CN203476839U - Precise pressure difference type chemical feeding device - Google Patents
Precise pressure difference type chemical feeding device Download PDFInfo
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- CN203476839U CN203476839U CN201320568213.5U CN201320568213U CN203476839U CN 203476839 U CN203476839 U CN 203476839U CN 201320568213 U CN201320568213 U CN 201320568213U CN 203476839 U CN203476839 U CN 203476839U
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- elastic material
- hollow elastic
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Abstract
The utility model relates to a precise pressure difference type chemical feeding device, and belongs to water treatment chemical feeding devices. The precise pressure difference type chemical feeding device is mainly used for solving the technical problems that according to an existing chemical feeding device, the concentration of fed chemicals is uneven, and the dosage cannot be changed in proportion along with changes of the water flow. According to the technical scheme, the precise pressure difference type chemical feeding device comprises a chemical storage tank, a hollow elastic material bag body, throttling valves, flowmeters, a Venturi ejector, a high-concentration chemical box, a throttling device, control valves, an observation hole and connecting pipelines, wherein the hollow elastic material bag body is installed in the chemical storage tank, an inner cavity of the hollow elastic material bag body is a pressure-resistant elastic cavity, an upper portion connector of the hollow elastic material bag body extends out of the chemical storage tank, and a chemical storage cavity is formed between the outer surface of the hollow elastic material bag body and the inner surface of the chemical storage tank; the inner cavity of the hollow elastic material bag body is connected with the liquid inlet end of the throttling device through the upper portion connector, and a chemical inlet-and-outlet opening formed in the lower portion of the chemical storage cavity is connected with the liquid outlet end of the throttling device through the throttling valves and the flowmeters.
Description
Technical field
The utility model relates to the differential medicine adding device of a kind of precision, and it belongs to a kind of Water treatment medicine-adding equipment, also can be used for the fluid system that other needs dosing.
Background technique
Water treatment medicine is all generally to be realized by electric metering pump, and electric metering pump has multiple pattern; Because chemical feeding quantity is very little, and that metering pump discharge capacity cannot be manufactured is very little, thus be mostly pulsed injection mode, dosing pulsed filling in water, consequently water herb liquid concentration is periodic variation, even not.When the flow of water changes, electric metering pump chemical feeding quantity, not along with the flow of water changes and changes, is generally given dosing, and it is stable that adding consistency cannot keep.Requiring under explosion-proof environment, electric metering pump must be used anti-explosion motor, and Operation and Maintenance is complicated, and cost is very high.
Summary of the invention
The purpose of this utility model is that the adding consistency of the existing medicine adding device existence of solution is inhomogeneous, chemical feeding quantity can not change and the technical problem of proportional variation along with water flow, provides a kind of energy continuous precision small flow and chemical feeding quantity along with water flow changes and proportional variation and the differential medicine adding device of motorless precision.
The utility model is to solve the problems of the technologies described above the technological scheme adopting to be: accurate differential medicine adding device, comprise a medicine storing pot, a hollow elastic material utricule, two throttle valve, three flowmeters, a venturi liquid jetting device, dense medicine-chest, a flow controller, several control valves, peep hole and connecting pipeline, wherein: the in-built hollow elastic material utricule of described medicine storing pot, hollow elastic material utricule inner chamber is a withstand voltage flexible cavity, hollow elastic material utricule upper interface is stretched out medicine storing pot, between hollow elastic material utricule outer surface and medicine storing pot internal surface, form drug storage chamber, described hollow elastic material utricule inner chamber is connected with needing the liquid feeding end of the hydrodynamic pressure pipe throttle device of dosing by upper interface, and the in-out drug mouth that bottom, drug storage chamber arranges is connected with needing the outlet end of the hydrodynamic pressure pipe throttle device of dosing with first flowmeter by first throttle valve.
The medicine outlet of described dense medicine-chest is connected with the suction port of venturi liquid jetting device with second throttle valve by second flowmeter, the in-out drug mouth that bottom, drug storage chamber arranges is connected with the liquid outlet of venturi liquid jetting device by second control valve, the liquid entering hole of venturi liquid jetting device is connected with the liquid entering hole of the 4th control valve with first control valve by the 3rd flowmeter, and the 4th liquid outlet of control valve and the liquid feeding end of flow controller are connected.
The liquid feeding end of described flow controller and the pressure reduction between outlet end are 0.01～0.3MPa.
The drug storage chamber forming between described hollow elastic material utricule inner chamber and hollow elastic material utricule outer surface and medicine storing pot internal surface, the size conversion that both cavity volume can equivalent, the effect of two cavitys is also convertible.
Because the utility model has adopted technique scheme, solved that the adding consistency that existing medicine adding device exists is inhomogeneous, chemical feeding quantity can not change and the technical problem of proportional variation along with water flow.Realized accurate small flow to injection in water treatment pressure piping, along with the changes in flow rate of water treatment pressure piping, directly proportional changes chemical feeding quantity simultaneously.Therefore, compare with background technique, along with the changes in flow rate of water treatment pressure piping, directly proportional changes and does not need the advantages such as electricity and other power source to injection in water treatment pressure piping, chemical feeding quantity to the utlity model has accurate small flow.
The utility model is mainly used in without under electricity and explosion-proof work condition environment, is a kind of highi degree of accuracy medicine machine, is also a kind of energy-saving medicine machine.Can be used for the industries such as water treatment, agricultural, chemical industry, medicine, food.
Accompanying drawing explanation
Accompanying drawing is structural representation of the present utility model.
Embodiment
As shown in drawings, the differential medicine adding device of precision in the present embodiment, comprise a medicine storing pot 1, a hollow elastic material utricule 2, two throttle valve 3, 6, three flowmeters 4, 5, 8, a venturi liquid jetting device 7, dense medicine-chest 9, a flow controller 10, several control valves 11, 12, 13, 14, 15, peep hole 16 and connecting pipeline, wherein: the in-built hollow elastic material utricule 2 of described medicine storing pot 1, hollow elastic material utricule 2 inner chambers are a withstand voltage flexible cavity, hollow elastic material utricule 2 upper interface are stretched out medicine storing pot 1, between hollow elastic material utricule 2 outer surfaces and medicine storing pot 1 internal surface, form drug storage chamber, described hollow elastic material utricule 2 inner chambers are connected with needing the liquid feeding end of the hydrodynamic pressure pipe throttle device 10 of dosing by upper interface, and the in-out drug mouth that bottom, drug storage chamber arranges is connected with needing the outlet end of the hydrodynamic pressure pipe throttle device 10 of dosing with first flowmeter 4 by first throttle valve 3.Peep hole 16 is contained on the outer surface of medicine storing pot 1.The medicine outlet of described dense medicine-chest 9 is connected with the suction port of venturi liquid jetting device 7 with second throttle valve 6 by second flowmeter 5, the in-out drug mouth that bottom, drug storage chamber arranges is connected with the liquid outlet of venturi liquid jetting device 7 by second control valve 12, the liquid entering hole of venturi liquid jetting device 7 is connected with the liquid entering hole of the 4th control valve 14 with first control valve 11 by the 3rd flowmeter 8, and the liquid outlet of the 4th control valve 14 is connected with the liquid feeding end of flow controller 10.The 4th control valve 14 is sequentially contained in and needs on the hydrodynamic pressure of dosing pipeline with flow controller 10.The 3rd control valve 13 is connected with the air outlet that top, drug storage chamber arranges, and discharges the gas in drug storage chamber when needing.Hollow elastic material utricule 2 inner chamber upper interface are also connected with the 5th control valve 15.The liquid feeding end of described flow controller 10 and the pressure reduction between outlet end are 0.05MPa, and also have identical pressure reduction between its hollow elastic material utricule 2 inner chambers that communicate and drug storage chamber.The drug storage chamber forming between described hollow elastic material utricule 2 inner chambers and hollow elastic material utricule 2 outer surfaces and medicine storing pot 1 internal surface, both cavity volume can equivalent size conversion, the effect of two cavitys is also convertible, and hollow elastic material utricule 2 inner chambers also can be used as drug storage chamber.
The liquid feeding end of the flow controller 10 in above-described embodiment and the pressure reduction between outlet end can also be selected arbitrarily between 0.01～0.3MPa.
Working principle of the present utility model is:
When liquid injects in Water treatment pressure solenoid road, between flow controller 10 liquid in-out ends, there is a small pressure reduction, there is identical pressure reduction with the inner chamber of its hollow elastic material utricule 2 communicating and the drug storage chamber of medicine storing pot 1, at this differential pressure action, the press water of flow controller 10 liquid feeding ends enters in hollow elastic material utricule 2 inner chambers through pipeline, hollow elastic material utricule 2 inner chambers expand along with entering of press water, liquid in extruding medicine storing pot 1 drug storage chamber enters flow controller 10 outlet ends by throttle valve 3 and flowmeter 4 by pipeline, the dosing of feedwater processing pressure pipeline.Throttle valve 3 regulates injection amount, and flowmeter 4 shows injection amount, and flow can be little of 1ml/min.
When the dense liquid in dense medicine-chest 9 injects medicine storing pot 1, water treatment pressure piping is connected by first and second control valve 11,12 in the drug storage chamber of medicine storing pot 1, then close the 4th control valve 14, opening the 5th control valve 15 makes hollow elastic material utricule 2 inner chambers connect atmosphere release, press water injects dense liquid in the drug storage chamber of medicine storing pot 1 through second flowmeter 5 and second throttle valve 6 by flowmeter 8 and venturi liquid jetting device 7 by preset proportion, corresponding the diminishing of hollow elastic material utricule 2 inner chambers.
Claims (4)
1. the differential medicine adding device of precision, comprise a medicine storing pot (1), a hollow elastic material utricule (2), two throttle valve (3, 6), three flowmeters (4, 5, 8), a venturi liquid jetting device (7), dense medicine-chest (9), a flow controller (10), several control valves (11, 12, 13, 14, 15), peep hole (16) and connecting pipeline, it is characterized in that: the in-built hollow elastic material utricule (2) of described medicine storing pot (1), hollow elastic material utricule (2) inner chamber is a withstand voltage flexible cavity, hollow elastic material utricule (2) upper interface is stretched out medicine storing pot (1), between hollow elastic material utricule (2) outer surface and medicine storing pot (1) internal surface, form drug storage chamber, described hollow elastic material utricule (2) inner chamber is connected with needing the liquid feeding end of the hydrodynamic pressure pipe throttle device (10) of dosing by upper interface, and the in-out drug mouth that bottom, drug storage chamber arranges is connected with needing the outlet end of the hydrodynamic pressure pipe throttle device (10) of dosing with first flowmeter (4) by first throttle valve (3).
2. the differential medicine adding device of precision according to claim 1, it is characterized in that: the medicine outlet of described dense medicine-chest (9) is connected with the suction port of venturi liquid jetting device (7) with second throttle valve (6) by second flowmeter (5), the in-out drug mouth that bottom, drug storage chamber arranges is connected with the liquid outlet of venturi liquid jetting device (7) by second control valve (12), the liquid entering hole of venturi liquid jetting device (7) is connected with the liquid entering hole of the 4th control valve (14) with first control valve (11) by the 3rd flowmeter (8), the liquid outlet of the 4th control valve (14) is connected with the liquid feeding end of flow controller (10).
3. the differential medicine adding device of precision according to claim 1 and 2, is characterized in that: the liquid feeding end of described flow controller (10) and the pressure reduction between outlet end are 0.01～0.3MPa.
4. the differential medicine adding device of precision according to claim 1 and 2, it is characterized in that: the drug storage chamber forming between described hollow elastic material utricule (2) inner chamber and hollow elastic material utricule (2) outer surface and medicine storing pot internal surface (1), both cavity volume can equivalent size conversion, the effect of two cavitys is also convertible.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320568213.5U CN203476839U (en) | 2013-09-13 | 2013-09-13 | Precise pressure difference type chemical feeding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320568213.5U CN203476839U (en) | 2013-09-13 | 2013-09-13 | Precise pressure difference type chemical feeding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203476839U true CN203476839U (en) | 2014-03-12 |
Family
ID=50225175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320568213.5U Withdrawn - After Issue CN203476839U (en) | 2013-09-13 | 2013-09-13 | Precise pressure difference type chemical feeding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203476839U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452915A (en) * | 2013-09-13 | 2013-12-18 | 侯康生 | Precise differential pressure type dosing device |
-
2013
- 2013-09-13 CN CN201320568213.5U patent/CN203476839U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452915A (en) * | 2013-09-13 | 2013-12-18 | 侯康生 | Precise differential pressure type dosing device |
| CN103452915B (en) * | 2013-09-13 | 2016-01-06 | 侯玥 | Precise differential pressure type medicine adding device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140312 Effective date of abandoning: 20160106 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140312 Effective date of abandoning: 20160106 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |