CN211215485U - Improved evaporator waste heat heating system - Google Patents
Improved evaporator waste heat heating system Download PDFInfo
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- CN211215485U CN211215485U CN201921775218.9U CN201921775218U CN211215485U CN 211215485 U CN211215485 U CN 211215485U CN 201921775218 U CN201921775218 U CN 201921775218U CN 211215485 U CN211215485 U CN 211215485U
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Abstract
The utility model discloses an improved evaporator waste heat heating system, which belongs to the field of new energy and high-efficiency energy conservation-industrial energy conservation, and comprises a flash tank, a heat exchanger, a condensed water storage tank and a heater; an inlet of the flash tank is connected with an external high-temperature condensed water pipeline, a steam outlet of the flash tank is connected with a hot gas inlet of the heat exchanger, and a condensed water outlet of the flash tank is connected with a water inlet of the heat exchanger; the hot gas inlet of the heat exchanger is additionally connected with an external high-temperature waste gas pipeline, the hot gas outlet of the heat exchanger is connected with the inlet of the heater, and the water outlet of the heat exchanger is connected with the water inlet of the condensed water storage tank; the water outlet of the condensed water storage tank is connected with the inlet of the flash tank; a secondary steam outlet of the heater is connected to an external condensation water outlet pipeline through a surface condenser, and a condensed water outlet of the heater is connected to the external condensation water outlet pipeline; the external condensation water outlet pipeline is connected with the bottommost part of the heat exchange pipe. The utility model discloses simple structure technology, use convenient operation can realize the waste temperature effective utilization of high temperature comdenstion water, waste gas.
Description
Technical Field
The utility model belongs to the new forms of energy and energy-efficient-industry energy-conserving field, concretely relates to utilize waste gas, comdenstion water waste heat as the improved generation evaporimeter waste heat heating system of heating heat source.
Background
The waste heat utilization evaporator is high-efficiency and energy-saving evaporation concentration equipment, condensed water or steam waste heat and pressure are fully utilized as equipment of an evaporation heat source, and the running cost of the equipment is far lower than that of a multi-effect evaporation unit which directly uses steam as the heat source. A large amount of high-temperature steam and condensed water are generated after deep processing enterprises such as domestic grain, starch, alcohol and the like process products by using raw steam, and are directly discharged in the past, so that resources are wasted and the environment is damaged. Therefore, under the trend that nonrenewable resources such as coal and the like are reduced day by day and the price of the raw steam is continuously increased, the waste heat utilization evaporator is accepted by the wide users by the remarkable characteristics of energy conservation and high efficiency.
Most of waste heat evaporators in domestic markets pump collected high-temperature waste gas to a steam device through a high-power fan to directly heat an evaporation device. The process has the defects that the waste gas contains a plurality of impurities and fine fibers which directly heat the evaporator, the fine fibers and the like can be adsorbed on the wall of the evaporator, and the heat exchange tube can be blocked after a long time. And the caliber of the pipeline for conveying the waste gas is large, the heat loss is large when the pipeline is used for conveying the waste gas in a long distance, and the investment cost is increased. And the high-temperature condensed water is not utilized, so that the energy consumption is greatly increased, and the effects of energy conservation and emission reduction cannot be achieved.
Chinese patent document CN 103691139B discloses an evaporator waste heat heating device, which comprises three groups of heating devices with each effect, namely a heating device with a heater I, a heating device with a heater II and a heating device with a heater III in sequence, wherein the heating device with the heater I comprises a heater I and a condensed water flash tank I; the heating device of the heater II comprises a separator I, a waste gas flash evaporation tank I, a heater II and a waste energy absorption tower; and the heating device of the heater III comprises a separator II, a condensed water flash tank II, a waste gas flash tank II and a heater III. The equipment and the connecting pipeline are complicated, the operation is inconvenient, the equipment operation cost is high, and if the improved evaporator waste heat heating system which can improve the waste heat use efficiency, realize the effective utilization of the waste heat of high-temperature condensed water and waste gas and reduce the equipment operation cost is designed, the process is simple, and the improved evaporator waste heat heating system with less equipment number has very important significance.
Disclosure of Invention
An object of the utility model is to overcome the not enough of above-mentioned technique, provide a simple structure technology, use convenient operation, can realize the improved generation evaporimeter waste heat heating system of the effective utilization of waste temperature of high temperature comdenstion water, waste gas.
In order to realize the purpose of the utility model, the utility model adopts the technical scheme that: an improved evaporator waste heat heating system comprises a flash tank, a heat exchanger, a condensed water storage tank and a heater, and is characterized in that the heat exchanger comprises a horizontally arranged pipe body, a water inlet is formed in the lower portion of one end of the pipe body, a water outlet is formed in the lower portion of the other end of the pipe body, a hot gas inlet is formed in the top of one end of the pipe body, a hot gas outlet is formed in the top of the other end of the pipe body, an arc-shaped heat exchange pipe is arranged in the pipe body; the inlet of the flash tank is connected with an external high-temperature condensed water pipeline, a steam outlet pipeline of the flash tank is connected to a hot gas inlet of the heat exchanger, and a condensed water outlet pipeline of the flash tank is connected to a water inlet of the heat exchanger; the hot gas inlet of the heat exchanger is additionally connected with an external high-temperature waste gas pipeline, a hot gas outlet pipeline of the heat exchanger is connected to the inlet of the heater, and a water outlet pipeline of the heat exchanger is connected to the water inlet of the condensed water storage tank; a water outlet pipeline of the condensed water storage tank is connected to an inlet of the flash tank; a secondary steam outlet of the heater is connected to an external condensation water outlet pipeline through a surface condenser, and a condensed water outlet pipeline of the heater is connected to the external condensation water outlet pipeline; and the external condensation water outlet pipeline extends into the bottommost part of the heat exchange pipe through a pipeline and is communicated with the heat exchange pipe.
Further, the heat exchange tube is a finned tube.
Furthermore, water pumps are arranged on a connecting pipeline of the condensed water storage tank and the flash tank and an external condensed water outlet pipeline.
Furthermore, a paddle wheel is installed at a hot gas inlet of the heat exchange tube, a filter screen is installed at a hot gas outlet of the heat exchange tube, the paddle wheel is used for uniformly mixing steam and high-temperature waste gas, the steam condensation is promoted to wrap impurities in the waste gas into a water stream to the bottommost part of the heat exchange tube, and the filter screen is used for intercepting the impurities in the residual waste gas.
Furthermore, the periphery of the condensed water storage tank is provided with a vacuum jacket, so that the heat loss of the condensed water in the condensed water storage tank is reduced.
The utility model has the advantages that: high-temperature condensed water (about 120 ℃) generated in the material drying production process of an enterprise is conveyed to a flash tank for flash evaporation, steam which is flashed enters a heat exchanger, and high-temperature waste gas generated in the production process is conveyed to the heat exchanger and mixed; condensed water which is flashed off enters a heat exchanger, the temperature of the condensed water is raised under the heat exchange of high-temperature steam and waste gas, the condensed water is used as secondary flash evaporation, the high-temperature steam is condensed due to slight temperature reduction, and impurities in the wrapped waste gas are changed into water drops to be deposited at the bottommost part of the arc-shaped heat exchange tube; the high-temperature steam and the waste gas are finally used as heat sources of a heater, namely as heat sources of an evaporator; the system is simple in process and convenient to operate, high-temperature steam and waste gas can be simultaneously utilized, equipment blockage cannot be influenced, the pipeline conveying distance is short, heat loss is small, efficient utilization of the high-temperature steam and the waste gas is achieved, and the enterprise operation cost is greatly reduced.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: the system comprises a flash tank 1, a heat exchanger 2, a condensed water storage tank 3, a heater 4, a pipe body 21, a water inlet 22 of the heat exchanger, a water outlet 23 of the heat exchanger, a hot gas inlet 24 of the heat exchanger, a hot gas outlet 25 of the heat exchanger, a heat exchange pipe 26, an inlet 11 of the flash tank, an external high-temperature condensed water pipeline 5, a steam outlet 12 of the flash tank, a condensed water outlet 13 of the flash tank, an external high-temperature waste gas pipeline 6, a water inlet 31 of the condensed water storage tank, a water outlet 32 of the condensed water storage tank, a heater inlet 41, a secondary steam outlet 42 of the heater, a condensed water outlet 43 of the heater, a surface condenser 7, an external condensed water outlet pipeline.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
As shown in fig. 1, an improved evaporator waste heat heating system comprises a flash tank 1, a heat exchanger 2, a condensed water storage tank 3 and a heater 4, wherein the heat exchanger 2 comprises a horizontally arranged pipe body 21, a water inlet is formed in the lower portion of one end of the pipe body 21, a water outlet is formed in the lower portion of the other end of the pipe body 21, a hot gas inlet is formed in the top of one end of the pipe body 21, a hot gas outlet is formed in the top of the other end of the pipe body 21, an arc-shaped heat exchange pipe 26 is arranged in the pipe body 21, the heat; an inlet 11 of the flash tank 1 is connected with an external high-temperature condensed water pipeline 5, a steam outlet 12 of the flash tank 1 is connected to a hot gas inlet 24 of the heat exchanger 2 through a pipeline, and a condensed water outlet 13 of the flash tank 1 is connected to a water inlet 22 of the heat exchanger 2 through a pipeline; a hot gas inlet 24 of the heat exchanger 2 is additionally connected with an external high-temperature waste gas pipeline 6, a hot gas outlet 25 of the heat exchanger 2 is connected to an inlet 41 of the heater 4 through a pipeline, and a water outlet 23 of the heat exchanger 2 is connected to a water inlet 31 of the condensed water storage tank 3 through a pipeline; a water outlet 32 of the condensed water storage tank 3 is connected to an inlet 11 of the flash tank 1 through a pipeline; the secondary steam outlet 42 of the heater 4 is connected to the external condensation water outlet pipeline 8 through the surface condenser 7, and the condensed water outlet 43 of the heater 4 is connected to the external condensation water outlet pipeline 8 through a pipeline; the external condensation water outlet pipeline 8 extends from the bottommost part of the heat exchange pipe 26 through a pipeline and is communicated with the heat exchange pipe 26; a water pump 9 is arranged on a connecting pipeline of the condensed water storage tank 3 and the flash tank 1 and an external condensed water outlet pipeline 8; the paddle wheel 241 is installed at a hot gas inlet of the heat exchange tube 26, the filtering screen 251 is installed at a hot gas outlet of the heat exchange tube 26, the paddle wheel 241 is used for uniformly mixing steam and high-temperature waste gas, the steam condensation is promoted to wrap impurities in the waste gas into water flow to the bottommost part of the heat exchange tube 26, and the filtering screen 251 is used for intercepting the impurities in the residual waste gas; the periphery of the condensed water storage tank 3 is provided with a vacuum jacket 33, so that the heat loss of the condensed water in the condensed water storage tank 3 is reduced.
High-temperature condensed water (about 120 ℃) generated in the material drying production process of an enterprise is conveyed to a flash tank 1 for flash evaporation, steam generated by flash evaporation enters a heat exchanger 2, and high-temperature waste gas generated in the production process is conveyed to the heat exchanger 2 and mixed; condensed water which is flashed off enters the heat exchanger 2, the temperature of the condensed water is raised under the heat exchange of high-temperature steam and waste gas, the condensed water is used as secondary flash evaporation, the high-temperature steam is condensed due to slight temperature reduction, and impurities in the wrapped waste gas are changed into water drops to be deposited at the bottommost part of the arc-shaped heat exchange tube 26; the high-temperature steam and the waste gas are finally used as heat sources of the heater 4, namely as heat sources of the evaporator; the system is simple in process and convenient to operate, high-temperature steam and waste gas can be simultaneously utilized, equipment blockage cannot be influenced, the pipeline conveying distance is short, heat loss is small, efficient utilization of the high-temperature steam and the waste gas is achieved, and the enterprise operation cost is greatly reduced.
The described embodiments are only some, but not all embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Claims (5)
1. An improved evaporator waste heat heating system comprises a flash tank, a heat exchanger, a condensed water storage tank and a heater, and is characterized in that the heat exchanger comprises a horizontally arranged pipe body, a water inlet is formed in the lower portion of one end of the pipe body, a water outlet is formed in the lower portion of the other end of the pipe body, a hot gas inlet is formed in the top of one end of the pipe body, a hot gas outlet is formed in the top of the other end of the pipe body, an arc-shaped heat exchange pipe is arranged in the pipe body; the inlet of the flash tank is connected with an external high-temperature condensed water pipeline, a steam outlet pipeline of the flash tank is connected to a hot gas inlet of the heat exchanger, and a condensed water outlet pipeline of the flash tank is connected to a water inlet of the heat exchanger; the hot gas inlet of the heat exchanger is additionally connected with an external high-temperature waste gas pipeline, a hot gas outlet pipeline of the heat exchanger is connected to the inlet of the heater, and a water outlet pipeline of the heat exchanger is connected to the water inlet of the condensed water storage tank; a water outlet pipeline of the condensed water storage tank is connected to an inlet of the flash tank; a secondary steam outlet of the heater is connected to an external condensation water outlet pipeline through a surface condenser, and a condensed water outlet pipeline of the heater is connected to the external condensation water outlet pipeline; and the external condensation water outlet pipeline extends into the bottommost part of the heat exchange pipe through a pipeline and is communicated with the heat exchange pipe.
2. The improved evaporator waste heat heating system as recited in claim 1 wherein said heat exchange tubes are finned tubes.
3. The improved evaporator waste heat heating system as recited in claim 1, wherein a water pump is disposed on each of the connecting pipeline between the condensed water storage tank and the flash tank and the external condensed water outlet pipeline.
4. The improved evaporator waste heat heating system as recited in claim 1, wherein a paddle wheel is installed at a hot gas inlet of the heat exchange tube, and a filter screen is installed at a hot gas outlet of the heat exchange tube.
5. The improved evaporator waste heat heating system as recited in claim 1, wherein a vacuum jacket is provided around said condensed water storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921775218.9U CN211215485U (en) | 2019-10-22 | 2019-10-22 | Improved evaporator waste heat heating system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921775218.9U CN211215485U (en) | 2019-10-22 | 2019-10-22 | Improved evaporator waste heat heating system |
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| CN211215485U true CN211215485U (en) | 2020-08-11 |
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| CN201921775218.9U Active CN211215485U (en) | 2019-10-22 | 2019-10-22 | Improved evaporator waste heat heating system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112755565A (en) * | 2021-01-14 | 2021-05-07 | 成都展望能源机械有限公司 | Flash tank steam recovery device and using method thereof |
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2019
- 2019-10-22 CN CN201921775218.9U patent/CN211215485U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112755565A (en) * | 2021-01-14 | 2021-05-07 | 成都展望能源机械有限公司 | Flash tank steam recovery device and using method thereof |
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