Circulating water drainage storage and transportation system

Abstract

The utility model discloses a circulating water drainage storage and transportation system. The system comprises a bypass filter group water outlet pipe, a liquid level meter is arranged in the sewage buffer tank; the main outer sewage discharge water pipe is provided with a sewage booster pump and a main stop valve; a circulating pump is mounted on the return pipe; the analysis cabin is internally provided with an instrument for monitoring the water quality of the circulating sewage and is interlocked with the liquid level meter, the sewage booster pump, the main stop valve and the circulating pump; the water inlet end of the low-temperature drain pipe is connected with the bottom of the sewage buffer tank; the circulating sewage filtered by the side filter group needs to be subjected to component detection through the analysis cabin before being discharged, when various indexes such as PH value, phosphorus, ammonia nitrogen, COD and the like exceed the standard, the chain sewage booster pump and the main stop valve are closed, the circulating pump is started to pump the circulating sewage in the sewage buffer tank into the circulating water pool, and the circulating water in the sewage buffer tank is discharged into the circulating water pool. Therefore, the automatic drainage of the circulating sewage is realized, the sewage regeneration is realized, and the water resource is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage storage and transportation, in particular to a circulating water drainage storage and transportation system. Background Art

[0002] At present, the circulating water system in the low-temperature tank area of ​​the factory is equipped with 1 circulating water pool (1000m³), 2 circulating water cooling towers (processing capacity 1800m³ / h), 3 circulating water pumps (2 in use and 1 in reserve), and the circulating water circulation volume is about 1700m³ / h. In order to ensure that the ion concentration indicators of the existing circulating water system are normal and the circulating water concentration multiples are within a controllable range, the circulating water system needs to be drained regularly, with an annual drainage volume of about 4000~5000m³ / a. At present, the circulating water drainage sewage is directly discharged into the clean sewage system. Due to the imbalance of the pH value of the sewage, and the instability of indicators such as phosphorus, ammonia nitrogen, and nitric oxide, when a certain indicator fluctuates, direct discharge will have a certain impact on the surrounding water quality. Therefore, we have improved the circulating water drainage storage and transportation system in the factory to meet the usage needs. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a circulating water drainage storage and transportation system with a chain control system for real-time monitoring and regulation of circulating water to avoid affecting the surrounding water quality.

[0004] The technical problem to be solved by the utility model is achieved through the following technical solutions: a circulating water drainage storage and transportation system, the system comprising:

[0005] A water outlet pipe of the bypass filter group, whose water inlet end is connected to the water outlet end of the bypass filter group, and is used to supply filtered circulating sewage;

[0006] A sewage buffer tank, wherein the water outlet end of the water outlet pipe of the bypass filter group is connected to the water inlet end of the sewage buffer tank, and a liquid level meter is arranged in the sewage buffer tank;

[0007] The main external sewage pipe has its water inlet connected to the sewage buffer tank to discharge the circulating sewage in the sewage buffer tank. A sewage booster pump and a main shut-off valve are arranged on the main external sewage pipe in sequence according to the water flow direction;

[0008] The return pipe has its water inlet connected to the bottom of the sewage buffer tank and its water outlet connected to the circulating water pool that supplies water to the bypass filter. A circulating pump is installed on it to flow the circulating sewage in the sewage buffer tank back to the front of the bypass filter group.

[0009] An analysis room with built-in instruments for monitoring the water quality of circulating sewage, which is interlocked with the liquid level meter, sewage booster pump, main shut-off valve and circulating pump;

[0010] The low-temperature drainage pipe has its water inlet end connected to the bottom of the sewage buffer tank.

[0011] The technical problem to be solved by the utility model can also be achieved by the following technical solutions. In the above-mentioned circulating water drainage storage and transportation system, during the analysis of the pH value, phosphorus, ammonia nitrogen, COD and other indicators of the circulating sewage in the analysis hut, when the circulating sewage meets the standard and the liquid level gauge detects that the liquid level in the sewage buffer tank is greater than 700mm, the sewage booster pump and the main shut-off valve are opened normally, and after the main shut-off valve is opened, the sewage booster pump is opened after a delay of 5s; when the detection does not meet the standard or the liquid level gauge detects that the liquid level is lower than 300mm, the main shut-off valve and the sewage booster pump are closed, and after the sewage booster pump is closed, the main shut-off valve is closed after a delay of 10s.

[0012] The technical problem to be solved by the utility model can also be achieved through the following technical solutions: in the above-mentioned circulating water drainage storage and transportation system, a bypass filter group outlet pipe valve I is provided on the bypass filter group outlet pipe.

[0013] The technical problem to be solved by the utility model can also be achieved by the following technical solutions. In the above-mentioned circulating water drainage storage and transportation system, the total external sewage pipe is provided with a total external sewage pipe valve I, a total external sewage pipe drain valve I, a pressure gauge I, a total external sewage pipe vent valve I, a total external sewage pipe valve II, a flow meter I, a total external sewage pipe drain valve II and a total external sewage pipe valve III in sequence according to the water flow direction. The total external sewage pipe valve I and the total external sewage pipe drain valve I are located on the front side of the water inlet end of the sewage booster pump, and the total external sewage pipe drain valve II and the total external sewage pipe valve III are arranged on both sides of the water inlet and water outlet of the main shut-off valve.

[0014] The technical problem to be solved by the utility model can also be achieved through the following technical solutions. In the above-mentioned circulating water drainage storage and transportation system, a reducer I and a reducer II are respectively arranged at the water inlet and the water outlet of the sewage booster pump.

[0015] The technical problem to be solved by the utility model can also be achieved through the following technical solutions: in the above-mentioned circulating water drainage storage and transportation system, a sewage buffer tank drain valve I is arranged on the top of the sewage buffer tank.

[0016] Compared with the prior art, the beneficial technical effect of the utility model is that the circulating sewage after filtering by the side filter group needs to be tested for components in the analysis room before being discharged. When the pH value, phosphorus, ammonia nitrogen, COD and other indicators exceed the standard, the interlocking sewage booster pump and the main shut-off valve are closed, and the circulation pump is started to pump the circulating sewage in the sewage buffer tank into the circulating water pool, and participate in the filtration of the side filter group again, thereby realizing the automation of circulating sewage drainage, realizing sewage regeneration, and saving water resources; and a low-temperature drain pipe is configured. When it is extremely cold, the circulating sewage in the sewage buffer tank is discharged through the low-temperature drain pipe to avoid freezing of the sewage buffer tank due to the presence of circulating sewage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the circulating water drainage storage and transportation system of the utility model.

[0018] In the figure, 1. outlet pipe of bypass filter group; 2. bypass filter; 3. valve Ⅰ of outlet pipe 1 of bypass filter group; 4. sewage buffer tank; 5. level gauge; 6. analysis room; 7. sewage booster pump; 8. main shut-off valve; 9. main external sewage pipe; 10. valve Ⅰ of main external sewage pipe; 11. drain valve Ⅰ of main external sewage pipe; 12. pressure gauge Ⅰ; ​​13. vent valve Ⅰ of main external sewage pipe; 14. valve Ⅱ of main external sewage pipe; 15. flow meter Ⅰ; 16. drain valve Ⅱ of main external sewage pipe; 17. valve Ⅲ of main external sewage pipe; 18. reducer Ⅰ; 19. reducer Ⅱ; 20. drain valve Ⅰ of sewage buffer tank; 21. reflux pipe; 22. circulation pump. DETAILED DESCRIPTION

[0019] The specific technical solutions of the present invention are further described below with reference to the accompanying drawings, so as to facilitate further understanding of the present invention by those skilled in the art, and do not constitute any limitation to the rights thereof.

[0020] Example 1, reference Figure 1 , a circulating water drainage storage and transportation system, a circulating water drainage storage and transportation system, the system comprises:

[0021] A bypass filter group outlet pipe 1, the front of which is equipped with two bypass filters 2 for treating circulating sewage, the water inlet end of which is connected to the water outlet end of the bypass filter group, and is used to supply filtered circulating sewage, and a bypass filter group outlet pipe 1 valve Ⅰ3 is provided on the bypass filter group outlet pipe 1, and the bypass filter group outlet pipe 1 valve Ⅰ3 controls the on-off of the bypass filter group outlet pipe 1;

[0022] A sewage buffer tank 4, wherein the outlet end of the outlet pipe 1 of the bypass filter group is connected to the inlet end of the sewage buffer tank 4, and the sewage buffer tank 4 is used to hold the circulating sewage filtered by the bypass filter 2, and serves as a transfer container for external discharge. A liquid level gauge 5 is arranged in the sewage buffer tank 4, and the liquid level in the sewage buffer tank 4 is detected by the liquid level gauge 5, and the interlocking between the analysis room 6 and the sewage booster pump 7 and the main shut-off valve 8 is involved, and when the liquid level value is lower than 300 mm, the main shut-off valve 8 and the sewage booster pump 7 are closed;

[0023] A total external sewage pipe 9, whose water inlet end is connected to the sewage buffer tank 4, is used to discharge the circulating sewage to the local downstream sewage treatment plant, so as to discharge the circulating sewage in the sewage buffer tank 4. A sewage booster pump 7 and a total shut-off valve 8 are sequentially arranged on the total external sewage pipe 9 according to the water flow direction. The total external sewage pipe valve Ⅰ10, the total external sewage pipe guide valve Ⅰ11, the pressure gauge Ⅰ12, the total external sewage pipe vent valve Ⅰ13, the total external sewage pipe valve Ⅱ14, the flow meter Ⅰ15, the total external sewage pipe guide valve Ⅱ16 and the total external sewage pipe valve Ⅲ17 are sequentially arranged on the total external sewage pipe 9 according to the water flow direction. The total external sewage pipe valve Ⅰ10 and the total external sewage pipe guide valve Ⅰ11 are located in front of the water inlet end of the sewage booster pump 7, and the total external sewage pipe guide valve Ⅱ16 and the total external sewage pipe valve Ⅲ17 are arranged on both sides of the water inlet and the water outlet of the total shut-off valve 8;

[0024] In order to ensure the normal use of the sewage booster pump 7, alleviate the pressure difference of the sewage booster pump 7, and improve the flow efficiency of the circulating sewage, we respectively set a reducer I 18 and a reducer II 19 at the water inlet and outlet of the sewage booster pump 7, and the diameter of the pipe can be customized according to the use requirements;

[0025] In order to discharge gas from the sewage buffer tank 4 to balance the internal air pressure, prevent liquid from overflowing, and play a safety protection role, a sewage buffer tank vent valve Ⅰ20 is provided on the top of our sewage buffer tank 4;

[0026] The reflux pipe 21 has its water inlet end connected to the bottom of the sewage buffer tank 4 and its water outlet end connected to the circulating water pool (not shown) supplying water to the side filter 2. A circulating pump 22 is installed on it to flow the circulating sewage in the sewage buffer tank 4 back to the front of the side filter group. The design purpose of the reflux pipe 21 is that the analysis room 6 is constantly testing various indicators such as pH value, phosphorus, ammonia nitrogen, COD, etc., and the testing also takes a certain amount of time. When the test finds that a certain value exceeds the standard, the circulating sewage has arrived in the sewage buffer tank 4 during the testing period of the analysis room 6. If this part of the circulating sewage is discharged normally after the subsequent investigation and adjustment operation, it will have a certain impact on the environment. Therefore, this part of the circulating sewage also needs to be reprocessed. The reflux pipe 21 and the circulating pump 22 thereon can return the circulating sewage in the sewage buffer tank 4 and perform secondary treatment, avoiding the safety hazard of this part of the circulating sewage being directly discharged without being treated;

[0027] An analysis room 6 is equipped with an instrument for monitoring the water quality of circulating sewage, such as a water quality analysis cabinet, etc., which is interlocked with the liquid level meter 5, the sewage booster pump 7, the main shut-off valve 8 and the circulation pump 22. For example, during the analysis of the pH value, phosphorus, ammonia nitrogen, COD and other indicators of the circulating sewage by the analysis room 6, when the circulating sewage meets the standard and the liquid level meter 5 detects that the liquid level in the sewage buffer tank 4 is greater than 700mm, the sewage booster pump 7 and the main shut-off valve 8 are opened normally, and after the main shut-off valve 8 is opened, the sewage booster pump 7 is opened after a delay of 5s; when the detection does not meet the standard or the liquid level meter 5 detects that the liquid level is lower than 300mm, the main shut-off valve 8 and the sewage booster pump 7 are closed, and after the sewage booster pump 7 is closed, the main shut-off valve 8 is closed after a delay of 10s;

[0028] In order to prevent the sewage buffer tank 4 from freezing due to the presence of circulating sewage in extreme cold weather, we have added a low-temperature drain pipe at the bottom of the sewage buffer tank 4, whose water inlet end is connected to the bottom of the sewage buffer tank 4, and the circulating sewage in the sewage buffer tank 4 can be discharged through the low-temperature drain pipe.

[0029] When the circulating water drainage storage and transportation system is used:

[0030] (1) When the detection of the analysis room 6 meets the standard: when the liquid level gauge 5 detects that the liquid level in the sewage buffer tank 4 is greater than 700 mm, the sewage booster pump 7 and the main shut-off valve 8 are opened normally, and after the main shut-off valve 8 is opened, the sewage booster pump 7 is opened after a delay of 5 seconds;

[0031] (2) When the detection of the analysis room 6 does not meet the standard or the liquid level detected by the liquid level gauge 5 is lower than 300 mm: the main shut-off valve 8 and the sewage booster pump 7 are closed, and after the sewage booster pump 7 is closed, the main shut-off valve 8 is closed after a delay of 10 seconds.

Claims

1. A circulating water drainage storage and transportation system, characterized in that: The system includes: A water outlet pipe of the bypass filter group, whose water inlet end is connected to the water outlet end of the bypass filter group, and is used to supply filtered circulating sewage; A sewage buffer tank, wherein the water outlet end of the water outlet pipe of the bypass filter group is connected to the water inlet end of the sewage buffer tank, and a liquid level meter is arranged in the sewage buffer tank; The main external sewage pipe has its water inlet connected to the sewage buffer tank to discharge the circulating sewage in the sewage buffer tank. A sewage booster pump and a main shut-off valve are arranged on the main external sewage pipe in sequence according to the water flow direction; The return pipe has its water inlet connected to the bottom of the sewage buffer tank and its water outlet connected to the circulating water pool that supplies water to the bypass filter. A circulating pump is installed on it to flow the circulating sewage in the sewage buffer tank back to the front of the bypass filter group. An analysis room with built-in instruments for monitoring the water quality of circulating sewage, which is interlocked with the liquid level meter, sewage booster pump, main shut-off valve and circulating pump; The low-temperature drainage pipe has its water inlet end connected to the bottom of the sewage buffer tank.

2. A circulating water drainage storage and transportation system according to claim 1, characterized in that: The bypass filter group water outlet pipe is provided with a bypass filter group water outlet pipe valve I.

3. A circulating water drainage storage and transportation system according to claim 2, characterized in that: The total external sewage pipe is provided with a total external sewage pipe valve I, a total external sewage pipe drain valve I, a pressure gauge I, a total external sewage pipe vent valve I, a total external sewage pipe valve II, a flow meter I, a total external sewage pipe drain valve II and a total external sewage pipe valve III in sequence according to the direction of water flow. The total external sewage pipe valve I and the total external sewage pipe drain valve I are located in front of the water inlet end of the sewage booster pump, and the total external sewage pipe drain valve II and the total external sewage pipe valve III are arranged on both sides of the water inlet and outlet of the total cut-off valve.

4. A circulating water drainage storage and transportation system according to any one of claims 1 to 3, characterized in that: A reducing pipe I and a reducing pipe II are respectively arranged at the water inlet and the water outlet of the sewage booster pump.

5. A circulating water drainage storage and transportation system according to claim 4, characterized in that: A sewage buffer tank drain valve I is arranged on the top of the sewage buffer tank.

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