CN206847703U - A kind of metering device based on dual circuit - Google Patents
A kind of metering device based on dual circuit Download PDFInfo
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- CN206847703U CN206847703U CN201720553781.6U CN201720553781U CN206847703U CN 206847703 U CN206847703 U CN 206847703U CN 201720553781 U CN201720553781 U CN 201720553781U CN 206847703 U CN206847703 U CN 206847703U
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- elastic hose
- metering device
- return duct
- push away
- dual circuit
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Abstract
The utility model discloses a kind of metering device based on dual circuit, including the elastic hose flowed through for fluid and push away roller structure, the elastic hose is in shape in parallel with return duct, the both ends of the elastic hose connect with return duct, the inlet and outlet of the elastic hose is respectively arranged with import pressure pipe structure and outlet pressure pipe structure, be provided with return duct pressure pipe structure on the return duct, it is described push away roller structure and press against elastic hose all the time move back and forth.The utility model has the advantages that principle is simple, cost is cheap, precision is high.
Description
Technical field
The utility model is mainly concerned with fluid metering technical field, refer in particular to it is a kind of suitable for fluid based on dual circuit
Metering device.
Background technology
With the development of technology, many special industries are to the precision of metering and the requirement more and more higher of cleanliness factor, for example give birth to
Thing pharmaceutical industry, medical industry, chemical industry etc..At present, when convection body carries out accurate measurement, typically using plunger pump, compacted
Dynamic pump technology.But existing way still has some shortcomings, so as to largely effect on the accuracy of metering.Existing deficiency just exists
In：
Directly contacted 1. existing plunger pump has with fluid at work, while friction between plunger meeting and the pump housing be present,
This is easy for caused particulate being mixed among fluid, and cleans inconvenience.
Although 2. existing peristaltic pump can solve hygienic issues, but because the metering total amount of rotary peristaltic pump is
Roll and complete by roller multi-turn, measuring accuracy is poor, typically 2% or so.Meanwhile roller ceaselessly rolls on elastic hose
Dynamic, the damage to flexible pipe is larger.And existing straight line peristaltic pump precision is higher, but acted using linear reciprocal, pressure flexible pipe promotes
Roller power lifting is required in each working cycles and is declined so that the power of whole raising and lowering be required for
And move reciprocatingly, thus it is complicated, and stability is poor.
Utility model content
The technical problems to be solved in the utility model is that：It is new for technical problem existing for prior art, this practicality
A kind of principle of type offer is simple, cost is cheap, the high metering device based on dual circuit of precision.
In order to solve the above technical problems, the utility model uses following technical scheme：
A kind of metering device based on dual circuit, including supply the elastic hose that fluid flows through and push away roller structure, the elasticity
Flexible pipe is in shape in parallel with return duct, and the both ends of the elastic hose connect with return duct, the inlet and outlet of the elastic hose
Import pressure pipe structure and outlet pressure pipe structure are respectively arranged with, return duct pressure pipe structure is provided with the return duct, it is described to push away
Roller structure press against elastic hose and moves back and forth all the time.
Further improvement as the utility model device：The elastic hose is installed in fixed seat.
Further improvement as the utility model device：The elastic hose and return duct pass through three-way connection parallel connection cloth
Put.
Further improvement as the utility model device：It is described to push away roller structure, import pressure pipe structure, return duct tube press machine
Structure, outlet pressure pipe structure are connected with driving part；Each mechanism is by the way of linkage, or uses the side independently driven
Formula.
Further improvement as the utility model device：The curve movement for pushing away roller structure is straight line or circular arc.
The utility model further provides for a kind of metering device based on dual circuit, including the elastic hose for supplying fluid to flow through
With push away roller structure, the elastic hose is in shape in parallel with return duct, and the both ends of the elastic hose connect with return duct, the bullet
The inlet and outlet of property flexible pipe is respectively arranged with inlet control valve and discharge control valve, and backflow management and control is provided with the return duct
Valve processed, it is described push away roller structure and press against elastic hose all the time move back and forth.
Further improvement as the utility model device：The elastic hose is installed in fixed seat.
Further improvement as the utility model device：The elastic hose and return duct pass through three-way connection parallel connection cloth
Put.
Further improvement as the utility model device：The roller structure that pushes away is connected with driving part.
Further improvement as the utility model device：The curve movement for pushing away roller structure is straight line or circular arc.
Compared with prior art, the utility model has the advantage of：Metering device of the present utility model based on dual circuit,
Principle is simple, cost is cheap, precision is high, and roller once promotes the whole metering of completion, measuring accuracy height；And roller need not lift,
Structure is simpler, and stability is good.For elastic hose, geo-stationary or only very small displacement, to bullet
The damage of property flexible pipe is small.
Brief description of the drawings
Fig. 1 is that the utility model implements the principle schematic diagram in 1 in concrete application.
Fig. 2 is that the utility model is implemented to be in the schematic diagram of return state in 1 in concrete application.
Fig. 3 is that the utility model implements the principle schematic diagram in 2 in concrete application.
Marginal data：
1st, import pressure pipe structure；2nd, return duct pressure pipe structure；3rd, roller structure is pushed away；4th, fixed seat；5th, elastic hose；6th, flow back
Pipe；7th, fluid；8th, three-way connection；9th, pressure pipe structure is exported；10th, inlet control valve；11st, reflux tube valve；12nd, control of export
Valve.
Embodiment
The utility model is described in further details below with reference to Figure of description and specific embodiment.
Embodiment 1：As shown in Fig. 1~Fig. 2, the utility model further provides for a kind of metering device based on dual circuit,
Including：Import pressure pipe structure 1, return duct pressure pipe structure 2, push away roller structure 3, fixed seat 4, elastic hose 5, return duct 6 and outlet
Pressure pipe structure 9；Wherein, elastic hose 5 and return duct 6 are arranged in parallel by three-way connection 8, form loop.Elastic hose 5 enters
Mouth and outlet are respectively arranged with import pressure pipe structure 1 and outlet pressure pipe structure 9, and return duct pressure pipe structure is provided with return duct 6
2.Push away roller structure 3 and press against working elastic flexible pipe 5 all the time and move back and forth, its curve movement can be straight line, circular arc or its
His specific curves.Push away roller structure 3, import pressure pipe structure 1, return duct pressure pipe structure 2, outlet pressure pipe structure 9 and driving part
It is connected, the driving part can also be used and be driven respectively by the way of linkage according to selection, each mechanism is actually needed
Dynamic mode.
During concrete application, elastic hose 5 is installed in fixed seat 4.
During work, loop pressure pipe structure 2 pushes first, presses return duct 6, while import pressure pipe structure 1 and outlet pressure pipe
Lifted in mechanism 9, make to keep connection between the inlet and outlet of elastic hose 5；Then, push away roller structure 3 to move toward export direction, row
The fluid 7 gone out in elastic hose 5.Next, lifted on loop pressure pipe structure 2, while import pressure pipe structure 1 and outlet pressure pipe structure
9 push, and make to be in cut-off state between the inlet and outlet of elastic hose 5, are in and connect between return duct 6 and elastic hose 5
State forms home loop；Then, push away roller structure 3 to move toward the import direction of elastic hose 5, return to initial position, complete one
Individual working cycles, wait next working cycles.In above process, it is that elastic hose 5 elastic deformation of itself is formed very
Suction enters fluid 7, forms the principle similar to existing peristaltic pump, that is, make use of the original of elastic hose 5 itself suction fluid 7
Reason.
Embodiment 2：As shown in figure 3, the utility model further provides for a kind of metering device based on dual circuit, including：
Inlet control valve 10, reflux tube valve 11, push away roller structure 3, fixed seat 4, elastic hose 5, return duct 6 and discharge control valve
12；Wherein, elastic hose 5 and return duct 6 are arranged in parallel by three-way connection 8, form loop.The import of elastic hose 5 and go out
Mouth is respectively arranged with inlet control valve 10 and discharge control valve 12, and reflux tube valve 11 is provided with return duct 6.Push away roller structure
3 press against working elastic flexible pipe 5 all the time moves back and forth, and its curve movement can be straight line, circular arc or other specific curves.
Push away roller structure 3 with driving part to be connected, the driving part is according to being actually needed selection.
During concrete application, elastic hose 5 is installed in fixed seat 4.
During concrete application, inlet control valve 10, reflux tube valve 11, discharge control valve 12 can according to be actually needed come
Selection, check valve or other kinds of valve body structure such as are used, all should be new in this practicality as long as disclosure satisfy that control needs
Within the protection domain of type.
During work, reflux tube valve 11 is closed first, presses return duct 6, while inlet control valve 10 and control of export
Valve 12 is opened, and makes to keep connection between the inlet and outlet of elastic hose 5；Then, push away roller structure 3 to move toward export direction, row
The fluid 7 gone out in elastic hose 5.Next, reflux tube valve 11 is opened, while inlet control valve 10 and discharge control valve 12
Close, make to be in cut-off state between the inlet and outlet of elastic hose 5, connected state is between return duct 6 and elastic hose 5
State forms home loop；Then, push away roller structure 3 to move toward the import direction of elastic hose 5, return to initial position, complete one
Working cycles, wait next working cycles.In above process, it is the elastic deformation formation vacuum of elastic hose 5 itself
Fluid 7 is sucked, forms the principle similar to existing peristaltic pump, that is, make use of the principle of elastic hose 5 itself suction fluid 7.
From the foregoing, it will be observed that the method performed by said structure of the present utility model is：Fluid 7 is allowed to be flowed in elastic hose 5,
Control arranged direction of the cut off of elastic hose 5 along elastic hose 5 to move back and forth, arrange one end in elastic hose 5
Go out fluid while other end suction fluid 7；The elastic hose 5 flowed through for fluid 7 is set, and elastic hose 5 is in return duct 6
Shape in parallel, and the both ends of elastic hose 5 connect with return duct 6, it is concretely comprised the following steps：
S1：End the path between return duct 6 and elastic hose 5；
S2：Make to keep connection between the inlet and outlet of elastic hose 5；
S3：The export direction for making to push away roller structure 3 toward elastic hose 5 moves, and discharges the fluid 7 in elastic hose 5；
S4：Make to be in cut-off state between the inlet and outlet of elastic hose 5, be between return duct 6 and elastic hose 5
Connected state forms home loop；
S5：Make to push away import direction motion of the roller structure 3 toward elastic hose 5, return to initial position；
S6：Circulation step S1~S5.
In concrete application example, the curve movement for pushing away roller structure 3 can be straight line, circular arc or other specific curves.
It the above is only preferred embodiment of the present utility model, the scope of protection of the utility model is not limited merely to above-mentioned
Embodiment, all technical schemes belonged under the utility model thinking belong to the scope of protection of the utility model.It should be pointed out that pair
For those skilled in the art, some improvements and modifications under the premise of the utility model principle is not departed from,
It should be regarded as the scope of protection of the utility model.
Claims (10)
1. a kind of metering device based on dual circuit, it is characterised in that including the elastic hose flowed through for fluid（5）With push away roller
Structure（3）, the elastic hose（5）With return duct（6）In shape in parallel, the elastic hose（5）Both ends and return duct（6）Even
It is logical, the elastic hose（5）Inlet and outlet be respectively arranged with import pressure pipe structure（1）With outlet pressure pipe structure（9）, it is described
Return duct（6）On be provided with return duct pressure pipe structure（2）, it is described to push away roller structure（3）All the time it press against elastic hose（5）Do back and forth past
Multiple motion.
2. the metering device according to claim 1 based on dual circuit, it is characterised in that the elastic hose（5）Installation
In fixed seat（4）On.
3. the metering device according to claim 2 based on dual circuit, it is characterised in that the elastic hose（5）With return
Flow tube（6）Pass through three-way connection（8）It is arranged in parallel.
4. the metering device according to claim 2 based on dual circuit, it is characterised in that described to push away roller structure（3）, import
Pressure pipe structure（1）, return duct pressure pipe structure（2）, outlet pressure pipe structure（9）It is connected with driving part；Each mechanism is using linkage
Mode, or by the way of independently driving.
5. the metering device based on dual circuit according to any one in Claims 1 to 4, it is characterised in that described to push away
Roller structure（3）Curve movement be straight line or circular arc.
6. a kind of metering device based on dual circuit, it is characterised in that including the elastic hose flowed through for fluid（5）With push away roller
Structure（3）, the elastic hose（5）With return duct（6）In shape in parallel, the elastic hose（5）Both ends and return duct（6）Even
It is logical, the elastic hose（5）Inlet and outlet be respectively arranged with inlet control valve（10）And discharge control valve（12）, described time
Flow tube（6）On be provided with reflux tube valve（11）, it is described to push away roller structure（3）All the time it press against elastic hose（5）Do back and forth reciprocal
Motion.
7. the metering device according to claim 6 based on dual circuit, it is characterised in that the elastic hose（5）Installation
In fixed seat（4）On.
8. the metering device according to claim 6 based on dual circuit, it is characterised in that the elastic hose（5）With return
Flow tube（6）Pass through three-way connection（8）It is arranged in parallel.
9. the metering device according to claim 6 based on dual circuit, it is characterised in that described to push away roller structure（3）With drive
Dynamic component is connected.
10. the metering device based on dual circuit according to any one in claim 6~9, it is characterised in that described to push away
Roller structure（3）Curve movement be straight line or circular arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720553781.6U CN206847703U (en) | 2017-05-18 | 2017-05-18 | A kind of metering device based on dual circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720553781.6U CN206847703U (en) | 2017-05-18 | 2017-05-18 | A kind of metering device based on dual circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206847703U true CN206847703U (en) | 2018-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720553781.6U Active CN206847703U (en) | 2017-05-18 | 2017-05-18 | A kind of metering device based on dual circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107036668A (en) * | 2017-05-18 | 2017-08-11 | 长沙执先智量科技股份有限公司 | A kind of metering method and metering device based on dual circuit |
-
2017
- 2017-05-18 CN CN201720553781.6U patent/CN206847703U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107036668A (en) * | 2017-05-18 | 2017-08-11 | 长沙执先智量科技股份有限公司 | A kind of metering method and metering device based on dual circuit |
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