CN202795075U - Fluid Release Quantitative Control Device - Google Patents
Fluid Release Quantitative Control Device Download PDFInfo
- Publication number
- CN202795075U CN202795075U CN 201220342393 CN201220342393U CN202795075U CN 202795075 U CN202795075 U CN 202795075U CN 201220342393 CN201220342393 CN 201220342393 CN 201220342393 U CN201220342393 U CN 201220342393U CN 202795075 U CN202795075 U CN 202795075U
- Authority
- CN
- China
- Prior art keywords
- pressure
- valve
- fluid
- cylinder
- multipier
- 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
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 92
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims description 7
- 150000002829 nitrogen Chemical class 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 13
- 230000008569 process Effects 0.000 abstract description 7
- 238000011161 development Methods 0.000 abstract description 6
- 230000018109 developmental process Effects 0.000 abstract 1
- 239000004215 Carbon black (E152) Substances 0.000 description 22
- 229930195733 hydrocarbon Natural products 0.000 description 22
- 150000002430 hydrocarbons Chemical class 0.000 description 22
- 238000004088 simulation Methods 0.000 description 13
- 238000002474 experimental method Methods 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 230000032696 parturition Effects 0.000 description 6
- 238000011160 research Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 2
- 238000004590 computer program Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005325 percolation Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 231100000086 high toxicity Toxicity 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004058 oil shale Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Images
Landscapes
- Fluid-Pressure Circuits (AREA)
Abstract
The utility model relates to a high-pressure fluid release quantitative control device, which comprises a pressure multiplier, wherein the bottom inlet of the pressure multiplier is connected with a pressure control pipeline, the upper inlet of the pressure multiplier is connected with a fluid inlet pipeline through a pneumatic valve, and the upper outlet of the pressure multiplier is connected with a fluid outlet pipeline; the pressure control pipeline comprises a nitrogen cylinder, the outlet of the nitrogen cylinder is connected in series with a first electromagnetic valve and a second electromagnetic valve, a pressure control pipeline is connected between the two electromagnetic valves, and the pressure control pipeline is connected to the inlet at the bottom of the pressure multiplier; a pressure sensor is arranged in the pressure control pipeline; the first electromagnetic valve, the second electromagnetic valve and the pressure sensor are electrically connected with a computer. The utility model discloses can realize high accuracy, developments, automated control high-pressure fluid's release process, provide more accurate, keep apart complete, automatic, safe, the low price pressure release controlling means for high-pressure vessel and pipeline.
Description
Technical field
The utility model is the experimental provision about a kind of oil geology, mineral products field, relates in particular to a kind of high-pressure fluid and discharges quantitative control device.
Background technology
High pressure vessel and pipeline, particularly include have high temperature, highly corrosive, highly toxic fluid, how the dispose procedure of its fluid is controlled in intellectuality safety, accurate quantification, is that the industry member high pressure vessel is used and one of difficult problem of pipeline control.Aspect geological sciences research, need to simulate the process that the one-tenth ore deposit of approaching under the geologic condition becomes Tibetan and Fluid Flow in A, the quantitative control that high-pressure fluid discharges has determined the science of experimental result.As aspect the oil geology, Diagenesis, give birth to hydrocarbon, row's hydrocarbon, oil-gas migration analogue means, by the quantitative control that high-pressure fluid is discharged, could reproduce the process of the slow seepage flow of underground fluid.
From present document both domestic and external, the low-pressure fluid control device is a lot, mainly contains three classes, hand valve, pneumatic/solenoid valve, check valve but control the above device of 50 MPas.Hand valve is the most traditional pressure control device, and it is by artificial twisting needle, and the connectivity in control needle and valve body duct reaches the effect of pressure control; Advantage is direct control, manual control precision; Shortcoming is that manual control is dangerous large.As driving force, so that needle opens or closes, and this action can be fully by circuit or gas circuit control, and is safe with low-pressure gas or electromagnetic force for pneumatic/solenoid valve; If be connected with computer program, can fixed cycle operator; Shortcoming is quantitatively to control as required burst size, and the Fluid Volume that once discharges is fully by the shortest route Time dependent of container volume or line pressure and needle.The check valve utilization be pressure balanced principle, generally to unite use with the pressure control pump; Gordian technique is metallic membrane, pressure regulating cavity, pressure control pump or the pipeline that is connected with needle, and pressure control pipeline and controlled pipeline exist pressure differential metal abrasive disc to move, and drives needle and opens and closes; This device can be by connecting computing machine, and the pressure size by programmed control pressure control pump realizes the dynamic control that high-pressure fluid discharges, and the pressure control precision is greater than 3MPa; Shortcoming is that precision is not high enough, and control accuracy is unstable when fluid contains solid impurity; Also need a high precision pressure control pump that price is higher, cost is higher.
The petroleum geology experiment analogue means also is with above three kinds of devices at present.In the formation pore heat-pressing hydrocarbon generation simulating device (patent No. CN101520962A) of Sinopec petroleum exploration and development research institute development, discharge the additional fluid pressure that produces because giving birth to the hydrocarbon supercharging by hand valve.Usually take continuous several days owing to give birth to the hydrocarbon simulated experiment, need the experimenter whenever less than half an hour will relief pressure once, extremely consume the people.The reservoir diagenetic analogue means (number of patent application 201110425045.X) of Oil Exploration in China development research institute development, when the semiclosed system of simulation diagenetic reaction environment, switch by pneumatic valve comes relief pressure to discharge fluid, but because discharge opeing pressure decreased 5～20MPa, cause repeatedly supplementary pressure and discharge opeing, can't really simulate the fluid flow event under the geologic condition.The solid fluid of geological sciences research institute of Shengli Oil Field branch office of China petroleum chemical engineering Stock Co., Ltd utility model is coupled in the voltage-controlled generation and expulsion modeling experimental provision (number of patent application 201110004746.6), is provided with the high-pressure buffer of piston and the discharging that the hydrodynamic pressure control pump is controlled still internal pressure and fluid by interior.The shortcoming of this device is to unite with the pressure control pump that is worth tens0000; And can not spacing container inside and outside fluid, cause and discharge fluid because of thermal convection back flow reaction again, this and the geology fact are not inconsistent.The Semi-open system rock heating simulator (number of patent application 201110138667.4) of Oil Exploration in China development research institute utility model is although solved the isolating problem of outer fluid in the container by check valve, but still need to unite use with expensive pressure control pump, belong to the technology with the high voltage control high pressure, and the high control precision of check valve 3～5MPa does not reach the seepage flow situation under the simulation geologic condition yet.
Thus, the inventor relies on experience and the practice of being engaged in for many years relevant industries, proposes a kind of release of fluid quantitative control device, to overcome the defective of prior art.
The utility model content
The purpose of this utility model is to provide a kind of release of fluid quantitative control device, robotization control based on pressure multiplier thinking and low pressure gas circuit, realize high precision, dynamically, the dispose procedure of robotization control high-pressure fluid, for high pressure vessel with pipeline provides more precisely, complete, automatic, safe, the cheap release of pressure control device of isolation.
The purpose of this utility model is to realize like this, a kind of release of fluid quantitative control device, described release of fluid quantitative control device comprises a pressure multipier, this pressure multipier bottom inlet is connected with the pressure control pipeline, the pressure multipier upper inlet is connected with the fluid inlet pipeline by a pneumatic valve, and the outlet of pressure multipier top is connected with the fluid egress point pipeline; Described pressure control pipeline comprises a nitrogen cylinder, and this nitrogen cylinder outlet is connected with the first solenoid valve and the second solenoid valve, connects a control pressure line between two solenoid valves, and this control pressure line is connected in the pressure multipier bottom inlet; Be provided with pressure transducer in this control pressure line; Described the first solenoid valve, the second solenoid valve and pressure transducer are electrically connected on a computer; Described fluid is high-pressure fluid.
In a preferred embodiments of the present utility model, the pressure of described high-pressure fluid is 10-200MPa.
In a preferred embodiments of the present utility model, described pressure multipier is comprised of lower piston cylinder and top operation valve; Described lower piston cylinder comprises a cylinder cylinder body, is provided with up-small and down-big stepped piston in the cylinder cylinder body, and large piston is slidedly arranged in the cylinder cylinder body, and valve piston stretches out cylinder cylinder body top, and the cylinder cylinder base is provided with the bottom inlet with the conducting of pressure control pipeline; Described top operation valve includes valve body and valve gap, is provided with the through hole that runs through up and down in the valve body, and described valve gap is located at the valve body top, and the valve gap below is provided with one section projection, and the through hole upper end is located in this projection sealing; Described projection axial centre position is provided with the first perforation, and the first perforation one side is provided with the second perforation; Described valve piston top is provided with a needle, and this needle is plugged in through hole by the valve body sealed bottom, and described needle is axially relative with the first perforation, and the needle top is plugged in the first perforation; Described top operation valve is fixedly connected with by support with the lower piston cylinder.
In a preferred embodiments of the present utility model, described the first perforate tip is the outlet of pressure multipier top, and described the second perforate tip is the pressure multipier upper inlet.
In a preferred embodiments of the present utility model, described pressure multipier upper inlet is connected with two ports of described pneumatic valve by a threeway; Pressure multipier top outlet the first opening by a switch T-valve be connected opening and be connected with the fluid egress point pipeline; Another port of described threeway is connected with the 3rd opening of switch T-valve.
In a preferred embodiments of the present utility model, described switch T-valve is made of valve body and needle; Be provided with the right-angled intersection duct of perforation in the described valve body, the aperture of described longitudinal holes is greater than the aperture in horizontal duct; Described longitudinal holes two ends are respectively the first opening and the second opening; Described horizontal duct one end is the 3rd opening, and described needle is inserted by the horizontal duct other end and spiral is arranged in this horizontal duct.
From the above mentioned, high-pressure fluid of the present utility model discharges quantitative control device, can control well the interior hydrodynamic pressure of autoclave and the discharging of product, fully isolating on the basis of outer fluid in the kettle, both can accomplish constant voltage in the autoclave, can realize according to predetermined scheme again the dynamic control of different time, different blowdown presssures; Pressure controling precision is less than 2MPa; Thereby provide the release quantitative control device of simulation rock percolation in porous medium for simulation geology diagenesis, living hydrocarbon expulsion process.The utility model realized high precision, dynamically, the dispose procedure of robotization control high-pressure fluid, also for high pressure vessel with pipeline provides more precisely, complete, automatic, safe, the cheap release of pressure control device of isolation.
Description of drawings
The following drawings only is intended to the utility model done and schematically illustrates and explain, does not limit scope of the present utility model.Wherein:
Fig. 1: be the structural representation of the utility model release of fluid quantitative control device.
Fig. 2: be pressure multipier structural representation in the utility model.
Fig. 3: be pressure multipier top operation valve structural representation in the utility model.
Fig. 4: be switch T-valve structural representation in the utility model.
Fig. 5: be the utility model embodiment and existing pneumatic valve pressure control effect comparison diagram.
Embodiment
Understand for technical characterictic of the present utility model, purpose and effect being had more clearly, now contrast description of drawings embodiment of the present utility model.
As shown in Figure 1, the utility model proposes a kind of release of fluid quantitative control device 100, described fluid is high-pressure fluid; Described release of fluid quantitative control device 100 comprises a pressure multipier 1, this pressure multipier 1 bottom inlet A is connected with pressure control pipeline 2, pressure multipier 1 upper inlet B is connected with high-pressure fluid inlet line 4 by a pneumatic valve 3, in order to control high-temperature, high pressure fluid, reduce the influence degree that controlled fluid is subjected to peripheral hardware; Pressure multipier 1 top outlet C is connected with high-pressure fluid discharge pipe 5; Described pressure control pipeline 2 comprises a nitrogen cylinder 21, and these nitrogen cylinder 21 outlets are connected with and connect a control pressure line 24 between the first solenoid valve 22 and 23, two solenoid valves 22 of the second solenoid valve, 23, and this control pressure line 24 is connected in pressure multipier 1 bottom inlet A; Be provided with pressure transducer 25 in this control pressure line 24; Described the first solenoid valve 22, the second solenoid valve 23 and pressure transducer 25 are electrically connected on a computer 26; Such as Fig. 2, shown in Figure 3, in the present embodiment, described pressure multipier 1 is comprised of lower piston cylinder 11 and top operation valve 12; Described lower piston cylinder 11 comprises a cylinder cylinder body 111, be provided with the stepped piston 112 of up-small and down-big (diameter is different) in the cylinder cylinder body 111, large piston 1121 is slidedly arranged in the cylinder cylinder body 111, valve piston 1122 stretches out cylinder cylinder body 111 tops, and cylinder cylinder body 111 bottoms are provided with the bottom inlet A with 2 conductings of pressure control pipeline; Described top operation valve 12 includes valve body 121 and valve gap 122, is provided with the through hole 1211 that runs through up and down in the valve body 121, and described valve gap 122 is located at valve body 121 tops, and valve gap 122 belows are provided with one section projection 1221, and through hole 1211 upper ends are located in these projection 1221 sealings; Described projection 1221 axial centre positions are provided with the first perforation 1222, the first perforation 1,222 one sides and are provided with the second perforation 1223; Described the first perforation 1222 ends are pressure multipier 1 top outlet C, and described the second perforation 1223 ends are pressure multipier 1 upper inlet B; Described valve piston 1122 tops are provided with a needle 123, and this needle 123 is plugged in the through hole 1211 by valve body 121 sealed bottoms, and described needle 123 is axially relative with the first perforation 1222, and needle 123 tops are plugged in the first perforation 1222; Described top operation valve 12 is fixedly connected with by support 13 with lower piston cylinder 11.
In the present embodiment, described high-pressure fluid discharges quantitative control device 100 and gives birth to the research of row's hydrocarbon thermal simulation experiment for oil geology, and the high-pressure fluid inlet line 4 that this high-pressure fluid discharges in the quantitative control device 100 is connected with the reactor (not shown) outlet of living row's hydrocarbon thermal simulation experiment device.It is as follows that high-pressure fluid discharges quantitative control procedure: the nitrogen pressure value of at first determining pressure multipier 1 needle shutoff Experimental Flowing Object; According to the mechanics drive connection, be inversely proportional to pressure (physics becomes pressure) in that stressed identical condition lower section is long-pending, convert and in computer program input row hydrocarbon pressure control nitrogen pressure value, by programmed control the first solenoid valve 22 and 23 opening and closing of the second solenoid valve, with to large piston 1121 on-load pressures in pressure multipier 1 bottom, make needle 123 shutoff first perforation 1222 of pressure multipier 1; Then the row's hydrocarbon force value that allows is tested in input on computers, and (the hydrocarbon force value is arranged in input, and point is definite with this unlocking condition of controlling pneumatic valve 3; Computer reads the real-time pressure value that pressure transducer (not shown) that pneumatic valve 3 the place aheads install additional is surveyed, and when reaching row's hydrocarbon pressure set points, computer to the source of the gas controller of pneumatic valve 3 the inflation instruction occurs, and pneumatic valve 3 is opened, and closes behind the 500ms); Begin experiment; When living hydrocarbon reaches the row's of setting hydrocarbon force value, pneumatic valve 3 moments unlatching, high-temperature, high pressure fluid enters pressure multipier 1 by upper inlet B, the needle 123 that high-pressure fluid promotes pressure multipier moves down, open the first perforation 1222, micro fluid is discharged by pressure multipier 1 top outlet C, and hydrodynamic pressure reduces, the needle 123 of pressure multipier is closed, and front end pneumatic valve 3 cuts out; With this repeatedly.In chemical process, oil geology industry, liquid or other hydrodynamic pressures are low pressure at 0.1-1.6MPa, and 1.6-10MPa is middle pressure, and 10-100MPa becomes high pressure, and 100MPa is above to be UHV (ultra-high voltage), and these are approved in industry; The pressure limit of high-pressure fluid described in the present embodiment is 10-200MPa.
From the above mentioned, high-pressure fluid of the present utility model discharges quantitative control device, can control well the interior hydrodynamic pressure of autoclave and the discharging of product, fully isolating on the basis of outer fluid in the kettle, both can accomplish constant voltage in the autoclave, can realize according to predetermined scheme again the dynamic control of different time, different blowdown presssures; Pressure controling precision is less than 2MPa; Thereby provide the release quantitative control device of simulation rock percolation in porous medium for simulation geology diagenesis, living hydrocarbon expulsion process.The utility model realized high precision, dynamically, the dispose procedure of robotization control high-pressure fluid, also for high pressure vessel with pipeline provides more precisely, complete, automatic, safe, the cheap release of pressure control device of isolation.
In the present embodiment, the program by computer 26 and the reading of pressure transducer 25 are controlled opening and 22 pass of solenoid valve 23, reduce the lower end pressure of pressure multipier 1 with this; Control the pass of solenoid valve 23 and 22 open by the program of computer 26 and the reading of pressure transducer 25, provide the lower end pressure of pressure multipier 1 with this, thereby make the quantitatively pressure of control fluid of pressure multipier 1; Described nitrogen cylinder 21 provides the power that closes valve for pressure multipier 1.During work, the bottom inlet A of the nitrogen injection pressure multiplier 1 of certain pressure, the pressure conversion of the large piston 1121 by different cross-sectional, valve piston 1122 and needle 123 reaches the purpose of high-pressure fluid of the upper inlet B of quantitative shutoff pressure multipier 1.The first perforation 1222 of valve gap 122 is withstood on needle top 123, and the upper inlet B of pressure multipier 1 communicates with the needle cavity.When opening pressure that the hydrodynamic pressure of upper inlet B is set greater than needle 123, needle pushes away for 123 times, and high-pressure fluid is discharged through high-pressure fluid discharge pipe 5 from pressure multipier 1 top outlet C, otherwise then closes.
Such as Fig. 2, shown in Figure 3, top operation valve 12 and the lower piston cylinder 11 of described pressure multipier 1 are connected and fixed by three standing screws; Large piston 1121 outer walls are provided with the twice rubber seal ring, thus with 111 sealings of cylinder cylinder body; Described projection 1221 outer walls are provided with the three seals ring, are used for sealing with through hole 1211 upper ends; Needle 123 is provided with the two seals ring, is used for sliding with through hole 1211 sealings.
Further, as shown in Figure 1, in the present embodiment, described pressure multipier 1 upper inlet B is connected with two ports 61,62 of described pneumatic valve 3 by a threeway 6; First opening 71 of outlet C in pressure multipier 1 top by a switch T-valve 7 be connected opening 72 and be connected with fluid egress point pipeline 5; Another port 63 of described threeway 6 is connected with the 3rd opening 73 of switch T-valve 7.Described threeway is exactly the coupling arrangement of three interfaces, and wherein fluid is interconnected, and is unified pressure system; Described switch T-valve refers to the threeway with switch valve, can close as required one of them interface, and fluid is advanced from an interface, and an interface goes out; Also can open switch, realize the function of threeway.
As shown in Figure 4, in the present embodiment, described switch T-valve 7 is made of valve body 74 and needle 75; Be provided with the right-angled intersection duct of perforation in the described valve body 74, the aperture of described longitudinal holes 741 is greater than the aperture in horizontal duct 742; Described longitudinal holes 741 two ends are respectively the first opening 71 and the second opening 72; Described horizontal duct 742 1 ends are the 3rd opening 73, and described needle 75 is inserted by horizontal duct 742 other ends and spiral is arranged in this horizontal duct 742, and needle 75 is provided with sealing ring.Discharge in quantitative control device 100 application at high-pressure fluid, after control needle 75 is closed horizontal duct 742, high-pressure fluid will be through upper inlet B and the top outlet C of pressure multipier 1, and the longitudinal holes 741 of switch T-valve 7 and being discharged by quantitative control (because the aperture of longitudinal holes 741 is greater than the horizontal aperture in duct 742, needle 75 can not stop up longitudinal holes 741 when closing horizontal duct 742); When control needle 75 horizontal duct 742 is opened, make horizontal duct 742 and longitudinal holes 741 conductings, can allow pipeline to vacuumize; In when experiment, if the high-pressure fluid that quantitatively discharges has the cleanliness factor requirement, so, before experiment to the high-pressure fluid pipeline vacuumize be very necessary (for example: the row's of giving birth to hydrocarbon thermal simulation experiment); If the high-pressure fluid to quantitative release does not have the cleanliness factor requirement, also can omit the step and the dependency structure thereof that vacuumize.
As shown in Figure 5, for setting the control row hydrocarbon Contrast on effect result that the still internal pressure is 31 ± 2MPa under the identical heating-up temperature condition.Along with the reaction of giving birth to hydrocarbon, the kettle internal pressure can raise gradually, uses the utility model high-pressure fluid and discharges quantitative control device, and its pressure control test point all drops on the 30-33MPa interval more than 99%, and sets only poor 1MPa of pressure control core values; And use existing pneumatic valve pressure control, the test point pressure behind row's hydrocarbon has from several MPas to twenties MPa, has departed from tens MPas of set pressure scope.Therefore, the utility model pressure control precision can reach 1MPa.
With existing check valve-pressure control pump interlock pressure control device contrast, the utility model pressure control precision is less than 2MPa, and the latter's pressure control precision is generally at 3～8MPa; The required peripheral hardware of check valve is expensive, and pressure multipier is cheap; Pressure multipier (as: row of giving birth to hydrocarbon thermal simulation system) when a small amount of high-pressure fluid of control has obvious pressure control precision advantage.
With the contrast of piston type backpressure pump pressure control device, the utility model has been cut apart the inside and outside fluid of controlled pressure apparatus, prevents the secondary back reaction of chemical experiment, and latter can not.
In addition, high-pressure fluid release quantitative control device of the present utility model also has the following advantages:
1. the utility model is by pressure multipier, pneumatic valve, solenoid valve and cheap nitrogen cylinder, realized accurately controlling high-pressure fluid with low-pressure fluid, low price device, make the hydrodynamic pressure of controlled pressure vessel or pipeline precise and stable in setting value, precision reaches about 1MPa.
2. the utility model is applied to the geological process simulated experiments such as diagenesis, the row's of giving birth to hydrocarbon, can realize well the simulation of geology blowhole inner fluid flow event, has greatly improved the science of experimental study.
3. the utility model is by the setting of computing machine to pressure, can realize that convection cell discharges automatically, far distance controlled, and can realize the control of pressurizeing in time, thereby save manpower, reduced operational danger.
4. the utility model can be controlled 800 ℃ with interior, pressure 200MPa gas or the liquid with interior High Temperature High Pressure, and has certain corrosion resistance.
The utility model is applicable to the simulated experiment instrument of chemical reaction and physical process under all kinds of high temperature and high pressure containers voltage stabilizings of industry member, High Temperature High Pressure pipeline pressure control and the stratum condition of high voltage.It is corrosivity, high toxicity and high-risk property that the intellectuality of device, leakproofness and decay resistance allow institute's flow control body.As testing the field in geological sciences, install this device additional on the instrument systems such as reservoir diagenetic simulation, the row's of giving birth to hydrocarbon thermal simulation, oil shale fuel aspiration are attached, just can realize in the simulated formation or acid or alkali or salt or high temperature fluid pressure steadily, quantitatively, automatic control.
The above only is the schematic embodiment of the utility model, is not to limit scope of the present utility model.Any those skilled in the art, the equivalent variations of having done under the prerequisite that does not break away from design of the present utility model and principle and modification all should belong to the scope that the utility model is protected.
Claims (6)
1. release of fluid quantitative control device, it is characterized in that: described release of fluid quantitative control device comprises a pressure multipier, this pressure multipier bottom inlet is connected with the pressure control pipeline, the pressure multipier upper inlet is connected with the fluid inlet pipeline by a pneumatic valve, and the outlet of pressure multipier top is connected with the fluid egress point pipeline; Described pressure control pipeline comprises a nitrogen cylinder, and this nitrogen cylinder outlet is connected with the first solenoid valve and the second solenoid valve, connects a control pressure line between two solenoid valves, and this control pressure line is connected in the pressure multipier bottom inlet; Be provided with pressure transducer in this control pressure line; Described the first solenoid valve, the second solenoid valve and pressure transducer are electrically connected on a computer; Described fluid is high-pressure fluid.
2. release of fluid quantitative control device as claimed in claim 1, it is characterized in that: the pressure of described high-pressure fluid is 10-200MPa.
3. release of fluid quantitative control device as claimed in claim 1, it is characterized in that: described pressure multipier is comprised of lower piston cylinder and top operation valve; Described lower piston cylinder comprises a cylinder cylinder body, is provided with up-small and down-big stepped piston in the cylinder cylinder body, and large piston is slidedly arranged in the cylinder cylinder body, and valve piston stretches out cylinder cylinder body top, and the cylinder cylinder base is provided with the bottom inlet with the conducting of pressure control pipeline; Described top operation valve includes valve body and valve gap, is provided with the through hole that runs through up and down in the valve body, and described valve gap is located at the valve body top, and the valve gap below is provided with one section projection, and the through hole upper end is located in this projection sealing; Described projection axial centre position is provided with the first perforation, and the first perforation one side is provided with the second perforation; Described valve piston top is provided with a needle, and this needle is plugged in through hole by the valve body sealed bottom, and described needle is axially relative with the first perforation, and the needle top is plugged in the first perforation; Described top operation valve is fixedly connected with by support with the lower piston cylinder.
4. release of fluid quantitative control device as claimed in claim 3 is characterized in that: described the first perforate tip is the outlet of pressure multipier top, and described the second perforate tip is the pressure multipier upper inlet.
5. release of fluid quantitative control device as claimed in claim 1, it is characterized in that: described pressure multipier upper inlet is connected with two ports of described pneumatic valve by a threeway; Pressure multipier top outlet the first opening by a switch T-valve be connected opening and be connected with the fluid egress point pipeline; Another port of described threeway is connected with the 3rd opening of switch T-valve.
6. release of fluid quantitative control device as claimed in claim 5, it is characterized in that: described switch T-valve is made of valve body and needle; Be provided with the right-angled intersection duct of perforation in the described valve body, the aperture of described longitudinal holes is greater than the aperture in horizontal duct; Described longitudinal holes two ends are respectively the first opening and the second opening; Described horizontal duct one end is the 3rd opening, and described needle is inserted by the horizontal duct other end and spiral is arranged in this horizontal duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220342393 CN202795075U (en) | 2012-07-13 | 2012-07-13 | Fluid Release Quantitative Control Device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220342393 CN202795075U (en) | 2012-07-13 | 2012-07-13 | Fluid Release Quantitative Control Device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202795075U true CN202795075U (en) | 2013-03-13 |
Family
ID=47822310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220342393 Expired - Fee Related CN202795075U (en) | 2012-07-13 | 2012-07-13 | Fluid Release Quantitative Control Device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202795075U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102749937A (en) * | 2012-07-13 | 2012-10-24 | 中国石油天然气股份有限公司 | Fluid Release Quantitative Control Device |
| CN105526461A (en) * | 2015-12-19 | 2016-04-27 | 中国石油天然气股份有限公司 | Device for gas field ground liquid drainage and ice plugging method |
| CN106286968A (en) * | 2015-06-10 | 2017-01-04 | 杜景东 | Extra-high tension unit, valving and valving control method |
-
2012
- 2012-07-13 CN CN 201220342393 patent/CN202795075U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102749937A (en) * | 2012-07-13 | 2012-10-24 | 中国石油天然气股份有限公司 | Fluid Release Quantitative Control Device |
| CN102749937B (en) * | 2012-07-13 | 2014-06-04 | 中国石油天然气股份有限公司 | Fluid Release Quantitative Control Device |
| CN106286968A (en) * | 2015-06-10 | 2017-01-04 | 杜景东 | Extra-high tension unit, valving and valving control method |
| CN106286968B (en) * | 2015-06-10 | 2019-12-20 | 杜景东 | Ultrahigh pressure equipment, valve device and valve device control method |
| CN105526461A (en) * | 2015-12-19 | 2016-04-27 | 中国石油天然气股份有限公司 | Device for gas field ground liquid drainage and ice plugging method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102590456B (en) | Device and method for simulating volume fracturing of horizontal well on shale reservoir stratum | |
| CN106289988B (en) | Supercritical carbon dioxide rock fracture pilot system | |
| CN104963673B (en) | Visual experimental device for simulating temporary hydraulic fracture plugging of fiber diverter | |
| CN106918531A (en) | Can be used for multiphase coupled sound combination loading rock test rig and test method | |
| CN108333098A (en) | Shale gas reservoir micro-fractures high-temperature and high-pressure visual air water two phase fluid flow experimental provision | |
| CN201749062U (en) | A test device for the fracture process of rock fissures under the action of highly confined water | |
| CN107907431A (en) | Three axis load pulses hydraulically created fracture extended dynamic monitoring test devices | |
| CN203787002U (en) | Gas injection displacement coal seam gas physical similarity simulation experiment platform | |
| CN102841045A (en) | Impervious barrier permeability coefficient detection device and method | |
| CN103790580B (en) | A kind of hot dry rock pressure break original position local heat transfer chamber analog system device | |
| CN206439041U (en) | A kind of experimental provision for simulating the anti-reflection coal seam of carbon dioxide fracturing | |
| CN108119132B (en) | Tight sandstone gas reservoir near-wellbore-zone radial seepage water saturation simulation device and method | |
| CN106596802B (en) | A kind of high temperature and pressure heterogeneous fluid comprehensive tester | |
| CN107288632B (en) | Coal-rock reservoir drainage and production water source and pressure drop path simulation device and method | |
| CN106482924B (en) | Rock hydrocarbon generation flow simulation device | |
| CN103790564B (en) | Hot-dry rock fracturing high-pressure recovery-ratio-increasing laboratory simulation device | |
| CN104373106A (en) | Experimental method and experimental system of gas sealing performance of underground packer | |
| CN109882149B (en) | Experimental device and method for simulating production dynamics of fracture-cavity carbonate condensate gas reservoir | |
| CN202795075U (en) | Fluid Release Quantitative Control Device | |
| CN205483942U (en) | Visual seepage flow simulation experiment device of microcosmic | |
| CN102749937B (en) | Fluid Release Quantitative Control Device | |
| CN211201913U (en) | Device for evaluating hydrate production based on ultrasonic wave and sand control screen | |
| CN110630229A (en) | Apparatus and method for evaluating hydrate output based on ultrasonic and sand control screen mining | |
| CN108104786A (en) | A kind of shale pressure break simulating lab test device | |
| CN105464651A (en) | Simulation experiment system of gas-liquid two-phase seepage Jamin effect in coal reservoir |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20210713 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |