CN216512910U - Metering and dosing system - Google Patents
Metering and dosing system Download PDFInfo
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- CN216512910U CN216512910U CN202122467258.0U CN202122467258U CN216512910U CN 216512910 U CN216512910 U CN 216512910U CN 202122467258 U CN202122467258 U CN 202122467258U CN 216512910 U CN216512910 U CN 216512910U
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Abstract
The utility model discloses a metering and dosing system.A first metering pump has an inlet end connected with an inlet pipeline, a second metering pump has an inlet end connected with the inlet pipeline, and a third metering pump has an inlet end connected with the inlet pipeline; the flow calibration column is connected with an inlet pipeline; the first conveying branch is connected with the outlet end of the first metering pump, the second conveying branch is connected with the outlet end of the second metering pump, the third conveying branch is connected with the outlet end of the third metering pump, the first conveying branch, the second conveying branch and the third conveying branch are connected to an outlet pipeline together, the diaphragm pressure gauge is connected with the outlet pipeline, the pulsation damper is connected with the outlet pipeline, and the electromagnetic flowmeter is connected with the outlet pipeline. The utility model can realize two purposes of one standby, one standby and two standby, and mutual standby among pumps, realizes the purpose of adjusting the flow by adjusting the frequency of each pump through frequency conversion, realizes the requirement of large-range flow control, and can realize accurate control of the dosage by the electromagnetic flowmeter.
Description
Technical Field
The utility model belongs to the technical field of water treatment, and particularly relates to a metering and dosing system.
Background
In the water purification treatment process, the medicine needs to be added according to the accuracy, the time and the quantity, so as to inhibit the growth and the propagation of microorganisms, fungi and algae in the feed water.
The current dosing equipment only uses one dosing pump to realize the purpose of dosing after being electrically connected with electricity, and when the dosing pump breaks down, the dosing pump can only be stopped for maintenance, and continuous work cannot be realized. The dosage of the metered medicament can only be estimated according to the specification of the pump and the dosing time, and the accurate dosing amount cannot be obtained; different medicaments cannot be added by the same pump, and only can be added by replacing the pump; the dosage range is limited only by the rated flow of the metering pump, the adjusting range is small, and the requirements of multiple working conditions cannot be met.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model provides a metering dosing system, which solves the problems that the traditional dosing system cannot work continuously, has poor accuracy, cannot meet the requirements of multiple medicaments for general use and has a small adjustable range.
The technical scheme for solving the technical problems is as follows: a metering and dosing system comprises an inlet pipeline, a first metering pump, a second metering pump, a third metering pump, a flow calibration column, a first conveying branch, a second conveying branch, a third conveying branch, an outlet pipeline, a diaphragm pressure gauge, a pulsation damper and an electromagnetic flowmeter; the inlet end of the first metering pump is connected with the inlet pipeline, the inlet end of the second metering pump is connected with the inlet pipeline, and the inlet end of the third metering pump is connected with the inlet pipeline; the flow calibration column is connected with the inlet pipeline;
the first conveying branch is connected with the outlet end of the first metering pump, the second conveying branch is connected with the outlet end of the second metering pump, the third conveying branch is connected with the outlet end of the third metering pump, the first conveying branch, the second conveying branch and the third conveying branch are connected to the outlet pipeline, the diaphragm pressure gauge is connected with the outlet pipeline, the pulsation damper is connected with the outlet pipeline, and the electromagnetic flowmeter is connected with the outlet pipeline.
As the preferable scheme of the metering and dosing system, the metering and dosing system further comprises a dosing tank body, wherein a first support, a second support and a third support are arranged inside the dosing tank body, the first metering pump is connected with the first support, the second metering pump is connected with the second support, and the third metering pump is connected with the third support.
As a preferable scheme of the metering and dosing system, the first conveying branch is connected with a first pressure relief branch, the second conveying branch is connected with a second pressure relief branch, and the third conveying branch is connected with a third pressure relief branch;
the first pressure relief branch, the second pressure relief branch and the third pressure relief branch are connected with a pressure relief main pipeline together.
As a preferable scheme of the metering and dosing system, the first pressure relief branch is connected with a first backpressure valve and a first safety valve, the second pressure relief branch is connected with a second backpressure valve and a second safety valve, and the third pressure relief branch is connected with a third backpressure valve and a third safety valve.
As the preferred scheme of the metering and dosing system, the first conveying branch is connected with a first ball valve, the second conveying branch is connected with a second ball valve, and the third conveying branch is connected with a third ball valve.
As a preferable scheme of the metering and dosing system, the outlet pipeline is connected with a fourth backpressure valve and a fourth safety valve.
As the preferable scheme of the metering and dosing system, a fourth ball valve is connected between the diaphragm pressure gauge and the outlet pipeline, and a fifth ball valve is connected between the pulsation damper and the outlet pipeline.
As the preferable scheme of the metering and dosing system, a sixth ball valve is connected between the flow calibration column and the inlet pipeline.
As the preferable scheme of the metering and dosing system, the surface of the dosing box body is connected with a flow meter head, and the flow meter head is connected with the electromagnetic flow meter.
The utility model is provided with an inlet pipeline, a first metering pump, a second metering pump, a third metering pump, a flow calibration column, a first conveying branch, a second conveying branch, a third conveying branch, an outlet pipeline, a diaphragm pressure gauge, a pulsation damper and an electromagnetic flowmeter; the inlet end of the first metering pump is connected with an inlet pipeline, the inlet end of the second metering pump is connected with an inlet pipeline, and the inlet end of the third metering pump is connected with an inlet pipeline; the flow calibration column is connected with an inlet pipeline; the first conveying branch is connected with the outlet end of the first metering pump, the second conveying branch is connected with the outlet end of the second metering pump, the third conveying branch is connected with the outlet end of the third metering pump, the first conveying branch, the second conveying branch and the third conveying branch are connected to an outlet pipeline, the diaphragm pressure gauge is connected with the outlet pipeline, the pulsation damper is connected with the outlet pipeline, and the electromagnetic flowmeter is connected with the outlet pipeline. The utility model can realize two purposes of one standby, one standby and two standby, and mutual standby among pumps, realize the purpose of adjusting the flow by adjusting the frequency of each pump through frequency conversion, realize the requirement of large-range flow control, and the electromagnetic flowmeter can realize accurate control of the dosage.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.
FIG. 1 is a schematic structural view of a dosing system provided in an embodiment of the present invention;
fig. 2 is a schematic structural view of another view-angle dosing system provided in the embodiment of the present invention.
In the figure, 1, an inlet pipeline; 2. a first metering pump; 3. a second metering pump; 4. a third metering pump; 5. a flow calibration column; 6. a first conveying branch; 7. a second conveying branch; 8. a third conveying branch; 9. an outlet line; 10. a diaphragm pressure gauge; 11. a pulsation damper; 12. an electromagnetic flow meter; 13. a first bracket; 14. a second bracket; 15. a third support; 16. a first pressure relief shunt; 17. a second pressure relief shunt; 18. a third pressure relief shunt; 19. a pressure relief main pipeline; 20. a first back pressure valve; 21. a first safety valve; 22. a second back pressure valve; 23. a second relief valve; 24. a third back pressure valve; 25. a third relief valve; 26. a first ball valve; 27. a second ball valve; 28. a third ball valve; 29. a fourth back pressure valve; 30. a fourth relief valve; 31. a fourth ball valve; 32. a fifth ball valve; 33. a sixth ball valve; 34. a medicine adding box body.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 and 2, a metering and dosing system is provided, which comprises an inlet pipeline 1, a first metering pump 2, a second metering pump 3, a third metering pump 4, a flow calibration column 5, a first conveying branch 6, a second conveying branch 7, a third conveying branch 8, an outlet pipeline 9, a diaphragm pressure gauge 10, a pulsation damper 11 and an electromagnetic flowmeter 12; the inlet end of the first metering pump 2 is connected with the inlet pipeline 1, the inlet end of the second metering pump 3 is connected with the inlet pipeline 1, and the inlet end of the third metering pump 4 is connected with the inlet pipeline 1; the flow calibration column 5 is connected with the inlet pipeline 1;
first transport branch road 6 is connected the exit end of first measuring pump 2, the second is carried branch road 7 and is connected the exit end of second measuring pump 3, branch road 8 is connected to the third is carried the exit end of third measuring pump 4, first transport branch road 6, second are carried branch road 7 and third and are carried branch road 8 and be connected to jointly outlet line 9, diaphragm pressure gauge 10 connects outlet line 9, pulsation damper 11 connects outlet line 9, electromagnetic flowmeter 12 connects outlet line 9.
In this embodiment, the device further includes a dosing box 34, a first support 13, a second support 14 and a third support 15 are arranged inside the dosing box 34, the first metering pump 2 is connected to the first support 13, the second metering pump 3 is connected to the second support 14, and the third metering pump 4 is connected to the third support 15.
Concretely, add medicine box 34 and can be to inside first measuring pump 2, second measuring pump 3, third measuring pump 4, flow calibration post 5, first transport branch road 6, branch road 7 is carried to the second, branch road 8 is carried to the third, outlet pipeline 9, diaphragm pressure gauge 10, pulsation damper 11 and electromagnetic flowmeter 12 play the guard action, simultaneously, can clearly see the inside running state of equipment through the transparent door that adds medicine box 34, protect through adding medicine box 34, avoided because of the security problem that the leakage leads to.
Specifically, the utility model uses acid-resistant and alkali-resistant pipe fittings to replace conventional pipe fittings, and adopts PVDF material for sealing pumps, valves and the like, so that the utility model can resist strong acid and strong alkali, thereby meeting the requirement that various medicaments (PAM, PFS, hydrochloric acid, scale inhibitor, reducing agent, bactericide and the like) can be pumped.
In this embodiment, the first conveying branch 6 is connected to a first pressure relief branch 16, the second conveying branch 7 is connected to a second pressure relief branch 17, and the third conveying branch 8 is connected to a third pressure relief branch 18; the first pressure relief branch 16, the second pressure relief branch 17 and the third pressure relief branch 18 are connected with a pressure relief main line 19. A first back pressure valve 20 and a first safety valve 21 are connected to the first pressure relief branch 16, a second back pressure valve 22 and a second safety valve 23 are connected to the second pressure relief branch 17, and a third back pressure valve 24 and a third safety valve 25 are connected to the third pressure relief branch 18.
Specifically, in the process of operating the first metering pump 2, if meet the external resistance of the system, in order to protect the system, the first safety valve 21 through the first pressure relief branch 16 is decompressed, in the process of operating the second metering pump 3, if meet the external resistance of the system, in order to protect the system, the second safety valve 23 through the second pressure relief branch 17 is decompressed, in the process of operating the third metering pump 4, if meet the external resistance of the system, in order to protect the system, the third safety valve 25 through the third pressure relief branch 18 is decompressed, and the whole system pipeline and components can be effectively protected.
In this embodiment, the first conveying branch 6 is connected to a first ball valve 26, the second conveying branch 7 is connected to a second ball valve 27, and the third conveying branch 8 is connected to a third ball valve 28. A fourth back pressure valve 29 and a fourth relief valve 30 are connected to the outlet line 9.
Specifically, on-off control of the first conveying branch 6 is realized through a first ball valve 26, on-off control of the second conveying branch 7 is realized through a second ball valve 27, on-off control of the third conveying branch 8 is realized through a third ball valve 28, and on-off control of the outlet pipeline 9 is realized through a fourth back pressure valve 29 and a fourth safety valve 30.
In this embodiment, a fourth ball valve 31 is connected between the diaphragm pressure gauge 10 and the outlet pipeline 9, and a fifth ball valve 32 is connected between the pulsation damper 11 and the outlet pipeline 9.
Specifically, the use control of the diaphragm pressure gauge 10 is realized through the fourth ball valve 31, and the diaphragm pressure gauge 10 can observe the pipeline pressure in real time. The fifth ball valve 32 is used for controlling the pulsation damper 11, and the pulsation damper 11 can effectively reduce the flow and pressure pulse in the pipeline caused in the operation process of the metering pump, so that the flow and pressure at the outlet of the system are stable.
In this embodiment, a sixth ball valve 33 is connected between the flow calibration column 5 and the inlet pipeline 1. The use control of the flow calibration column 5 is realized through the sixth ball valve 33, and the metering accuracy of the metering pump can be calibrated through the flow calibration column 5.
In this embodiment, the surface of the chemical adding box 34 is connected with a flow meter head, and the flow meter head is connected with the electromagnetic flow meter 12. The liquid flow of the outlet pipeline 9 can be accurately measured through the electromagnetic flowmeter 12, signals can be transmitted to a remote controller through a flowmeter head, and the dosage of the system can be effectively mastered through a remote control panel.
In summary, the utility model is provided with an inlet pipeline 1, a first metering pump 2, a second metering pump 3, a third metering pump 4, a flow calibration column 5, a first conveying branch 6, a second conveying branch 7, a third conveying branch 8, an outlet pipeline 9, a diaphragm pressure gauge 10, a pulsation damper 11 and an electromagnetic flowmeter 12; the inlet end of the first metering pump 2 is connected with the inlet pipeline 1, the inlet end of the second metering pump 3 is connected with the inlet pipeline 1, and the inlet end of the third metering pump 4 is connected with the inlet pipeline 1; the flow calibration column 5 is connected with the inlet pipeline 1; the outlet end of first measuring pump 2 is connected to first branch of carrying 6, and the outlet end of second measuring pump 3 is connected to second branch of carrying 7, and the outlet end of third measuring pump 4 is connected to third branch of carrying 8, and first branch of carrying 6, second branch of carrying 7 and third branch of carrying 8 are connected to outlet pipe 9 jointly, and outlet pipe 9 is connected to diaphragm pressure gauge 10, and outlet pipe 9 is connected to pulsation damper 11, and outlet pipe 9 is connected to electromagnetic flowmeter 12. The external medicament of the system of the utility model enters a first metering pump 2, a second metering pump 3 and a third metering pump 4 by three paths through an inlet pipeline 1, is respectively pumped to an outlet pipeline 9 by the first metering pump 2, the second metering pump 3 and the third metering pump 4, is connected with external equipment of the system by the outlet pipeline 9 and is conveyed to other systems. In the process of operating the first metering pump 2, if meet the external resistance of the system, in order to protect the system, carry out the pressure relief through the first relief valve 21 of the first pressure relief shunt 16, in the process of operating the second metering pump 3, if meet the external resistance of the system, in order to protect the system, carry out the pressure relief through the second relief valve 23 of the second pressure relief shunt 17, in the process of operating the third metering pump 4, if meet the external resistance of the system, in order to protect the system, carry out the pressure relief through the third relief valve 25 of the third pressure relief shunt 18, can effectively protect whole system pipeline and parts. The on-off control of the first conveying branch 6 is realized through a first ball valve 26, the on-off control of the second conveying branch 7 is realized through a second ball valve 27, the on-off control of the third conveying branch 8 is realized through a third ball valve 28, and the on-off control of the outlet pipeline 9 is realized through a fourth backpressure valve 29 and a fourth safety valve 30. The use control of the diaphragm pressure gauge 10 is realized through the fourth ball valve 31, and the diaphragm pressure gauge 10 can observe the pipeline pressure in real time. The fifth ball valve 32 is used for controlling the pulsation damper 11, and the pulsation damper 11 can effectively reduce the flow and pressure pulse in the pipeline caused in the operation process of the metering pump, so that the flow and pressure at the outlet of the system are stable. The use control of the flow calibration column 5 is realized through the sixth ball valve 33, and the metering accuracy of the metering pump can be calibrated through the flow calibration column 5. The liquid flow of the outlet pipeline 9 can be accurately measured through the electromagnetic flowmeter 12, signals can be transmitted to a remote controller through a flowmeter head, and the dosage of the system can be effectively mastered through a remote control panel. The first metering pump 2, the second metering pump 3 and the third metering pump 4 can only start one other two standby pumps, or start two standby pumps, one standby pump or three standby pumps simultaneously, and realize a large flow control range by controlling pipelines through ball valves, thereby meeting the requirements of multiple working conditions.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (9)
1. A metering and dosing system is characterized by comprising an inlet pipeline (1), a first metering pump (2), a second metering pump (3), a third metering pump (4), a flow calibration column (5), a first conveying branch (6), a second conveying branch (7), a third conveying branch (8), an outlet pipeline (9), a diaphragm pressure gauge (10), a pulsation damper (11) and an electromagnetic flowmeter (12); the inlet end of the first metering pump (2) is connected with the inlet pipeline (1), the inlet end of the second metering pump (3) is connected with the inlet pipeline (1), and the inlet end of the third metering pump (4) is connected with the inlet pipeline (1); the flow calibration column (5) is connected with the inlet pipeline (1);
the utility model discloses a metering pump, including first conveying branch road (6) and third conveying branch road (8), first measuring pump (2) exit end is connected in first conveying branch road (6), the second is carried branch road (7) and is connected the exit end of second measuring pump (3), branch road (8) are connected to the third is carried to the third exit end of third measuring pump (4), first conveying branch road (6), second are carried branch road (7) and third and are carried branch road (8) and connect jointly to outlet pipeline (9), diaphragm pressure gauge (10) are connected outlet pipeline (9), pulsation damper (11) are connected outlet pipeline (9), electromagnetic flowmeter (12) are connected outlet pipeline (9).
2. The metering and dosing system according to claim 1, further comprising a dosing tank (34), wherein a first bracket (13), a second bracket (14) and a third bracket (15) are arranged inside the dosing tank (34), the first metering pump (2) is connected with the first bracket (13), the second metering pump (3) is connected with the second bracket (14), and the third metering pump (4) is connected with the third bracket (15).
3. The metering and dosing system according to claim 2, wherein the first delivery branch (6) is connected with a first pressure relief branch (16), the second delivery branch (7) is connected with a second pressure relief branch (17), and the third delivery branch (8) is connected with a third pressure relief branch (18);
the first pressure relief branch (16), the second pressure relief branch (17) and the third pressure relief branch (18) are connected with a pressure relief main pipeline (19) together.
4. A dosing system according to claim 3, characterized in that a first back pressure valve (20) and a first safety valve (21) are connected to the first pressure relief branch (16), a second back pressure valve (22) and a second safety valve (23) are connected to the second pressure relief branch (17), and a third back pressure valve (24) and a third safety valve (25) are connected to the third pressure relief branch (18).
5. The dosing system according to claim 4, wherein the first delivery branch (6) is connected to a first ball valve (26), the second delivery branch (7) is connected to a second ball valve (27), and the third delivery branch (8) is connected to a third ball valve (28).
6. Dosing system according to claim 5, characterized in that a fourth back pressure valve (29) and a fourth safety valve (30) are connected to the outlet line (9).
7. The dosing system according to claim 6, wherein a fourth ball valve (31) is connected between the diaphragm pressure gauge (10) and the outlet line (9), and a fifth ball valve (32) is connected between the pulsation damper (11) and the outlet line (9).
8. The dosing system according to claim 7, wherein a sixth ball valve (33) is connected between the flow calibration column (5) and the inlet line (1).
9. The metering and dosing system according to claim 2, wherein a flow meter head is connected to the surface of the dosing tank (34), and the flow meter head is connected to the electromagnetic flow meter (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122467258.0U CN216512910U (en) | 2021-10-13 | 2021-10-13 | Metering and dosing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122467258.0U CN216512910U (en) | 2021-10-13 | 2021-10-13 | Metering and dosing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216512910U true CN216512910U (en) | 2022-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122467258.0U Active CN216512910U (en) | 2021-10-13 | 2021-10-13 | Metering and dosing system |
Country Status (1)
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|---|---|
| CN (1) | CN216512910U (en) |
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2021
- 2021-10-13 CN CN202122467258.0U patent/CN216512910U/en active Active
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