CN220564348U - Hot waste water economizer system - Google Patents
Hot waste water economizer system Download PDFInfo
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- CN220564348U CN220564348U CN202321888836.0U CN202321888836U CN220564348U CN 220564348 U CN220564348 U CN 220564348U CN 202321888836 U CN202321888836 U CN 202321888836U CN 220564348 U CN220564348 U CN 220564348U
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- distilled water
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- water
- flash
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- 239000002351 wastewater Substances 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 109
- 239000012153 distilled water Substances 0.000 claims abstract description 76
- 239000010865 sewage Substances 0.000 claims abstract description 47
- 238000001704 evaporation Methods 0.000 claims abstract description 19
- 230000008020 evaporation Effects 0.000 claims abstract description 19
- 239000007789 gas Substances 0.000 claims description 20
- 239000002918 waste heat Substances 0.000 claims description 17
- 238000007599 discharging Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 10
- 239000012808 vapor phase Substances 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 238000009833 condensation Methods 0.000 claims 1
- 230000005494 condensation Effects 0.000 claims 1
- 238000000746 purification Methods 0.000 claims 1
- 239000002699 waste material Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 239000013505 freshwater Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000010849 combustible waste Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The utility model discloses a hot waste water energy-saving system, which is characterized in that: the system comprises a sewage flash evaporation subsystem and a hot water circulation subsystem which are communicated through a pipeline; the sewage flash subsystem includes a flash tank for producing steam; the hot water circulation subsystem comprises a hydraulic ejector and a distilled water tank connected with the hydraulic ejector; the heat exchanger comprises a hot side end for steam to enter and a cold side end for heat exchange, wherein the flash tank, the hot side end and the hydraulic ejector are sequentially communicated through pipelines, so that steam produced by the flash tank is condensed into distilled water through the hot side end, and distilled water in the hot side end is pumped into the distilled water tank through the hydraulic ejector. According to the utility model, heat is extracted from the waste hot water through flash evaporation and accurate pressure regulation, so that high-quality distilled water and pure steam with controllable temperature are prepared, the water-saving effect is obvious, and the equipment is simple and reliable.
Description
Technical Field
The utility model relates to the technical field of energy utilization, in particular to a thermal waste water energy-saving system.
Background
Along with the continuous and stable development of the economy in China, the energy and environmental problems are increasingly serious. In the aspect of energy, besides the clean energy such as wind energy, solar energy and the like is greatly developed, on the other hand, the energy-saving technology such as waste heat recovery and reutilization is also developed. The waste heat is widely applied to industrial equipment such as power station boilers and the like, and can be classified into high-temperature flue gas waste heat, sewage waste heat, cooling medium waste heat, high-temperature products, slag waste heat, chemical reaction waste heat, combustible waste gas waste liquid, waste material waste heat and the like according to the sources thereof, wherein the total amount of the high-temperature hot water waste heat occupies a considerable proportion in the total waste heat resources, and the recycling potential is huge. The development of wastewater reuse and sea water desalination technology is an effective way of open source throttling of fresh water. In the prior art, in order to save resources, a flash tank is often utilized to flash-steam the wastewater to open source and throttle the fresh water, but a large amount of heat energy is generated after the flash tank is used for flash evaporation in daily life, and is generally directly discharged to the outside without recycling, so that the energy loss is extremely large.
Therefore, there is a need to provide a new solution to overcome the above-mentioned drawbacks.
Disclosure of Invention
The utility model aims to provide a thermal waste water energy-saving system which can effectively solve the technical problems.
In order to achieve the purpose of the utility model, the following technical scheme is adopted:
a hot waste water energy-saving system is characterized in that: the system comprises a sewage flash evaporation subsystem and a hot water circulation subsystem which are communicated through a pipeline;
the sewage flash subsystem includes a flash tank for producing steam;
the hot water circulation subsystem comprises a hydraulic ejector and a distilled water tank connected with the hydraulic ejector;
the heat exchanger comprises a hot side end for steam to enter and a cold side end for heat exchange, wherein the flash tank, the hot side end and the hydraulic ejector are sequentially communicated through pipelines, so that steam produced by the flash tank is condensed into distilled water through the hot side end, and distilled water in the hot side end is pumped into the distilled water tank through the hydraulic ejector.
Further, the sewage flash evaporation subsystem further comprises a high-temperature sewage pump for discharging sewage and a low-temperature sewage pump for discharging sewage, and the high-temperature sewage pump and the low-temperature sewage pump are communicated with the flash evaporation tank through pipelines.
Further, a vapor phase outlet for discharging steam is arranged on the flash tank, and the vapor phase outlet is communicated with the hot side end through a pipeline.
Further, the hydraulic ejector is provided with an injection port connected with the hot side end, and the hot side end is communicated with the injection port through a pipeline.
Further, one end of the distilled water tank is provided with a distilled water discharge port.
Further, the hydraulic ejector is also provided with a power water inlet, and the power water inlet is communicated with the distilled water discharge port through a pipeline.
Further, a distilled water pump is arranged between the distilled water tank and the distilled water discharge port.
Further, the hot waste water energy-saving system further comprises a waste heat utilization subsystem connected with the hot water circulation subsystem, wherein the waste heat utilization subsystem comprises a conveying pipeline, the cold side end is communicated with the conveying pipeline, and a material conveying pump is arranged on the conveying pipeline.
Further, a non-condensable gas discharge port is also arranged on the distilled water tank.
Further, a pressure regulating valve is arranged between the non-condensable gas discharge port and the distilled water tank.
Compared with the prior art, the utility model has the following beneficial effects: according to the utility model, heat is extracted from waste hot water through flash evaporation and pressure accurate regulation, so that pure steam with adjustable output temperature is prepared, the pure steam is used for heating industrial production materials, the steam is condensed into high-quality distilled water, and the high-quality distilled water is output after being collected, can be used for supplementing the fresh water requirement of industrial production, and has obvious water-saving effect; the hydraulic ejector can simultaneously extract steam condensate and non-condensate, has flash pressure regulation and drainage functions, and has simple and reliable equipment.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model.
Fig. 1 is a schematic structural view of the present utility model.
FIG. 2 is a block diagram of the hot water circulation subsystem of the present utility model.
FIG. 3 is a block diagram of a flash heating system of the present utility model.
Fig. 4 is a block diagram of a sewage heat exchange system according to the present utility model.
In the figure: 1. flash tank, 2, hydraulic ejector, 3, distilled water tank, 4, heat exchanger, 5, pressure regulating valve, 6, high temperature sewage pump, 7, low temperature sewage pump, 8, material transfer pump, 9, distilled water pump, 10, distilled water discharge port, 11, transfer piping, 12, non-condensable gas discharge port, 101, vapor phase outlet, 201, injection port, 202, power water inlet, 401, hot side, 402, cold side A, sewage flash subsystem, B, hot water circulation subsystem, C, waste heat utilization subsystem.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the following description will be made in detail with reference to the technical solutions in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments.
In the description of the present utility model, it should be understood that the terms "center," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present utility model. When an element is referred to as being "fixed" to another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
As shown in fig. 1 to 4, a hot wastewater energy saving system comprises a sewage flash evaporation subsystem a and a hot water circulation subsystem B which are communicated through a pipeline; the sewage flash evaporation subsystem comprises a flash tank 1 for preparing steam; the hot water circulation subsystem comprises a hydraulic ejector 2 and a distilled water tank 3 connected with the hydraulic ejector 2; wherein, be equipped with heat exchanger 4 between hydraulic ejector 2 and flash tank 1, heat exchanger 4 includes the hot side end 401 that is used for steam to get into and is used for the cold side end 402 of heat transfer, flash tank 1 and hydraulic ejector 2 pass through hot side end 401 intercommunication to make the hot steam of flash tank 1 output pass through the heat exchange through hot side end 401. Most of the heat energy of the hot steam is replaced by the cold side end 402, so that the steam replaced with heat energy is condensed into distilled water, and the residual hot steam and distilled water in the hot side end 401 are drawn into the distilled water tank 3 through the hydro-ejector 2.
As shown in fig. 1 and 3, the sewage flash evaporation subsystem a further includes a high temperature sewage pump 6 for discharging sewage and a low temperature sewage pump 7 for discharging sewage, the high temperature sewage pump 6 and the low temperature sewage pump 7 are both communicated with the flash evaporation tank 1 through pipes, hot sewage enters the flash evaporation tank 1 through the high temperature sewage pump 6, the flash evaporation tank 1 separates the hot sewage into steam and low temperature sewage, and the low temperature sewage is discharged from the low temperature sewage pump. The flash tank 1 is provided with a vapor phase outlet 101 for discharging vapor, and the vapor phase outlet 101 is communicated with a hot side end 401 through a pipeline, so that the vapor produced by the flash tank 1 flows through the hot side end 401 of the heat exchanger 4 through the vapor phase outlet 101, and part of the vapor exchanges heat energy to a cold side end 402 at the hot side end 401, thereby cooling and generating distilled water.
As shown in fig. 1, the flash evaporator 1 is connected with a cold side inlet 202 of the hydraulic ejector 2 through a pipeline, distilled water and residual hot steam generated through a hot side end 401 are pumped into the distilled water tank 3 by the hydraulic ejector 2, the hot steam generates heat transfer when contacting with distilled water, so that the hot steam is changed into distilled water and noncondensable gas, a noncondensable gas discharge port 12 is arranged on the distilled water tank 3 for discharging the noncondensable gas, a pressure regulating valve 5 is arranged on the noncondensable gas discharge port 12, the hydraulic ejector 2 pumps the noncondensable gas which cannot be changed into distilled water into the distilled water tank 3, the noncondensable gas discharge port 12 can be controlled by the pressure regulating valve 5 to pump the noncondensable gas, one end of the distilled water tank 3 is connected with a distilled water discharge port 10 through a pipeline, distilled water pumped from the noncondensable gas enters the distilled water discharge port 10 through the pipeline, and a distilled water pump 9 for transporting distilled water is arranged between the distilled water tank 3 and the distilled water discharge port 10, so that the pressure in the pipeline is convenient to maintain.
As shown in fig. 1, a power water inlet 201 is further arranged on the hydraulic ejector 2, the power water inlet 201 is communicated with the distilled water discharge port 10 through a pipeline, so that the hydraulic ejector 2 can extract distilled water in the distilled water discharge port 10 through the power water inlet 202, after the distilled water enters the distilled water tank 3 again, the non-condensable gas in the distilled water can be discharged from the non-condensable gas discharge port 12, and the distilled water can circulate in the distilled water tank 3 and the distilled water discharge port 10 through the distilled water, so that the non-condensable gas entrained in the distilled water can be discharged, and high-quality distilled water is produced; meanwhile, the hydraulic ejector 2 and the water circulation are matched to automatically adjust the pressure of the flash evaporator 1 and regulate the temperature of the flash tank 1 for outputting steam.
As shown in fig. 1, the utility model further comprises a waste heat utilization subsystem C connected with the hot water circulation subsystem B, wherein the waste heat utilization subsystem C comprises a conveying pipeline 11, a cold side end 402 on the heat exchanger 4 is communicated with the conveying pipeline 11, and a material conveying pump 8 is arranged on the conveying pipeline 11, and the material conveying pump 8 is used for conveying cold materials into the conveying pipeline 11, so that when the cold materials pass through the cold side end 402, the cold materials can be heated by heat energy displaced from the hot side end 401.
Working principle: hot sewage enters a sewage flash evaporation subsystem A through a high-temperature sewage pump 6, the hot sewage enters a flash evaporation tank 1 to be flashed into steam and low-temperature sewage, the low-temperature sewage is discharged out of the flash evaporation tank 1 through a low-temperature sewage pump 7, and the steam enters a hot water circulation subsystem B through a pipeline; the steam is subjected to heat replacement in the hot water circulation subsystem B through the hot side end 401 of the heat exchanger 4, the heat is replaced into the cold side end 402, the heat of the steam is absorbed into distilled water, the cold side end 402 is used for heating the cold material through the absorbed heat, the distilled water is absorbed by the hydraulic ejector 2 and pumped into the distilled water tank 3, noncondensable gas is discharged from the noncondensable gas discharge port 12 through the opening pressure regulating valve 5 and is injected into the distilled water discharge port 10 through a pipeline, the distilled water in the distilled water discharge port 10 is sucked again through the power water inlet 202 by the hydraulic ejector 2, and the distilled water circularly flows in the distilled water tank 3 and the distilled water discharge port 10 to discharge residual noncondensable gas until high-quality distilled water is produced.
Standard parts used in the utility model can be purchased from the market, special-shaped parts can be customized according to the description of the specification and the drawings, the specific connection modes of all parts adopt conventional means such as mature bolts, rivets and welding in the prior art, the machinery, the parts and the equipment adopt conventional modes in the prior art, and the circuit connection adopts conventional connection modes in the prior art, so that details are not described in detail in the specification, and the utility model belongs to the prior art known to the person skilled in the art.
It will be understood that modifications and variations will be apparent to those skilled in the art from the foregoing description, and it is intended that all such modifications and variations be included within the scope of the following claims.
Claims (10)
1. A hot waste water energy-saving system is characterized in that: comprises a sewage flash evaporation subsystem (A) and a hot water circulation subsystem (B) which are communicated through pipelines;
the sewage flash subsystem comprises a flash tank (1) for preparing steam;
the hot water circulation subsystem comprises a hydraulic ejector (2) and a distilled water tank (3) connected with the hydraulic ejector (2);
the utility model provides a water purification device, including flash tank (1), water ejector (2), flash tank (1) are connected in proper order through pipeline, so that the steam of flash tank (1) output is distilled water through hot side (401) condensation, just distilled water in hot side (401) passes through in water ejector (2) suction distilled water tank (3), heat exchanger (4) including hot side (401) and cold side (402) that are used for absorbing heat energy between water ejector (2) and flash tank (1), heat side (401) and water ejector (2) are connected in proper order.
2. A thermal waste water energy saving system as claimed in claim 1, wherein: the sewage flash evaporation subsystem (A) further comprises a high-temperature sewage pump (6) for discharging sewage and a low-temperature sewage pump (7) for discharging sewage, and the high-temperature sewage pump (6) and the low-temperature sewage pump (7) are communicated with the flash evaporation tank (1) through pipelines.
3. A thermal waste water energy saving system as claimed in claim 2, wherein: the flash tank (1) is provided with a vapor phase outlet (101) for discharging steam, and the vapor phase outlet (101) is communicated with a hot side end (401) through a pipeline.
4. A thermal waste water energy saving system as claimed in claim 3, wherein: the hydraulic ejector (2) is provided with an injection port (201) connected with a hot side end (401), and the hot side end (401) is communicated with the injection port (201) through a pipeline.
5. A thermal waste water energy saving system as claimed in claim 4, wherein: one end of the distilled water tank (3) is provided with a distilled water discharge port (10).
6. A thermal waste water energy saving system as defined in claim 5, wherein: the hydraulic ejector (2) is also provided with a power water inlet (202), and the power water inlet (202) is communicated with the distilled water discharge port (10) through a pipeline.
7. A thermal waste water energy saving system as defined in claim 6, wherein: a distilled water pump (9) is arranged between the distilled water tank (3) and the distilled water discharge port (10).
8. A thermal waste water energy saving system as claimed in claim 1, wherein: the hot waste water energy-saving system further comprises a waste heat utilization subsystem (C) connected with the hot water circulation subsystem (B), wherein the waste heat utilization subsystem (C) comprises a conveying pipeline (11), the cold side end (402) is communicated with the conveying pipeline (11), and a material conveying pump (8) is arranged on the conveying pipeline (11).
9. A thermal waste water energy saving system as claimed in claim 1, wherein: the distilled water tank (3) is provided with a noncondensable gas discharge port (12).
10. A thermal waste water energy saving system as claimed in claim 9, wherein: a pressure regulating valve (5) is arranged between the non-condensable gas discharge port (12) and the distilled water tank (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321888836.0U CN220564348U (en) | 2023-07-18 | 2023-07-18 | Hot waste water economizer system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321888836.0U CN220564348U (en) | 2023-07-18 | 2023-07-18 | Hot waste water economizer system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220564348U true CN220564348U (en) | 2024-03-08 |
Family
ID=90090600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321888836.0U Active CN220564348U (en) | 2023-07-18 | 2023-07-18 | Hot waste water economizer system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220564348U (en) |
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2023
- 2023-07-18 CN CN202321888836.0U patent/CN220564348U/en active Active
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