CN220665125U - Long-chain dibasic acid economic circulating water system - Google Patents
Long-chain dibasic acid economic circulating water system Download PDFInfo
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- CN220665125U CN220665125U CN202322356370.6U CN202322356370U CN220665125U CN 220665125 U CN220665125 U CN 220665125U CN 202322356370 U CN202322356370 U CN 202322356370U CN 220665125 U CN220665125 U CN 220665125U
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- circulating water
- water
- dibasic acid
- tank
- circulating
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 207
- 239000002253 acid Substances 0.000 title claims abstract description 26
- 238000001816 cooling Methods 0.000 claims abstract description 21
- 239000010865 sewage Substances 0.000 claims abstract description 17
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 claims abstract description 12
- 239000012528 membrane Substances 0.000 claims abstract description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 239000002455 scale inhibitor Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 239000006004 Quartz sand Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000003619 algicide Substances 0.000 claims description 4
- 230000001954 sterilising effect Effects 0.000 claims description 4
- 230000001502 supplementing effect Effects 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 239000002351 wastewater Substances 0.000 abstract description 4
- 230000002860 competitive effect Effects 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 abstract description 3
- 239000000047 product Substances 0.000 description 5
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Abstract
The utility model provides a long-chain binary acid economic circulating water system which is sequentially connected with a circulating water collecting tank, a mechanical filter, a water treatment device, a circulating water tank, a circulating water pipe network and a cooling tower, wherein the cooling tower is connected to the circulating water tank, the water treatment device is directly connected with the circulating water tank, the water treatment device is also connected with the circulating water tank through a water storage tank and a cold exchange station, the circulating water collecting tank is used for collecting circulating water sewage discharged into sewage treatment, and the circulating water pipe network is used for supplying water to a long-chain binary acid production system. The utility model discards the way of discharging the circulating water waste water, adopts the reverse osmosis membrane device to reduce the hardness of water, and reduces the temperature of the refrigerator, thereby greatly reducing the water consumption of the circulating water and greatly improving the production efficiency. Therefore, compared with the traditional system, the circulating water system provided by the utility model is more water-saving and economical, reduces the production cost of long-chain dibasic acid, and makes the product more competitive.
Description
Technical Field
The utility model relates to a circulating water recycling system of long-chain dibasic acid, in particular to an economic circulating water system of long-chain dibasic acid.
Background
In a large-scale production plant for long-chain dicarboxylic acid, in the process of stably producing long-chain dicarboxylic acid, strict control on the temperature, flow and pressure of inlet water is required according to the corresponding yield so as to produce a long-chain dicarboxylic acid product with higher quality.
The circulating water system in the present stage is that tap water in an industrial pipe network is filtered, added with medicines such as sterilizing algicides, scale inhibitors and the like, and then enters a circulating water tank, and is sent into a circulating water pipeline through a water pump. In the utilization of the circulating water, the protection of water-using equipment is also considered, so that the water consumption of the circulating water is huge in the traditional process, and a large amount of water is often replaced by the circulating water to reach the water consumption standard, and the replaced water is directly discharged to a sewage treatment workshop, so that great waste is caused.
The production system in the present stage has not only requirements on the quality of the circulating water, but also higher requirements on the temperature of the circulating water, so that the temperature of the circulating water often cannot meet the production requirements in high-temperature seasons, the production of workshops is greatly influenced, the temperature of tap water in a reservoir in the high-temperature seasons is also increased, and the effect of cooling the water-supplementing circulating water is greatly reduced.
Disclosure of Invention
The utility model provides a long-chain binary acid economic circulating water system, which solves the problems that the existing circulating water system has large water consumption, high water treatment agent usage amount, high water replenishing temperature in high-temperature seasons, cooling by a cooling tower fan and the like, and the technical scheme is as follows:
the utility model provides a long-chain binary acid economical circulating water system, circulating water collecting tank, mechanical filter, water treatment facilities, circulating water pond, circulating water pipe network and the cooling tower that connects gradually, the cooling tower is connected to the circulating water pond, outside water treatment facilities and circulating water pond lug connection, water treatment facilities still is connected with the circulating water pond through water storage tank, cold exchange station, the circulating water collecting tank is used for collecting the circulating water sewage of discharging into sewage treatment, the circulating water pipe network is used for supplying water to long-chain binary acid production system.
A variable frequency pump is arranged between the circulating water collecting tank and the mechanical filter.
The mechanical filter adopts one or a combination of a plurality of quartz sand filters, activated carbon filters or medium filters.
The water treatment device adopts a reverse osmosis treatment device.
The reverse osmosis treatment device is provided with a reverse osmosis membrane.
The circulating water collecting tank is provided with a liquid level meter and an automatic valve, and the liquid level meter controls the water inflow of the circulating water collecting tank through the automatic valve.
The frequency conversion pump is used for automatically adjusting the frequency according to the water supplementing quantity of the circulating water tank.
The water treatment device conveys the treated product water to a circulating water tank, and high-concentration water discharged in the treatment process enters a sewage treatment workshop.
The circulating water pool is added with a water treatment agent, and the water treatment agent comprises, but is not limited to, a sterilizing algicide and a scale inhibitor.
The water recovered by the circulating water pipe network enters a cooling tower for cooling, and enters a circulating water tank after being cooled, so that the circulating water pipe network can be recycled.
The long-chain diacid economic circulating water system discards the mode of discharging the circulating water wastewater, adopts a reverse osmosis membrane device to reduce the hardness of water, and adopts a cooling mode of a refrigerator, thereby greatly reducing the water consumption of the circulating water and greatly improving the production efficiency. Therefore, compared with the traditional system, the circulating water system provided by the utility model is more water-saving and economical, reduces the production cost of long-chain dibasic acid, and makes the product more competitive.
Drawings
FIG. 1 is a schematic diagram of the long chain dibasic acid economic type circulating water system;
FIG. 2 is a schematic diagram of the workflow of the long chain dibasic acid economic circulating water system.
Detailed Description
As shown in fig. 1, the long-chain dibasic acid economic circulating water system comprises a circulating water collecting tank 1, a mechanical filter 2, a water treatment device 3, a circulating water tank 4, a circulating water pipe network 7 and a cooling tower 8 which are sequentially connected, wherein the cooling tower 8 is connected to the circulating water tank 4.
A variable frequency pump 13 is arranged between the circulating water collecting tank 1 and the mechanical filter 2,
the water treatment device 3 is directly connected with the circulating water tank 4 except that the water treatment device 3 is directly connected with the circulating water tank 4, and the water treatment device 3 is also connected with the circulating water tank 4 through the water storage tank 5 and the cold exchange station 6.
The mechanical filter 2 may be in the form of one or a combination of several of a quartz sand filter, an activated carbon filter or a media filter.
The water treatment device 3 is a reverse osmosis treatment device, and the reverse osmosis treatment device mainly comprises a reverse osmosis membrane and corresponding matched components.
When the utility model is used, as shown in fig. 2, the method comprises the following steps:
s1: the circulating water and sewage originally discharged into sewage treatment is collected in a circulating water collecting tank 1, the circulating water and sewage is collected, the circulating water collecting tank 1 is provided with a liquid level meter 11 and an automatic valve 12, and the automatic valve 12 is arranged on a water inlet pipe for the circulating water and sewage to enter the circulating water collecting tank 1.
When the liquid level meter 11 detects that the water level of the circulating water collecting tank 1 reaches a set first height L1, the automatic valve 12 is controlled to be closed, and when the liquid level meter 11 detects that the water level of the circulating water collecting tank 1 reaches a set second height L2, the automatic valve 12 is controlled to be opened, wherein the position of the first height L1 is higher than the second height L2, and the liquid level meter 11 controls the water inflow of the circulating water collecting tank 1 through the automatic valve 12;
s2: the collected circulating water sewage enters the mechanical filter 2 through the variable frequency pump 13 to be subjected to coarse filtration pretreatment, then is treated by the water treatment device 3, the treated water directly enters the circulating water tank 4 to consume and supplement water except for a high-temperature season through the cold exchange station 6, and the variable frequency pump 13 can automatically adjust the frequency according to the water supplementing amount of the circulating water tank 4.
The circulating water sewage is pretreated by a mechanical filter 2, and in an embodiment, the mechanical filter 2 adopts a combination of a quartz sand filter and an activated carbon filter to treat mechanical impurities, colloid, microorganism, organic matters and the like in the water so as to reach the quality index of the inlet water allowed by reverse osmosis.
The water after being coarsely filtered by the mechanical filter 2 is treated by the water treatment device 3, and when the water is subjected to reverse osmosis treatment by the water treatment device 3, the ion concentration of the reverse osmosis concentrated water end reaches 4 times of that of water inlet, at the moment, the deposition of the insoluble salt concentration in the water is precipitated, so that the scaling of the film is caused, and the scale inhibitor is added into the water, so that the formation and growth of insoluble salt crystals can be effectively blocked, and the purpose of preventing the scaling is achieved. The sewage is discharged by the water treatment device 3, the high-concentration water mainly comprises impurities and salt solutes, and the output of the high-concentration water is about 30% of that of the inflow water. The treated product water enters a circulating water tank 4, and the high-concentration water discharged in the treatment process enters a sewage treatment workshop.
Wherein, during high temperature season, the circulating water that handles first water storage tank 5, then gets into circulating water pond 4 after cooling through cold exchange station 6, plays the cooling effect. The cold exchange station 6 is a cold water system cooled by a refrigerator, and the temperature of the cold exchange station is adjustable.
S3: according to the water quality detection result, the water treatment agent is added into the circulating water pool 4 and then is sent into the circulating water pipe network 7 through a water pump.
The water treatment agent comprises, but is not limited to, a sterilizing algicide, a scale inhibitor and the like, and the scale inhibitor is added into water to ensure the use effect of the reverse osmosis membrane and prolong the use time. According to the detection result, the hardness of the water is below 500 mg/L.
The circulating water tank 4 should ensure a certain water level and temperature; if the temperature is higher than 25 ℃, the running number of the cooling towers is increased, and a cold exchange station is started for water supplementing; if the water level is lower than 3 meters, water should be supplemented in time.
S4: the water recovered by the circulating water pipe network 7 enters the cooling tower 8 for cooling, and enters the circulating water tank 4 after cooling, so that the circulating water is recycled.
Compared with the existing circulating water system, the utility model has the beneficial effects that:
1) The comprehensive utilization rate is high, the problem of circulating water and wastewater discharge is solved, and the waste of water resources can be greatly reduced;
2) Because the hardness of the circulating water is reduced, the use amount of the scale inhibitor is also greatly reduced;
3) The high-temperature season can effectively reduce the temperature of water replenishing and improve the utilization rate of circulating water.
In summary, the long-chain diacid economic circulating water system provided by the utility model discards the circulating water waste water discharge mode, adopts the reverse osmosis membrane device to reduce the hardness of water, and greatly reduces the water consumption of the circulating water in a cooling mode of a refrigerator, so that the production efficiency is greatly improved. Therefore, compared with the traditional system, the circulating water system provided by the utility model is more water-saving and economical, reduces the production cost of long-chain dibasic acid, and makes the product more competitive.
Claims (10)
1. An economic circulating water system of long-chain dibasic acid, which is characterized in that: the circulating water treatment device is connected with the circulating water pool through a water storage tank and a cold exchange station, the circulating water collection pool is used for collecting circulating water sewage discharged into sewage treatment, and the circulating water pipe network is used for supplying water to the long-chain binary acid production system.
2. The long chain dibasic acid economic circulating water system according to claim 1, wherein: a variable frequency pump is arranged between the circulating water collecting tank and the mechanical filter.
3. The long chain dibasic acid economic circulating water system according to claim 1, wherein: the mechanical filter adopts one or a combination of a plurality of quartz sand filters, activated carbon filters or medium filters.
4. The long chain dibasic acid economic circulating water system according to claim 1, wherein: the water treatment device adopts a reverse osmosis treatment device.
5. The long chain dibasic acid economic circulating water system according to claim 4, wherein: the reverse osmosis treatment device is provided with a reverse osmosis membrane.
6. The long chain dibasic acid economic circulating water system according to claim 1, wherein: the circulating water collecting tank is provided with a liquid level meter and an automatic valve, and the liquid level meter controls the water inflow of the circulating water collecting tank through the automatic valve.
7. The long chain dibasic acid economic circulating water system according to claim 2, wherein: the frequency conversion pump is used for automatically adjusting the frequency according to the water supplementing quantity of the circulating water tank.
8. The long chain dibasic acid economic circulating water system according to claim 1, wherein: the water treatment device conveys the treated product water to a circulating water tank, and high-concentration water discharged in the treatment process enters a sewage treatment workshop.
9. The long chain dibasic acid economic circulating water system according to claim 1, wherein: the circulating water pool is added with a water treatment agent, and the water treatment agent comprises, but is not limited to, a sterilizing algicide and a scale inhibitor.
10. The long chain dibasic acid economic circulating water system according to claim 1, wherein: the water recovered by the circulating water pipe network enters a cooling tower for cooling, and enters a circulating water tank after being cooled, so that the circulating water pipe network can be recycled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322356370.6U CN220665125U (en) | 2023-08-31 | 2023-08-31 | Long-chain dibasic acid economic circulating water system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322356370.6U CN220665125U (en) | 2023-08-31 | 2023-08-31 | Long-chain dibasic acid economic circulating water system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220665125U true CN220665125U (en) | 2024-03-26 |
Family
ID=90336977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322356370.6U Active CN220665125U (en) | 2023-08-31 | 2023-08-31 | Long-chain dibasic acid economic circulating water system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220665125U (en) |
-
2023
- 2023-08-31 CN CN202322356370.6U patent/CN220665125U/en active Active
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