CN219389798U - Flue gas waste heat recovery device - Google Patents
Flue gas waste heat recovery device Download PDFInfo
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- CN219389798U CN219389798U CN202320367408.7U CN202320367408U CN219389798U CN 219389798 U CN219389798 U CN 219389798U CN 202320367408 U CN202320367408 U CN 202320367408U CN 219389798 U CN219389798 U CN 219389798U
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- heat
- flue gas
- heat exchange
- exchange box
- box body
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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 relates to the technical field of flue gas waste heat recovery systems and discloses a flue gas waste heat recovery device which comprises a heat exchange box body, wherein a flue gas inlet and a flue gas outlet are formed in the heat exchange box body, one end of the flue gas inlet of the heat exchange box body is connected with an air inlet pipe, a dust removing mechanism is arranged on the air inlet pipe, a water tank is arranged on the heat exchange box body, a side wall on one side of the water tank is a heat conducting plate, the heat conducting plate is tightly adhered to one side wall of the heat exchange box body, a plurality of heat conducting frames are arranged on one side of the heat conducting plate, which faces the heat exchange box body, and penetrate through the side wall of the heat exchange box body, so that one end, far away from the heat conducting plates, of the heat conducting frames is located in the heat exchange box body, a cleaning mechanism is arranged on one end, far away from the heat exchange box body, of the heat conducting plates is connected with a driving mechanism, and the driving mechanism is located in the heat exchange box body, and heat carried by flue gas is transferred to condensation water in the water tank by means of mutual matching of the heat conducting plates and the heat conducting frames, and the heat conducting frames are used for completing heat exchange operation.
Description
Technical Field
The utility model relates to the technical field of flue gas waste heat recovery systems, in particular to a flue gas waste heat recovery device.
Background
A large amount of flue gas can be generated in the work of coal-fired power plants and thermal power plants, a large amount of heat can be contained in the flue gas, and the heat in the flue gas needs to be recycled, but the existing equipment for recycling the heat of the flue gas has the following problems that a large amount of dust contained in the flue gas enters the equipment, dirt is formed on the surface of a heat conducting frame, the using effect of the heat conducting frame is affected, and the heat exchange efficiency is reduced; heat exchange is carried out between the heat of flue gas and the comdenstion water generally, is used for the heat of flue gas to the heating of comdenstion water to accomplish flue gas heat recycle, but after the long-time use of comdenstion water tank, can form the piling up of incrustation scale and impurity on the heat conduction bottom plate of water tank inside, further influence the heat exchange efficiency between heat conduction bottom plate and the comdenstion water.
Disclosure of Invention
The utility model aims to provide a flue gas waste heat recovery device, which aims to improve the heat exchange efficiency of the flue gas waste heat recovery device.
The utility model is realized by the following technical scheme: the flue gas waste heat recovery device comprises a heat exchange box body, wherein a flue gas inlet and a flue gas outlet of the heat exchange box body are respectively connected with an air inlet pipe and an air outlet pipe, and a dust removing mechanism is arranged on the air inlet pipe;
be provided with the water tank on the heat exchange box, water tank one side lateral wall is the heat conduction board, the heat conduction board with one side lateral wall of heat exchange box pastes tightly to set up, towards on the heat conduction board heat exchange box one side is provided with a plurality of heat conduction frame, the heat conduction frame runs through the lateral wall setting of heat exchange box makes the heat conduction frame keep away from the one end of heat conduction board is located in the heat exchange box, the heat conduction board is kept away from heat exchange box one side is provided with clearance mechanism, clearance mechanism one end is connected with actuating mechanism, actuating mechanism is located in the heat exchange box.
In order to prevent dust carried in the flue gas from flowing into the heat exchange box body, one side, close to the heat exchange box body, of the air inlet pipe is provided with the dust removing mechanism, and the flue gas flowing into the heat exchange box body is filtered by the dust removing mechanism, so that dirt formed on a heat conducting frame in the heat exchange box body by the dust is prevented, and the heat exchange efficiency of the heat conducting frame is reduced;
the heat carried by the flue gas is transferred to the condensation water in the water tank by utilizing the mutual matching of the heat conducting plate and the heat conducting frame, so that the heat exchange operation is completed;
meanwhile, in order to prevent scale from forming on one side of the heat-conducting plate in the water tank, which is in contact with water, after long-time use, the cleaning mechanism is arranged on one side of the heat-conducting plate, which is in contact with water, and the driving mechanism is used for driving the cleaning mechanism to clean the heat-conducting plate, so that dirt is prevented from forming on the heat-conducting plate, and the heat exchange effect of the heat-conducting plate is influenced.
In order to better realize the utility model, the dust removing mechanism further comprises a filter plate, wherein the filter plate is inserted on the air inlet pipe, and a detachable connecting structure is arranged between the filter plate and the air inlet pipe.
According to the utility model, the dust carried by the flue gas is filtered by the filter plate arranged on the air inlet pipe, so that dust accumulation on the heat conduction frame arranged in the heat exchange box body is avoided, the heat transfer efficiency of the heat conduction frame is reduced, and meanwhile, the filter plate and the air inlet pipe are arranged to be in a detachable connection structure, so that the filter plate can be conveniently detached and cleaned.
In order to better realize the utility model, a sealing ring is arranged at the position where the filter plate is arranged on the air inlet pipe.
In order to better realize the utility model, further, a limiting piece is arranged on the inner wall of the air inlet pipe at the position opposite to the filter plate inserting position, and an elastic clamping piece is arranged on the filter plate at the position close to the air inlet pipe.
According to the utility model, the limiting piece is arranged on the inner wall of the air inlet pipe so as to improve the installation stability of the filter plate in the air inlet pipe, and the elastic clamping piece is arranged on the filter plate, so that the filter plate is prevented from sliding out of the air inlet pipe when the filter plate is detached and installed conveniently by utilizing the elasticity of the elastic clamping piece.
In order to better realize the utility model, further, a plurality of spoilers are arranged in the heat exchange box body, and the heat conducting frames are arranged at the interval positions of the spoilers.
In order to better realize the utility model, further, the spoilers which are adjacently arranged are respectively arranged on the inner walls of the two sides of the heat exchange box body in a staggered way, and a certain gap is kept between the spoilers and the inner walls of the heat exchange box body on the opposite side.
According to the utility model, a labyrinth channel is formed for the flue gas flowing into the heat exchange box body according to the arrangement position of the spoiler, so that the time of the flue gas passing through the heat exchange box body is further prolonged, and a sufficient heat exchange effect is formed between the flue gas and the heat conduction frame.
In order to better realize the utility model, the heat conducting frame further comprises a columnar rod body provided with a plurality of heat conducting fins.
According to the utility model, the flow speed of the flue gas in the heat exchange box body is slowed down by utilizing the spoiler, and meanwhile, the heat conduction frame comprises the columnar rod body provided with the plurality of heat conduction fins, so that the contact area between the heat conduction frame and the flue gas is further increased, and a sufficient heat exchange effect is formed between the heat conduction frame and the flue gas.
In order to better realize the utility model, the driving mechanism further comprises an impeller, the impeller is connected with the cleaning device through a rotating rod, and the rotating rod is in rotary fit with the heat conducting plate and the heat exchange box body.
According to the utility model, the heat of the flue gas is utilized to exchange heat with the liquid in the water tank, meanwhile, the kinetic energy of the flue gas is recycled, the rotating rod is arranged at the connecting position of the heat-conducting plate and the heat-exchanging box body in a penetrating way, one end of the rotating rod is fixedly connected with the hairbrush, the blade is arranged at the other end of the rotating rod, the flue gas is driven to rotate in the flowing process of the flue gas in the heat-exchanging box body, and the cleaning mechanism can adopt the hairbrush as cleaning equipment, so that the hairbrush connected with the rotating rod rotates in the water tank, and the cleaning work of the heat-conducting plate is completed.
In order to better realize the utility model, a waterproof sleeve is arranged at the connecting position of the rotating rod and the heat conducting plate.
In the utility model, the waterproof sleeve is arranged in the water tank at the installation position corresponding to the rotating rod, so that the liquid leakage at the installation position of the rotating rod is avoided.
In order to better realize the utility model, the water tank is further provided with a condensate inlet and a condensate outlet, and the condensate inlet and the condensate outlet are respectively connected with a condensate circulating system.
In the utility model, the condensate inlet and the condensate outlet of the water tank are respectively connected with the condensate circulating system to recycle the condensate after heat exchange, thereby realizing full recovery and utilization of heat carried by flue gas.
Compared with the prior art, the utility model has the following advantages:
(1) According to the utility model, the dust removing mechanism is arranged on one side, close to the heat exchange box body, of the air inlet pipe, and the dust removing mechanism is used for filtering flue gas flowing into the heat exchange box body, so that dirt is prevented from being formed on the heat conduction frame in the heat exchange box body by dust, the heat exchange efficiency of the heat conduction frame is reduced, meanwhile, in order to prevent scale from being formed on one side, which is in contact with water, of the heat conduction plate in the water tank after long-time use, the cleaning mechanism is arranged on one side, which is in contact with water, of the heat conduction plate, and meanwhile, the cleaning mechanism is driven by the driving mechanism to clean the heat conduction plate, so that dirt is prevented from being formed on the heat conduction plate, and the heat exchange effect of the heat conduction plate is influenced.
(2) Utilize the spoiler slows down the flue gas flow velocity in the heat transfer box, simultaneously the heat conduction frame is including being provided with the columnar rod body of a plurality of heat conduction fin, further increases the area of contact between heat conduction frame and the flue gas makes form abundant heat transfer effect between heat conduction frame and the flue gas.
(3) The heat of the flue gas is utilized to exchange heat with the liquid in the water tank, the kinetic energy of the flue gas is recycled, the rotating rod penetrates through the connecting position of the heat conducting plate and the heat exchange box body, one end of the connecting rod is fixedly connected with the hairbrush, the other end of the rotating rod is provided with the blade, the blade is driven to rotate in the flowing process of the flue gas in the heat exchange box body, and the cleaning mechanism can adopt a brush as cleaning equipment, so that the brush connected with the rotating rod rotates in the water tank to complete the cleaning work of the heat conducting plate.
Drawings
The utility model is further described with reference to the following drawings and examples, and all inventive concepts of the utility model are to be considered as being disclosed and claimed.
Fig. 1 is a schematic structural diagram of one embodiment of a flue gas waste heat recovery device in the present utility model.
Fig. 2 is a schematic cross-sectional structure of the water tank and the heat exchange tank of fig. 1.
Fig. 3 is a schematic cross-sectional view of the dust removing mechanism in fig. 1 at a corresponding position.
Fig. 4 is an enlarged schematic view of the structure at the a position in fig. 2.
Wherein: 1-a heat exchange box body; 2-an air inlet pipe; 3-a dust removing mechanism; 31-a sealing ring; 32-a filter plate; 33-elastic clip; 34-a limiting piece; 4-an air outlet pipe; 5-spoilers; 6-a heat conduction frame; 7-a water tank; 8-a heat-conducting plate; 9-a driving mechanism; 91-rotating the rod; 92-impeller; 93-waterproof sleeve; 94-brush.
Detailed Description
Example 1:
the flue gas waste heat recovery device in the embodiment, as shown in fig. 1 and 2, comprises a heat exchange box body 1, wherein a flue gas inlet and a flue gas outlet of the heat exchange box body 1 are respectively connected with an air inlet pipe 2 and an air outlet pipe 4, and a dust removing mechanism 3 is arranged on the air inlet pipe 2;
be provided with water tank 7 on the heat transfer box 1, water tank 7 one side lateral wall is heat conduction board 8, heat conduction board 8 with one side lateral wall of heat transfer box 1 pastes tightly to set up, towards on the heat conduction board 8 heat transfer box 1 one side is provided with a plurality of heat conduction frame 6, heat conduction frame 6 runs through the lateral wall setting of heat transfer box 1 makes heat conduction frame 6 keep away from the one end of heat conduction board 8 is located in the heat transfer box 1, heat conduction board 8 is kept away from heat transfer box 1 one side is provided with clearance mechanism, clearance mechanism one end is connected with actuating mechanism 9, actuating mechanism 9 is located in the heat transfer box 1.
Further, as shown in fig. 3, the dust removing mechanism 3 includes a filter plate 32, the filter plate 32 is inserted on the air inlet pipe 2, and a detachable connection structure is formed between the filter plate 32 and the air inlet pipe 2.
Further, a sealing ring 31 is arranged at the position where the filter plate 32 is arranged on the air inlet pipe 2.
Further, a limiting member 34 is disposed on the inner wall of the air inlet pipe 2 at a position corresponding to the filter plate 32, and an elastic clamping member 33 is disposed on the filter plate 32 at a position close to the air inlet pipe 2.
Further, as shown in fig. 2, a plurality of spoilers 5 are disposed in the heat exchange box 1, and the heat conducting frame 6 is disposed at a position spaced apart from the spoilers 5.
Further, the spoilers 5 arranged adjacently are respectively arranged on the inner walls of the two sides of the heat exchange box body 1 in a staggered manner, and a certain gap is kept between the spoilers 5 and the inner wall of the heat exchange box body 1 on the opposite side.
Further, the heat conducting frame 6 includes a columnar rod body provided with a plurality of heat conducting fins.
Further, as shown in fig. 2 and 4, the driving mechanism 9 includes an impeller 92, the impeller 92 is connected with the cleaning device through a rotating rod 91, and the rotating rod 91 is in rotary fit with the heat conducting plate 8 and the heat exchange box 1.
Further, a waterproof jacket 93 is provided at the connection position of the rotating rod 91 and the heat conducting plate 8.
Further, a condensate inlet and a condensate outlet are arranged on the water tank 7, and the condensate inlet and the condensate outlet are respectively connected with a condensate circulating system.
In the use process of the embodiment, the flue gas flows into the heat exchange box body 1 through the air inlet pipe 2, and at the moment, dust in the flue gas is screened by the filter plates 32, so that the dust carried in the flue gas can not flow into the heat exchange box body 1, and the heat exchange efficiency between the heat conduction frame 6 in the heat exchange box body 1 and the flue gas is ensured;
in order to fully absorb and utilize heat carried in the flue gas, a plurality of spoilers 5 are arranged in the heat exchange box body 1 to form a labyrinth flow passage for the flue gas, so that the flow speed of the flue gas in the heat exchange box 1 is increased, the heat exchange time between the heat conduction frame 6 and the flue gas is prolonged, and a sufficient heat exchange reaction is formed between the heat conduction frame 6 and the flue gas;
the driving mechanism 9 comprises a rotating rod 91 provided with blades, the blades are positioned in the heat exchange box 1, and kinetic energy carried by flue gas drives the rotating rod 91 of the blades to rotate, so that the brush 94 cleans the heat conducting plate 8 in the water tank 7, dirt on the heat conducting plate 8 is avoided, and the heating efficiency of the heat conducting plate 8 to condensate in the water tank 7 is influenced;
the water tank 7 is provided with a condensate inlet and a condensate outlet which are connected with a condensate circulating system, so that the condensate is heated and recycled, and the recycling of the heat and the kinetic energy of the flue gas is realized.
The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model in any way, and any simple modification and equivalent variation of the above embodiment according to the technical matter of the present utility model falls within the scope of the present utility model.
Claims (10)
1. The flue gas waste heat recovery device is characterized by comprising a heat exchange box body (1), wherein a flue gas inlet and a flue gas outlet of the heat exchange box body (1) are respectively connected with an air inlet pipe (2) and an air outlet pipe (4), and a dust removing mechanism (3) is arranged on the air inlet pipe (2);
be provided with water tank (7) on heat exchange box (1), water tank (7) one side lateral wall is heat conduction board (8), heat conduction board (8) with one side lateral wall of heat exchange box (1) pastes tightly to set up, orientation on heat conduction board (8) heat exchange box (1) one side is provided with a plurality of heat conduction frame (6), heat conduction frame (6) run through the lateral wall setting of heat exchange box (1), make heat conduction frame (6) keep away from one end of heat conduction board (8) is located in heat exchange box (1), heat conduction board (8) are kept away from heat exchange box (1) one side is provided with clearance mechanism, clearance mechanism one end is connected with actuating mechanism (9), actuating mechanism (9) are located in heat exchange box (1).
2. The flue gas waste heat recovery device according to claim 1, wherein the dust removing mechanism (3) comprises a filter plate (32), the filter plate (32) is inserted on the air inlet pipe (2), and a detachable connection structure is arranged between the filter plate (32) and the air inlet pipe (2).
3. The flue gas waste heat recovery device according to claim 2, wherein a sealing ring (31) is arranged at a position on the air inlet pipe (2) where the filter plate (32) is arranged.
4. The flue gas waste heat recovery device according to claim 2, wherein a limiting piece (34) is arranged on the inner wall of the air inlet pipe (2) at an inserting position relative to the filter plate (32), and an elastic clamping piece (33) is arranged on the filter plate (32) at a position close to the air inlet pipe (2).
5. The flue gas waste heat recovery device according to claim 1, wherein a plurality of spoilers (5) are arranged in the heat exchange box body (1), and the heat conducting frames (6) are arranged at intervals of the spoilers (5).
6. The flue gas waste heat recovery device according to claim 5, wherein the spoilers (5) adjacently arranged are respectively arranged on the inner walls of the two sides of the heat exchange box body (1) in a staggered manner, and a certain gap is kept between the spoilers (5) and the inner walls of the heat exchange box body (1) on the opposite side.
7. The flue gas waste heat recovery device according to claim 5, wherein the heat conducting rack (6) comprises a cylindrical rod body provided with a plurality of heat conducting fins.
8. The flue gas waste heat recovery device according to claim 1, wherein the driving mechanism (9) comprises an impeller (92), the impeller (92) is connected with the cleaning device through a rotating rod (91), and the rotating rod (91) is in rotary fit with the heat conducting plate (8) and the heat exchange box body (1).
9. The flue gas waste heat recovery device according to claim 8, wherein a waterproof jacket (93) is provided at a connection position of the rotating rod (91) and the heat conducting plate (8).
10. Flue gas waste heat recovery device according to claim 1, characterized in that the water tank (7) is provided with a condensate inlet and a condensate outlet, which are connected with a condensate circulation system, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320367408.7U CN219389798U (en) | 2023-03-02 | 2023-03-02 | Flue gas waste heat recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320367408.7U CN219389798U (en) | 2023-03-02 | 2023-03-02 | Flue gas waste heat recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219389798U true CN219389798U (en) | 2023-07-21 |
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ID=87192278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320367408.7U Active CN219389798U (en) | 2023-03-02 | 2023-03-02 | Flue gas waste heat recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219389798U (en) |
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2023
- 2023-03-02 CN CN202320367408.7U patent/CN219389798U/en active Active
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