) is fixedly connected to the water draining pipe (53).
5. A wet flue gas desulfurization low-temperature flue gas heating device according to claim 3, wherein the heating mechanism (6) comprises a heating base (61) fixedly connected to the bottom surface of the heating cylinder (1), a plurality of heating rods (62) are fixedly arranged on the bottom surface of the heating base (61), and the top ends of the heating rods (62) extend into the water storage tank (41).
6. A low temperature flue gas heating device after wet flue gas desulfurization according to claim 3, wherein the pressure release mechanism (7) comprises a sealing box (71) fixedly connected to the top surface of the water storage box (41), a sliding rod (72) is slidably mounted on the top surface of the sealing box (71), the bottom end of the sliding rod (72) extends to the inside of the sealing box (71), a piston plate (73) is fixedly connected to the bottom end of the sliding rod (72), the piston plate (73) is slidably connected with the inner wall of the sealing box (71), a spring (74) is sleeved on the sliding rod (72), the bottom end of the spring (74) is fixedly connected with the top surface of the piston plate (73), and the top end of the spring (74) is fixedly connected with the inner wall of the sealing box (71).
7. The low-temperature flue gas heating device after wet flue gas desulfurization according to claim 6, wherein a gas permeable membrane (76) is fixedly connected to the bottom surface of the seal box (71).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420845306.6U CN222305146U (en) | 2024-04-23 | 2024-04-23 | A low-temperature flue gas heating device after wet flue gas desulfurization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420845306.6U CN222305146U (en) | 2024-04-23 | 2024-04-23 | A low-temperature flue gas heating device after wet flue gas desulfurization |
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| Publication Number | Publication Date |
|---|---|
| CN222305146U true CN222305146U (en) | 2025-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420845306.6U Active CN222305146U (en) | 2024-04-23 | 2024-04-23 | A low-temperature flue gas heating device after wet flue gas desulfurization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222305146U (en) |
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- 2024-04-23 CN CN202420845306.6U patent/CN222305146U/en active Active
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Effective date of registration: 20260716 Address after: 510000 Guangdong Province Guangzhou City Haizhu District Shuiyue Street 28# 302 Room Patentee after: Lynch Country or region after: China Address before: Room 1401, Unit 2, 14th Floor, Building 1, No. 20 Yong'an Road, Shilong Economic Development Zone, Mentougou District, Beijing 100000-DFF615 Patentee before: Xingsheng (Beijing) Construction Engineering Co.,Ltd. Country or region before: China |