CN220802109U - DMTO device effluent water sump - Google Patents
DMTO device effluent water sump Download PDFInfo
- Publication number
- CN220802109U CN220802109U CN202321955500.1U CN202321955500U CN220802109U CN 220802109 U CN220802109 U CN 220802109U CN 202321955500 U CN202321955500 U CN 202321955500U CN 220802109 U CN220802109 U CN 220802109U
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- Prior art keywords
- production sewage
- lifting
- water
- production
- sewage
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 104
- 239000010865 sewage Substances 0.000 claims abstract description 152
- 238000004519 manufacturing process Methods 0.000 claims abstract description 122
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 230000001105 regulatory effect Effects 0.000 claims abstract description 11
- 238000001914 filtration Methods 0.000 claims description 10
- 239000003054 catalyst Substances 0.000 claims description 5
- 239000002351 wastewater Substances 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Abstract
The utility model discloses a sewage tank of a DMTO device, wherein a water inlet of a production sewage lifting tank is connected with a production sewage water inlet pipe, a water inlet of a polluted rainwater lifting tank is connected with a polluted rainwater water inlet pipe, water inlet pipes of a production sewage lifting pump and a polluted rainwater lifting pump are respectively arranged at the bottoms of the production sewage lifting tank and the polluted rainwater lifting tank, water outlets of the production sewage lifting pump and the polluted rainwater lifting pump are connected with a production sewage water drain pipe, a first water return pipe is connected to the production sewage water drain pipe, and a water outlet end of the first water return pipe is connected with the production sewage lifting tank; a liquid level meter is arranged in the production sewage lifting pool, and a regulating valve is arranged on the first water return pipe. The liquid level meter is used for detecting the water level in the production sewage lifting pond, and when the liquid level in the production sewage lifting pond is lower than 1.5m, the regulating valve is opened, and the production sewage pumped out of the production sewage drain pipe is returned to the production sewage lifting pond, so that the production sewage lifting pond keeps a certain liquid level, and the frequent start and stop of the production sewage lifting pump are avoided.
Description
Technical field:
The utility model relates to the field of sewage treatment, in particular to a sewage tank of a DMTO device.
The background technology is as follows:
The DMTO device is a production device for producing ethylene and propylene by using coal or natural gas as raw materials, and waste water generated in the production of the DMTO process is high in COD and pH and needs to be sent to a water treatment unit for treatment, so that production sewage is firstly sent to a sewage tank and then sent to the water treatment unit for treatment through a lifting pump.
At present, a plurality of lifting pumps are used for pumping production sewage in a sewage tank, but due to the fact that the production fluctuation and the large initial rainwater quantity exist, the quantity of the produced sewage fluctuates to a certain extent, the treatment capacity of a sewage treatment unit is certain, when the production is carried out, if the quantity of the sewage tank is small, the liquid level of the sewage tank is rapidly lowered, so that the lifting pumps can pump without water, frequent starting and stopping are needed, and the service life of the lifting pumps is seriously influenced; if the sewage pool water quantity is big, a plurality of elevator pumps start together, and the sewage treatment unit can't receive so many production sewage, leads to sewage treatment unit overload, and frequent shut down elevator pump is equally required, influences the life of elevator pump.
The utility model comprises the following steps:
the utility model aims to provide a sewage tank of a DMTO device.
The utility model is implemented by the following technical scheme:
The utility model provides a DMTO device effluent water sump, includes production sewage lifting tank, pollutes rainwater lifting tank, production sewage lifting pump and pollutes the rainwater lifting pump, the water inlet and the production sewage inlet tube of production sewage lifting tank, the water inlet and the pollution rainwater inlet tube of pollution rainwater lifting tank, production sewage lifting pump with the inlet tube of pollution rainwater lifting pump is arranged in respectively the bottom of production sewage lifting tank with the pollution rainwater lifting tank, production sewage lifting pump with the delivery port of pollution rainwater lifting pump all is connected with production sewage drain pipe be connected with first wet return on the production sewage drain pipe, the play water end of first wet return with production sewage lifting tank is connected;
A liquid level meter is arranged in the production sewage lifting pool, a regulating valve is arranged on the first water return pipe, and the liquid level meter is electrically connected with the regulating valve.
Preferably, the water inlet pipe of the production sewage lifting pump is connected with a polluted rainwater pipe, and the water inlet of the polluted rainwater pipe is arranged at the bottom of the polluted rainwater lifting pond.
Preferably, the sewage treatment device further comprises a production sewage grating pool, a water inlet of the production sewage grating pool is connected with the production sewage water inlet pipe, a water outlet of the production sewage grating pool is connected with the production sewage lifting pool, and a production sewage filtering grating is arranged between the production sewage grating pool and the production sewage lifting pool.
Preferably, the device further comprises a polluted rainwater grating pool, a water inlet of the polluted rainwater grating pool is connected with a polluted rainwater water inlet pipe, a water outlet of the polluted rainwater grating pool is connected with the polluted rainwater lifting pool, and a polluted rainwater filtering grating is arranged between the polluted rainwater grating pool and the polluted rainwater lifting pool.
Preferably, the sewage treatment device further comprises an overflow tank, wherein a water inlet of the overflow tank is connected with a sewage pipe containing the catalyst, and a water outlet of the overflow tank is connected with the polluted rainwater grid tank.
Preferably, the production sewage drain pipe is connected with the overflow pool through a second water return pipe, and a cut-off valve is arranged on the second water return pipe.
The utility model has the advantages that: the liquid level meter is used for detecting the water level in the production sewage lifting tank, when the water level in the production sewage lifting tank is lower than 1.5m, the regulating valve is opened, and the production sewage pumped out of the production sewage drain pipe is returned to the production sewage lifting tank, so that the production sewage lifting tank keeps a certain water level, and the frequent start and stop of the production sewage lifting pump are avoided; when the water level in the polluted rainwater lifting pond is not high, the water level of the production sewage lifting pond is higher than 3m, and the sewage treatment unit cannot receive so much production sewage, the cut-off valve is opened to enable the production sewage to be sent back to the polluted rainwater lifting pond through the second water return pipe for temporary storage, so that the load of the sewage treatment unit is relieved, and the frequent start and stop of the production sewage lifting pump are avoided.
Description of the drawings:
fig. 1 is a schematic structural view of the present utility model.
In the figure: the sewage treatment system comprises a sewage lifting pond 1, a polluted rainwater lifting pond 2, a sewage lifting pump 3, a polluted rainwater lifting pump 4, a sewage water inlet pipe 5, a sewage water outlet pipe 6, a first water return pipe 7, a liquid level meter 8, a regulating valve 9, a polluted rainwater pipe 10, a sewage grid pond 11, a sewage filtering grid 12, a polluted rainwater grid pond 13, a polluted rainwater filtering grid 14, an overflow pond 15, a second water return pipe 16 and a cut-off valve 17.
The specific embodiment is as follows:
As shown in fig. 1, a sewage tank of a DMTO device comprises a production sewage lifting tank 1, a polluted rainwater lifting tank 2, a production sewage lifting pump 3 and a polluted rainwater lifting pump 4, wherein a water inlet of the production sewage lifting tank 1 is connected with a production sewage water inlet pipe 5, a water inlet of the polluted rainwater lifting tank 2 and a polluted rainwater water inlet pipe, a water inlet pipe of the production sewage lifting pump 3 and a water inlet pipe of the polluted rainwater lifting pump 4 are respectively arranged at the bottoms of the production sewage lifting tank 1 and the polluted rainwater lifting tank 2, water outlets of the production sewage lifting pump 3 and the polluted rainwater lifting pump 4 are connected with a production sewage water outlet pipe 6, a first water return pipe 7 is connected to the production sewage water outlet pipe 6, and a water outlet end of the first water return pipe 7 is connected with the production sewage lifting tank 1;
a liquid level meter 8 is arranged in the production sewage lifting tank 1, a regulating valve 9 is arranged on the first water return pipe 7, and the liquid level meter 8 is electrically connected with the regulating valve 9.
The water inlet pipe of the production sewage lifting pump 3 is connected with a polluted rainwater pipe 10, and the water inlet of the polluted rainwater pipe 10 is arranged at the bottom of the polluted rainwater lifting pond 2;
The production sewage is sent into the production sewage lifting pond 1 from the production sewage water inlet pipe 5, the polluted rainwater is sent into the polluted rainwater lifting pond 2 from the polluted rainwater pipe 10, the production sewage in the production sewage pond is pumped out from the production sewage water outlet pipe 6 by the production sewage lifting pump 3, and the raw polluted rainwater is pumped out from the production sewage water outlet pipe 6 by the polluted rainwater lifting pump 4 from the polluted rainwater lifting pond 2; the liquid level meter 8 is used for detecting the water level in the production sewage lifting tank 1, when the water level in the production sewage lifting tank 1 is lower than 1.5m, the regulating valve 9 is opened, and the production sewage pumped out of the production sewage drain pipe 6 is returned to the production sewage lifting tank 1, so that the production sewage lifting tank 1 keeps a certain liquid level, and the frequent start and stop of the production sewage lifting pump 3 are avoided;
The polluted rainwater only exists under specific conditions, so that the polluted rainwater lifting pump 4 does not need to be frequently turned on and off, one production sewage lifting pump 3 can be controlled by a valve to be connected with the production sewage lifting pond 1 or the polluted rainwater lifting pond 2, and the polluted rainwater in the polluted rainwater lifting pond 2 is pumped out by utilizing the polluted rainwater pipe 10.
The sewage treatment device further comprises a production sewage grating pool 11, a water inlet of the production sewage grating pool 11 is connected with the production sewage water inlet pipe 5, a water outlet of the production sewage grating pool 11 is connected with the production sewage lifting pool 1, a production sewage filtering grating 12 is arranged between the production sewage grating pool 11 and the production sewage lifting pool 1, sundries in the production sewage are blocked in the production sewage grating pool 11 through the production sewage filtering grating 12, and the sundries are prevented from entering the production sewage lifting pool 1 to damage the production sewage lifting pump 3.
The rainwater lifting pump further comprises a polluted rainwater grating pool 13, a water inlet of the polluted rainwater grating pool 13 is connected with a polluted rainwater water inlet pipe, a water outlet of the polluted rainwater grating pool 13 is connected with the polluted rainwater lifting pool 2, a polluted rainwater filtering grating 14 is arranged between the polluted rainwater grating pool 13 and the polluted rainwater lifting pool 2, sundries in the polluted rainwater are blocked in the polluted rainwater grating pool 13 through the polluted rainwater filtering grating 14, and the damages of the polluted rainwater lifting pump 4 caused by the sundries entering the polluted rainwater grating pool 13 are avoided.
The sewage treatment device further comprises an overflow pool 15, a water inlet of the overflow pool 15 is connected with a sewage pipe containing the catalyst, a water outlet of the overflow pool 15 is connected with a polluted rainwater grating pool 13, sewage containing the catalyst is sent into the overflow pool 15 through the sewage pipe containing the catalyst, impurities in the sewage are precipitated, and then the sewage is sent into the polluted rainwater grating pool 13.
The production sewage drain pipe 6 is connected with the overflow pool 15 through a second water return pipe 16, and a cut-off valve 17 is arranged on the second water return pipe 16; when the water level in the polluted rainwater lifting pond 2 is not high, the water level of the production sewage lifting pond 1 is higher than 3m, and the sewage treatment unit cannot receive so much production sewage, the cut-off valve 17 is opened to enable the production sewage to be sent back to the polluted rainwater lifting pond 2 for temporary storage through the second water return pipe 16, so that the load of the sewage treatment unit is relieved, and the frequent start and stop of the production sewage lifting pump 3 are avoided.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (6)
1. The DMTO device sewage pool is characterized by comprising a production sewage lifting pool, a polluted rainwater lifting pool, a production sewage lifting pump and a polluted rainwater lifting pump, wherein a water inlet of the production sewage lifting pool is connected with a production sewage water inlet pipe, a water inlet of the polluted rainwater lifting pool and a polluted rainwater water inlet pipe, the production sewage lifting pump and the water inlet pipe of the polluted rainwater lifting pump are respectively arranged at the bottoms of the production sewage lifting pool and the polluted rainwater lifting pool, water outlets of the production sewage lifting pump and the polluted rainwater lifting pump are connected with a production sewage water drain pipe, and a first water return pipe is connected to the production sewage water drain pipe;
A liquid level meter is arranged in the production sewage lifting pool, a regulating valve is arranged on the first water return pipe, and the liquid level meter is electrically connected with the regulating valve.
2. The DMTO device lagoon of claim 1, wherein the inlet pipe of the production wastewater lift pump is connected with a polluted rainwater pipe, and the inlet port of the polluted rainwater pipe is arranged at the bottom of the polluted rainwater lift tank.
3. The DMTO device lagoon according to claim 1 or 2, further comprising a production sewage grating lagoon, wherein a water inlet of the production sewage grating lagoon is connected with the production sewage water inlet pipe, a water outlet of the production sewage grating lagoon is connected with the production sewage lifting lagoon, and a production sewage filtering grating is arranged between the production sewage grating lagoon and the production sewage lifting lagoon.
4. The DMTO device lagoon according to claim 1 or 2, further comprising a contaminated rain water grid pond, wherein a water inlet of the contaminated rain water grid pond is connected with a contaminated rain water inlet pipe, a water outlet of the contaminated rain water grid pond is connected with the contaminated rain water lifting pond, and a contaminated rain water filtering grid is arranged between the contaminated rain water grid pond and the contaminated rain water lifting pond.
5. The DMTO device lagoon of claim 4, further comprising an overflow basin, wherein the inlet of the overflow basin is connected to a catalyst-containing sewer, and wherein the outlet of the overflow basin is connected to the contaminated rain grid basin.
6. The DMTO device lagoon according to claim 5, wherein the production wastewater drain pipe is connected with the overflow tank through a second water return pipe, and a shut-off valve is installed on the second water return pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321955500.1U CN220802109U (en) | 2023-07-21 | 2023-07-21 | DMTO device effluent water sump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321955500.1U CN220802109U (en) | 2023-07-21 | 2023-07-21 | DMTO device effluent water sump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220802109U true CN220802109U (en) | 2024-04-19 |
Family
ID=90713173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321955500.1U Active CN220802109U (en) | 2023-07-21 | 2023-07-21 | DMTO device effluent water sump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220802109U (en) |
-
2023
- 2023-07-21 CN CN202321955500.1U patent/CN220802109U/en active Active
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