CN207195113U - Prepressing type pulse buffer applied to injecting systems - Google Patents
Prepressing type pulse buffer applied to injecting systems Download PDFInfo
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- CN207195113U CN207195113U CN201720847547.4U CN201720847547U CN207195113U CN 207195113 U CN207195113 U CN 207195113U CN 201720847547 U CN201720847547 U CN 201720847547U CN 207195113 U CN207195113 U CN 207195113U
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Abstract
The utility model discloses a kind of prepressing type pulsation damper applied to injecting systems, including：Outer cylinder body, current stabilization part, inlet honeycomb duct and outlet mozzle.Be provided with deformable diaphragm in outer cylinder body, the inner surface of diaphragm and outer cylinder body cooperatively forms spaced liquid chamber and air chamber, has the entrance and exit for connecting liquid chamber on outer cylinder body；Current stabilization part is located in liquid chamber and separates the entrance and exit of liquid chamber, has via on current stabilization part；Inlet honeycomb duct connects the entrance of liquid chamber；Export the outlet of mozzle connection liquid chamber.According to the prepressing type pulsation damper of the present utility model applied to injecting systems, back pressure can be applied to and change operating mode, effectively absorb injection loop pressure oscillation.
Description
Technical field
The invention belongs to derived energy chemical industry field of fluid, more particularly to a kind of prepressing type applied to injecting systems
Pulse buffer.
Background technology
Derived energy chemical industry field of fluid, the accurate measuring pump for exporting liquid inventory generally use.Due to measuring pump
It is a kind of displacement pump, such as plunger pump, membrane pump, by the reciprocating motion of internals with pumped (conveying) medium, therefore induction system
Periodic pulsation occurs in middle rate-of flow and pressure.
The operation principle that displacement pump produces a stroke of cycle fluctuation pressure and flow is：When the drive mechanism of displacement pump
When being promoted to induction system, pump pressure is more than induction system, output flow；When the drive mechanism of displacement pump is retracted, expand in pump
Holding pressure reduces, and the pressure of induction system is more than pump pressure；When the drive mechanism of displacement pump promotes to induction system again, then
Secondary output flow.Due to the operation principle of displacement pump, cause the pulsation of induction system flow and pressure cycle, medium can be influenceed
The accurate control and measurement of flow, induction system is impacted, causes phenomena such as pipeline vibration.
Pulsation damper is the common component for eliminating induction system pulsation, by gas chamber volume change come smoothly by displacement pump
Reciprocating motion caused by piping flow and pressure fluctuation phenomenon.Pulsation damper is installed in the induction system for have displacement pump,
Can eliminate flow and pressure oscillation, protect pipe-line system be not pressurized the impact of fluctuation or water hammer cause system damage,
Reducing cavitation improves the service behaviour of pump, reduces pipeline vibration.
Pulsation damper technology in correlation technique mainly includes the board-like diaphragm type buffer of gasbag-type peace.Gasbag-type delays
It is more complicated to rush device manufacturing process, and bag material is more using nitrile rubber, fluorubber, ethylene propylene diene rubber etc., corrosion resistance compared with
Difference, it is difficult to ensure the long-term reliability service in the induction system of different medium, the solution pollution of conveying is caused after dissolving；It is flat
The reciprocating motion deformation frequencies of diaphragm buffer are high, and fatigue damage easily occurs, and are not suitable for the situation of back pressure change.Back pressure changes
The situation of change is relatively conventional in derived energy chemical industry, such as induction system such as circulates as an injecting systems to other systems
When water system is injected.Because the type selecting of buffer is determined by the flow and lift of measuring pump, thus when injecting systems back pressure with
When the change of circulation operating mode and changing, the air chamber of buffer may not be suitable for the operating mode of back pressure change.
The content of the invention
Due to the operation principle of displacement pump, cause the pulsation of induction system flow and pressure cycle, medium flow field can be influenceed
The accurate control and measurement of amount, induction system is impacted, causes phenomena such as pipeline vibration.
It is contemplated that at least solves one of technical problem in correlation technique to a certain extent.Therefore, the present invention
One purpose is to propose a kind of prepressing type pulse buffer having applied to injecting systems, reduces the impact to induction system
And reduce vibration.
Prepressing type pulse buffer applied to injecting systems according to embodiments of the present invention, including：Outer cylinder body, current stabilization
Part, inlet honeycomb duct and outlet mozzle.Deformable diaphragm, the diaphragm and the outer cylinder body are provided with the outer cylinder body
Inner surface cooperatively forms spaced liquid chamber and air chamber, has the entrance for connecting the liquid chamber on the outer cylinder body
And outlet；The current stabilization part is located in the liquid chamber and separates the entrance and exit of the liquid chamber, the current stabilization part
It is upper that there is via；The inlet honeycomb duct connects the entrance of the liquid chamber；The outlet mozzle connects the fluid chamber
The outlet of room.
Prepressing type pulse buffer applied to injecting systems according to embodiments of the present invention, reduces and induction system is rushed
Hit and reduce vibration.
In certain embodiments, the current stabilization part includes：Stabilier and homogenizing plate.The stabilier is located at the fluid chamber
Interior simultaneously separates the entrance and exit of the liquid chamber；The homogenizing plate be located in the liquid chamber and with the outer cylinder body
It is connected, the homogenizing plate supports the stabilier, and the stabilier and the homogenizing plate are porous plate.
In certain embodiments, the homogenizing plate includes spaced apart two, and the week edge connection institute of the homogenizing plate
The inner peripheral surface of outer cylinder body is stated, the stabilier is located between two homogenizing plates.
In certain embodiments, the inner side of the homogenizing plate is provided with neck and the end of the stabilier is stretched into.
In certain embodiments, be provided with porous limiting plate in the outer cylinder body, the diaphragm be located at the limiting plate and
Between the homogenizing plate.
In certain embodiments, the limiting plate is towards the spherical shape being recessed away from the direction of the homogenizing plate.
In certain embodiments, the liquid chamber is cylindrical shape, and the both ends of the liquid chamber be equipped with it is described
Diaphragm.
In certain embodiments, the outer cylinder body is the stainless steel cylinder of lining teflon.
In certain embodiments, the inlet honeycomb duct connects the flaring tubulose of the entrance, the outlet guide in big mouth
Flow tube connects the tapered tubulose of the outlet in big mouth.
In certain embodiments, the diaphragm includes polytetrafluoroethylene (PTFE) clad and rubber inner core, the polytetrafluoroethylene (PTFE)
Clad is coated on outside rubber inner core.
In certain embodiments, the air chamber is connected with air pressure adjustment component, and the air pressure adjustment component includes：Regulating valve
And pressure transmitter.One end of the regulating valve connects the air chamber；The pressure transmitter connects the air chamber, the pressure
Transmitter and the regulation valve signal transmission.
In certain embodiments, the other end of the regulating valve is connected with source of the gas.
In certain embodiments, the air chamber is also associated with safety valve.
Brief description of the drawings
Fig. 1 is the schematic diagram of the prepressing type pulsation damper applied to injecting systems of one embodiment of the invention.
Fig. 2 is the schematic diagram of diaphragm in Fig. 1.
Reference：
Measuring pump 1；Injecting systems inlet connection 2；Inlet honeycomb duct 3；Export mozzle 4；Stabilier 5；Liquid chamber 6；
Outer cylinder body 7；Homogenizing plate 8；Diaphragm 9；Limiting plate 11；Air chamber 12；Injecting systems discharge connection 13；Source of the gas 14；Pressure transmitter 15；
Regulating valve 16；Safety valve 17；Neck 19；Rubber inner core 20；Polytetrafluoroethylene (PTFE) clad 21.
Embodiment
Embodiments of the invention are described below in detail, the example of embodiment is shown in the drawings, wherein identical from beginning to end
Or similar label represents same or similar element or the element with same or like function.Retouched below with reference to accompanying drawing
The embodiment stated is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
Solution is delivered to injection branch road inlet connection 2 by measuring pump 1, because measuring pump is a kind of displacement pump, such as plunger
Pump, membrane pump etc., by the reciprocating motion of internals to convey solution, when the drive mechanism of displacement pump promotes to induction system
When, pump pressure is more than induction system, output flow；When the drive mechanism of displacement pump is retracted, flash pressure reduces in pump, conveying
The pressure of system is more than pump pressure；When the drive mechanism of displacement pump promotes to induction system again, output flow again, therefore
Periodic pulsation occurs in liquid inventory and pressure in induction system, can influence the accurate control and measurement, right of rate-of flow
Induction system impacts, causes phenomena such as pipeline vibration.For this, the invention provides a kind of precompressed applied to injecting systems
Formula pulse buffer.
Below with reference to the accompanying drawings the prepressing type pulse buffer applied to injecting systems of the embodiment of the present invention is described.
As shown in figure 1, the prepressing type pulsation damper applied to injecting systems for example of being had a try according to the present invention, including：Outside
Cylinder 7, current stabilization part, inlet honeycomb duct 3 and outlet mozzle 4.
Specifically, be provided with diaphragm 9 in outer cylinder body 7, the inner surface of diaphragm 9 and outer cylinder body 7 cooperatively form liquid chamber 6 and
Air chamber 12, liquid chamber 6 and air chamber 12 are spaced apart by diaphragm 9, and wherein diaphragm 9 is deformable, have connection fluid chamber on outer cylinder body 7
The entrance and exit of room 6, liquid enter liquid chamber 6 by entrance, then discharge liquid chamber 6 by outlet.Current stabilization part is located at liquid
In fluid chamber 6, current stabilization part separates the entrance and exit of liquid chamber 6, has via on current stabilization part, fluid chamber is entered from entrance
The liquid of room 6 discharges liquid chamber 6 after current stabilization part, from outlet.Inlet honeycomb duct 3 connects the entrance of liquid chamber 6, outlet
Mozzle 4 connects the outlet of liquid chamber 6.
Solution is delivered to injection branch road inlet connection 2 by measuring pump 1, and enters liquid chamber via inlet honeycomb duct 3
6, when being passed through liquid into liquid chamber 6, liquid enters liquid chamber 6 from entrance, the pressure increase in liquid chamber 6, drives
Dynamic diaphragm 9 deforms, while the air pressure increase in air chamber 12；When not being passed through liquid into liquid chamber 6, the pressure in liquid chamber 6
Power diminishes, and the air pressure in air chamber 12 provides pressure to liquid chamber 6, continues to drive liquid to discharge from outlet.
Prepressing type pulsation damper applied to injecting systems according to embodiments of the present invention, can effectively absorb and inject back into
The flow on road and pressure oscillation, flowing is set to be similar to laminar condition, drag losses is smaller, good buffer effect.
The current stabilization part of the present invention can be a dividing plate, for example, setting a porous baffle interval to open inlet and outlet
Between, when now liquid passes through dividing plate, dividing plate will be to liquid current stabilization.Or current stabilization part can also be arranged to：With liquid chamber
Inner surface cooperatively form the chamber connected with entrance, and the outside of current stabilization part forms the chamber with outlet.
In addition, the invention also provides a kind of current stabilization part.
Specifically, as shown in figure 1, in one embodiment of the invention, current stabilization part includes stabilier 5 and homogenizing plate 8.
Stabilier 5 is located in liquid chamber 6, and stabilier 5 separates the entrance and exit of liquid chamber 6, and fluid chamber is entered from entrance
Liquid in room 6 is discharged after stabilier 5 from outlet, and stabilier 5 plays a part of to liquid current stabilization.Homogenizing plate 8 is located at liquid
In fluid chamber 6, and homogenizing plate 8 is connected with outer cylinder body 7, and homogenizing plate 8 supports stabilier 5.
Wherein, stabilier 5 and homogenizing plate 8 are porous plate.
Stabilier 5 and homogenizing plate 8, which coordinate, provides resistance, with effectively eliminate during hydraulic shock caused big ups and downs and
Impact, further prevent impact and solution of the solution to buffer directly into injection branch way outlet.
Such as Fig. 1, homogenizing plate 8 includes spaced apart two, and inner peripheral surface of the week of homogenizing plate 8 along connection outer cylinder body 7, surely
Flowing plate 5 is located between two homogenizing plates 8.
Wherein, referring to the drawings 1, the upper end of stabilier 5 is connected with a homogenizing plate 8, and the lower end of stabilier 5 with it is another
Individual homogenizing plate 8 is connected, and two homogenizing plates are all connected with being relatively fixed with outer cylinder body.
Set two homogenizing plates 8 to position stabilier 5, stabilier 5 can be stably arranged in liquid chamber, improved
The steady flow result of current stabilization part.
In addition, the stable installation of stabilier 5, the inner side of homogenizing plate 8 are provided with the end of neck 19 and stabilier 5 for convenience
Stretch into, stabilier 5 provides support by two homogenizing plates 8 and fixed, and is fixed on by neck 19 between homogenizing plate 8., can by neck
So that stabilier 5 and homogenizing plate 8 stably to be linked together, so as to improve the bonding strength between stabilier 5 and homogenizing plate 8,
Current stabilization part is avoided to be damaged during hydraulic shock.
Wherein, the region between two homogenizing plates 8 is the inner side of homogenizing plate 8, and the opposite side of homogenizing plate 8 is homogenizing plate
Outside.
Further, such as Fig. 1, outer cylinder body 7 is interior to be provided with porous limiting plate 11, and diaphragm 9 is located at limiting plate 11 and homogenizing plate 8
Between.It is common by when acting on of air pressure in the hydraulic pressure in liquid chamber 6 and air chamber 12, limiting plate 11 and homogenizing plate 8 in diaphragm
The displacement that diaphragm 9 pumps is limited, diaphragm 9 is always positioned between limiting plate 11 and homogenizing plate 8, is prevented in some works
Condition down-off and pressure big ups and downs cause the excessive deformation of diaphragm 9 and damage, ensure the security, stability and use of buffer
Life-span.
Advantageously, if Fig. 1, limiting plate 11 are towards the spherical shape being recessed away from the direction of homogenizing plate 8.Diaphragm 9 by
In air chamber during gas pressure, the stress of diaphragm 9 everywhere is than more uniform, and the limiting plate 11 of spherical shape can keep diaphragm 8
The state of uniform force everywhere, so as to protect diaphragm 9.
Such as Fig. 1, in one embodiment of the invention, liquid chamber 6 is cylindrical shape, using the teaching of the invention it is possible to provide big volume space is made
To damp, to block the fluctuation with absorbent solution pressure and flow.
Preferably, the both ends of liquid chamber 6 are equipped with diaphragm 9.Region formation liquid chamber 6 between two diaphragms 9, two
The outside of individual diaphragm 9 limits discharge chamber 12 with outer cylinder body 7.
In order to further improve the structural strength of diaphragm 9, as shown in Fig. 2 the material of diaphragm 9 is coated using polytetrafluoroethylene (PTFE)
High-performance rubber.
Wherein, rubber inner core 20 is using a kind of soft, the height that tensile strength is high, elongation is big, elasticity is good, power consumption is larger
Performance rubber, the Wave energy for absorbent solution.Selected rubber modulus of shearing is more than 0.4MPa, and modulus of elasticity is less than
1960MPa, tensile strength are more than 26MPa.Outer layer is relatively thin polytetrafluoroethylene (PTFE) clad 21, and polytetrafluoroethylene (PTFE) has very strong
Chemical stability, corrosion-resistant, modulus of elasticity 400MPa, bonded after how surface receives chemical treatment with rubber inner core.Diaphragm should
With the larger and tensile strength of high-performance rubber power consumption it is larger the characteristics of to absorb Wave energy, be used as using polytetrafluoroethylene (PTFE) outer
Layer material separation gas and solution, improve the corrosion resistance of diaphragm, it is ensured that solution is not contaminated.
Such as Fig. 1, inlet honeycomb duct 3 is flaring tubulose, can coordinate different-diameter, the basis of injection branch road inlet connection 2
Drag losses minimum principle selects the angle of flare, and solution is reduced by flow velocity after expansion, plays a part of eliminating inertia impact.
Preferably, if Fig. 1, outlet mozzle 4 are tapered tubulose, outlet mozzle 4 plays rectification and recovers solution flow rate
Effect, outlet mozzle 4 connects injecting systems discharge connection 13, injected to circulation major loop.
Specifically, as Fig. 1, inlet honeycomb duct 3 connect the increaser of entrance in big mouth (right-hand member of inlet honeycomb duct 3)
Shape, outlet mozzle 4 are in the tapered tubulose of big mouth (left end of outlet mozzle 4) connection outlet.
Further, outer cylinder body 7 is the stainless steel cylinder of lining teflon.
Such as Fig. 1, in one embodiment of the invention, air chamber 12 is connected with air pressure adjustment component, is filled by gas regulation
Put the air pressure in regulation air chamber 12.Air pressure adjustment component includes：Regulating valve 16 and pressure transmitter 15.One end of regulating valve 16 connects
Connect air chamber 12；Pressure transmitter 15 connects air chamber 12, and signal transmission is carried out between pressure transmitter 15 and regulating valve 16.
Air chamber 12 is the space formed by diaphragm 9 and outer cylinder body 7, internal pre- filling with inert gas.When injecting systems influent
During the flow increase of fluid chamber 6, the stagnation pressure increase of liquid chamber, diaphragm is squeezed the volume of compression air chamber 12, liquid chamber 6
Volume enlargement, absorb flow incrementss；When the flow and stagnation pressure of injecting systems influent chamber 6 reduce, liquid chamber 6
Pressure is less than the pressure of air chamber 12, then air chamber 12 discharges liquid in liquid chamber, compensation by the volume of 9 compressed liquid chamber of diaphragm 6
Injecting systems flow decrement, so as to reach the effect of gentle flow and pressure oscillation.
Further, as Fig. 1, the other end of regulating valve 16 are connected with source of the gas 14.
Preferably, as Fig. 1, air chamber 12 are also associated with safety valve 17.
Specifically, air chamber 12 can realize that preset pressure to goal pressure, adapts to the back of the body under different operating modes by air supply system
Pressure.When injecting systems inject solution to circulation, back pressure is equal to the pressure of circulation.Pressure is set on air chamber 12
Transmitter 15, pressure transmitter 15 are interlocked with regulating valve 16, and source of the gas 14 is supplied by regulating valve 16 to air chamber 12, until pressure becomes
Device 15 is sent to be shown as target preset pressure.Air chamber 12 is also provided with safety valve 17, there is provided overpressure protection.
The buffer of the present invention can be used for derived energy chemical industry field of fluid, more particularly to a kind of to change for back pressure
It is under the conditions of change, have in the injecting systems of displacement pump, for buffering the flow of pipeline and the device of pressure fluctuation.The present apparatus passes through
Compression system is that air chamber pre-sets pressure, to adapt to different back pressures in circulation.The solution of injecting systems passes through water conservancy diversion
Element enters buffer liquid chamber, after the cushioning effect by the change of the rectification of internal structure, air chamber and liquid chamber volume
Injecting systems are returned to, flow and the pressure oscillation of injecting systems is effectively absorbed, flowing is similar to laminar condition.Compared to existing
Measuring pump buffer technology, the technology have be suitable for different back pressures, suitable for the flow injection of wide scope, drag losses compared with
Small, the advantages that flowed fluctuation cushioning effect is abundant and reliable, continuous, stable injection flow is provided for other systems.
Realize that the measure of the object of the invention is：Pass through the cushioning effect of diversion member, liquid chamber and air chamber, stabilier
Acted on the current stabilization of homogenizing plate, effectively absorb flow and the pressure oscillation of injection loop, flowing is similar to laminar condition, resistance
Lose smaller, good buffer effect；The rubber-coated diaphragm of polytetrafluoroethylene (PTFE) can be moved back and forth reliably for a long time；Pass through adjusting prepressing
Air chamber is suitable for different back pressures, reliable.
The advantage of the invention is that：Become using the pre- plenum chamber for being changed according to back pressure and being set, by liquid inventory and pressure
Change and buffer structure, water conservancy diversion and the current-stabilizing structure of adjust automatically volume, so that injecting systems in the process of running, reach holding
Gentle and absorption flow and pressure oscillation, the effect of solution continuous-stable injection；Wide scope stream can be realized by preset pressure
Amount injection, adapts to the change of other systems flow wide scope；Using the diaphragm of polytetrafluoroethylene (PTFE) cladding high-performance rubber, buffering
Gas and solution keep isolate in device running, it is therefore prevented that diaphragm corrodes and solution pollution, diaphragm have the elasticity that is adapted to
Intensity；Diaphragm excessive deformation and damage are prevented using position-limit mechanism, ensure that buffer structure is reliable；Changed according to back pressure and set
The air chamber pressure put, compared to the chamber type pulsation damper of certain fixing model, flow and pressure oscillation to injecting systems it is slow
It is more preferable to rush effect；Buffer uses cylindrical structural, and internals processing is installed and safeguarded relatively simple.
The prepressing type pulse buffer applied to injecting systems of a specific embodiment of the invention is described below.
Pulsation damper is generally cylindrical, and critical piece includes：Outer cylinder body 7, material for lining teflon 304 not
Become rusty steel, has highly corrosion resistant and intensity.Mozzle 3 and 4, as inflow/outgoing interface of solution, different-diameter can be coordinated
Inject branch road adapter.Liquid chamber 6, absorption and release solution, eliminate pressure and the flowed fluctuation of injecting systems, compensation injection system
The volume change of system.Air chamber 12, volume is changed according to the change of the flow of solution and pressure, passes through iris action to fluid chamber
Room, air chamber pressure are predeterminable.Stabilier 5 can provide resistance and eliminate big ups and downs to prevent the damage of buffer and failure.
Flowing plate 8 provides support for stabilier, while eliminates the pressure peak that local violent flowed fluctuation is acted on diaphragm.Source of the gas 14
Precompressed is provided for air chamber, to adapt to the back pressure of circulating water loop difference operating mode.
Solution is delivered to injection branch road inlet connection 2 by measuring pump 1, and buffer is flowed into by entrance guiding structure 3
Liquid chamber 6, inlet honeycomb duct 3 are the increasers of the different angles of flare, can coordinate injection branch road inlet connection different-diameter,
The angle of flare is selected according to drag losses minimum principle, solution is reduced by flow velocity after expansion, plays a part of eliminating inertia impact.
Liquid chamber 6 is cylinder, using the teaching of the invention it is possible to provide big volume space is as damping, with retardance and absorbent solution pressure and stream
The fluctuation of amount.Liquid chamber 6 is separated by diaphragm 9 and air chamber 12.
In liquid chamber 6 set stabilier 5, stabilier is porous plate, there is provided resistance with effectively eliminate big ups and downs and
Impact, further prevent impact and solution of the solution to buffer directly into injection branch way outlet.Stabilier 5 is flowed by two
Plate 8 provides support and fixed, and is fixed on by neck 19 between homogenizing plate 8.
Homogenizing plate 8 is porous plate, and support is provided for stabilier 5, while causes the flow and pressure point on solution to diaphragm 9
Cloth is uniform, reduces the local acutely flowed fluctuation being likely to occur under some operating modes and acts in the pressure collection on diaphragm and diaphragm
The possibility of impact failure, it ensure that the normal reliable operation of diaphragm.
The material of diaphragm 9 uses the high-performance rubber of polytetrafluoroethylene (PTFE) cladding.Rubber inner core 20 is using a kind of soft, stretching
The high-performance rubber that intensity is high, elongation is big, elasticity is good, power consumption is larger, the Wave energy for absorbent solution.Selected rubber is cut
Shear modulu is more than 0.4MPa, and modulus of elasticity is less than 1960MPa, and tensile strength is more than 26MPa.Outer layer is relatively thin polytetrafluoroethylene (PTFE)
Clad 21, polytetrafluoroethylene (PTFE) have very strong chemical stability, corrosion-resistant, modulus of elasticity 400MPa, through surface how receiving
Bonded after processing with rubber inner core.Diaphragm applies the characteristics of high-performance rubber power consumption is larger and tensile strength is larger to absorb
Wave energy, using polytetrafluoroethylene (PTFE) as cladding material separation gas and solution, improve the corrosion resistance of diaphragm, it is ensured that molten
Liquid is not contaminated.
Limiting plate 11 is sphere porous plate, limits the displacement that diaphragm 9 pumps jointly with homogenizing plate 8, prevents
Cause diaphragm excessive deformation and damage in some operating mode down-offs and pressure big ups and downs, ensure that diaphragm service life.
Air chamber 12 is the space formed by diaphragm 9 and outer cylinder body 7, internal pre- filling with inert gas.When injecting systems influent
During the flow increase of fluid chamber 6, the stagnation pressure increase of liquid chamber, diaphragm is squeezed the volume of compression air chamber 12, liquid chamber 6
Volume enlargement, absorb flow incrementss；When the flow and stagnation pressure of injecting systems influent chamber 6 reduce, liquid chamber 6
Pressure is less than the pressure of air chamber 12, then air chamber 12 discharges liquid in liquid chamber, compensation by the volume of 9 compressed liquid chamber of diaphragm 6
Injecting systems flow decrement, so as to reach the effect of gentle flow and pressure oscillation.
Solution is flowed out by exporting mozzle 4, and outlet mozzle plays a part of rectification and recovers solution flow rate.Outlet guide
Flow tube connects the discharge connection 13 of injecting systems, is injected to circulation major loop.
Air chamber 12 can realize that preset pressure to goal pressure, adapts to the back pressure under different operating modes by air supply system.Noting
When penetrating system to circulation injection solution, back pressure is equal to the pressure of circulation.Pressure transmitter is set on air chamber 12
15, pressure transmitter 15 is interlocked with regulating valve 16, and source of the gas 14 is supplied by regulating valve 16 to air chamber 12, until pressure transmitter 15
It is shown as target preset pressure.Air chamber 12 is also provided with safety valve 17, there is provided overpressure protection.
The present apparatus is applicable to have a case that the injecting systems of displacement pump are injected to the circulation of pressure changeable.
In conjunction with specific embodiments, illustrate：
Solution is delivered to injection branch road inlet connection 2 by measuring pump 1, and the liquid of buffer is flowed into by inlet honeycomb duct 3
Fluid chamber 6, inlet honeycomb duct 3 are the increasers of the different angles of flare, and the first step eliminates the effect of solution inertia impact.
Under different operating modes, the angle of flare of inlet honeycomb duct 3 can set it is different, wherein, the expansion of inlet honeycomb duct 3
Subtended angle is in the range of 2 ° to 15 °, for example, the angle of flare of inlet honeycomb duct 3 can be arranged to 2 °, 5 °, 9.5 °, 15 ° etc..
And the angle of flare for exporting mozzle 4 can equally be set according to operating mode, the angle of flare of outlet mozzle 4 can be with entering
The angle of flare of mouth mozzle 3 is identical or different.
Solution flows into cylindrical liquid chamber 6, and into big volume space, the space provides damping to block and absorbent solution
The fluctuation of pressure and flow.
In liquid chamber 6 set stabilier 5, stabilier is porous plate, there is provided resistance with effectively eliminate big ups and downs and
Impact, further prevent impact and solution of the solution to buffer directly into injection branch way outlet.
Homogenizing plate 8 is set in liquid chamber 6, provides support for stabilier 5, while cause the stream on solution to diaphragm 9
Amount and pressure distribution are uniform, reduce the local pressure that acutely flowed fluctuation is acted on diaphragm being likely to occur under some operating modes
Collection neutralizes the possibility that diaphragm is impacted and damaged, and ensure that the normal reliable operation of diaphragm.
The material of diaphragm 9, according to the above content of the invention, may be selected poly- using the high-performance rubber 20 of polytetrafluoroethylene (PTFE) cladding 21
NBR nitrile rubbers after tetrafluoroethene/resin modified reinforcement.Diaphragm applies the larger and larger spy of tensile strength of rubber power consumption
Point, using polytetrafluoroethylene (PTFE) as cladding material separation gas and solution, improves the corrosion-resistant of diaphragm to absorb Wave energy
Property, it is ensured that solution is not contaminated.
The displacement that diaphragm 9 pumps is limited jointly by limiting plate 11 and homogenizing plate 8, prevents under accident conditions
Or specific operation down-off and pressure big ups and downs cause diaphragm excessive deformation and damage, ensure that diaphragm service life.
The space that diaphragm 9 and outer cylinder body 7 are formed forms air chamber 12, internal pre- filling with inert gas.Such as have three every
The injecting systems of film measuring pump, flow curve are the sine curve with three equiphases difference, during crest, injecting systems influent
The flow increase of fluid chamber 6, the stagnation pressure increase of liquid chamber, diaphragm are squeezed the volume of compression air chamber 12, the appearance of liquid chamber 6
Product expands, and absorbs flow incrementss and stagnation pressure incrementss；During trough, the flow and stagnation pressure of injecting systems influent chamber 6 subtract
Hour, the pressure of liquid chamber 6 is less than the pressure of air chamber 12, then air chamber 12 passes through the volume of 9 compressed liquid chamber of diaphragm 6, release liquid
Liquid in fluid chamber, injecting systems flow decrement is compensated, so as to reach the effect of gentle flow and pressure oscillation.
Solution is flowed out by exporting mozzle 4, by exporting mozzle rectification and recovering solution flow rate.Export mozzle
The discharge connection 13 of injecting systems is connected, is injected to circulation major loop.
Air chamber 12 can realize that preset pressure to goal pressure, adapts to the back pressure under different operating modes by air supply system.Noting
When penetrating system to circulation injection solution, back pressure is equal to the pressure of circulation.Pressure transmitter is set on air chamber 12
15, pressure transmitter 15 is interlocked with regulating valve 16, and source of the gas 14 is supplied by regulating valve 16 to air chamber 12, and gas can be nitrogen, side
Easy, nitrogen cylinder is replaceable, for adjusting pressure.Until pressure transmitter 15 is shown as target preset pressure.Air chamber 12 is also
There is provided safety valve 17, overpressure protection is realized.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or
Position relationship, it is for only for ease of and describes the present invention and simplify description, rather than indicates or imply that signified device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the invention, " multiple " are meant that at least two, such as two, three
It is individual etc., unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect；Can be joined directly together, can also be indirectly connected by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements, limited unless otherwise clear and definite.For one of ordinary skill in the art
For, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature
It is that the first and second features directly contact, or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height and is less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area
Art personnel can be tied the different embodiments or example and the feature of different embodiments or example described in this specification
Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification.
Claims (13)
- A kind of 1. prepressing type pulse buffer applied to injecting systems, it is characterised in that including：Outer cylinder body, the outer cylinder body is interior to be provided with deformable diaphragm, and the inner surface of the diaphragm and the outer cylinder body cooperatively forms Spaced liquid chamber and air chamber, there is the entrance and exit for connecting the liquid chamber on the outer cylinder body；Current stabilization part, the current stabilization part are located in the liquid chamber and separate the entrance and exit of the liquid chamber, described steady There is via on stream part；Inlet honeycomb duct, the inlet honeycomb duct connect the entrance of the liquid chamber；Mozzle is exported, the outlet mozzle connects the outlet of the liquid chamber.
- 2. the prepressing type pulse buffer according to claim 1 applied to injecting systems, it is characterised in that the current stabilization Part includes：Stabilier, the stabilier are located in the liquid chamber and separate the entrance and exit of the liquid chamber；Homogenizing plate, the homogenizing plate are located in the liquid chamber and are connected with the outer cylinder body, described in the homogenizing plate support Stabilier,The stabilier and the homogenizing plate are porous plate.
- 3. the prepressing type pulse buffer according to claim 2 applied to injecting systems, it is characterised in that described to flow Plate includes spaced apart two, and the week of the homogenizing plate is located at along the inner peripheral surface for connecting the outer cylinder body, the stabilier Between two homogenizing plates.
- 4. the prepressing type pulse buffer according to claim 3 applied to injecting systems, it is characterised in that described to flow The inner side of plate is provided with neck and the end of the stabilier is stretched into.
- 5. the prepressing type pulse buffer according to claim 2 applied to injecting systems, it is characterised in that the outer barrel Porous limiting plate is provided with vivo, and the diaphragm is located between the limiting plate and the homogenizing plate.
- 6. the prepressing type pulse buffer according to claim 5 applied to injecting systems, it is characterised in that described spacing Plate is towards the spherical shape being recessed away from the direction of the homogenizing plate.
- 7. the prepressing type pulse buffer applied to injecting systems according to any one of claim 1-6, its feature exist In the liquid chamber is cylindrical shape, and the both ends of the liquid chamber are equipped with the diaphragm.
- 8. the prepressing type pulse buffer applied to injecting systems according to any one of claim 1-6, its feature exist In the outer cylinder body is the stainless steel cylinder of lining teflon.
- 9. the prepressing type pulse buffer applied to injecting systems according to any one of claim 1-6, its feature exist In the flaring pipeline section that the entrance is connected in big mouth of the inlet honeycomb duct, the outlet mozzle connects institute in big mouth State the tapered pipeline section of outlet.
- 10. the prepressing type pulse buffer applied to injecting systems according to any one of claim 1-6, its feature It is, the diaphragm includes polytetrafluoroethylene (PTFE) clad and rubber inner core, and the polytetrafluoroethylene (PTFE) clad is coated in rubber Outside core.
- 11. the prepressing type pulse buffer applied to injecting systems according to any one of claim 1-6, its feature exist In the air chamber is connected with air pressure adjustment component, and the air pressure adjustment component includes：Regulating valve, one end of the regulating valve connect the air chamber；Pressure transmitter, the pressure transmitter connect the air chamber, the pressure transmitter and the regulation valve signal transmission.
- 12. the prepressing type pulse buffer according to claim 11 applied to injecting systems, it is characterised in that the tune The other end of section valve is connected with source of the gas.
- 13. the prepressing type pulse buffer according to claim 11 applied to injecting systems, it is characterised in that the gas Room is also associated with safety valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720847547.4U CN207195113U (en) | 2017-07-12 | 2017-07-12 | Prepressing type pulse buffer applied to injecting systems |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720847547.4U CN207195113U (en) | 2017-07-12 | 2017-07-12 | Prepressing type pulse buffer applied to injecting systems |
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| CN207195113U true CN207195113U (en) | 2018-04-06 |
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| CN201720847547.4U Active CN207195113U (en) | 2017-07-12 | 2017-07-12 | Prepressing type pulse buffer applied to injecting systems |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108644087A (en) * | 2018-06-25 | 2018-10-12 | 杭州新亚低温科技有限公司 | Device is stabilized in super-low liquid pulse |
| CN108915975A (en) * | 2018-08-09 | 2018-11-30 | 山东禹王生态食业有限公司 | Food high-pressure pump surging abatement device |
| CN109253064A (en) * | 2017-07-12 | 2019-01-22 | 国家电投集团科学技术研究院有限公司 | Prepressing type pulse buffer applied to injecting systems |
| CN110107428A (en) * | 2019-05-28 | 2019-08-09 | 西安航天动力研究所 | A kind of high Emptying Rate high-pressure motive case |
| CN113522171A (en) * | 2021-07-21 | 2021-10-22 | 高砂电气(苏州)有限公司 | Quantitative discharging device |
| US20220031968A1 (en) * | 2018-09-21 | 2022-02-03 | National Cancer Center | Gas injection stabilization device |
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2017
- 2017-07-12 CN CN201720847547.4U patent/CN207195113U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109253064A (en) * | 2017-07-12 | 2019-01-22 | 国家电投集团科学技术研究院有限公司 | Prepressing type pulse buffer applied to injecting systems |
| CN109253064B (en) * | 2017-07-12 | 2024-03-29 | 国家电投集团科学技术研究院有限公司 | Pre-compression type pulse buffer applied to injection system |
| CN108644087A (en) * | 2018-06-25 | 2018-10-12 | 杭州新亚低温科技有限公司 | Device is stabilized in super-low liquid pulse |
| CN108915975A (en) * | 2018-08-09 | 2018-11-30 | 山东禹王生态食业有限公司 | Food high-pressure pump surging abatement device |
| CN108915975B (en) * | 2018-08-09 | 2020-07-17 | 山东禹王生态食业有限公司 | Pulsation reducing device for food high-pressure pump |
| US20220031968A1 (en) * | 2018-09-21 | 2022-02-03 | National Cancer Center | Gas injection stabilization device |
| CN110107428A (en) * | 2019-05-28 | 2019-08-09 | 西安航天动力研究所 | A kind of high Emptying Rate high-pressure motive case |
| CN113522171A (en) * | 2021-07-21 | 2021-10-22 | 高砂电气(苏州)有限公司 | Quantitative discharging device |
| CN113522171B (en) * | 2021-07-21 | 2024-03-19 | 高砂电气(苏州)有限公司 | Quantitative discharge device |
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