CN210718025U - Boiler waste gas waste heat recovery device - Google Patents
Boiler waste gas waste heat recovery device Download PDFInfo
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- CN210718025U CN210718025U CN201921337340.8U CN201921337340U CN210718025U CN 210718025 U CN210718025 U CN 210718025U CN 201921337340 U CN201921337340 U CN 201921337340U CN 210718025 U CN210718025 U CN 210718025U
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- waste gas
- chimney
- air current
- heat recovery
- recovery device
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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 boiler waste gas waste heat recovery device, use in waste gas waste heat field of recycling, the insufficient technical problem of heat recovery that waste gas carried has been solved, its technical scheme main points are including the air current chimney, the inside a plurality of bafflers that are equipped with of air current chimney, the baffler sets up from top to bottom and fixes at the air current chimney inboard, the baffler constitutes an "S" shape waste gas passageway in the air current chimney inboard, the distance that makes waste gas flow increases, a ring pipe is fixed to the lower surface of each baffler, fill up water in the ring pipe, the water inlet and the delivery port of ring pipe set up in the air current chimney outside, waste gas flows in the waste gas pipeline, transmit heat energy to the water in the ring pipe, the baffler upper surface that is located the superiors is equipped with rotatable baffler, the baffler can change the speed that waste gas; the technical effect is that the distance of the waste gas flow is increased, the flow speed is slowed down, and the water in the annular pipe fully absorbs the heat energy in the waste gas.
Description
Technical Field
The utility model belongs to the technical field of the technique of waste gas waste heat recycling and specifically relates to a boiler waste gas waste heat recovery device is related to.
Background
The existing boiler is widely applied and is a main device for generating heat energy in a factory, a large amount of waste gas can be discharged in the using process of the boiler, the temperature of the waste gas is high, and a large amount of unused heat energy is carried, so that resource waste is caused. The existing waste heat recovery device for the boiler waste gas can recover and recycle the heat of the waste gas generated by the boiler.
The utility model discloses a chinese utility model patent that has bulletin number CN204187598U discloses a boiler waste heat recoverer, this equipment includes rain-proof cover, rain-proof cover below is equipped with the exhanst gas outlet, supply the exhanst gas to arrange the use, the exhanst gas outlet is equipped with the insulating layer all around, exhanst gas outlet internally mounted has a plurality of S type heating pipes, cold water inlet is connected on S type heating pipe upper portion, be used for inputing cold water, sub-unit connection hot water outlet, be used for discharging the water of accomplishing the heating, end-to-end connection quick-operation joint, be used for connecting equipment such as inlet tube, the flue gas is got into by the exhanst gas outlet bottom, flow through and be located the inside a plurality of S type heating pipes of exha.
The above prior art solutions have the following drawbacks: in the process of discharging the flue gas from the flue gas outlet, the flue gas is not blocked, so that the time of the flue gas flowing through the flue gas outlet is short, the time of the heating pipe absorbing heat is short, the heating pipe cannot fully absorb the heat in the flue gas, the heat transfer is incomplete, and the energy waste is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a boiler waste gas waste heat recovery device, its advantage is that the heat energy that boiler exhaust's waste gas carried can abundant recycle, the energy saving.
The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a boiler waste gas waste heat recovery device, includes the air current chimney and is located the sheltering device of air current chimney top, is equipped with the support column between sheltering device and the air current chimney, and boiler exhaust emission port is connected to air current chimney lower part port, and the inside annular tube that is equipped with of air current chimney, its characterized in that, the inside a plurality of bafflers that are equipped with of air current chimney, baffler and air current chimney inner wall constitute "S" shape exhaust passage, and the baffler upper surface that is close to the sheltering device is equipped with the piece that blocks of control exhaust emission speed, the annular tube coils in the exhaust passage.
Through above-mentioned technical scheme, including the air current chimney, the gas vent of boiler is connected to the lower extreme port of air current chimney, is responsible for letting waste gas get into the air current chimney. The shielding device is arranged above the port at the upper end of the airflow chimney and is fixedly connected with the upper surface of the airflow chimney through the supporting column, and the shielding device plays a role in preventing rain and sundries from falling into the airflow chimney.
The inner part of the airflow chimney is provided with a plurality of baffle plates fixed on the inner wall of the airflow chimney, gaps are reserved between the baffle plates and the inner wall of the airflow chimney, the positions of the gaps of the adjacent baffle plates are symmetrical about the central plane of the airflow chimney, the plurality of baffle plates form a waste gas channel, and the waste gas channel is S-shaped, so that the path of waste gas flowing in the airflow chimney is lengthened. The annular pipe is arranged in the waste gas channel and is coiled in the waste gas channel, water can flow into the annular pipe, and when waste gas passes through the waste gas channel, heat energy can be transferred to the annular pipe and the water in the annular pipe, so that the heat energy is recycled and reused.
The upper surface of the blocking plate close to the blocking device is provided with a rotatable blocking piece, and the blocking piece can block a gap formed by the blocking plate and the inner wall of the airflow chimney and control the speed of the waste gas discharged out of the airflow chimney.
The utility model discloses further set up to: the annular pipe is a plurality of, and an annular pipe is all fixed below every baffler.
Through the technical scheme, the annular pipes are fixed on the lower surface of each barrier plate, the number of the annular pipes is increased, and the heat energy absorbed by the water in the annular pipes and the water in the annular pipes from the waste gas is increased, so that the recycled energy is increased, and the device can more fully recycle the heat energy in the waste gas.
The utility model discloses further set up to: the inner diameter of the annular pipe close to the lower port of the airflow chimney is larger, and the inner diameter of the annular pipe close to the upper port of the airflow chimney is the smallest.
Through the technical scheme, the waste gas flows from the lower end to the upper end of the airflow chimney, the heat energy contained in the waste gas at the lowest end is the most, the larger the inner diameter of the annular pipe closer to the lower end of the airflow chimney is, the more the water contained in the annular pipe is, and the absorbable heat energy is increased; similarly, the more the waste gas flows upwards, the less the heat energy is carried, and when the waste gas quickly flows out of the airflow chimney, the heat energy is almost absorbed, so that the inner diameter of the annular pipe at the uppermost end is small, the contained water is less, and the water can easily reach the expected temperature. The design makes the temperature difference of water temperature in each annular pipe not big, also makes the heat energy in the waste gas rationally absorbed, does not cause the waste.
The utility model discloses further set up to: the annular pipe comprises a water inlet and a water outlet, a plurality of through grooves are formed in the side wall of the airflow chimney, the water inlet and the water outlet penetrate through the through grooves to be located on the outer side of the airflow chimney, and the two ends of the annular pipe, provided with the water inlet and the water outlet, are in interference fit with the through grooves.
Through above-mentioned technical scheme, all be equipped with logical groove on the airflow chimney lateral wall of each layer of baffler lower surface, supply the water inlet and the delivery port of toroidal tube to stretch out the airflow chimney outside, make things convenient for the toroidal tube water inlet to connect the water pipe and trade water, also make things convenient for the toroidal tube delivery port to heat the log raft play of accomplishing, improve the efficiency of device, prevent that the toroidal tube in the waste gas passageway is in disorder, cause the waste gas passageway to block up. The two ends of the annular pipe, which are provided with the water inlet and the water outlet, are in interference fit with the through grooves, so that waste gas cannot flow out of the outside through the through grooves, and the heat recovery rate in the waste gas is improved.
The utility model discloses further set up to: the water inlet is provided with a first valve, and the water outlet is provided with a second valve.
Through the technical scheme, the first valve of the water inlet controls the on-off of the water inlet, so that water in the annular pipe can be prevented from easily flowing out to the outside, and the annular pipe is more convenient to change water; the second valve control the break-make of delivery port, the rivers velocity that flows into the ring pipe can be controlled to first valve and second valve, also can control the speed that rivers flow out the ring pipe, can decide the opening angle of first valve and second valve according to the temperature of exhaust emission and waste gas, makes the rivers in the ring pipe continuously flow, also can reach the heating effect of prediction, improves device recovery efficiency.
The utility model discloses further set up to: the baffle piece is rotatably arranged on the baffle plate at the uppermost end, the upper surface of the baffle piece is fixedly connected with a handle, and the tail end of the handle is arranged on the outer side of the airflow chimney.
Through above-mentioned technical scheme, it is located the upper surface of the separation plate of top to block, can rotate at the separation plate upper surface, the opening angle of the breach that control separation plate and air current chimney inner wall constitute, and then the flow velocity of control waste gas in waste gas passageway, make the heat energy in the waste gas fully retrieved and recycled, block a handle of fixed connection on the piece, the outside of air current chimney is stretched out to the end of handle, the opening angle size of user's accessible handle adjustment breach, make things convenient for the use that blocks, avoid the user to be scalded by the air current chimney or to be made dirty by waste gas.
The utility model discloses further set up to: the longitudinal section of the shielding device is designed to be inverted V-shaped, and the outer diameter of the bottom surface of the shielding device is larger than that of the airflow chimney.
Through the technical scheme, the longitudinal section of the shielding device is arranged in the inverted V shape, so that rainwater or sundries are not easy to accumulate on the outer surface of the shielding device, the device is convenient to clean, the outer diameter of the bottom surface of the shielding device is larger than the outer diameter of the airflow chimney, the rainwater or the sundries cannot fall into the airflow chimney, the device is not easy to damage, and the device is guaranteed not to be blocked by the sundries.
The utility model discloses further set up to: and the upper surface of the shielding device is provided with a lifting piece fixedly connected with the shielding device.
Through the technical scheme, the lifting piece enables the device to be more convenient and faster to carry and install, and the device is not easy to damage in the process of carrying the device.
To sum up, the utility model discloses a beneficial technological effect does:
1. the device increases the flow path of the waste gas in the airflow chimney, controls the speed of the waste gas discharging device, and ensures that the heat energy in the waste gas is fully recycled without waste;
2. the temperature difference between the heated water is not large, and the heated water can be directly and uniformly used without secondary heating;
3. the water in the annular pipe can realize flowing heating through the control of the first valve and the second valve, so that the device has high heat energy absorption efficiency.
Drawings
FIG. 1 is a schematic view of the overall structure of the present embodiment;
FIG. 2 is a partially exploded view of the present embodiment;
FIG. 3 is a schematic view of the internal structure of the present embodiment;
fig. 4 is a schematic view of the internal structure of the present embodiment.
Description of the drawings, 1, airflow chimney; 110. a shutter; 120. a support pillar; 130. lifting the part; 140. a through groove; 2. an annular tube; 210. a water inlet; 220. a water outlet; 3. a barrier plate; 4. an exhaust gas passage; 5. a blocking member; 510. a handle; 6. a first valve; 7. a second valve.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the waste heat recovery device of boiler exhaust gas disclosed by the present invention comprises an airflow chimney 1, wherein the airflow chimney 1 is cylindrical in overall appearance and is internally provided with a cavity for discharging exhaust gas; the port of the upper end of the airflow chimney 1 is fixedly connected with a support column 120, the other end of the support column 120 is fixedly connected with a shielding device 110, the longitudinal section of the shielding device 110 is in an inverted V shape, the outer diameter of the shielding device 110 is larger than that of the airflow chimney 1, rainwater or impurities are not easy to fall into the airflow chimney 1 through the shielding device 110, and waste gas is discharged to the outside through the support column 120 in a gap between the airflow chimney 1 and the shielding device 110. The upper surface of the shutter 110 is provided with a lifting member 130 fixedly connected with the shutter 110, and the lifting member 130 can be used for lifting the boiler waste gas waste heat recovery device.
Referring to fig. 2, the airflow chimney 1 is provided with a plurality of regularly arranged through grooves 140 on the outer circumferential surface.
Referring to fig. 4, a plurality of baffle plates 3 arranged up and down are arranged in the airflow chimney 1, the baffle plates 3 are fixedly arranged at the inner side of the airflow chimney 1, and the plurality of baffle plates 3 form a waste gas channel 4, so that the path of the waste gas flowing out of the airflow chimney 1 is prolonged. The lower surface of each baffle plate 3 is fixed with an annular pipe 2, cold water is arranged in the annular pipe 2, and the annular pipe 2 can absorb heat energy in waste gas and conduct the heat energy to the cold water in the pipe. A stopper 5 is provided on an upper surface of the barrier plate 3 adjacent to the stopper 110, the stopper 5 is coupled to the barrier plate 3 by a bolt, and the stopper 5 is rotatable about the bolt. A handle 510 is fixedly welded on the blocking member 5, one end of the handle 510, which is far away from the blocking member 5, extends to the outer side of the airflow chimney 1, the blocking member 5 is driven to rotate by moving the handle 510, and the blocking member 5 can change the size of the exhaust gas outlet, so as to change the speed of the exhaust gas exiting the airflow chimney 1.
Referring to fig. 4, the exhaust gas channel 4 formed by the baffle plate 3 is in an "S" shape, so that the time for the exhaust gas to pass through the airflow chimney 1 is increased, the flowing path is lengthened, and the annular pipe 2 arranged on the lower surface of the baffle plate 3 fully absorbs the heat energy carried by the exhaust gas.
Referring to fig. 2, the annular pipe 2 is annular, two ports of the annular pipe 2 extend from the through groove 140 of the airflow chimney 1 to the outside of the airflow chimney, the annular pipe 2 is in interference fit with the through groove 140, one port is a water inlet 210 and is responsible for injecting water into the annular pipe 2, and the other port is a water outlet 220 and is responsible for discharging water which has absorbed enough heat energy. The water inlet 210 is provided with a first valve 6, the first valve 6 can control the opening and closing of the water inlet 210, the water outlet 220 is provided with a second valve 7, and the second valve 7 can control the opening and closing of the water outlet 220.
The implementation principle of the embodiment is as follows: the lower end of the airflow chimney 1 is connected with an exhaust port of the boiler, so that all the waste gas generated by the boiler enters the airflow chimney 1. The first valve 6 is opened, the second valve 7 is closed, water is filled into the water inlet 210 of the annular pipe 2, and the first valve 6 is closed after the annular pipe 2 is filled with the water. The exhaust gas is in sufficient contact with each of the annular tubes 2 through the exhaust gas passage 4 until the exhaust gas flows to the upper end port of the flow chimney 1. And then according to the amount of the waste gas, the handle 510 controls the blocking piece 5, and the size of the gap formed by the uppermost blocking plate 3 and the inner wall of the airflow chimney 1 is adjusted by the blocking piece 5, so that the discharge speed of the waste gas is controlled, and the water in the annular pipe 2 and the annular pipe 2 has enough time to absorb the heat energy carried in the waste gas. When the water in the annular pipe 2 absorbs enough heat energy, the second valve 7 is opened to discharge and collect the water, the second valve 7 is closed again, the first valve 6 is opened, and the water is injected into the annular pipe 2 again, so that the circulation is realized.
When the discharge amount of the waste gas is large or the heat energy carried by the waste gas is large, the second valve 7 can be properly opened to enable the water in the annular pipe 2 to slowly flow out, then the first valve 6 is properly opened to slowly inject water into the annular pipe 2, so that the water absorbs enough heat energy in the process of flowing through the annular pipe 2, and the efficiency of the device for recovering the heat energy is improved.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides a boiler waste gas waste heat recovery device, includes air current chimney (1) and shielding ware (110) that is located air current chimney (1) top, is equipped with support column (120) between shielding ware (110) and air current chimney (1), and boiler exhaust emission port is connected to air current chimney (1) lower part port, and air current chimney (1) inside is equipped with annular tube (2), its characterized in that, air current chimney (1) inside is equipped with a plurality of baffling boards (3), and baffling board (3) and air current chimney (1) inner wall constitute "S" shape exhaust gas passageway (4), and baffling board (3) upper surface that is close to shielding ware (110) is equipped with the piece (5) of controlling exhaust emission speed, annular tube (2) coil in exhaust gas passageway (4).
2. The waste heat recovery device for boiler exhaust gas according to claim 1, characterized in that the number of the annular pipes (2) is multiple, and one annular pipe (2) is fixed below each baffle plate (3).
3. The boiler exhaust gas waste heat recovery device according to claim 2, wherein the inner diameter of the annular pipe (2) is larger closer to the lower end of the draft tube (1), and the inner diameter of the annular pipe (2) is smallest closer to the upper end of the draft tube (1).
4. The boiler waste gas waste heat recovery device according to any one of claims 1 to 3, wherein the annular pipe (2) comprises a water inlet (210) and a water outlet (220), the side wall of the airflow chimney (1) is provided with a plurality of through grooves (140), the water inlet (210) and the water outlet (220) pass through the through grooves (140) and are located outside the airflow chimney (1), and the two ends of the annular pipe (2) provided with the water inlet (210) and the water outlet (220) are in interference fit with the through grooves (140).
5. The boiler exhaust gas waste heat recovery device according to claim 4, characterized in that the water inlet (210) is provided with a first valve (6) and the water outlet (220) is provided with a second valve (7).
6. The waste heat recovery device for boiler exhaust gas according to claim 1, characterized in that the blocking member (5) is rotatably arranged on the uppermost blocking plate (3), the upper surface of the blocking member (5) is fixedly connected with a handle (510), and the tail end of the handle (510) is arranged outside the airflow flue pipe (1).
7. The boiler exhaust gas waste heat recovery device according to claim 1, wherein the longitudinal section of the shutter (110) is formed in an inverted "V" shape, and the outer diameter of the bottom surface of the shutter (110) is larger than that of the airflow chimney (1).
8. The boiler exhaust gas waste heat recovery device according to claim 7, wherein the upper surface of the shielding device (110) is provided with a lifting member (130) fixedly connected with the shielding device (110).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921337340.8U CN210718025U (en) | 2019-08-16 | 2019-08-16 | Boiler waste gas waste heat recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921337340.8U CN210718025U (en) | 2019-08-16 | 2019-08-16 | Boiler waste gas waste heat recovery device |
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| Publication Number | Publication Date |
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| CN210718025U true CN210718025U (en) | 2020-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921337340.8U Active CN210718025U (en) | 2019-08-16 | 2019-08-16 | Boiler waste gas waste heat recovery device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112254540A (en) * | 2020-09-16 | 2021-01-22 | 绍兴华鑫环保科技有限公司 | Waste heat boiler |
| CN113944934A (en) * | 2021-10-12 | 2022-01-18 | 黄晟语 | Heat accumulating type ceiling structure for grate furnace |
-
2019
- 2019-08-16 CN CN201921337340.8U patent/CN210718025U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112254540A (en) * | 2020-09-16 | 2021-01-22 | 绍兴华鑫环保科技有限公司 | Waste heat boiler |
| CN112254540B (en) * | 2020-09-16 | 2022-07-12 | 绍兴华鑫环保科技有限公司 | Waste heat boiler |
| CN113944934A (en) * | 2021-10-12 | 2022-01-18 | 黄晟语 | Heat accumulating type ceiling structure for grate furnace |
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