CN204270164U - A kind of test medium can the control pressurer system of two-way flow - Google Patents
A kind of test medium can the control pressurer system of two-way flow Download PDFInfo
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- CN204270164U CN204270164U CN201420775523.9U CN201420775523U CN204270164U CN 204270164 U CN204270164 U CN 204270164U CN 201420775523 U CN201420775523 U CN 201420775523U CN 204270164 U CN204270164 U CN 204270164U
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Abstract
The utility model discloses a kind of test medium can the control pressurer system of two-way flow, belongs to technical field of hydraulic test.The utility model comprises tested container and water tank, at least one control pressure line is connected with between described tested container and water tank, described control pressure line comprises plunger cavity, feed tube and drain pipe, coordinate in described plunger cavity and be provided with plunger, described plunger cavity is connected to tested container by drain pipe, and described drain pipe is provided with water outlet stop valve; Described plunger cavity is connected to water tank by feed tube, and described feed tube is provided with into water stop valve.The utility model utilizes the stop valve forcing opening and closing to replace inlet/outlet valve, and controlling that plunger moves thus realize medium by pressure feedback can forward and reversed flow, reaches rate of pressure rise and rate of pressure reduction can effectively control; Can controlled pressure more accurately, control accuracy reaches ± 0.02MPa; Automatic compensation or step-down are with stability contorting pressure; Break through the technical merit of conventional pressure measuring technology.
Description
Technical field
The utility model relates to technical field of hydraulic test, and especially one utilizes the two-way flow of ram pump actuating medium, effectively controls the Pressure Control Technology of rate of pressure rise and rate of pressure reduction or constant voltage.
Background technology
Pressure test technology utilizes high-voltage power supply generation equipment (be called for short main frame, all replace with main frame below) that test medium is injected tested container, pressure testing container inner pressure raised, detects the intensity of pressure testing container, the object of sealing property with this.Its step generally comprises the processes such as water filling, boosting, pressurize, release, and its technical requirement meets the standard content of JB/T12013-2014 " automatic control pressure testing machine ".General motor test pump or the pneumatic test pump of using is as main frame at present, utilizes retaining valve or stop valve to carry out pressurize, carries out release with unloader.
At present, as shown in Figure 1, existing test pump control principle makes water intaking valve 17 and outlet valve 16 alternately open and close by the to-and-fro movement of plunger to the pressure test know-why of existing test pump, and the medium in water tank is become high pressure water outlet P2 from low pressure water inlet P1; Container will be transported to by retaining valve 14 boost by closedown boosting rectifier control valve 12, closing containers unloader 15, high pressure water outlet; By opening boosting rectifier control valve 12 or stop plunger motion, system stops boosting entering pressurize, closes boosting rectifier control valve 12 and again boosts, and repeatedly can realize boosting, pressurize by this operation; The release of openable container unloader 15 feasible system.
Existing pressure test technical controlling precision can reach ± 0.5MPa, can meet the requirement such as container resistance test, sealing detection, deformation detection, explosion bulge test that major part is not high to control accuracy.But existing technical deficiency part is: 1, not easily accomplish accurate control to the rate of pressure rise of boost process; 2, can not achieve effective control to pressure reduction, after cannot completing step-down, the pressure drop stage of pressurize again controls; 3, during pressurize, because medium can not reversed flow, only there is unidirectional ftercompction, do not possess the function that step-down makes system pressure remain invariable; 4, control accuracy is difficult to improve again.
Utility model content
Goal of the invention of the present utility model is: for above-mentioned Problems existing, provides a kind of test medium can the control pressurer system of two-way flow, mainly solves the technical matters that prior art not easily accomplishes rate of pressure rise accurately to control; Also solving prior art can not achieve effective control to pressure reduction, cannot complete the pressure drop stage control technology problem of pressurize again after step-down; Also solve prior art when pressurize, because medium can not reversed flow, only there is unidirectional ftercompction, do not possess the technical matters that step-down makes system pressure remain invariable; Also solve pressure controling precision in prior art and be difficult to the technical matters improved again.Utilize the stop valve forcing opening and closing to replace inlet/outlet valve, controlling that plunger moves thus realize medium by pressure feedback can forward and reversed flow, reaches rate of pressure rise and rate of pressure reduction can effectively control; Can controlled pressure more accurately, control accuracy reaches ± 0.02MPa; Automatic compensation or step-down are with stability contorting pressure; Break through the technical merit of conventional pressure measuring technology.
The technical solution adopted in the utility model is as follows:
Test medium of the present utility model can the control pressurer system of two-way flow, at least one control pressure line is connected with between tested container and water tank, described control pressure line comprises plunger cavity, feed tube and drain pipe, coordinate in described plunger cavity and be provided with plunger, described plunger cavity is connected to tested container by drain pipe, and described drain pipe is provided with water outlet stop valve; Described plunger cavity is connected to water tank by feed tube, and described feed tube is provided with into water stop valve.
Due to said structure, in terms of existing technologies, the utility model utilizes the stop valve forcing opening and closing to replace inlet/outlet valve, controlling that plunger moves thus realize medium by pressure feedback can forward and reversed flow, and coordinating to link and reach the object of controlled pressure and pressure drop stage simultaneously by stop valve and plunger; Make the utility model on the basis possessing existing capability, the accurate control of rate of pressure rise and rate of pressure reduction can be realized; Can controlled pressure more accurately, control accuracy reaches ± 0.02MPa; Can automatic compensation or step-down make system held invariable when pressurize pressure; Effectively can control pressure reduction, complete the pressure drop stage function of pressurize again after step-down.Therefore the rate of pressure rise that the utility model mainly solves prior art not easily accomplishes the technical matters accurately controlled; Also solving prior art can not achieve effective control to pressure reduction, cannot complete the pressure drop stage control technology problem of pressurize again after step-down; Also solve prior art when pressurize, because medium can not reversed flow, only there is unidirectional ftercompction, do not possess the technical matters that step-down makes system pressure remain invariable; Also solve pressure controling precision in prior art and be difficult to the technical matters improved again.
Test medium of the present utility model can the control pressurer system of two-way flow, and described plunger cavity is connected with plunger cavity pressure transducer, described drain pipe is provided with container pressure sensor, and described plunger is provided with plunger position pick-up unit; Also transmission of signal is to controller for the connection of described plunger cavity pressure transducer, container pressure sensor and plunger position pick-up unit, and described controller connects and controlled into water stop valve, water outlet stop valve and plunger.
Due to said structure, the plunger position pick-up unit in the utility model, unloader, plunger cavity pressure transducer are selectable unit, and plunger position pick-up unit is used for automatic decision plunger position; Unloader can direct discharge system pressure; Plunger cavity pressure transducer, for judging plunger cavity pressure, when plunger is pressed into, when plunger cavity pressure is equal with working pressure, then can open water outlet stop valve, to ensure that boosting is steady and improve the water outlet stop valve life-span.And by electronic component to the pressure monitor in whole control pressurer system, greatly can improve control accuracy, the control (also namely to the automatic control of water inlet stop valve, water outlet stop valve and plunger open and close) of the supercharging of the whole control pressurer system of Automated condtrol, pressurize and step-down is carried out by controller, operate very easy, easy to use, be applicable to applying.
Test medium of the present utility model can the control pressurer system of two-way flow, at least one control pressure line is connected with between tested container and water tank, described control pressure line comprises plunger cavity and crosses liquid pipe, tested container is connected with water tank by described liquid pipe of crossing, described liquid pipe of crossing is provided with water outlet stop valve and water inlet stop valve, the described position crossed between liquid pipe upper water-out stop valve and water inlet stop valve is connected with plunger cavity, coordinates and be provided with plunger in described plunger cavity; Described plunger cavity is connected to tested container by drain pipe, and described drain pipe is connected to tested container, and the drain pipe place of wherein said plunger cavity is provided with outlet valve; And/or described plunger cavity is connected to water tank by feed tube, the feed tube place of described plunger cavity is provided with water intaking valve.
Due to said structure, design of the present utility model can be applied to and existing pressure testing pump structure is improved, thus reduce production cost; Specifically can retain existing pressure testing pump structure is: described plunger cavity is connected to tested container by drain pipe, and described drain pipe is connected to tested container, and the drain pipe place of wherein said plunger cavity is provided with outlet valve.Or described plunger cavity is connected to water tank by feed tube, the feed tube place of described plunger cavity is provided with water intaking valve.Or described plunger cavity is connected to tested container by drain pipe, described drain pipe is connected to tested container, the drain pipe place of wherein said plunger cavity is provided with outlet valve, and described plunger cavity is connected to water tank by feed tube, and the feed tube place of described plunger cavity is provided with water intaking valve.Therefore can transform the various structures of existing test pump and improve, the container that can solve prior art, in pressure maintaining period, be subject to the external action pressure such as (as heat, distortion) and raises, and system does not possess and reduces the technical matters that pressure carrys out constant voltage; Also solving prior art needs the pressure test carrying out segmentation step pressure reducing cannot meet the technical matters of accuracy requirement to some; Also solve pressure controling precision in prior art and be difficult to the technical matters improved again; The stop valve forcing opening and closing can be utilized to replace inlet/outlet valve by design of the present utility model, controlling that plunger moves thus realize medium by pressure feedback can forward and reversed flow, reaches the control of controlled pressure and pressure drop stage; On the basis possessing existing capability, can controlled pressure more accurately, control accuracy reaches ± 0.02MPa; Automatic compensation or step-down are with stability contorting pressure; Accurate step-down controlling functions, breaks through the technical merit of conventional pressure measuring technology.
Test medium of the present utility model can the control pressurer system of two-way flow, is parallel with more than two independently control pressure lines between described tested container and water tank, and the plunger in wherein said control pressure line can cooperatively interact alternating movement.
Due to said structure, article two, more than, independently control pressure line is mutually and be connected between tested container and water tank, the alternating movement and plunger wherein cooperatively interacts, thus make just to form effective cooperation between plunger, when wherein plunger is at front dead point, all the other plungers reach all the other positions, many control pressure lines can be made simultaneously to carry out continuously boosting and buck functionality, thus greatly increase the efficiency of boosting and step-down.
Test medium of the present utility model can the control method of control pressurer system of two-way flow, comprises boosting rectifier control process, holding pressure control process and step-down control procedure;
Wherein boosting rectifier control process is: close water outlet stop valve and unloader, opens water inlet stop valve; Control to return in the process at rear dead point again after plunger moves to front dead point, medium will be drawn into plunger cavity by water inlet stop valve from water tank; Close water inlet stop valve, open water outlet stop valve, control plunger advancement, medium is pressed into tested container by plunger, and the pressure in tested container is raised; If plunger advancement moves to front dead point when not yet reaching goal pressure, can close water outlet stop valve, open water inlet stop valve, plunger retreats again to rear dead point, completes and sucks medium action; Repeatedly operate, until reach goal pressure;
Wherein holding pressure control process is: when tested container is without the need to constant voltage, after control pressurer system reaches goal pressure, and close water outlet stop valve, namely control pressurer system enters packing state; When tested container need do constant voltage pressurize, after control pressurer system reaches goal pressure, do not close water outlet stop valve, stop valve of now intaking is in closed condition, plunger is moved forward and backward according to pressure feedback by controller, and the forward and reverse flowing of control medium reaches constant voltage requirement;
Wherein step-down control procedure is: when tested container controls without the need to pressure reduction, after holding pressure control process completes, directly can open unloader, allow medium by bypass off-load, or directly open water outlet stop valve, water inlet stop valve simultaneously, allow medium return water tank off-load; When tested container need control pressure reduction, after holding pressure control process completes, open water outlet stop valve; Control plunger retreats, and working pressure is equal with plunger cavity pressure and slowly decline, and can stop plunger motion at any time and carry out pressurize again in pressure reduction in decline process; Dead point after plunger falls back on, when working pressure does not also drop to normal pressure, can close water outlet stop valve, and open water inlet stop valve, now plunger cavity pressure is equal with the intake pressure of normal pressure; Control plunger motion to front dead point, close water inlet stop valve, open water outlet stop valve, make working pressure again equal with plunger cavity pressure; Repeatable operation reaches step-down and controls object.
Due to said method, can to the boosting of whole control pressurer system in operational process, pressurize, particularly for pressure drop stage control, breaching conventional art cannot to a step-down control technology difficult problem, thus solves prior art and need the pressure test carrying out segmentation step pressure reducing cannot meet the technical matters of accuracy requirement to some; Stop valve additionally by enforced opening replaces inlet/outlet valve, and controlling that plunger moves thus realize medium by pressure feedback can forward and reversed flow, reaches the control of controlled pressure and pressure drop stage; On the basis possessing existing capability, can controlled pressure more accurately, control accuracy reaches ± 0.02MPa; Automatic compensation or step-down are with stability contorting pressure; Accurate step-down controlling functions, breaks through the technical merit of conventional pressure measuring technology.
Test medium of the present utility model can the control method of control pressurer system of two-way flow, comprises boosting rectifier control process, holding pressure control process and step-down control procedure,
drain pipe in described control pressurer system is by being connected to tested container, and the drain pipe place of wherein said plunger cavity is provided with outlet valve;
Wherein boosting rectifier control process is: close water outlet stop valve and unloader, opens water inlet stop valve, controls to return in the process at rear dead point again after plunger moves to front dead point, and medium will be drawn into plunger cavity by water inlet stop valve from water tank; Close water inlet stop valve, when controlling plunger advancement, outlet valve is automatically opened under differential pressure action, and medium is pressed into tested container by plunger, and the pressure in tested container is raised; If plunger advancement moves to front dead point when not yet reaching goal pressure, can open water inlet stop valve, plunger retreats again to rear dead point, completes and sucks medium action; Repeatedly operate, until reach goal pressure;
Wherein holding pressure control process is: when tested container is without the need to constant voltage, after control pressurer system reaches goal pressure, namely enter packing state; When tested container need do constant voltage pressurize, after control pressurer system reaches goal pressure, open water outlet stop valve, stop valve of now intaking is in closed condition, plunger is moved forward and backward according to pressure feedback by controller, and the forward and reverse flowing of control medium reaches constant voltage requirement;
Wherein step-down control procedure is: when tested container controls without the need to pressure reduction, after holding pressure control process completes, directly can open unloader, allow medium by bypass off-load, or directly open water outlet stop valve, water inlet stop valve simultaneously, allow medium return water tank off-load; ; When tested container need control pressure reduction, after holding pressure control process completes, open water outlet stop valve; Control plunger retreats, and working pressure is equal with plunger cavity pressure and slowly decline, and can stop plunger motion at any time and carry out pressurize again in pressure reduction in decline process; Dead point after plunger falls back on, when working pressure does not also drop to normal pressure, can close water outlet stop valve, and open water inlet stop valve, now plunger cavity pressure is equal with the intake pressure of normal pressure;
plunger cavity pressure is less than working pressure, and outlet valve is in closed condition,control plunger motion to front dead point, close water inlet stop valve, open water outlet stop valve, make working pressure again equal with plunger cavity pressure; Repeatable operation reaches step-down and controls object.
Due to said method, test pump after improvement can be controlled accurately, particularly boosting, pressurize and pressure drop stage control, make original test pump after improving, on the basis keeping rapid pressure, can break through conventional art equally cannot to a step-down control technology difficult problem, and solving prior art needs the pressure test carrying out segmentation step pressure reducing cannot meet the technical matters of accuracy requirement to some; Stop valve additionally by enforced opening replaces inlet/outlet valve, thus realize medium can forward and reversed flow, reach the control of controlled pressure and pressure drop stage; On the basis possessing existing capability, can controlled pressure more accurately, control accuracy reaches ± 0.02MPa; Automatic compensation or step-down are with stability contorting pressure; Accurate step-down controlling functions, breaks through the technical merit of conventional pressure measuring technology.
Test medium of the present utility model can the control method of control pressurer system of two-way flow, and comprise boosting rectifier control process, holding pressure control process and step-down control procedure, the plunger cavity in described control pressurer system is connected to water tank by feed tube
, the feed tube place of described plunger cavity is provided with water intaking valve;
Wherein boosting rectifier control process is: close water outlet stop valve and unloader, open water inlet stop valve, after control plunger moves to front dead point, close water inlet stop valve, controlling plunger returns in the process at rear dead point, and medium will be drawn into plunger cavity by water intaking valve from water tank; When controlling plunger advancement, water intaking valve is automatically closed under hydraulic pressure effect, and open water outlet stop valve, medium is pressed into tested container by water outlet stop valve by plunger, and the pressure in tested container is raised; If plunger advancement moves to front dead point when not yet reaching goal pressure, plunger retreats to rear dead point again, and water intaking valve is automatically opened under hydraulic pressure effect, completes and sucks medium action; Repeatedly operate, until reach goal pressure;
Wherein holding pressure control process is: when tested container is without the need to constant voltage, after control pressurer system reaches goal pressure, namely enter packing state; When tested container need do constant voltage pressurize, after control pressurer system reaches goal pressure, open water outlet stop valve, stop valve of now intaking is in closed condition, moved forward and backward according to pressure feedback by controller, the forward and reverse flowing of control medium reaches constant voltage requirement;
Wherein step-down control procedure is: when tested container controls without the need to pressure reduction, after holding pressure control process completes, directly can open unloader, allow medium by bypass off-load, or directly open water outlet stop valve, water inlet stop valve simultaneously, allow medium return water tank off-load; When tested container need control pressure reduction, after holding pressure control process completes, open water outlet stop valve,
plunger cavity pressure is greater than intake pressure, and water intaking valve is in closed condition; Control plunger retreats, and working pressure is equal with plunger cavity pressure and slowly decline, and can stop plunger motion at any time and carry out pressurize again in pressure reduction in decline process; Dead point after plunger falls back on, when working pressure does not also drop to normal pressure, can close water outlet stop valve, and open water inlet stop valve, now plunger cavity pressure is equal with the intake pressure of normal pressure; Control plunger motion to front dead point, close water inlet stop valve, open water outlet stop valve, make working pressure again equal with plunger cavity pressure; Repeatable operation reaches step-down and controls object.
Due to said method, test pump after improvement can be controlled accurately, particularly boosting, pressurize and pressure drop stage control, make original test pump after improving, enter fast on the basis of plunger cavity at maintenance medium, can break through conventional art equally cannot to a step-down control technology difficult problem, and solving prior art needs the pressure test carrying out segmentation step pressure reducing cannot meet the technical matters of accuracy requirement to some; Stop valve additionally by enforced opening replaces inlet/outlet valve, thus realize medium can forward and reversed flow, reach the control of controlled pressure and pressure drop stage; On the basis possessing existing capability, can controlled pressure more accurately, control accuracy reaches ± 0.02MPa; Automatic compensation or step-down are with stability contorting pressure; Accurate step-down controlling functions, breaks through the technical merit of conventional pressure measuring technology.
Test medium of the present utility model can the control method of control pressurer system of two-way flow, comprises boosting rectifier control process, holding pressure control process and step-down control procedure,
drain pipe in described control pressurer system is connected to tested container, and the drain pipe place of wherein said plunger cavity is provided with outlet valve; Described plunger cavity is connected to water tank by feed tube, and the feed tube place of described plunger cavity is provided with water intaking valve;
Wherein boosting rectifier control process is: close water outlet stop valve, unloader and water inlet stop valve; Control to return in the process at rear dead point again after plunger moves to front dead point, water intaking valve is automatically opened under differential pressure action, and medium will be drawn into plunger cavity by water intaking valve from water tank; Control plunger advancement, outlet valve is automatically opened under differential pressure action, and medium is pressed into tested container by plunger, and the pressure in tested container is raised; If plunger advancement moves to front dead point when not yet reaching goal pressure, plunger retreats again to rear dead point, completes and sucks medium action; Repeatedly operate, until reach goal pressure;
Wherein holding pressure control process is: when tested container is without the need to constant voltage, after control pressurer system reaches goal pressure, namely enter packing state; When tested container need do constant voltage pressurize, after control pressurer system reaches goal pressure, open water outlet stop valve, stop valve of now intaking is in closed condition, plunger is moved forward and backward according to pressure feedback by controller, and the forward and reverse flowing of control medium reaches constant voltage requirement;
Wherein step-down control procedure is: when tested container controls without the need to pressure reduction, after holding pressure control process completes, directly can open unloader, allow medium by bypass off-load, or directly open water outlet stop valve, water inlet stop valve simultaneously, allow medium return water tank off-load; When tested container need control pressure reduction, after holding pressure control process completes, open water outlet stop valve,
plunger cavity pressure is greater than intake pressure, and water intaking valve is in closed condition; Control plunger retreats, and working pressure is equal with plunger cavity pressure and slowly decline, and can stop plunger motion at any time and carry out pressurize again in pressure reduction in decline process; Dead point after plunger falls back on, when working pressure does not also drop to normal pressure, can close water outlet stop valve, and open water inlet stop valve, now plunger cavity pressure is equal with the intake pressure of normal pressure;
plunger cavity pressure is less than working pressure, and outlet valve is in closed condition,control plunger motion to front dead point, close water inlet stop valve, open water outlet stop valve, make working pressure again equal with plunger cavity pressure; Repeatable operation reaches step-down and controls object
.
due to said method,test pump after improvement can be controlled accurately, particularly boosting, pressurize and pressure drop stage control, make original test pump after improving, remain entire infrastructure and the function of existing test pump, namely when system is boosted, close water outlet stop valve and water inlet stop valve, can realize fast while boost function, can break through conventional art equally cannot to a step-down control technology difficult problem, and solving prior art needs the pressure test carrying out segmentation step pressure reducing cannot meet the technical matters of accuracy requirement to some; Stop valve additionally by enforced opening replaces inlet/outlet valve, and controlling that plunger moves thus realize medium by pressure feedback can forward and reversed flow, reaches the control of controlled pressure and pressure drop stage; On the basis possessing existing capability, can controlled pressure more accurately, control accuracy reaches ± 0.02MPa; Automatic compensation or step-down are with stability contorting pressure; Accurate step-down controlling functions, breaks through the technical merit of conventional pressure measuring technology.
Test medium of the present utility model can the control method of control pressurer system of two-way flow, comprises boosting rectifier control process, holding pressure control process and step-down control procedure,
tested container in described control pressurer system and be parallel with two independently control pressure line A and control pressure line B between water tank, the plunger wherein in two control pressure lines also can carry out alternating movement simultaneously;
Wherein boosting rectifier control process is: close water outlet stop valve and unloader, opens water inlet stop valve;
in control pressure line Acontrol to return in the process at rear dead point again after plunger moves to front dead point, when medium will be drawn into plunger cavity from water tank by water inlet stop valve,
in control pressure line Bplunger moves to front dead point after returning rear dead point again;
in control pressure line Aclose water inlet stop valve, open water outlet stop valve, control plunger and move at dead point forward from rear dead point, medium is pressed into tested container by plunger, when the pressure in tested container is raised,
in control pressure line Bplunger returns rear dead point after moving to front dead point again, and medium will be drawn into plunger cavity from water tank by water inlet stop valve; If
in control pressure line Aplunger advancement moves to front dead point when not yet reaching goal pressure, can close
in control pressure line Awater outlet stop valve, opens
control pressure line Awater inlet stop valve, simultaneously
in control pressure line Bopen water outlet stop valve, control plunger and move at dead point forward from rear dead point, medium is pressed into tested container by plunger; Simultaneously
in control pressure line Aplunger retreats again to rear dead point, completes and sucks medium action; Repeatedly operate,
control pressure line A and control pressure line B replaces supercharging, and boost process can realize continuously uninterrupted boosting,until reach goal pressure;
Wherein holding pressure control process is: when tested container is without the need to constant voltage, after control pressurer system reaches goal pressure, and close water outlet stop valve, namely control pressurer system enters packing state; When tested container need do constant voltage pressurize, after control pressurer system reaches goal pressure, do not close water outlet stop valve, stop valve of now intaking is in closed condition,
in control pressure line A and control pressure line Bplunger can move forward and backward individually or simultaneously, and the forward and reverse flowing of control medium reaches constant voltage requirement;
Wherein step-down control procedure is: when tested container controls without the need to pressure reduction, after holding pressure control process completes, directly can open unloader, allow medium by bypass off-load, or directly open water outlet stop valve, water inlet stop valve simultaneously, allow medium return water tank off-load; When tested container need control pressure reduction,
in control pressure line Aopen water outlet stop valve, control plunger and retreat, working pressure is equal with plunger cavity pressure and slowly decline, and can stop plunger motion at any time and carry out pressurize again in pressure reduction in decline process, meanwhile,
in control pressure line Bwater outlet stop valve is closed, and water inlet stop valve is opened;
When
in control pressure line Aplunger falls back on rear dead point, when working pressure does not also drop to normal pressure, can close water outlet stop valve, and open water inlet stop valve, now plunger cavity pressure is equal with the intake pressure of normal pressure, meanwhile,
open in control pressure line Bwater outlet stop valve, plunger retreats, and working pressure is equal with plunger cavity pressure and slowly decline, and can stop plunger motion at any time and carry out pressurize again in pressure reduction in decline process;
When
in control pressure line Bplunger falls back on rear dead point, when working pressure does not also drop to normal pressure,
in control pressure line Aplunger motion, to front dead point, is closed water inlet stop valve, is opened water outlet stop valve, make working pressure again equal with plunger cavity pressure; Repeatable operation,
control pressure line A and control pressure line B alternating movement, pressure reduction can realize continuously uninterrupted step-down,reach step-down and control object.
Due to said method, by the alternating movement of two plungers, two plunger motion directions are just in time contrary, and namely left side plunger is when front dead point, and the right plunger, at rear dead point, guarantees continuous print boosting, buck functionality; Boosting wherein in two control pressure lines, buck functionality are carried out simultaneously, greatly can improve the efficiency of boosting and step-down, reduce the running time, save human cost.Break through conventional art cannot to a step-down control technology difficult problem simultaneously, and solving prior art needs the pressure test carrying out segmentation step pressure reducing cannot meet the technical matters of accuracy requirement to some; Stop valve additionally by enforced opening replaces inlet/outlet valve, and controlling that plunger moves thus realize medium by pressure feedback can forward and reversed flow, reaches the control of controlled pressure and pressure drop stage; On the basis possessing existing capability, can controlled pressure more accurately, control accuracy reaches ± 0.02MPa; Automatic compensation or step-down are with stability contorting pressure; Accurate step-down controlling functions, breaks through the technical merit of conventional pressure measuring technology.
In sum, owing to have employed technique scheme, the beneficial effects of the utility model are:
1, test medium of the present utility model can the control pressurer system of two-way flow, mainly solve the container of prior art in pressure maintaining period, be subject to the external action pressure such as (as heat, distortion) to raise, system does not possess and reduces the technical matters that pressure carrys out constant voltage; Also solving prior art needs the pressure test carrying out segmentation step pressure reducing cannot meet the technical matters of accuracy requirement to some; Also solve pressure controling precision in prior art and be difficult to the technical matters improved again;
2, test medium of the present utility model can the control pressurer system of two-way flow, the stop valve forcing opening and closing is utilized to replace inlet/outlet valve, controlling that plunger moves thus realize medium by pressure feedback can forward and reversed flow, reaches the control of controlled pressure and pressure drop stage; On the basis possessing existing capability, can controlled pressure more accurately, control accuracy reaches ± 0.02MPa; Automatic compensation or step-down are with stability contorting pressure; Accurate step-down controlling functions, breaks through the technical merit of conventional pressure measuring technology.
Accompanying drawing explanation
The utility model illustrates by example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is the test pump control system schematic diagram of prior art;
Fig. 2 is the structural representation of embodiment 1 in the utility model;
Fig. 3 is the structural representation of embodiment 2 in the utility model;
Fig. 4 is the structural representation of embodiment 3 in the utility model;
Fig. 5 is the structural representation of embodiment 4 in the utility model;
Fig. 6 is the structural representation of embodiment 5 in the utility model.
Mark in figure: 11-stage columnar plug, 12-boosting rectifier control valve, 13-pressure unit, 14-retaining valve, 15-container unloader, 16-outlet valve, 17-water intaking valve, 18-water tank; 21-plunger position pick-up unit, 22-plunger, 23-water outlet stop valve, 24-container pressure sensor, 25-unloader, 26-plunger cavity pressure transducer, 27-is intake stop valve, 28-water tank, 29-water intaking valve, 30-outlet valve, 31-retaining valve, P1-low pressure is intake, P2-plunger cavity pressure, P3-working pressure.
Embodiment
All features disclosed in this instructions, or the step in disclosed all methods or process, except mutually exclusive feature and/or step, all can combine by any way.
Arbitrary feature disclosed in this instructions (comprising any accessory claim, summary), unless specifically stated otherwise, all can be replaced by other equivalences or the alternative features with similar object.That is, unless specifically stated otherwise, each feature is an example in a series of equivalence or similar characteristics.
Embodiment 1
As shown in Figure 2, test medium of the present utility model can the control pressurer system of two-way flow, at least one control pressure line is connected with between tested container and water tank 28, described control pressure line comprises plunger cavity, feed tube and drain pipe, coordinate in described plunger cavity and be provided with plunger 22, described plunger cavity is connected to tested container by drain pipe, and described drain pipe is provided with water outlet stop valve 23; Described plunger cavity is connected to water tank 28 by feed tube, and described feed tube is provided with into water stop valve 27.
Test medium of the present utility model can the control method of control pressurer system of two-way flow, comprises boosting rectifier control process, holding pressure control process and step-down control procedure;
Wherein boosting rectifier control process is: close water outlet stop valve 23 and unloader 25, opens water inlet stop valve 27; Control to return rear dead point again after plunger 22 moves to front dead point, medium will be drawn into plunger cavity by water inlet stop valve 27 from water tank 28; Close water inlet stop valve 27, open water outlet stop valve 23, control plunger 22 and advance, medium is pressed into tested container by plunger 22, and the pressure in tested container is raised; If when plunger 22 forward travel not yet reaches goal pressure to front dead point, can close water outlet stop valve 23, open water inlet stop valve 27, plunger 22 retreats again to rear dead point, completes and sucks medium action; Repeatedly operate, until reach goal pressure;
Wherein holding pressure control process is: when tested container is without the need to constant voltage, after control pressurer system reaches goal pressure, and close water outlet stop valve 23, namely control pressurer system enters packing state; When tested container need do constant voltage pressurize, after control pressurer system reaches goal pressure, do not close water outlet stop valve 23, stop valve 27 of now intaking is in closed condition, plunger 22 is moved forward and backward according to pressure feedback by controller, and the forward and reverse flowing of control medium reaches constant voltage requirement;
Wherein step-down control procedure is: when tested container controls without the need to pressure reduction, after holding pressure control process completes, can directly open unloader 25, allow medium by bypass off-load, or directly open water outlet stop valve 23, water inlet stop valve 27 simultaneously, allow medium return water tank off-load; When tested container need control pressure reduction, after holding pressure control process completes, open water outlet stop valve 23; Control plunger 22 to retreat, working pressure is equal with plunger cavity pressure and slowly decline, and can stop plunger motion at any time and carry out pressurize again in pressure reduction in decline process; Dead point after plunger 22 falls back on, when working pressure does not also drop to normal pressure, can close water outlet stop valve 23, and open water inlet stop valve 27, now plunger cavity pressure is equal with the intake pressure of normal pressure; Control plunger 22 and move to front dead point, close water inlet stop valve 27, open water outlet stop valve 23, make working pressure again equal with plunger cavity pressure; Repeatable operation reaches step-down and controls object.
Embodiment 2
As shown in Figure 2, embodiment 2 is similar to embodiment 1, on embodiment 1 basis, adopted by pressure monitor in whole system sensor to carry out induction to detect, when sensor detects corresponding force value and by corresponding signal transmission to controller, controller is according to the program preset, stop valve wherein and plunger are controlled, realize the automation mechanized operation of whole control, be specially on described plunger cavity and be connected with plunger cavity pressure transducer 26, described drain pipe is provided with container pressure sensor 24, and described plunger 22 is provided with plunger position pick-up unit 21; Also transmission of signal is to controller for the connection of described plunger cavity pressure transducer 26, container pressure sensor 24 and plunger position pick-up unit 21, and described controller connects and controlled into water stop valve 27, water outlet stop valve 23 and plunger 22.In system, plunger position detecting device, unloader, plunger cavity pressure transducer are selectable unit, and plunger position pick-up unit is used for automatic decision plunger position; Unloader can direct discharge system pressure; Plunger cavity pressure transducer, for judging plunger cavity pressure, when plunger is pressed into, when plunger cavity pressure is equal with working pressure, then can open water outlet stop valve, to ensure that boosting is steady and improve the water outlet stop valve life-span.Therefore the utility model is by the detection of each sensor to pressure, after controller then accepts each force value, carry out corresponding stop valve open and close action according to pre-set programs, control the movement of plunger simultaneously, thus realize operation automation of the present utility model.
Embodiment 3
As shown in Figure 3, test medium of the present utility model can the control pressurer system of two-way flow, at least one control pressure line is connected with between tested container and water tank 28, described control pressure line comprises plunger cavity and crosses liquid pipe, tested container is connected with water tank 28 by described liquid pipe of crossing, described liquid pipe of crossing is provided with water outlet stop valve 23 and water inlet stop valve 27, and the described position crossed between liquid pipe upper water-out stop valve 23 and water inlet stop valve 27 is connected with plunger cavity, coordinates and be provided with plunger 22 in described plunger cavity;
described plunger cavity is connected to tested container by drain pipe, and the drain pipe place of wherein said plunger cavity is provided with outlet valve 30; Described plunger cavity is connected to water tank 28 by feed tube, and the feed tube place of described plunger cavity is provided with water intaking valve 29.
Visible the utility model remains entire infrastructure and the function of existing pump, namely when system is boosted, closes water outlet stop valve and water inlet stop valve, can realize boost function fast, to constant voltage and buck functionality.
Test medium of the present utility model can the control method of control pressurer system of two-way flow, comprises boosting rectifier control process, holding pressure control process and step-down control procedure;
Wherein boosting rectifier control process is: close water outlet stop valve 23 and unloader 25, opens water inlet stop valve 27; After control plunger 22 moves to front dead point, close water inlet stop valve 27, control plunger 22 and return in the process at rear dead point, water intaking valve 29 is automatically opened under differential pressure action, and medium will be drawn into plunger cavity by water intaking valve 29 from water tank 28; Control plunger 22 to advance, outlet valve 30 is automatically opened under differential pressure action, and medium by the tested container of press-in, makes the pressure in tested container raise by plunger 22; If when plunger 22 forward travel not yet reaches goal pressure to front dead point, plunger 22 retreats again to rear dead point, completes and sucks medium action; Repeatedly operate, until reach goal pressure;
Wherein holding pressure control process is: when tested container is without the need to constant voltage, after control pressurer system reaches goal pressure, namely enter packing state; When tested container need do constant voltage pressurize, after control pressurer system reaches goal pressure, open water outlet stop valve 23, stop valve 27 of now intaking is in closed condition, plunger 22 is moved forward and backward according to pressure feedback by controller, and the forward and reverse flowing of control medium reaches constant voltage requirement;
Wherein step-down control procedure is: when tested container controls without the need to pressure reduction, after holding pressure control process completes, can directly open unloader 25, allow medium by bypass off-load, or directly open water outlet stop valve 23, water inlet stop valve 27 simultaneously, allow medium return water tank off-load; When tested container need control pressure reduction, after holding pressure control process completes, open water outlet stop valve 23,
plunger cavity pressure is greater than intake pressure, and water intaking valve 29 is in closed condition; Control plunger 22 to retreat, working pressure is equal with plunger cavity pressure and slowly decline, and can stop plunger motion at any time and carry out pressurize again in pressure reduction in decline process; Dead point after plunger 22 falls back on, when working pressure does not also drop to normal pressure, can close water outlet stop valve 23, and open water inlet stop valve 27, now plunger cavity pressure is equal with the intake pressure of normal pressure;
plunger cavity pressure is less than working pressure, and outlet valve 30 is in closed condition,control plunger 22 and move to front dead point, close water inlet stop valve 27, open water outlet stop valve 23, make working pressure again equal with plunger cavity pressure; Repeatable operation reaches step-down and controls object.
Embodiment 4
As shown in Figure 4, test medium of the present utility model can the control pressurer system of two-way flow, at least one control pressure line is connected with between tested container and water tank 28, described control pressure line comprises plunger cavity and crosses liquid pipe, tested container is connected with water tank 28 by described liquid pipe of crossing, described liquid pipe of crossing is provided with water outlet stop valve 23 and water inlet stop valve 27, and the described position crossed between liquid pipe upper water-out stop valve 23 and water inlet stop valve 27 is connected with plunger cavity, coordinates and be provided with plunger 22 in described plunger cavity; Described plunger cavity is connected to water tank 28 by feed tube, and the feed tube place of described plunger cavity is provided with water intaking valve 29.
Visible the utility model remains with the feed liquor function of former test pump, can feed medium to express delivery in plunger cavity.
Test medium of the present utility model can the control method of control pressurer system of two-way flow, comprises boosting rectifier control process, holding pressure control process and step-down control procedure,
plunger cavity in described control pressurer system is connected to water tank 28 by feed tube, and the feed tube place of described plunger cavity is provided with water intaking valve 29;
Wherein boosting rectifier control process is: close water outlet stop valve 23 and unloader 25, controls to return rear dead point again after plunger 22 moves to front dead point, and medium will be drawn into plunger cavity by water intaking valve 29 from water tank 28; When control plunger 22 advances, water intaking valve 29 is automatically closed under differential pressure action, and open water outlet stop valve 23, medium is pressed into tested container by water outlet stop valve 23 by plunger 22, and the pressure in tested container is raised; If when plunger 22 forward travel not yet reaches goal pressure to front dead point, plunger 22 retreats again to rear dead point, and water intaking valve 29 is automatically opened under differential pressure action, completes and sucks medium action; Repeatedly operate, until reach goal pressure;
Wherein holding pressure control process is: when tested container is without the need to constant voltage, after control pressurer system reaches goal pressure, namely enter packing state; When tested container need do constant voltage pressurize, after control pressurer system reaches goal pressure, open water outlet stop valve 23, stop valve 27 of now intaking is in closed condition, plunger 22 is moved forward and backward according to pressure feedback by controller, and the forward and reverse flowing of control medium reaches constant voltage requirement;
Wherein step-down control procedure is: when tested container controls without the need to pressure reduction, after holding pressure control process completes, can directly open unloader 25, allow medium by bypass off-load, or directly open water outlet stop valve 23, water inlet stop valve 27 simultaneously, allow medium return water tank off-load; When tested container need control pressure reduction, after holding pressure control process completes, open water outlet stop valve 23,
plunger cavity pressure is greater than intake pressure, and water intaking valve 29 is in closed condition; Control plunger 22 to retreat, working pressure is equal with plunger cavity pressure and slowly decline, and can stop plunger 22 motion at any time and carry out pressurize again in pressure reduction in decline process; Dead point after plunger 22 falls back on, when working pressure does not also drop to normal pressure, can close water outlet stop valve 23, and open water inlet stop valve 27, now plunger cavity pressure is equal with the intake pressure of normal pressure; Control plunger 22 and move to front dead point, close water inlet stop valve 27, open water outlet stop valve 23, make working pressure again equal with plunger cavity pressure; Repeatable operation reaches step-down and controls object.
Embodiment 5
As shown in Figure 5, test medium of the present utility model can the control pressurer system of two-way flow, at least one control pressure line is connected with between tested container and water tank 28, described control pressure line comprises plunger cavity and crosses liquid pipe, tested container is connected with water tank 28 by described liquid pipe of crossing, described liquid pipe of crossing is provided with water outlet stop valve 23 and water inlet stop valve 27, and the described position crossed between liquid pipe upper water-out stop valve 23 and water inlet stop valve 27 is connected with plunger cavity, coordinates and be provided with plunger 22 in described plunger cavity; Described plunger cavity is connected to tested container by drain pipe, and described drain pipe is connected to tested container, and the drain pipe place of wherein said plunger cavity is provided with outlet valve 30.Visible the utility model retains the pressurized construction of existing test pump, can the boosting of express delivery ground.
Test medium of the present utility model can the control method of control pressurer system of two-way flow, comprises boosting rectifier control process, holding pressure control process and step-down control procedure,
drain pipe in described control pressurer system is connected to tested container, and the drain pipe place of wherein said plunger cavity is provided with outlet valve 30;
Wherein boosting rectifier control process is: close water outlet stop valve 23 and unloader 25, opens water inlet stop valve 27, controls to return rear dead point again after plunger 22 moves to front dead point, and medium will be drawn into plunger cavity by water inlet stop valve 27 from water tank 28; Close water inlet stop valve 27, when control plunger 22 advances, outlet valve 30 is automatically opened under differential pressure action, and medium is pressed into tested container by plunger 22, and the pressure in tested container is raised; If when plunger 22 forward travel not yet reaches goal pressure to front dead point, can open water inlet stop valve 27, plunger 22 retreats again to rear dead point, completes and sucks medium action; Repeatedly operate, until reach goal pressure;
Wherein holding pressure control process is: when tested container is without the need to constant voltage, after control pressurer system reaches goal pressure, namely enter packing state; When tested container need do constant voltage pressurize, after control pressurer system reaches goal pressure, open water outlet stop valve 23, stop valve 27 of now intaking is in closed condition, plunger 22 is moved forward and backward according to pressure feedback by controller, and the forward and reverse flowing of control medium reaches constant voltage requirement;
Wherein step-down control procedure is: when tested container controls without the need to pressure reduction, after holding pressure control process completes, can directly open unloader 25, allow medium by bypass off-load, or directly open water outlet stop valve 23, water inlet stop valve 27 simultaneously, allow medium return water tank off-load; When tested container need control pressure reduction, after holding pressure control process completes, open water outlet stop valve 23; Control plunger 22 to retreat, working pressure is equal with plunger cavity pressure and slowly decline, and can stop plunger 22 motion at any time and carry out pressurize again in pressure reduction in decline process; Dead point after plunger 22 falls back on, when working pressure does not also drop to normal pressure, can close water outlet stop valve 23, and open water inlet stop valve 27, now plunger cavity pressure is equal with the intake pressure of normal pressure;
plunger cavity pressure is less than working pressure, and outlet valve 30 is in closed condition,control plunger 22 and move to front dead point, close water inlet stop valve 27, open water outlet stop valve 23, make working pressure again equal with plunger cavity pressure; Repeatable operation reaches step-down and controls object.
Embodiment 6
Embodiment 6 and embodiment 3, 4 is similar with 5, in embodiment 3, on 4 and 5 bases, adopted by pressure monitor in whole system sensor to carry out induction to detect, when sensor detects corresponding force value and by corresponding signal transmission to controller, controller is according to the program preset, stop valve wherein and plunger are controlled, realize the automation mechanized operation of whole control, be specially and describedly cross the position that liquid pipe is provided with between water outlet stop valve 23 and water inlet stop valve 27 and be provided with plunger cavity pressure transducer 26, described liquid pipe of crossing is provided with container pressure sensor 24, described plunger 22 is provided with plunger position pick-up unit 21, also transmission of signal is to controller for the connection of described plunger cavity pressure transducer 26, container pressure sensor 24 and plunger position pick-up unit 21, and described controller connects and controlled into water stop valve 27, water outlet stop valve 23 and plunger 22.In system, plunger position detecting device, unloader, plunger cavity pressure transducer are selectable unit, and plunger position pick-up unit is used for automatic decision plunger position; Unloader can direct discharge system pressure; Plunger cavity pressure transducer, for judging plunger cavity pressure, when plunger is pressed into, when plunger cavity pressure is equal with working pressure, then can open water outlet stop valve, to ensure that boosting is steady and improve the water outlet stop valve life-span.Therefore the utility model is by the detection of each sensor to pressure, after controller then accepts each force value, carry out corresponding stop valve open and close action according to pre-set programs, control the movement of plunger simultaneously, thus realize operation automation of the present utility model.
Embodiment 7
As shown in Figure 6, tested container in this embodiment and be parallel with two independently control pressure lines between water tank 28, wherein concrete control pressure line is identical with the control pressure line in embodiment 1 and 2, also namely described control pressure line comprises plunger cavity, feed tube and drain pipe, coordinate in described plunger cavity and be provided with plunger 22, described plunger cavity is connected to tested container by drain pipe, and described drain pipe is provided with water outlet stop valve 23; Described plunger cavity is connected to water tank 28 by feed tube, and described feed tube is provided with into water stop valve 27.
Plunger 22 in wherein said control pressure line can cooperatively interact alternating movement.Three and above independently control pressure line can be cooperatively interacted setting according to this embodiment, plunger 22 is wherein cooperatively interacted alternating movement simultaneously, coordinate by controller simultaneously and each stop valve is controlled, thus complete the automation mechanized operation of cooperation, continuous print boosting, buck functionality can be guaranteed.
Test medium of the present utility model can the control method of control pressurer system of two-way flow, comprise boosting rectifier control process, holding pressure control process and step-down control procedure, tested container in described control pressurer system and be parallel with two independently control pressure line A and control pressure line B between water tank 28, the plunger 22 wherein in two control pressure lines can
carry out alternating movement simultaneously;
Wherein boosting rectifier control process is: close water outlet stop valve 23 and unloader 25, opens water inlet stop valve 27;
in control pressure line Acontrol to return rear dead point again after plunger 22 moves to front dead point, when medium will be drawn into plunger cavity from water tank 28 by water inlet stop valve 27,
in control pressure line Bplunger 22 moves to front dead point after returning rear dead point again;
in control pressure line Aclose water inlet stop valve 27, open water outlet stop valve 23, control plunger 22 and move at dead point forward from rear dead point, medium is pressed into tested container by plunger 22, when the pressure in tested container is raised,
in control pressure line Bplunger 22 returns rear dead point after moving to front dead point again, and medium will be drawn into plunger cavity from water tank 28 by water inlet stop valve 27; If
in control pressure line Awhen plunger 22 forward travel not yet reaches goal pressure to front dead point, can close
in control pressure line Awater outlet stop valve 23, opens
control pressure line Awater inlet stop valve 27, simultaneously
in control pressure line Bopen water outlet stop valve 23, control plunger 22 and move at dead point forward from rear dead point, medium is pressed into tested container by plunger 22; Simultaneously
in control pressure line Aplunger 22 retreats again to rear dead point, completes and sucks medium action; Repeatedly operate,
control pressure line A and control pressure line B replaces supercharging, and boost process can realize continuously uninterrupted boosting,until reach goal pressure;
Wherein holding pressure control process is: when tested container is without the need to constant voltage, after control pressurer system reaches goal pressure, and close water outlet stop valve 23, namely control pressurer system enters packing state; When tested container need do constant voltage pressurize, after control pressurer system reaches goal pressure, do not close water outlet stop valve 23, stop valve 27 of now intaking is in closed condition,
in control pressure line A and control pressure line Bplunger 22 can move forward and backward individually or simultaneously, and alternately the forward and reverse flowing of control medium reaches constant voltage requirement simultaneously;
Wherein step-down control procedure is: when tested container controls without the need to pressure reduction, after holding pressure control process completes, can directly open unloader 25, allow medium by bypass off-load, or directly open water outlet stop valve 23, water inlet stop valve 27 simultaneously, allow medium return water tank off-load; When tested container need control pressure reduction,
in control pressure line Aopen water outlet stop valve 23, control plunger 22 and retreat, working pressure is equal with plunger cavity pressure and slowly decline, and can stop plunger motion at any time and carry out pressurize again in pressure reduction in decline process, meanwhile,
in control pressure line Bwater outlet stop valve 23 is closed, and water inlet stop valve 27 is opened;
When
in control pressure line Aplunger 22 falls back on rear dead point, when working pressure does not also drop to normal pressure, can close water outlet stop valve 23, and open water inlet stop valve 27, now plunger cavity pressure is equal with the intake pressure of normal pressure, meanwhile,
open in control pressure line Bwater outlet stop valve 23, plunger 22 retreats, and working pressure is equal with plunger cavity pressure and slowly decline, and can stop plunger motion at any time and carry out pressurize again in pressure reduction in decline process;
When
in control pressure line Bplunger 22 falls back on rear dead point, when working pressure does not also drop to normal pressure,
in control pressure line Aplunger 22 moves to front dead point, closes water inlet stop valve 27, opens water outlet stop valve 23, make working pressure again equal with plunger cavity pressure; Repeatable operation
, pressure reduction can realize continuously uninterrupted step-down,reach step-down and control object.
According to the principle of embodiment 7, can by wherein
control pressure line adopts the structure of above-described embodiment 3,4,5 and 6, and its control method obtains by embodiment 7.
To sum up, the utility model utilizes the stop valve forcing opening and closing to replace inlet/outlet valve, controlling that plunger moves thus realize medium by pressure feedback can forward and reversed flow, and coordinating to link and reach the object of controlled pressure and pressure drop stage simultaneously by stop valve and plunger; Make the utility model on the basis possessing existing capability, can controlled pressure more accurately, control accuracy reaches ± 0.02MPa; Automatic compensation or step-down are with stability contorting pressure; Accurate step-down controlling functions.Therefore the utility model mainly solves the container of prior art in pressure maintaining period, is subject to the external action pressure such as (as heat, distortion) and raises, and system does not possess and reduces the technical matters that pressure carrys out constant voltage; Also solving prior art needs the pressure test carrying out segmentation step pressure reducing cannot meet the technical matters of accuracy requirement to some; Also solve test pump control accuracy in prior art and be difficult to the technical matters improved again.
The utility model is not limited to aforesaid embodiment.The utility model expands to any new feature of disclosing in this manual or any combination newly, and the step of the arbitrary new method disclosed or process or any combination newly.
Claims (5)
1. a test medium can the control pressurer system of two-way flow, it is characterized in that: between tested container and water tank (28), be connected with at least one control pressure line, described control pressure line comprises plunger cavity, feed tube and drain pipe, coordinate in described plunger cavity and be provided with plunger (22), described plunger cavity is connected to tested container by drain pipe, and described drain pipe is provided with water outlet stop valve (23); Described plunger cavity is connected to water tank (28) by feed tube, and described feed tube is provided with into water stop valve (27).
2. test medium as claimed in claim 1 can the control pressurer system of two-way flow, it is characterized in that: described plunger cavity is connected with plunger cavity pressure transducer (26), described drain pipe is provided with container pressure sensor (24), and described plunger (22) is provided with plunger position pick-up unit (21); Also transmission of signal is to controller for described plunger cavity pressure transducer (26), container pressure sensor (24) and plunger position pick-up unit (21) connection, and described controller connects and controlled into water stop valve (27), water outlet stop valve (23) and plunger (22).
3. a test medium can the control pressurer system of two-way flow, it is characterized in that: between tested container and water tank (28), be connected with at least one control pressure line, described control pressure line comprises plunger cavity and crosses liquid pipe, tested container is connected with water tank (28) by described liquid pipe of crossing, described liquid pipe of crossing is provided with water outlet stop valve (23) and water inlet stop valve (27), the described position crossed between liquid pipe upper water-out stop valve (23) and water inlet stop valve (27) is connected with plunger cavity, coordinates and be provided with plunger (22) in described plunger cavity; Described plunger cavity is connected to tested container by drain pipe, and described drain pipe is connected to tested container, and the drain pipe place of wherein said plunger cavity is provided with outlet valve (30); And/or described plunger cavity is connected to water tank (28) by feed tube, the feed tube place of described plunger cavity is provided with water intaking valve (29).
4. test medium as claimed in claim 3 can the control pressurer system of two-way flow, it is characterized in that: the described excessively position that liquid pipe is provided with between water outlet stop valve (23) and water inlet stop valve (27) is provided with plunger cavity pressure transducer (26), described liquid pipe of crossing is provided with container pressure sensor (24), and described plunger (22) is provided with plunger position pick-up unit (21); Also transmission of signal is to controller for described plunger cavity pressure transducer (26), container pressure sensor (24) and plunger position pick-up unit (21) connection, and described controller connects and controlled into water stop valve (27), water outlet stop valve (23) and plunger (22).
5. the test medium as described in one of Claims 1-4 can the control pressurer system of two-way flow, it is characterized in that: be parallel with more than two independently control pressure lines between described tested container and water tank (28), the plunger (22) in wherein said control pressure line can cooperatively interact alternating movement.
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| CN201420775523.9U CN204270164U (en) | 2014-12-10 | 2014-12-10 | A kind of test medium can the control pressurer system of two-way flow |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106094913A (en) * | 2016-08-12 | 2016-11-09 | 四川杰特机器有限公司 | A kind of supertension pressure testing system and control method thereof |
| CN104460726B (en) * | 2014-12-10 | 2017-02-01 | 四川杰特机器有限公司 | Pressure control system and method with pressure test medium capable of conducting bidirectional flow |
| CN108255210A (en) * | 2017-12-27 | 2018-07-06 | 中国船舶重工集团公司第七0研究所 | A kind of high-precision pressure control system and method for autoclave pressure |
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2014
- 2014-12-10 CN CN201420775523.9U patent/CN204270164U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104460726B (en) * | 2014-12-10 | 2017-02-01 | 四川杰特机器有限公司 | Pressure control system and method with pressure test medium capable of conducting bidirectional flow |
| CN106094913A (en) * | 2016-08-12 | 2016-11-09 | 四川杰特机器有限公司 | A kind of supertension pressure testing system and control method thereof |
| CN106094913B (en) * | 2016-08-12 | 2023-03-14 | 四川杰特机器有限公司 | Ultrahigh pressure test system and control method thereof |
| CN108255210A (en) * | 2017-12-27 | 2018-07-06 | 中国船舶重工集团公司第七0研究所 | A kind of high-precision pressure control system and method for autoclave pressure |
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