CN2499816Y - Micro pressure adjuster - Google Patents
Micro pressure adjuster Download PDFInfo
- Publication number
- CN2499816Y CN2499816Y CN 01244891 CN01244891U CN2499816Y CN 2499816 Y CN2499816 Y CN 2499816Y CN 01244891 CN01244891 CN 01244891 CN 01244891 U CN01244891 U CN 01244891U CN 2499816 Y CN2499816 Y CN 2499816Y
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- CN
- China
- Prior art keywords
- pressure
- container
- utility
- model
- constant flow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Control Of Fluid Pressure (AREA)
Abstract
The utility model relates to a micro pressure adjuster, which belongs to a pressure adjusting device. The utility model particularly relates to micro pressure for continuous adjustment. The utility model is composed of a constant flow pump 1 and a tee joint container 2, wherein two pipe orifices are arranged under the container, one pipe orifice is taken as a liquid inlet 3 and the other is taken as a liquid outlet 4. One pipe orifice which is arranged above the container is taken as a pressure outlet 5. The liquid inlet is connected with the constant flow pump, a liquid outlet is provided with an adjustable valve 7, and the pressure outlet is connected with following appliances. Output pressure is adjusted continuously and finely through controlling the flow velocity of the constant flow pump and the size of the adjustable valve. The utility model has the advantages of simple structure and low cost, and the utility model can be widely used for various work occasions needing continuously adjustable micro pressure output.
Description
Technical field:
The utility model belongs to a kind of pressure adjustment assembly, especially relates to the slight pressure that can regulate continuously.
Background technology:
At present, in production fields such as scientific research fields such as physics, chemistry, biology and food, medicine, there are many workplaces need adopt continuously adjustable slight pressure output unit to carry out flow control.The existing tiny flow quantity control device (as: the IM-300 type that NARISHIGE company produces) that adopts electronic sensor in the import equipment, but its complex structure, (tens thousand of yuans) cost an arm and a leg.
Summary of the invention:
It is a kind of simple in structure, with low cost that the purpose of this utility model is to provide, and can realize the minute-pressure force regulator of continuous adjustable slight pressure output.
Technical solution of the present utility model is as follows: whole adjuster is made of constant flow pump and threeway container; There are two mouths of pipe the below of threeway container, one as liquid inlet, one as liquid outlet, there is a mouth of pipe its top, as pressure output; The liquid inlet links to each other with constant flow pump, and liquid outlet is installed control valve, and pressure output links to each other with follow-up equipment.
The utility model is that the engineering fluid mechanics analysis theories with creeping flow is a design basis, and its core mainly is the threeway container.There are two mouths of pipe the below of container, one as liquid inlet, one as liquid outlet; There is a mouth of pipe top of container, as pressure output.Stability and long working time for guaranteeing the output of minute-pressure power need the threeway container that certain volume is arranged, and are at least 50 milliliters.In use, to keep certain amount of fluid in the chamber of threeway container, the liquid gateway is immersed in the liquid fully and pressure output remains on the liquid level.Be connected by connecting pipe (flexible pipe or hard tube all can) between the liquid inlet of constant flow pump and threeway container.Enter from the liquid inlet, discharge by connecting pipe from the working fluid of constant flow pump output from liquid outlet.Constant flow pump (or claiming peristaltic pump) can adopt conventional device, or other any device with similar output flow range replaces.Liquid outlet will be installed a control valve, be used for controlling output resistance (adopt manual or automatically control all can).Liquid outlet can link to each other, make the liquid of discharge to recycle through water storage container again with constant flow pump.Pressure output also links to each other with follow-up equipment, provides required convenient pressure for it by connecting pipe (flexible pipe or hard tube all can).A tensimeter that range is suitable also can be installed by the pressure output place, so that obtain the accurate numerical value of output pressure.
In practical work process, open constant flow pump, allow liquid inject the threeway container with certain flow rate, open control valve simultaneously, allow liquid to flow out (perhaps: close control valve earlier, when the pressure in the container increases to required minimum value, open control valve again, allow liquid to flow out).The size of regulating and controlling valve makes the outflow of liquid be subjected to certain resistance.Along with accumulating of liquid in container, pressure in the container can increase, and the flow rate of liquid of liquid outlet is increased, up to consistent with the inflow velocity at place, liquid inlet, internal tank will keep a constant normal pressure this moment, can draw by the pressure output of container top.By the flow velocity of control constant flow pump and the size of control valve, can carry out meticulous adjusting continuously to output pressure.
If the constant flow pump antiport makes liquid flow out, export inflow from original inlet, the flow direction when promptly turning round with forward is opposite, at this moment, just can correspondingly obtain continuously adjustable small negative pressure at pressure output.
The utility model is a theoretical foundation with the engineering fluid mechanics analysis of creeping flow, utilizes simple elements, reaches the purpose of improving continuous slight pressure output range of adjustment and precision.Simple in structure, with low cost.Combine with constant flow pump or other device that can realize continuous fluid output, can be widely used in the workplace of the continuously adjustable slight pressure output of various needs, have a good application prospect.
Description of drawings:
Accompanying drawing 1 is the structural representation of minute-pressure force regulator.
Embodiment:
Whole adjuster is made of constant flow pump 1 and threeway container 2.The model of constant flow pump is BT01-100.The threeway container can be made by glass, is preferably whole blowing and leaks gas in order to avoid the junction is poorly sealed.The diameter of threeway container is 60 millimeters, and volume is 400 milliliters.The caliber of liquid inlet 3 and liquid outlet 4 is that 1 millimeter, the caliber of pressure output 5 are 0.5 millimeter.Connecting pipe 6 is a silicon rubber hose, and control valve 7 adopts smaller diameter valve.Liquid 8 is common water, and institute's pressure that obtains is adjustable continuously under 0～1 atmospheric pressure.
Claims (1)
1, a kind of minute-pressure force regulator, it is characterized in that being made of constant flow pump (1) and threeway container (2), there are two mouths of pipe the below of container, one as liquid inlet (3), one as liquid outlet (4), there is a mouth of pipe top of container, as pressure output (5); The liquid inlet links to each other with constant flow pump, and liquid outlet is installed control valve (7), and pressure output links to each other with follow-up equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01244891 CN2499816Y (en) | 2001-07-16 | 2001-07-16 | Micro pressure adjuster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01244891 CN2499816Y (en) | 2001-07-16 | 2001-07-16 | Micro pressure adjuster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2499816Y true CN2499816Y (en) | 2002-07-10 |
Family
ID=33656233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01244891 Expired - Fee Related CN2499816Y (en) | 2001-07-16 | 2001-07-16 | Micro pressure adjuster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2499816Y (en) |
-
2001
- 2001-07-16 CN CN 01244891 patent/CN2499816Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |