CN2093284U - Return pressure control valve - Google Patents
Return pressure control valve Download PDFInfo
- Publication number
- CN2093284U CN2093284U CN 90225648 CN90225648U CN2093284U CN 2093284 U CN2093284 U CN 2093284U CN 90225648 CN90225648 CN 90225648 CN 90225648 U CN90225648 U CN 90225648U CN 2093284 U CN2093284 U CN 2093284U
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- millimeters
- pressure
- control valve
- diaphragm
- pressure control
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Abstract
The utility model relates to an outlet return pressure control valve of an experimental physical model device for driving oil via high pressure in tertiary oil recovery. By using the pressure balancing principle, a diaphragm 2 divides a main body 1 into a control pressure chamber S1 and a detection pressure chamber S2. When control pressure P1 and detection pressure P2 are unbalanced, the valve is automatically opened or closed. When carbon dioxide and crude oil form various non-mixed-phase or mixed-phase states, namely when liquid and gas phase states simultaneously pass, automatic control accuracy of pressure is about 0.02 MPa. The utility model has application range: operating pressure of 10-30 MPa and flow rate of 10-200 ml/hour, and is suitable for various experiments for driving oil via high pressure.
Description
The utility model is about oil field development tertiary oil recovery high pressure oil displacement test research physical model device outlet back pressure control valve.
The purpose of the utility model is accurately, controls automatically stably the back pressure of high pressure oil displacement test research physical model device outlet, makes the simulation test data accurate, realistic oil displacement efficiency.
High pressure oil displacement test research physical model is to study under the original formation pressure condition, and the oil displacement agent carbon dioxide of injection and crude oil form the oil displacement efficiency under various non-mixed phases or the mixed phase state.Pressure is generally at 10～30MPa, 10～200 milliliters/hour of injection rates, and the device outlet is that two kinds of phases of liquids and gases flow out simultaneously, requires the pressure exactly.This back pressure autocontrol valve is at present domestic also not to be had, and replaces with miniature hand stop valve in the experimental study in the past, can not control automatically, and pressure surge is big, and the simulation test error is big.This product is abroad arranged, in the miscible displacement of reservoir device (MISCIBILITY APPARATUS) as the production of U.S.'s core (CORE) company the back pressure autocontrol valve is arranged.But the data deficiencies of the domestic parties concerned.
Feature of the present utility model is, utilizes pressure balanced principle, and diaphragm 2 is divided into pilot pressure chamber S to main body
1With detected pressures chamber S
2, as pilot pressure P
1With detected pressures P
2When uneven, valve opens automatically or cuts out.Pilot pressure P
1Selected as required, detected pressures P
2Be exactly that model equipment exports controlled pressure, work as P
2＞P
1The time, valve is opened automatically, on the contrary then valve cuts out automatically, i.e. P
2=P
1± Δ P.Selection has certain intensity, certain elasticity, the material of corrosion resistance, be processed into the diaphragm 2 of certain physical dimension, carbon dioxide and crude oil are under non-mixed phase or mixed phase state, be two kinds of phases of liquids and gases simultaneously by the time, the pressure precision of model equipment outlet is controlled at Δ P=± 0.02MPa automatically.Applicable scope: working pressure 10～30MPa; 10～200 milliliters/hour of flows.Satisfy the requirement of various high pressure oil displacement test researchs fully.
The utility model has been broken through the pattern of traditional pressure valve in design, has removed the parts such as spool, valve rod, spring and spring seat of traditional type pressure controlled valve, has reduced the retardation phenomenon of opening, and the sensitivity height is rational in infrastructure, makes little investment easily.The automatic control accuracy height of pressure has improved the condition that oil displacement test is studied, and test data is accurate, more realistic oil displacement efficiency.The utility model also is applicable to the high pressure oil displacement test research under the various conditions.
Embodiment of the present utility model sees shown in the accompanying drawing.
Among the figure, the 1-main body; The 2-diaphragm; The 3-lid; The 4-nut.
S on the main body 1
230 millimeters of indoor footpath φ, 1.5 millimeters of the degree of depth.10 millimeters of bottom bulge loop external diameter φ, 1.5 millimeters of width, 1.5 millimeters of the degree of depth, 0.5 millimeter of bulge loop center hole φ, 2 millimeters of the degree of depth.All the other passing holes are 2 millimeters of φ, and the outside and end face respectively have a M8 of place * 1 spiral shell button, material chromium steel 1Cr13.40 millimeters of diaphragm 2 diameter phi, 1.5～2.0 millimeters of thickness, polish with abrasive paper for metallograph is manual during making one of them plane surface roughness Ra0.20～0.40, the high bottom in the face of main body 1 of precision during assembling, material teflon.40 millimeters of lid 3 diameter phi, end face inner conical surface angle is 125 °, 2 millimeters of center bore φ, the other end have M8 * 1 spiral shell button, material chromium steel 1Cr13.Nut 4, M45 * 3, material chromium steel 1Cr13.
Pilot pressure P of the present utility model
1By nitrogen bottle control, pressure value 10～30MPa, selected as required.
Claims (3)
1, back pressure control valve is an oil field development tertiary oil recovery high pressure oil displacement test research physical model device outlet back pressure control valve, form by main body, diaphragm, lid and nut, it is characterized in that adorning a diaphragm between main body and lid, bottom part body has a bulge loop and aperture, and the material of diaphragm is a teflon.
2, the said back pressure control valve of claim 1 is characterized in that the S of main body 1
230 millimeters of indoor footpath φ, 1.5 millimeters of the degree of depth, 10 millimeters of bottom bulge loop external diameter φ, 1.5 millimeters of height, 1.5 millimeters of width, 0.5 millimeter of bulge loop center hole φ, 2 millimeters of the degree of depth, material chromium steel 1Cr13.
3, the said back pressure control valve of claim 1, it is characterized in that 40 millimeters of diaphragm 2 diameter phi, 1.5～2.0 millimeters of thickness, one of them plane surface roughness Ra0.20～0.40, polish the high bottom in the face of main body 1 of precision during assembling during making with abrasive paper for metallograph is manual.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90225648 CN2093284U (en) | 1990-12-03 | 1990-12-03 | Return pressure control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90225648 CN2093284U (en) | 1990-12-03 | 1990-12-03 | Return pressure control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2093284U true CN2093284U (en) | 1992-01-15 |
Family
ID=4903049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90225648 Withdrawn CN2093284U (en) | 1990-12-03 | 1990-12-03 | Return pressure control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2093284U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101626812B (en) * | 2007-02-10 | 2012-09-05 | 全瓦尔特消防和安全有限公司 | Method and device for controlling a fire-extinguishing system of the high-pressure gas type |
| CN105190134A (en) * | 2013-01-25 | 2015-12-23 | 克诺尔商用车制动系统有限公司 | Check valve for ventilation or outlet openings of compressed air apparatuses in vehicles |
| EP4234971A1 (en) * | 2022-02-23 | 2023-08-30 | Vibracoustic SE | Valve and method for the production thereof |
-
1990
- 1990-12-03 CN CN 90225648 patent/CN2093284U/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101626812B (en) * | 2007-02-10 | 2012-09-05 | 全瓦尔特消防和安全有限公司 | Method and device for controlling a fire-extinguishing system of the high-pressure gas type |
| CN105190134A (en) * | 2013-01-25 | 2015-12-23 | 克诺尔商用车制动系统有限公司 | Check valve for ventilation or outlet openings of compressed air apparatuses in vehicles |
| CN105190134B (en) * | 2013-01-25 | 2017-07-11 | 克诺尔商用车制动系统有限公司 | Exhaust outlet or the check-valves of outlet for the blowing plant of vehicle |
| US9909675B2 (en) | 2013-01-25 | 2018-03-06 | Knorr-Bremse Systeme Fuer Nutzfahrzeuge Gmbh | Check valve for ventilation or outlet openings of compressed air apparatuses in vehicles |
| EP4234971A1 (en) * | 2022-02-23 | 2023-08-30 | Vibracoustic SE | Valve and method for the production thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |