CN212924511U - PAC automatic reagent feeding system - Google Patents
PAC automatic reagent feeding system Download PDFInfo
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- CN212924511U CN212924511U CN202020973940.XU CN202020973940U CN212924511U CN 212924511 U CN212924511 U CN 212924511U CN 202020973940 U CN202020973940 U CN 202020973940U CN 212924511 U CN212924511 U CN 212924511U
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- 239000003153 chemical reaction reagent Substances 0.000 title abstract description 13
- 239000003814 drug Substances 0.000 claims abstract description 140
- 239000007788 liquid Substances 0.000 claims abstract description 112
- 238000005086 pumping Methods 0.000 claims abstract description 79
- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 230000003647 oxidation Effects 0.000 claims description 23
- 238000007254 oxidation reaction Methods 0.000 claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 229940079593 drug Drugs 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 5
- 230000004900 autophagic degradation Effects 0.000 claims 9
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 6
- 229910052698 phosphorus Inorganic materials 0.000 description 6
- 239000011574 phosphorus Substances 0.000 description 6
- 239000010865 sewage Substances 0.000 description 6
- 238000011282 treatment Methods 0.000 description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 5
- 229910019142 PO4 Inorganic materials 0.000 description 3
- 239000010452 phosphate Substances 0.000 description 3
- 238000011221 initial treatment Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920000388 Polyphosphate Polymers 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009388 chemical precipitation Methods 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000001205 polyphosphate Substances 0.000 description 1
- 235000011176 polyphosphates Nutrition 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
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- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
The utility model discloses a PAC automatic reagent feeding system, include: a medicine storage tank for storing the liquid PAC medicament, a feeding and conveying line which is connected with the medicine storage tank and the liquid PAC feeding system and is used for conveying the liquid PAC medicament provided by the liquid PAC feeding system into the medicine storage tank, the device comprises an auxiliary tank for feeding the liquid PAC medicament, a main feeding line, a standby feeding line, a first pumping device, a second pumping device and a conveying control mechanism, wherein the main feeding line is connected with the medicine storage tank, the auxiliary tank and a feeding port and is used for conveying the liquid PAC medicament in the medicine storage tank to the auxiliary tank and feeding the liquid PAC medicament out of the feeding port, the standby feeding line is connected with the medicine storage tank and the feeding port and is used for directly conveying the liquid PAC medicament in the medicine storage tank to the feeding port, the first pumping device is arranged on the feeding conveying line and the main feeding line and is used for providing conveying power, the second pumping device is arranged on the standby feeding line and is used for providing conveying power, and the conveying control mechanism is used for controlling the liquid PAC medicament to be conveyed.
Description
Technical Field
The utility model relates to a sewage treatment device field especially relates to a PAC automatic reagent feeding system.
Background
In the process of sewage treatment, in the face of increasing treatment water quantity and deterioration of sewage quality, the total phosphorus of the effluent after the primary treatment is not satisfactory. In order to improve the effluent quality, a chemical treatment system (PAC automatic dosing system) is generally added on the basis of primary treatment, PAC is polymeric alumina, polyaluminium for short, and belongs to an inorganic high-molecular coagulant, the main object of PAC chemical phosphorus removal is phosphate, most orthophosphate is removed, and simultaneously some organic phosphorus and polyphosphate are adsorbed and removed, so that the proportion of orthophosphate is further reduced. The phosphorus removal mechanism is divided into chemical precipitation, the adsorption of precipitates and the adsorption of a complex compound, and the standard of the total phosphorus of the effluent is guaranteed.
The conventional PAC automatic dosing system comprises a discharge pump and a plurality of diaphragm metering pumps, under the general condition, direct dosing needs 24-hour continuous operation of the plurality of diaphragm metering pumps, and the liquid PAC medicament has corrosivity, high energy consumption, large equipment maintenance workload and high operation cost.
SUMMERY OF THE UTILITY MODEL
The utility model provides a PAC automatic reagent feeding system to solve the technical problem that current PAC automatic reagent feeding system running cost is high, the maintenance of equipment work load is big.
According to an aspect of the utility model provides a PAC automatic reagent feeding system for throw liquid PAC medicament that liquid PAC feeding system provided from the dog-house to oxidation ditch delivery port, with through the better phosphate that absorbs in the sewage treatment system of mud in the follow-up sedimentation technology, include: a medicine storage tank for storing the liquid PAC medicament, a feeding and conveying line which is connected with the medicine storage tank and the liquid PAC feeding system and is used for conveying the liquid PAC medicament provided by the liquid PAC feeding system into the medicine storage tank, the device comprises an auxiliary tank for feeding the liquid PAC medicament, a main feeding line, a standby feeding line, a first pumping device, a second pumping device and a conveying control mechanism, wherein the main feeding line is connected with the medicine storage tank, the auxiliary tank and a feeding port and is used for conveying the liquid PAC medicament in the medicine storage tank to the auxiliary tank and feeding the liquid PAC medicament out of the feeding port, the standby feeding line is connected with the medicine storage tank and the feeding port and is used for directly conveying the liquid PAC medicament in the medicine storage tank to the feeding port, the first pumping device is arranged on the feeding conveying line and the main feeding line and is used for providing conveying power, the second pumping device is arranged on the standby feeding line and is used for providing conveying power, and the conveying control mechanism is used for controlling the liquid PAC medicament to be conveyed.
The feeding conveying line comprises a first conveying pipeline, a second conveying pipeline and a third conveying pipeline, wherein a first input end of the first conveying pipeline is communicated with the liquid PAC feeding system, an input end of the second conveying pipeline is communicated to the first conveying pipeline, an input end of the third conveying pipeline is communicated to an output end of the second conveying pipeline, and an output end of the third conveying pipeline is communicated to an input end of the medicine storage tank; the first pumping device is arranged on the second conveying pipeline; the conveying control mechanism comprises a first control valve, a second control valve and a third control valve, wherein the first control valve is arranged on the first conveying pipeline and is used for controlling the on-off of a feeding channel of the liquid PAC feeding system, the second control valve is arranged on the second conveying pipeline and is used for controlling the on-off of a feeding pumping channel of the first pumping device, and the third control valve is arranged on the third conveying pipeline and is used for controlling the on-off of a PCA input channel of the medicine storage tank; the liquid PAC medicament provided by the liquid PAC feeding system is pumped to the medicament storage tank through the first conveying pipeline, the second conveying pipeline and the third conveying pipeline by the first pumping device.
Further, the main dosing line comprises a first conveying pipeline, a second conveying pipeline, a fourth conveying pipeline and an output pipeline, wherein the second input end of the first conveying pipeline is communicated to the output end of the medicine storage tank, the input end of the fourth conveying pipeline is communicated to the output end of the second conveying pipeline, the output end of the fourth conveying pipeline is communicated to the input end of the auxiliary tank, the input end of the output pipeline is communicated to the output end of the auxiliary tank, and the output end of the output pipeline is communicated to the feeding port; the conveying control mechanism also comprises a fourth control valve, a fifth control valve and a sixth control valve, wherein the fourth control valve is arranged on the first conveying pipeline and is used for controlling the on-off of the PAC output channel of the medicine storage tank, the fifth control valve is arranged on the fourth conveying pipeline and is used for controlling the on-off of the PAC input channel of the auxiliary tank, and the sixth control valve is arranged on the output pipeline and is used for controlling the on-off of the PAC output channel of the auxiliary tank; and the liquid PAC medicament in the medicament storage tank is pumped into the auxiliary tank through the first conveying pipeline, the second conveying pipeline and the fourth conveying pipeline by the first pumping device, and then is fed into a water outlet of the oxidation ditch through the output pipeline.
Furthermore, the standby dosing line comprises a first conveying pipeline, a fifth conveying pipeline and an output pipeline, wherein the input end of the fifth conveying pipeline is communicated to the first conveying pipeline, and the output end of the fifth conveying pipeline is communicated to the output pipeline; the second pumping device is arranged on the fifth conveying pipeline; the conveying control mechanism further comprises a seventh control valve which is arranged on the fifth conveying pipeline and used for controlling the on-off of a feeding pumping channel of the second pumping device; and directly pumping the liquid PAC medicament in the auxiliary tank into an output pipeline through a first conveying pipeline and a fifth conveying pipeline by a second pumping device, and then adding the liquid PAC medicament into a water outlet of the oxidation ditch.
Furthermore, the output pipeline comprises an output main pipe connected with the auxiliary tank and a plurality of output branch pipes respectively connected with the output main pipe and the feed ports of the water outlets of the plurality of groups of oxidation ditches, and each output branch pipe is provided with an output control valve used for controlling the liquid PAC medicament in the output branch pipe to flow into the feed port of the water outlet of the oxidation ditch.
Further, the conveying control mechanism comprises a liquid level control device arranged in the auxiliary tank.
Further, a plurality of interconnected drug storage tanks are connected with the liquid PAC drug supply system through a first conveying pipeline and are connected with the auxiliary tank through a second conveying pipeline.
Further, the total drug storage quantity of the drug storage tanks is 15-25 times of the drug storage quantity of the auxiliary tank.
Further, the medicine storage tank and the auxiliary tank are both made of PE materials.
Further, the first pumping device is a centrifugal pump, and the second pumping device is a diaphragm metering pump.
The utility model discloses following beneficial effect has:
the PAC automatic medicine adding system of the utility model pumps PAC provided by the liquid PAC feeding system to the medicine storage tank in sequence through the feeding and conveying route by starting the first pumping device to complete the feeding of PAC; the liquid PAC medicament in the medicament storage tank is conveyed into the auxiliary tank through the main feeding route by starting the first pumping device, so that the PAC liquid level in the auxiliary tank is raised to a certain height, and then the first pumping device can be closed, and further the liquid PAC medicament in the auxiliary tank is automatically and stably fed to the water outlet of the oxidation ditch as a main feeding mode; when the adding amount of the liquid PAC medicament needs to be increased, the liquid PAC medicament in the medicament storage tank is directly pumped to a feeding port through a spare adding route by starting a second pumping device, and then is added to a water outlet of an oxidation ditch to be used as a spare adding mode; therefore, the first pumping device can be used during feeding and can also be used during feeding, the first pumping device can be automatically closed after the liquid level of the liquid PAC in the auxiliary tank rises, the liquid PAC in the auxiliary tank can be automatically and stably fed through the output pipeline, the second pumping device is only used during standby feeding, and the first pumping device and the second pumping device do not need to continuously operate for a long time, so that the service lives of the first pumping device and the second pumping device are prolonged, and the operation cost of the whole system is reduced.
In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
fig. 1 is a schematic structural view of a PAC automatic medicine feeding system according to a preferred embodiment of the present invention.
Illustration of the drawings:
1. a medicine storage tank; 2. auxiliary tanks; 3. a first delivery line; 4. a second delivery line; 5. a third delivery line; 6. a fourth delivery line; 7. a fifth delivery line; 8. an output pipeline; 9. a first pumping device; 10. a second pumping device; 11. a first control valve; 12. a second control valve; 13. a third control valve; 14. a fourth control valve; 15. a fifth control valve; 16. a sixth control valve; 17. a seventh control valve; 18. an eighth control valve.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways, which are defined and covered below.
Fig. 1 is a schematic structural view of a PAC automatic medicine feeding system according to a preferred embodiment of the present invention.
As shown in fig. 1, the PAC automatic reagent feeding system of this embodiment is configured to feed a liquid PAC reagent provided by a liquid PAC feeding system from a feeding port to an outlet of an oxidation ditch, so as to better absorb phosphate in a sewage treatment system through sludge in a subsequent sedimentation process, and includes: a medicine storage tank 1 for storing liquid PAC medicament, a feeding and conveying line which is connected with the medicine storage tank 1 and a PAC feeding system and is used for conveying the liquid PAC medicament provided by the liquid PAC medicament PAC feeding system to the medicine storage tank 1, the device comprises an auxiliary tank 2 for adding the liquid PAC medicament, a main adding line which is connected with the medicine storage tank 1, the auxiliary tank 2 and a feed port and used for conveying the liquid PAC medicament in the medicine storage tank 1 to the auxiliary tank 2 and throwing the liquid PAC medicament from the feed port, a standby adding line which is connected with the medicine storage tank 1 and the feed port and used for directly conveying the liquid PAC medicament in the medicine storage tank 1 to the feed port, a first pumping device 9 which is arranged on the feeding conveying line and the main adding line and used for providing conveying power, a second pumping device 10 which is arranged on the standby adding line and used for providing conveying power, and a conveying control mechanism which is used for controlling the liquid PAC medicament to be conveyed along at least one of the feeding conveying line, the main adding line and the standby adding line. The utility model discloses a PAC automatic reagent feeding system, through starting first pumping installations 9 with liquid PAC medicament that liquid PAC feed system provided in proper order through the feeding transport route pump sending to medicine storage tank 1 in order to accomplish the feeding of liquid PAC medicament; the liquid PAC medicament in the medicament storage tank 1 is conveyed into the auxiliary tank 2 through a main feeding route by starting a first pumping device 9, so that the first pumping device 9 can be automatically closed after the PAC liquid level in the auxiliary tank 2 is raised to a certain height, and then the liquid PAC medicament in the auxiliary tank 2 is automatically and stably fed to a water outlet of an oxidation ditch as a main feeding mode; when the adding amount of PAC needs to be increased, the liquid PAC medicament in the medicament storage tank 1 is directly pumped to a feeding port through a spare adding route by starting a second pumping device 10, and then is added to a water outlet of an oxidation ditch to be used as a spare adding mode; therefore, the first pumping device 9 can be used during feeding and can also be used during feeding, the first pumping device 9 can be closed after the PAC liquid level in the auxiliary tank 2 is increased, so that the liquid PAC medicament in the auxiliary tank 2 can be automatically and stably fed through the output pipeline 8, the second pumping device 10 is only used during standby feeding, and the first pumping device 9 and the second pumping device 10 do not need to continuously run for a long time, so that the service lives of the first pumping device 9 and the second pumping device 10 are prolonged, and the running cost of the whole system is reduced.
As shown in fig. 1, the feeding and conveying line includes a first conveying pipeline 3, a second conveying pipeline 4 and a third conveying pipeline 5, a first input end of the first conveying pipeline 3 is communicated with the liquid PAC feeding system, an input end of the second conveying pipeline 4 is communicated to the first conveying pipeline 3, an input end of the third conveying pipeline 5 is communicated to an output end of the second conveying pipeline 4, and an output end of the third conveying pipeline 5 is communicated to an input end of the medicine storage tank 1; the first pumping device 9 is arranged on the second conveying pipeline 4; the conveying control mechanism comprises a first control valve 11 arranged on the first conveying pipeline 3 and used for controlling the on-off of a feeding channel of the PAC feeding system, a second control valve 12 arranged on the second conveying pipeline 4 and used for controlling the on-off of a feeding pumping channel of the first pumping device 9, and a third control valve 13 arranged on the third conveying pipeline 5 and used for controlling the on-off of a PCA input channel of the medicine storage tank 1; the liquid PAC reagent provided by the liquid PAC supply system is pumped by the first pumping device 9 to the drug storage tank 1 through the first transfer line 3, the second transfer line 4 and the third transfer line 5. During feeding, the liquid PAC medicine supply system and the first pumping device 9 are started, and the first control valve 11, the second control valve 12 and the third control valve 13 are opened, so that the liquid PAC medicine provided by the liquid PAC medicine supply system is conveyed into the medicine storage tank 1 through the first conveying pipeline 3, the second conveying pipeline 4 and the third conveying pipeline 5, and the liquid PAC medicine supply system, the first pumping device 9, the first control valve 11, the second control valve 12 and the third control valve 13 are closed until the liquid level of the medicine storage tank 1 reaches the target liquid level height.
The main dosing line comprises a first conveying pipeline 3, a second conveying pipeline 4, a fourth conveying pipeline 6 and an output pipeline 8, wherein the second input end of the first conveying pipeline 3 is communicated to the output end of the medicine storage tank 1, the input end of the fourth conveying pipeline 6 is communicated to the output end of the second conveying pipeline 4, the output end of the fourth conveying pipeline 6 is communicated to the input end of the auxiliary tank 2, the input end of the output pipeline 8 is communicated to the output end of the auxiliary tank 2, and the output end of the output pipeline 8 is communicated to a feeding port; the conveying control mechanism further comprises a fourth control valve 14, a fifth control valve 15 and a sixth control valve 16, wherein the fourth control valve 14 is arranged on the first conveying pipeline 3 and is used for controlling the on-off of the PAC output channel of the medicine storage tank 1, the fifth control valve 15 is arranged on the fourth conveying pipeline 6 and is used for controlling the on-off of the PAC input channel of the auxiliary tank 2, and the sixth control valve 16 is arranged on the output pipeline 8 and is used for controlling the on-off of the PAC output channel of the auxiliary tank 2; the liquid PAC medicament in the medicament storage tank 1 is pumped into the auxiliary tank through the first conveying pipeline, the second conveying pipeline and the fourth conveying pipeline by the first pumping device 9, and then is fed to the water outlet of the oxidation ditch through the output pipeline. When adding, the first pumping device 9 is started, the fourth control valve 14, the second control valve 12, the fifth control valve 15 and the sixth control valve 16 are opened, so that the liquid PAC medicament in the medicament storage tank 1 is sequentially conveyed to the auxiliary tank 2 through the first conveying pipeline 3, the second conveying pipeline 4 and the fourth conveying pipeline 6, and when the liquid level of the auxiliary tank 2 reaches the height of the discharge port of the auxiliary tank 2, the liquid PAC medicament flows into the water outlet of the oxidation ditch from the feed inlet through the output pipeline 8, and when the liquid level of the auxiliary tank 2 reaches the highest liquid level, the first pumping device 9 is closed, and the liquid PAC medicament in the auxiliary tank 2 still automatically and stably flows into the water outlet of the oxidation ditch from the output pipeline 8 and the output branch pipe.
The standby dosing line comprises a first conveying pipeline 3, a fifth conveying pipeline 7 and an output pipeline 8, wherein the input end of the fifth conveying pipeline 7 is communicated to the first conveying pipeline 3, and the output end of the fifth conveying pipeline is communicated to the output pipeline 8; the second pumping device 10 is arranged on the fifth conveying pipeline 7; the conveying control mechanism further comprises a seventh control valve 17 which is arranged on the fifth conveying pipeline 7 and used for controlling the on-off of a feeding pumping channel of the second pumping device; the liquid PAC medicament in the auxiliary tank 2 is directly pumped into an output pipeline 8 through a first conveying pipeline 3 and a fifth conveying pipeline 7 by a second pumping device 10, and then is added to a water outlet of the oxidation ditch. When the total phosphorus concentration in the sewage is higher and the PAC dosage needs to be increased, the second pumping device 10 is started and the seventh control valve 17 is opened, so that the liquid PAC medicament in the medicament storage tank 1 sequentially flows into the water outlet of the oxidation ditch from the feed opening through the first conveying pipeline 3, the fifth conveying pipeline 7 and the output pipeline 8. Optionally, an eighth control valve 18 is further disposed on the fifth output line 8 and on one side of the output direction of the second pumping device 10 to prevent the liquid PAC reagent in the output line 8 from flowing into the fifth output line 8.
As shown in fig. 1, the output pipeline 8 includes an output main pipe connected to the auxiliary tank 2 and a plurality of output branch pipes respectively connected to the output main pipe and the material inlets of the multiple groups of water outlets of the oxidation ditch, and each output branch pipe is provided with an output control valve for controlling the liquid PAC reagent in the output branch pipe to flow into the material inlets of the water outlets of the oxidation ditch.
As shown in fig. 1, the conveyance control mechanism includes a liquid level control device provided in the auxiliary tank 2. And a liquid level control device is arranged to control the starting and closing of the first pumping device 9 according to the liquid level height in the auxiliary tank 2, so that the liquid PAC medicament is stably fed to the water outlet of the oxidation ditch from the output pipeline 8 during feeding. The auxiliary tank 2 is provided with a minimum liquid level height and a maximum liquid level height. The lowest liquid level is higher than the height of the discharge hole of the auxiliary tank 2, and the highest liquid level is lower than two thirds of the height of the auxiliary tank 2. When the liquid level control device detects that the liquid level in the auxiliary tank 2 is lower than the lowest liquid level, the first pumping device 9 is started to pump the PAC in the storage tank into the auxiliary tank 2. When the liquid level control device detects that the liquid level in the auxiliary tank 2 reaches the highest liquid level, the first pumping device 9 is closed, so that the liquid PAC medicament in the auxiliary tank 2 automatically and stably flows into the water outlet of the oxidation ditch from the output pipeline 8.
As shown in fig. 1, a plurality of interconnected drug storage tanks 1 are connected to the PAC drug supply system through first transfer lines 3 and to the auxiliary tank 2 through second transfer lines 4. The total medicine storage quantity of the medicine storage tanks 1 is 15-25 times of that of the auxiliary tank 2. In this embodiment, the PAC automatic dosing system comprises three interconnected drug storage tanks 1, each drug storage tank 1 having a capacity of 10 tons. The capacity of the auxiliary tank 2 was 1.5 tons. The medicine storage tank 1 and the auxiliary tank 2 are both made of PE materials.
In the present embodiment the first pumping means 9 is a centrifugal pump, the power of which is 1.5 KW. The second pumping device 10 is a diaphragm metering pump, and the flow range is 0-240L/h.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A PAC auto-medicine system, comprising:
a drug storage tank (1) for storing a liquid PAC medicament,
a feed delivery line connecting the drug storage tank (1) and the liquid PAC supply system for delivering the liquid PAC medicament provided by the liquid PAC supply system into the drug storage tank (1),
an auxiliary tank (2) for adding liquid PAC medicament,
a main feeding line which is connected with the medicine storage tank (1), the auxiliary tank (2) and the feeding port and is used for conveying the liquid PAC medicament in the medicine storage tank (1) to the auxiliary tank (2) and feeding out from the feeding port,
a spare feeding line which is connected with the medicine storage tank (1) and the feeding port and is used for directly conveying the liquid PAC medicament in the medicine storage tank (1) to the feeding port,
the liquid PAC drug feeder comprises a first pumping device (9) which is arranged on a feeding conveying line and a main dosing line and used for providing conveying power, a second pumping device (10) which is arranged on a standby dosing line and used for providing conveying power, and a conveying control mechanism which is used for controlling the liquid PAC drug to be conveyed along at least one line of the feeding conveying line, the main dosing line and the standby dosing line.
2. The PAC autophagy system of claim 1,
the feeding conveying line comprises a first conveying pipeline (3), a second conveying pipeline (4) and a third conveying pipeline (5), wherein a first input end of the first conveying pipeline (3) is communicated with the liquid PAC feeding system, an input end of the second conveying pipeline (4) is communicated to the first conveying pipeline (3), an input end of the third conveying pipeline (5) is communicated to an output end of the second conveying pipeline (4), and an output end of the third conveying pipeline (5) is communicated to an input end of the medicine storage tank (1);
the first pumping device (9) is arranged on the second conveying pipeline (4);
the conveying control mechanism comprises a first control valve (11) arranged on the first conveying pipeline (3) and used for controlling the on-off of a feeding channel of the liquid PAC feeding system, a second control valve (12) arranged on the second conveying pipeline (4) and used for controlling the on-off of a feeding pumping channel of the first pumping device (9), and a third control valve (13) arranged on the third conveying pipeline (5) and used for controlling the on-off of a PCA input channel of the medicine storage tank (1);
liquid PAC provided by a liquid PAC feeding system is pumped to the medicine storage tank (1) through a first conveying pipeline (3), a second conveying pipeline (4) and a third conveying pipeline (5) by a first pumping device (9).
3. The PAC autophagy system of claim 2,
the main dosing line comprises a first conveying pipeline (3), a second conveying pipeline (4), a fourth conveying pipeline (6) and an output pipeline (8), wherein the second input end of the first conveying pipeline (3) is communicated to the output end of the medicine storage tank (1), the input end of the fourth conveying pipeline (6) is communicated to the output end of the second conveying pipeline (4), the output end of the fourth conveying pipeline (6) is communicated to the input end of the auxiliary tank (2), the input end of the output pipeline (8) is communicated to the output end of the auxiliary tank (2), and the output end of the output pipeline (8) is communicated to a dosing port;
the conveying control mechanism also comprises a fourth control valve (14) which is arranged on the first conveying pipeline (3) and is used for controlling the on-off of the PAC output channel of the medicine storage tank (1), a fifth control valve (15) which is arranged on the fourth conveying pipeline (6) and is used for controlling the on-off of the PAC input channel of the auxiliary tank (2), and a sixth control valve (16) which is arranged on the output pipeline (8) and is used for controlling the on-off of the PAC output channel of the auxiliary tank (2);
the liquid PAC medicament in the medicament storage tank (1) is pumped into the auxiliary tank through the first conveying pipeline, the second conveying pipeline and the fourth conveying pipeline by the first pumping device (9), and then is fed into a water outlet of the oxidation ditch through the output pipeline.
4. The PAC autophagy system of claim 3,
the standby dosing line comprises a first conveying pipeline (3), a fifth conveying pipeline (7) and an output pipeline (8), wherein the input end of the fifth conveying pipeline (7) is communicated to the first conveying pipeline (3), and the output end of the fifth conveying pipeline is communicated to the output pipeline (8);
the second pumping device (10) is arranged on the fifth conveying pipeline (7);
the conveying control mechanism also comprises a seventh control valve (17) which is arranged on the fifth conveying pipeline (7) and is used for controlling the on-off of a feeding pumping channel of the second pumping device;
the liquid PAC medicament in the auxiliary tank (2) is directly pumped into an output pipeline (8) through a first conveying pipeline (3) and a fifth conveying pipeline (7) by a second pumping device (10) and then is added to a water outlet of the oxidation ditch.
5. The PAC autophagy system of claim 3 or 4,
the output pipeline (8) comprises an output main pipe connected with the auxiliary tank (2) and a plurality of output branch pipes respectively connected with the output main pipe and the feed ports of the water outlets of the oxidation ditch, and each output branch pipe is provided with an output control valve used for controlling the liquid PAC medicament in the output branch pipe to flow into the feed ports of the water outlets of the oxidation ditch.
6. The PAC autophagy system of claim 1,
the conveying control mechanism comprises a liquid level control device arranged in the auxiliary tank (2).
7. The PAC autophagy system of claim 1,
a plurality of mutually communicated medicine storage tanks (1) are connected with a liquid PAC medicine supply system through a first conveying pipeline (3) and are connected with an auxiliary tank (2) through a second conveying pipeline (4).
8. The PAC autophagy system of claim 1,
the total medicine storage quantity of the medicine storage tanks (1) is 15-25 times of that of the auxiliary tank (2).
9. The PAC autophagy system of claim 1,
the medicine storage tank (1) and the auxiliary tank (2) are both made of PE materials.
10. The PAC autophagy system of claim 1,
the first pumping device (9) is a centrifugal pump and the second pumping device (10) is a diaphragm metering pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020973940.XU CN212924511U (en) | 2020-06-01 | 2020-06-01 | PAC automatic reagent feeding system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020973940.XU CN212924511U (en) | 2020-06-01 | 2020-06-01 | PAC automatic reagent feeding system |
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| CN212924511U true CN212924511U (en) | 2021-04-09 |
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| CN202020973940.XU Active CN212924511U (en) | 2020-06-01 | 2020-06-01 | PAC automatic reagent feeding system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113894116A (en) * | 2021-10-18 | 2022-01-07 | 镇江伊博特环保科技有限公司 | Dosing device and aeration system with same |
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2020
- 2020-06-01 CN CN202020973940.XU patent/CN212924511U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113894116A (en) * | 2021-10-18 | 2022-01-07 | 镇江伊博特环保科技有限公司 | Dosing device and aeration system with same |
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