CN212246513U - Sewage heat energy recycling device - Google Patents
Sewage heat energy recycling device Download PDFInfo
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- CN212246513U CN212246513U CN201922371193.2U CN201922371193U CN212246513U CN 212246513 U CN212246513 U CN 212246513U CN 201922371193 U CN201922371193 U CN 201922371193U CN 212246513 U CN212246513 U CN 212246513U
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Abstract
The utility model relates to a sewage heat energy recycling device, which comprises a sewage collecting tank, a sewage circulating pump, a plate heat exchanger, a sewage adjusting tank, a reverse osmosis device, a soft water treatment device, a cooling tower and a cooling water circulating pump; a water inlet at the hot water side of the plate heat exchanger is connected with a sewage circulating pump, an outlet of the sewage circulating pump is provided with an adjusting valve, and an inlet of the sewage circulating pump is connected to a sewage collecting pool; a water outlet at the hot water side of the plate heat exchanger is connected with a sewage adjusting tank, and an adjusting valve is arranged on a pipeline; the cold water side water inlet of the plate heat exchanger is connected with two pipelines, one pipeline is connected with production water, the other pipeline is connected with a cooling water circulating pump, and an outlet of the cooling water circulating pump is provided with an adjusting valve; the inlet of the cooling water circulating pump is connected with a cooling tower; the cooling tower is connected with a production water pipe network, and a regulating valve is arranged on a pipeline; one pipeline on the cold water side of the plate heat exchanger is connected to the cooling tower, and the other pipeline is connected with the reverse osmosis device; the outlet of the reverse osmosis device is connected to the soft water treatment device.
Description
Technical Field
The utility model relates to a sewage heat recovery utilizes device.
Background
At present, in the viscose industry, production sewage needs to be treated by a sewage treatment system and then discharged, and in summer, the production sewage needs to be cooled and then enters the sewage treatment system. The conventional treatment mode is that sewage passes through the direct heat transfer of cooling tower, and the drawback is that the heat energy in the sewage does not utilize, and the waste gas in the cooling tower is easily diffused to the atmosphere simultaneously.
Disclosure of Invention
The utility model aims at solving the problems in the prior art and providing a technical scheme with heat energy recovery in winter and sewage cooling in summer.
The utility model discloses the concrete technical scheme of device as follows: the sewage heat energy recycling device comprises a sewage collecting tank, a sewage circulating pump, a plate heat exchanger, a sewage adjusting tank, a reverse osmosis device, a soft water treatment device, a cooling tower and a cooling water circulating pump; a water inlet at the hot water side of the plate heat exchanger is connected with a sewage circulating pump, an outlet of the sewage circulating pump is provided with an adjusting valve, and an inlet of the sewage circulating pump is connected to a sewage collecting pool; a water outlet at the hot water side of the plate heat exchanger is connected with a sewage adjusting tank, and an adjusting valve is arranged on a pipeline; the cold water side water inlet of the plate heat exchanger is connected with two pipelines, one pipeline is connected with a production water pipe network, the pipeline is provided with an adjusting valve, the other pipeline is connected with a cooling water circulating pump, and the outlet of the cooling water circulating pump is provided with the adjusting valve; the inlet of the cooling water circulating pump is connected with a cooling tower; the cooling tower is connected with a production water pipe network, and a regulating valve is arranged on a pipeline; the cold water side water outlet of the plate heat exchanger is connected with two pipelines, one pipeline is connected to the cooling tower, an adjusting valve is arranged on the pipeline, the other pipeline is connected with the reverse osmosis device, and the adjusting valve is arranged on the pipeline; the outlet of the reverse osmosis device is connected to the soft water treatment device.
The utility model discloses when the device moves, winter, the normal atmospheric temperature production water that comes by the pipe network is as reverse osmosis unit's raw water behind plate heat exchanger and the sewage heat transfer, and the raw water temperature improves behind the heat transfer, can improve reverse osmosis unit's system water rate. The water produced by the reverse osmosis device is sent to a soft water treatment device to produce soft water. The soft water temperature is simultaneously increased, and the energy consumption of the process workshop for heating the soft water can be reduced. In summer, the cold water side regulating valve of the plate heat exchanger is switched into a summer mode, normal-temperature production water from a pipe network is cooled by the cooling tower and then exchanges heat with sewage through the plate heat exchanger, the sewage is cooled, and the requirement of the sewage treatment system on the sewage temperature is met. The produced water is cooled and recycled in summer and does not enter a reverse osmosis device and a soft water treatment device any more.
Drawings
Fig. 1 is a schematic diagram of the present invention.
Comprises a sewage collecting tank, a sewage circulating pump, a plate heat exchanger, a sewage adjusting tank, a reverse osmosis device, a soft water treatment device, a cooling tower, a cooling water circulating pump and 7 regulating valves.
The specific implementation mode is as follows:
the technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.
Referring to fig. 1, in winter, the valve 4, the valve 5 and the valve 6 are closed, the valve 1, the valve 2, the valve 3 and the valve 7 are opened, the produced water from the pipe network exchanges heat with the sewage through the plate heat exchanger, the water after heat exchange enters the reverse osmosis device through the valve 3, and the water produced by the reverse osmosis device is sent to the soft water treatment device to produce soft water; meanwhile, sewage collected by the sewage collecting tank enters the plate heat exchanger through the sewage circulating pump to exchange heat with production water, and then is discharged into the sewage adjusting tank. In summer, the valve 3 and the valve 7 are closed, the valve 1, the valve 2, the valve 4, the valve 5 and the valve 6 are opened, the produced water from the pipe network enters the cooling tower for cooling, then enters the plate heat exchanger for heat exchange with the sewage through the cooling water circulating pump, returns to the cooling tower for cooling after heat exchange, and is recycled; meanwhile, sewage collected by the sewage collecting tank enters the plate heat exchanger through the sewage circulating pump to exchange heat with production water, and then is discharged into the sewage adjusting tank.
In this embodiment: in winter: the calculated temperature of the sewage is 53 ℃ at 120t/h, and the temperature after heat exchange is 21.33 ℃; the reverse osmosis raw water is 160t/h, the temperature is 10 ℃ before heat exchange, and the temperature is 33.75 ℃ after heat exchange. Summer: 120t/h of sewage, the calculated temperature is 63 ℃, and the temperature after heat exchange is 43 ℃. The material of the plate heat exchanger is 254 SMO.
Claims (2)
1. A sewage heat energy recycling device comprises a sewage collecting tank, a sewage circulating pump, a plate heat exchanger, a sewage adjusting tank, a reverse osmosis device, a soft water treatment device, a cooling tower and a cooling water circulating pump; the method is characterized in that: a water inlet at the hot water side of the plate heat exchanger is connected with a sewage circulating pump, an outlet of the sewage circulating pump is provided with an adjusting valve, and an inlet of the sewage circulating pump is connected to a sewage collecting pool; a water outlet at the hot water side of the plate heat exchanger is connected with a sewage adjusting tank, and an adjusting valve is arranged on a pipeline; the cold water side water inlet of the plate heat exchanger is connected with two pipelines, one pipeline is connected with a production water pipe network, the pipeline is provided with an adjusting valve, the other pipeline is connected with a cooling water circulating pump, and the outlet of the cooling water circulating pump is provided with the adjusting valve; the inlet of the cooling water circulating pump is connected with a cooling tower; the cooling tower is connected with a production water pipe network, and a regulating valve is arranged on a pipeline; the cold water side water outlet of the plate heat exchanger is connected with two pipelines, one pipeline is connected to the cooling tower, an adjusting valve is arranged on the pipeline, the other pipeline is connected with the reverse osmosis device, and the adjusting valve is arranged on the pipeline; the outlet of the reverse osmosis device is connected to the soft water treatment device.
2. The sewage heat energy recycling device according to claim 1, wherein the cold water side of the plate heat exchanger is provided with a regulating valve to realize the switching between winter and summer systems.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922371193.2U CN212246513U (en) | 2019-12-25 | 2019-12-25 | Sewage heat energy recycling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922371193.2U CN212246513U (en) | 2019-12-25 | 2019-12-25 | Sewage heat energy recycling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212246513U true CN212246513U (en) | 2020-12-29 |
Family
ID=73972735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922371193.2U Active CN212246513U (en) | 2019-12-25 | 2019-12-25 | Sewage heat energy recycling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212246513U (en) |
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2019
- 2019-12-25 CN CN201922371193.2U patent/CN212246513U/en active Active
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