CN215723317U - Shell and tube type direct contact type flue gas waste heat recovery device - Google Patents
Shell and tube type direct contact type flue gas waste heat recovery device Download PDFInfo
- Publication number
- CN215723317U CN215723317U CN202122346295.6U CN202122346295U CN215723317U CN 215723317 U CN215723317 U CN 215723317U CN 202122346295 U CN202122346295 U CN 202122346295U CN 215723317 U CN215723317 U CN 215723317U
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- China
- Prior art keywords
- heat exchange
- water
- box body
- exchange box
- flue gas
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 239000003546 flue gas Substances 0.000 title claims abstract description 38
- 239000002918 waste heat Substances 0.000 title claims abstract description 26
- 238000011084 recovery Methods 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 125
- 239000007921 spray Substances 0.000 claims abstract description 32
- 239000000779 smoke Substances 0.000 claims abstract description 29
- 238000005507 spraying Methods 0.000 claims abstract description 27
- 230000001502 supplementing effect Effects 0.000 claims description 6
- 239000003814 drug Substances 0.000 claims description 5
- 238000005192 partition Methods 0.000 claims description 4
- 230000003020 moisturizing effect Effects 0.000 description 12
- 238000010438 heat treatment Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000003472 neutralizing effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Images
Classifications
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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
Abstract
The utility model discloses a shell and tube direct contact type flue gas waste heat recovery device, which relates to the technical field of flue gas recovery devices and comprises the following components: the side wall of the heat exchange box body is provided with a smoke inlet, the top of the heat exchange box body is provided with a smoke outlet, and the bottom of the heat exchange box body is provided with a water outlet; the water spraying device is fixed in the heat exchange box body, sprays water to the bottom of the heat exchange box body and is positioned above the smoke inlet; the water spraying device can be communicated with the water outlet through a circulating pipe, and a circulating water pump is arranged on the circulating pipe. The utility model can directly transfer the flue gas temperature to the secondary water in the heat exchange tube through the spray water, thereby realizing the utilization of the flue gas waste heat.
Description
Technical Field
The utility model relates to the technical field of flue gas recovery devices, in particular to a shell and tube type direct contact flue gas waste heat recovery device.
Background
At present, central heating is mostly adopted in the heating mode of northern town buildings, so that the waste of energy sources can be reduced, and the thermal comfort can be improved.
The existing centralized heating mode is to heat water by a boiler and then to deliver the water with a certain temperature to each household, so that the process of centralized heating can be completed.
However, the above prior art solutions have the following drawbacks: a large amount of flue gas with higher temperature can be generated in the working process of the boiler, so that the high-temperature flue gas is directly discharged into the air, not only is the resource waste caused, but also the environment is polluted.
Therefore, a flue gas waste heat recovery device is urgently needed in the market for solving the problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a shell-and-tube direct contact type flue gas waste heat recovery device, which is used for solving the technical problems in the prior art and can transfer the waste heat of flue gas to secondary water to realize the effect of waste heat recovery.
In order to achieve the purpose, the utility model provides the following scheme:
the utility model discloses a shell and tube direct contact type flue gas waste heat recovery device, which comprises:
the side wall of the heat exchange box body is provided with a smoke inlet, the top of the heat exchange box body is provided with a smoke outlet, and the bottom of the heat exchange box body is provided with a water outlet;
the water spraying device is fixed in the heat exchange box body, sprays water to the bottom of the heat exchange box body, and is positioned above the smoke inlet;
the water spraying device is communicated with the water outlet through a circulating pipe, and a circulating water pump is arranged on the circulating pipe.
Preferably, the water spraying device comprises a water spraying pipe, a plurality of nozzles are arranged on the water spraying pipe, the nozzles face the bottom of the heat exchange box body, and one end of the water spraying pipe can be communicated with the circulating pipe.
Preferably, the heat exchange device further comprises a plurality of flow guide partition plates, and the flow guide partition plates are fixed on the inner wall of the heat exchange box body.
Preferably, the bottom of the heat exchange box body is provided with a water outlet, and the water outlet is connected with a water drain pipe.
Preferably, be equipped with the moisturizing device on the lateral wall of heat transfer box, the moisturizing device includes moisturizing pipe and ball-cock assembly, the ball-cock assembly is fixed in the inner of moisturizing pipe, the ball-cock assembly is located in the heat transfer box, the moisturizing water source is connected to the outer end of moisturizing pipe.
Preferably, an overflow port is arranged on the side wall of the heat exchange box body, the overflow port is connected with an overflow pipe, and the overflow port is positioned below the smoke inlet.
Preferably, still be equipped with the pencil on the lateral wall of heat transfer box, the inner of pencil is located in heat transfer device, the outer end of pencil is connected with the jar that adds the medicine, be equipped with on the pencil and add the medicine ball valve.
Preferably, a heat exchange tube access hole and a nozzle access hole are formed in the side wall of the heat exchange box body.
Compared with the prior art, the utility model has the following technical effects:
1. the temperature of the flue gas can be directly transferred to secondary water in the heat exchange tube through spray water, so that the utilization of the waste heat of the flue gas is realized;
2. the overflow port is arranged to prevent the spray water from flowing back to the smoke inlet when the spray water is too much due to the condensation of the vapor in the smoke;
3. and a dosing pipe is arranged on the side wall of the heat exchange box body and used for neutralizing spray water and discharging the spray water after the spray water reaches a discharge standard.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in 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 invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a shell-and-tube direct contact flue gas waste heat recovery device according to an embodiment of the present invention;
in the figure: 1-1, a smoke inlet; 1-2, a smoke outlet; 1-3, flue; 2-1, a water spraying pipe; 2-2, a nozzle; 3. a heat exchange device; 3-1, heat exchange tubes; 4. a water outlet pipe; 5-1, a secondary water supply pipe; 5-2, a secondary water return pipe; 6-1, a nozzle access hole; 6-2, a heat exchange tube access hole; 7-1, an overflow port; 7-2, a water discharge opening; 8-1, adding a medicine tank; 8-2, adding a medicine ball valve; 9. a flow guide clapboard; 10. and a water replenishing device.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The utility model aims to provide a shell-and-tube direct contact type flue gas waste heat recovery device, which is used for solving the technical problems in the prior art and can transfer the waste heat of flue gas to secondary water to realize the effect of waste heat recovery.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1, the embodiment provides a shell and tube direct contact type flue gas waste heat recovery device, including:
the whole heat exchange box body is made of stainless steel, a smoke inlet 1-1 is formed in the side wall of the heat exchange box body, the smoke inlet 1-1 is used for being connected with a smoke inlet channel, a smoke outlet 1-2 is formed in the top of the heat exchange box body, the smoke outlet 1-2 is used for being connected with a smoke outlet channel, a channel from the smoke inlet 1-1 to the smoke outlet 1-2 is a flue 1-3, a water outlet is formed in the bottom of the heat exchange box body, the water outlet is connected with a water outlet pipe 4, and the other end of the water outlet pipe 4 is connected with a circulating pipe;
the water spraying device is fixed in the heat exchange box body and is connected with the water outlet pipe 4 through a circulating pipe, the water spraying device sprays water to the bottom of the heat exchange box body, water at the bottom of the heat exchange box body can also flow back to the water spraying device through the circulating pipe, and the water spraying device is positioned above the smoke inlet 1-1;
the heat exchange device 3 is fixed at the bottom of the heat exchange box body, the heat exchange device 3 comprises a heat exchange tube 3-1, two ends of the heat exchange tube 3-1 are respectively connected with a secondary water supply tube 5-1 and a secondary water return tube 5-2, the secondary water supply tube 5-1 and the secondary water return tube 5-2 are positioned on the outer wall of the heat exchange box body, and the secondary water supply tube 5-1 is higher than the secondary water return tube 5-2.
When the heat exchange box is used, smoke enters the heat exchange box body through the smoke inlet 1-1 and moves upwards towards the smoke outlet 1-2. Meanwhile, the water spraying device sprays low-temperature spray water downwards, when the spray water meets high-temperature flue gas, the spray water absorbs heat of the flue gas, so that the temperature of the flue gas is reduced, partial steam in the flue gas is separated out, a large amount of heat is exchanged into the spray water, the low-temperature flue gas is discharged from the flue gas outlet 1-2, the low-temperature spray water obtains the heat and partial steam in the flue gas, the heat and partial steam are changed into high-temperature spray water, and primary heat exchange is completed. Then the high-temperature spray water enters the heat exchange device 3, heat is transferred to a secondary side system through a heat exchange tube 3-1 in the heat exchange device 3, secondary return water enters the heat exchange tube 3-1 from a secondary water return tube 5-2, the temperature is raised after the heat of the high-temperature spray water is absorbed, and the high-temperature spray water returns to a secondary heat supply system through a secondary water supply tube 5-1. And finishing the second heat exchange, and enabling the high-temperature spray water to flow out of the water outlet after being cooled and to enter the water spraying device again under the driving of the circulating water pump in the circulating pipe. Therefore, the whole work flow of the product is completed, and the recovery of the waste heat of the flue gas is completed.
In this embodiment, the water spraying device comprises a water spraying pipe 2-1, the water spraying pipe 2-1 is in threaded connection with a plurality of nozzles 2-2, the nozzles 2-2 are connected towards the bottom of the heat exchange box body, and one end of the water spraying pipe 2-1 is connected with a water outlet pipe 4 through a circulating pipe. When the water-cooled heat exchanger is used, water in the heat exchanger 3 flows back to the water spraying pipe 2-1 through the circulating pipe, and then is sprayed to the heat exchanger 3 through the nozzle 2-2 on the water spraying pipe 2-1.
In this embodiment, the heat exchanger 3 further includes a plurality of baffle plates 9, the baffle plates 9 are fixed on the inner wall of the heat exchanger box, the baffle plates 9 are respectively fixed on two sides of the inner wall of the heat exchanger box, and the baffle plates 9 located on two sides are distributed at intervals, so that the heat exchange of fluid inside and outside the heat exchanger tube 3-1 is in a counter-current heat exchange mode, and the flowing distance of spray water can be increased, thereby increasing the heat exchange time of high-temperature spray water and the heat exchanger tube 3-1, and improving the heat exchange effect.
In this embodiment, the bottom of the heat exchange box is provided with a water outlet 7-2, the water outlet 7-2 is connected with a water drain pipe, and the water drain pipe is provided with a valve. When the device is required to be integrally detected and maintained, the spray water positioned in the heating device part is required to be discharged, and at the moment, only the water drain pipe needs to be opened, and the water is discharged.
In this embodiment, be equipped with moisturizing device 10 on the lateral wall of heat transfer box, moisturizing device 10 includes moisturizing pipe and ball-cock assembly, and the ball-cock assembly is fixed in the inner of moisturizing pipe, and the ball-cock assembly is located the heat transfer box, can be used to control the surface of water height, and the moisturizing water source is connected to the outer end of moisturizing pipe. Before the heat exchange work needs to be carried out or when the water at the position of the heat exchange device 3 needs to be overhauled and discharged, the position of the heat exchange device 3 is free of water, when the flue gas waste heat is required to be recovered, water needs to be supplemented into the heat exchange device in advance, and a certain amount of water can be injected into the heat exchange box body through the water supplementing pipe at the moment.
In this embodiment, an overflow port 7-1 is provided on the side wall of the heat exchange box, the overflow port 7-1 is connected to an overflow pipe, the overflow port 7-1 is located below the smoke inlet 1-1 and above the secondary water supply pipe 5-1, and the specific position can be set according to the size of the heat exchange box. When the water level of the spray water is too high, the spray water flows out from the overflow port 7-1, and the spray water is prevented from reversely flowing into the smoke inlet 1-1.
In this embodiment, a dosing pipe is further arranged on the side wall of the heat exchange box body, the inner end of the dosing pipe is located in the heat exchange device 3, the outer end of the dosing pipe is connected with a dosing tank 8-1, and a dosing ball valve 8-2 is arranged on the dosing pipe and used for controlling circulation of the dosing pipe. When the spray water passes through high-temperature flue gas, the spray water is acidic and does not meet the emission standard, so that an alkaline reagent, such as sodium hydroxide, needs to be placed in the dosing tank 8-1 for neutralizing the spray water, and then the spray water is discharged from a water outlet.
In the embodiment, a heat exchange tube access hole 6-2 and a nozzle access hole 6-1 are formed in the side wall of the heat exchange box body, wherein the heat exchange tube access hole 6-2 is as high as the heat exchange tube 3-1, the nozzle access hole 6-1 is as high as the nozzle 2-2, and the heat exchange tube access hole 6-2 and the nozzle access hole 6-1 are provided with switch doors, so that the inspection and maintenance of workers are facilitated.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the utility model.
Claims (8)
1. The utility model provides a shell and tube direct contact waste heat from flue gas recovery device which characterized in that includes:
the side wall of the heat exchange box body is provided with a smoke inlet, the top of the heat exchange box body is provided with a smoke outlet, and the bottom of the heat exchange box body is provided with a water outlet;
the water spraying device is fixed in the heat exchange box body, sprays water to the bottom of the heat exchange box body, and is positioned above the smoke inlet;
the water spraying device is communicated with the water outlet through a circulating pipe, and a circulating water pump is arranged on the circulating pipe.
2. The shell-and-tube direct contact type flue gas waste heat recovery device according to claim 1, wherein: the water spraying device comprises a water spraying pipe, a plurality of nozzles are arranged on the water spraying pipe, the nozzles face the bottom of the heat exchange box body, and one end of the water spraying pipe is communicated with the circulating pipe.
3. The shell-and-tube direct contact type flue gas waste heat recovery device according to claim 1, wherein: the heat exchange device further comprises a plurality of flow guide partition plates, and the flow guide partition plates are fixed on the inner wall of the heat exchange box body.
4. The shell-and-tube direct contact type flue gas waste heat recovery device according to claim 1, wherein: and a water outlet is formed in the bottom of the heat exchange box body and connected with a water drain pipe.
5. The shell-and-tube direct contact type flue gas waste heat recovery device according to claim 1, wherein: the heat exchange box is characterized in that a water supplementing device is arranged on the side wall of the heat exchange box body and comprises a water supplementing pipe and a ball float valve, the ball float valve is fixed at the inner end of the water supplementing pipe and is located in the heat exchange box body, and a water supplementing water source is connected to the outer end of the water supplementing pipe.
6. The shell-and-tube direct contact type flue gas waste heat recovery device according to claim 1, wherein: an overflow port is arranged on the side wall of the heat exchange box body, the overflow port is connected with an overflow pipe, and the overflow port is positioned below the smoke inlet.
7. The shell-and-tube direct contact type flue gas waste heat recovery device according to claim 1, wherein: still be equipped with on the lateral wall of heat transfer box with the pencil, the inner of pencil is located in heat transfer device, the outer end of pencil is connected with the medicinal cupping, be equipped with on the pencil with the medicine ball valve.
8. The shell-and-tube direct contact type flue gas waste heat recovery device according to claim 1, wherein: and a heat exchange tube access hole and a nozzle access hole are formed in the side wall of the heat exchange box body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122346295.6U CN215723317U (en) | 2021-09-27 | 2021-09-27 | Shell and tube type direct contact type flue gas waste heat recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122346295.6U CN215723317U (en) | 2021-09-27 | 2021-09-27 | Shell and tube type direct contact type flue gas waste heat recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215723317U true CN215723317U (en) | 2022-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122346295.6U Active CN215723317U (en) | 2021-09-27 | 2021-09-27 | Shell and tube type direct contact type flue gas waste heat recovery device |
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| CN (1) | CN215723317U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114739208A (en) * | 2022-04-11 | 2022-07-12 | 江苏德翔化工机械有限公司 | Combined type heat exchanger |
-
2021
- 2021-09-27 CN CN202122346295.6U patent/CN215723317U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114739208A (en) * | 2022-04-11 | 2022-07-12 | 江苏德翔化工机械有限公司 | Combined type heat exchanger |
| CN114739208B (en) * | 2022-04-11 | 2022-12-16 | 江苏德翔化工机械有限公司 | Combined type heat exchanger |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Room 2273, block B, No. 9, Chaoqian Road, Changping District, Beijing 102299 Patentee after: Jinfang Energy Group Co.,Ltd. Address before: Room 2273, block B, No. 9, Chaoqian Road, Changping District, Beijing 102299 Patentee before: BEIJING KINGFORE HVAC ENERGY SAVING TECHNOLOGY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |