CN104229939B - A kind of fluid pressure energy retracting device based on piston type liquid switch - Google Patents
A kind of fluid pressure energy retracting device based on piston type liquid switch Download PDFInfo
- Publication number
- CN104229939B CN104229939B CN201410484640.4A CN201410484640A CN104229939B CN 104229939 B CN104229939 B CN 104229939B CN 201410484640 A CN201410484640 A CN 201410484640A CN 104229939 B CN104229939 B CN 104229939B
- Authority
- CN
- China
- Prior art keywords
- connecting hole
- arc groove
- liquid pipe
- solid cylinder
- highly pressurised
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Actuator (AREA)
Abstract
Based on a fluid pressure energy retracting device for piston type liquid switch, belong to pressure energy recovery technology field.Retracting device comprises liquid switch A, liquid switch B and the pipeline being connected 2 liquid switch.Liquid switch is made up of cylinder body and special-shaped piston; Cylinder body major part is cylindrical cavity, is provided with six connecting holes, special-shaped piston has four arc grooves.Structure of the present invention is simple, easily processes, easily seals, and do not need complicated pressure-exchange equipment, the pressure loss is low, and blending amount is low.
Description
Technical field
Apparatus of the present invention are that a kind of piston movement by short stroke completes high-low pressure liquid handoff procedure and then realizes reclaiming the energy recycle device of highly pressurised liquid residual compression energy, belong to pressure energy recovery technology field.This device can be used for the fields such as reverse osmosis seawater desalting, oil, chemical industry, the pressure energy of the highly pressurised liquids such as high efficiente callback strong brine, cuprammonia, liquefied ammonia, reaches energy-saving effect by reducing power consumption.
Background technology
In the technological process of productions such as numerous petrochemical industry, desalinization, there are many operations all to relate to highly pressurised liquid, by pressure-reducing valve, pressure are reduced to required low pressure, or need the liquid of discharge still to have very high pressure, these decompression and discharge process in cause a large amount of energy loss, these loss energy can be recycled by pressure energy retracting device.
Pressure energy retracting device can be divided into centrifugal and positive displacement by operation principle.Wherein the centrifugal highly pressurised liquid that utilizes promotes hydraulic turbine rotation, drives pump to rotate low pressure liquid pressurization, realizes the power conversion of " pressure energy-mechanical energy-pressure energy ", reduce the power consumption of high-pressure pump, cost-saving; Positive displacement then utilizes the Incoercibility of liquid, directly realizes the energy transferring of " pressure energy-pressure energy " between highly pressurised liquid and low pressure liquid, middle noenergy conversion loss.As the turbocharging energy recycle device of the up-to-date representative products of centrifugal pressure energy retracting device, comprise senior turbine (Advanced Turbo, and low-pressure turbine (Low PressureTurbo AT), LPT), although obtain certain breakthrough in all many-sides, but due to the energy loss that the reason of its operation principle all cannot avoid " pressure energy-mechanical energy-pressure energy " to cause, this fundamentally limits the raising (between 50% ~ 80%) of such device energy recovery efficiency, therefore current countries in the world extensive use be by liquid between directly carry out the positive displacement pressure energy retracting device of pressure energy transmission.Such device is not owing to needing assist, and decrease the intermediate link of Conversion of Energy, energy recovery efficiency improves greatly, generally between 91 ~ 96% (partial devices is close to 100%).
Positive displacement pressure energy retracting device representative products has rotator type and Work-exchange type.The pressure energy that rotator type device utilizes the rotor of High Rotation Speed to realize high-low pressure liquid exchanges.Abroad the research of such device is reached its maturity, from the pottery adopting the material such as stainless steel, alloy to adopt up till now, after overcoming all difficulties, rotator type device (representative products Pressure Exchanger is called for short PX) has been proposed PXQ series of products, and technical indicator improves constantly.Although such device development is comparatively ripe, the problems such as the blending that when noise brought due to rotor high-speed running (usually at more than 1500rpm), sealing, process low discharge, the low and strong turbulent flow of efficiency causes still need to solve.In addition, although domestic scholars has carried out relevant exploratory development to such device, be still in the junior stage, therefore also needed a very long time to the research of such device.Work-exchange type pressure energy retracting device then utilizes the opening and closing of related valve to realize different liquids turnover pressure-exchange cylinder body, and then realizes pressure-exchange function.Its representative products is that (last word is Dual Work ExchangeEnergy Recovery (DWEER) and SalTec DT
with
pressure Center) and be applicable to the Pressure Exchanger System (PES) of hyperbaric environment, large process flow, such device initial cost is high, wearing and tearing, to reveal and device safeguards the problems such as inconvenience; In addition, equipment is compact not, need stop valve and the flow direction of servo valve to highly pressurised liquid and low pressure liquid accurately to control, and requires harsh to valve.Except this two classes device, also have some other forms of pressure energy retracting devices, as ROKinetic, iSave series, these devices require higher to the handoff functionality of different liquids, and correlation technique is by holding in close confidence of going abroad.
Summary of the invention
The present invention proposes a kind of new liquid pressure energy retracting device based on piston type liquid switch, is intended to the blockade of breaks through foreign to such device cutting edge technology, overcomes traditional positive displacement device harsh to valve requirement, the shortcomings such as service life is short.This application of installation reclaimed in reverse osmosis seawater desalination system the residual compression of high-pressure thick salt solution thus reduce system energy consumption.
New liquid pressure energy retracting device based on piston type liquid switch of the present invention comprises liquid switch A, liquid switch B and the pipeline being connected 2 liquid switch.
Aforesaid liquid switch A is identical with liquid switch B structure, see Fig. 1-5, by cylinder body and special-shaped piston composition, described cylinder body major part is cylindrical cavity (1), the cavity of cylindrical cavity (1) has highly pressurised liquid pipe first connecting hole (2), highly pressurised liquid pipe second connecting hole (3), low pressure liquid pipe first connecting hole (4) and low pressure liquid pipe second connecting hole (5), the central axis of highly pressurised liquid pipe first connecting hole (2) and low pressure liquid pipe first connecting hole (4) is same straight line, the central axis of highly pressurised liquid pipe second connecting hole (3) and low pressure liquid pipe second connecting hole (5) is same straight line, the central axis of highly pressurised liquid pipe first connecting hole (2) and the central axis of highly pressurised liquid pipe second connecting hole (3) are parallel to each other, and with the central axis of cylindrical cavity (1) at grade, the cavity of cylindrical cavity (1) also has connecting line first connecting hole (6) and connecting line second connecting hole (7), the central axis upright of connecting line first connecting hole (6) intersects the central axis of highly pressurised liquid pipe first connecting hole (2), the central axis of cylindrical cavity (1) that simultaneously also intersects vertically, the central axis upright of connecting line second connecting hole (7) intersects the central axis of highly pressurised liquid pipe second connecting hole (3), also intersect vertically the central axis of cylindrical cavity (1) simultaneously, and the homonymy of plane that connecting line first connecting hole (6) and connecting line second connecting hole (7) form at the central axis of highly pressurised liquid pipe first connecting hole (2) and the central axis of highly pressurised liquid pipe second connecting hole (3), and above six connecting hole equal diameters.
Cylindrical cavity (1) has driving shaft installing hole (8) at the center near connecting line first connecting hole (6) side end face, and opposite side end face is closed.
Described special-shaped piston major part is solid cylinder piston (9), solid cylinder piston (9) is positioned at cylindrical cavity (1) and can carries out axially reciprocating, solid cylinder piston (9) diameter is identical with the internal diameter of cylindrical cavity (1), the axial length of solid cylinder piston (9) is less than the axial length of cylindrical cavity (1), both difference is the stroke that special-shaped piston carries out moving in cylinder body, and the movement travel of special-shaped piston is greater than above-mentioned six connecting hole diameters, driving shaft (10) is fixedly connected with solid cylinder piston (9), is connected with extraneous drive unit by driving shaft installing hole (8), provides power for special-shaped piston moves reciprocatingly in cylinder body, the circumferential surface of solid cylinder piston (9) has the first arc groove (11), the second arc groove (12), the 3rd arc groove (13), the 4th arc groove (14), the cross section of above-mentioned each arc groove is rectangle, and wherein said cross section is the cross section through solid cylinder piston (9) central axis, each arc groove is partial circle in the cross section perpendicular to solid cylinder piston (9) central axial direction, and the center of circle of this partial circle is on cylinder piston (9) central axis, four arc grooves are measure-alike, arc groove in the length of circumferencial direction all slightly larger than 1/4 of solid cylinder piston (9) girth, namely the central angle that above-mentioned partial circle is corresponding is a bit larger tham 90 °, when solid cylinder piston (9) and cylindrical cavity (1) coupling, first arc groove (11), second arc groove (12), 3rd arc groove (13), 4th arc groove (14) is equal along the width that solid cylinder piston (9) is axial, and equal highly pressurised liquid pipe first connecting hole (2), highly pressurised liquid pipe second connecting hole (3), low pressure liquid pipe first connecting hole (4), low pressure liquid pipe second connecting hole (5), the diameter of connecting line first connecting hole (6) and connecting line second connecting hole (7).Preferably above-mentioned four arc groove degree of depth are determined by making the hole area of section of connecting hole equal arc groove square-section area equation, thus make the flow velocity of liquid respectively in four arc grooves be equal to flow velocity at six connecting holes.
First arc groove (11), the second arc groove (12), the 3rd arc groove (13), the 4th arc groove (14) are positioned at solid cylinder piston (9) same half side-view, 3rd arc groove (13) is positioned at the one end close to being connected with driving shaft (10), first arc groove (11) is then close to the other end, and the first arc groove (11) and the 3rd projection of arc groove (13) on solid cylinder piston (9) end face are overlapping, second arc groove (12) and the 4th arc groove (14) are positioned between the first arc groove (11) and the 3rd arc groove (13), contiguous 3rd arc groove (13) of second arc groove (12), contiguous first arc groove (11) of 4th arc groove (14), second arc groove (12) and the 4th projection of arc groove (14) on solid cylinder piston (9) end face are overlapping, first arc groove (11), second arc groove (12), 3rd arc groove (13), the projection composition of 4th arc groove (14) on solid cylinder piston (9) end face is a bit larger tham the projection annulus of solid cylinder piston (9) girth 1/2, first arc groove (11), second arc groove (12), 3rd arc groove (13), 4th arc groove (14) all has projection at described projection annulus mid point.Connecting line first connecting hole (6) and connecting line second connecting hole (7) centre distance, 3rd arc groove (13) and the 4th arc groove (14) along solid cylinder piston (9) axially between distance be equal to the first arc groove (11) with the second arc groove (12) along the distance between solid cylinder piston (9) axis, second arc groove (12) and the 3rd arc groove (13) along solid cylinder piston (9) axially between distance and the first arc groove (11) and the 4th arc groove (14) to be equal to the movement travel of special-shaped piston along the distance between solid cylinder piston (9) axis, by reference to the accompanying drawings, solid cylinder piston (9) is provided with the end face of driving shaft (10) side and the inner end contact position close to highly pressurised liquid pipe first connecting hole (2) of cylindrical cavity (1) initial position as special-shaped piston, using the opposite side end face of solid cylinder piston (9) and cylindrical cavity (1) the inner opposite side end contact position final position as special-shaped piston, when special-shaped piston is in initial position, first arc groove (11) is communicated with connecting line second connecting hole (7) respectively with highly pressurised liquid pipe second connecting hole (3), and the second arc groove (12) is communicated with connecting line first connecting hole (6) respectively with low pressure liquid pipe first connecting hole (4), when special-shaped piston is in final position, 4th arc groove (14) is communicated with tube connector group second connecting hole (7) respectively with low pressure liquid pipe second connecting hole (5), and the 3rd arc groove (13) is communicated with tube connector group first connecting hole (6) respectively with highly pressurised liquid pipe first connecting hole (2).
Highly pressurised liquid pipe first connecting hole (2) and highly pressurised liquid pipe second connecting hole (3) of liquid switch A adopt wherein two pipes of three-way pipe to be communicated with, and low pressure liquid pipe first connecting hole (4) and low pressure liquid pipe second connecting hole (5) adopt wherein two pipes of three-way pipe to be communicated with; Highly pressurised liquid pipe first connecting hole (2 ') and the highly pressurised liquid pipe second connecting hole (3 ') of liquid switch B adopt wherein two pipes of three-way pipe to be communicated with, and low pressure liquid pipe first connecting hole (4 ') and low pressure liquid pipe second connecting hole (5 ') adopt wherein two pipes of three-way pipe to be communicated with.
Connecting line first connecting hole (6) of liquid switch A is connected by connecting line one (15) with the connecting line first connecting hole (6 ') of liquid switch B, and connecting line second connecting hole (7) of liquid switch A is connected by connecting line two (16) with second connecting hole (7 ') of liquid switch B.Convenient in order to describe, be called initial position when being communicated with connecting line second connecting hole by the first arc groove by highly pressurised liquid pipe second connecting hole of special-shaped piston; When being communicated with low pressure liquid pipe second connecting hole by the 4th arc groove by connecting line second connecting hole, be called final position.When liquid switch A is connected with liquid switch B and works, when in liquid switch A, special-shaped piston is in initial position, in liquid switch B, special-shaped piston is in final position; When liquid switch A is connected work with liquid switch B, when in liquid switch A, special-shaped piston is in initial position, in liquid switch B, special-shaped piston is in final position; When in liquid switch A, special-shaped piston is in final position, in liquid switch B, special-shaped piston is in initial position, i.e. both differences stroke.
The interface of two three-way pipes of liquid switch A is a high pressure Ethylene recov connecting pressure energy to be recycled respectively, and another is then the low hydraulic fluid needing pressurization; The low hydraulic fluid that what three-way pipe interface in liquid switch B two three-way pipes flowed out is after the high pressure Ethylene recov pressure release of pressure energy to be recycled, the highly pressurised liquid of the formation that what another three-way pipe interface flowed out is after the pressurization of low hydraulic fluid.
Regulates liquid switch switches the frequency of initial position and final position, makes not through the liquid not trickle switch B of pressure-exchange.
Further preferred liquid switch A is identical with the size of liquid switch B.
The present invention has following important technical advantage:
1. structure is simple, easily processes, easily seals, and does not need complicated pressure-exchange equipment.
2. integrated level is high, be instead of the effect of 8 valves in conventional pressure energy retracting device by 2 liquid switch.
3. the power that needed for liquid switch, extraneous drive unit provides is few, and plant energy consumption is low.
4. the liquid pressure loss is in a device low.
5. the blending amount between different liquids is low.
6. easy to operate, be convenient to safeguard.
Accompanying drawing explanation
Fig. 1 is the front view of cylinder body;
Fig. 2 is the side view of Fig. 1 cylinder body;
Fig. 3 is the stereogram of special-shaped piston;
Fig. 4 is the top view of Fig. 3 special-shaped piston;
Fig. 5 is the structural representation that one of them cylinder body and special-shaped piston are corresponding;
Fig. 6 is the fluid pressure energy retracting device fundamental diagram (in liquid switch A, special-shaped piston is in initial position) based on liquid switch;
Fig. 7 is the fluid pressure energy retracting device fundamental diagram (in liquid switch A, special-shaped piston is in final position) based on wheel rotary valve;
In figure: 1, cylindrical cavity; 2, highly pressurised liquid pipe first connecting hole; 3, highly pressurised liquid pipe second connecting hole; 4, low pressure liquid pipe first connecting hole; 5, low pressure liquid pipe second connecting hole; 6, connecting line first connecting hole; 7, connecting line second connecting hole; 8, driving shaft installing hole; 9, solid cylinder piston; 10, driving shaft; 11, the first arc groove; 12, the second arc groove; 13, the 3rd arc groove; 14, the 4th arc groove; 15, connecting line one; 16, connecting line two; 17, high-pressure thick salt solution; 18, high pressure sea water; 19, low pressure seawater; 20, low-press thick salt solution; 2 ', liquid switch B highly pressurised liquid pipe first connecting hole; 3 ', liquid switch B highly pressurised liquid pipe second connecting hole; 4 ', liquid switch B low pressure liquid pipe first connecting hole; 5 ', liquid switch B low pressure liquid pipe second connecting hole; 6 ', liquid switch B connecting line first connecting hole; 7 ', liquid switch B connecting line second connecting hole; 11 ', liquid switch B first arc groove; 12 ', liquid switch B second arc groove; 13 ', liquid switch B the 3rd arc groove; 14 ', liquid switch B the 4th arc groove.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention will be further described, but the present invention is not limited to following examples.
Fig. 1 is the front view of cylinder body, and Fig. 2 is the side view of cylinder body, and the cylindrical cavity of cylinder body has seven holes, comprises a driving shaft installing hole, two highly pressurised liquid pipe connecting holes, two low pressure liquid pipe connecting holes and two tube connector group connecting holes.Wherein driving shaft mounting hole site is in the home position of an end face, and other holes are all distributed on the periphery of cylindrical cavity 1.The line of centres and the cylindrical cavity central axis of the line of centres of the line of centres of highly pressurised liquid pipe first connecting hole 2 and highly pressurised liquid pipe second connecting hole 3, low pressure liquid pipe first connecting hole 4 and low pressure liquid pipe second connecting hole 5, tube connector group first connecting hole 6 and tube connector group second connecting hole 7 are parallel to each other.The axis of the axis of tube connector group first connecting hole 6 and the axis of highly pressurised liquid pipe first connecting hole 2, low pressure liquid pipe first connecting hole 4 is in same plane, and angle differs 90 °, and this plane orthogonal is in cylindrical cavity central axis.The axis of the axis of tube connector group second connecting hole 7 and the axis of highly pressurised liquid pipe second connecting hole 3, low pressure liquid pipe second connecting hole 5 is in same plane, and angle differs 90 °, and this plane orthogonal is in cylindrical cavity central axis.
Fig. 3 is the stereogram of special-shaped piston, and Fig. 4 is the top view of special-shaped piston, four arc grooves that major part is solid cylinder piston 9 and digs at this piston periphery.Described arc groove will cover highly pressurised liquid pipe connecting hole and corresponding tube connector group connecting hole at circumferencial direction, and the tube connector group connecting hole of low pressure liquid pipe connecting hole and correspondence; Described arc groove is equal along the width of solid cylinder piston 9 axis, and equals the bore dia of highly pressurised liquid pipe first connecting hole 2, highly pressurised liquid pipe second connecting hole 3, low pressure liquid pipe first connecting hole 4, low pressure liquid pipe second connecting hole 5, connecting line first connecting hole 6 and connecting line second connecting hole 7.The effect of described arc groove is the tube connector group connecting hole being communicated with highly pressurised liquid pipe connecting hole and corresponding tube connector group connecting hole and low pressure liquid pipe connecting hole and correspondence, completes the handoff functionality to different liquids by the reciprocating motion of special-shaped piston in cylinder body.
Fig. 5 is the structural representation of liquid switch, cylinder body and special-shaped piston is assembled together.Low pressure liquid pipe first connecting hole 4 and corresponding second arc groove 12 two ends of connecting line first connecting hole 6, low pressure liquid pipe first connecting hole 4 is communicated with by the second arc groove 12 with connecting line first connecting hole 6, highly pressurised liquid pipe second connecting hole 3 and corresponding first arc groove 11 two ends of connecting line second connecting hole 7, make highly pressurised liquid pipe second connecting hole 3 be communicated with by the first arc groove 11 with connecting line second connecting hole 7 simultaneously; If in like manner highly pressurised liquid pipe first connecting hole 2 and corresponding 3rd arc groove 13 two ends of connecting line first connecting hole 6, highly pressurised liquid pipe first connecting hole 2 is communicated with by the 3rd arc groove 13 with connecting line first connecting hole 6, low pressure liquid pipe second connecting hole 5 and corresponding 4th arc groove 14 two ends of connecting line second connecting hole 7, make low pressure liquid pipe second connecting hole 5 be communicated with by the 4th arc groove 14 with connecting line second connecting hole 7 simultaneously.
Reverse osmosis seawater desalination system is applied to so that the course of work of the described fluid pressure energy retracting device based on piston type liquid switch to be described below for the present invention.Fig. 6 is fundamental diagram when special-shaped piston A is in initial position in liquid switch in apparatus of the present invention, now high-pressure thick salt solution 17 can only enter liquid switch A from highly pressurised liquid pipe second connecting hole 3 by three-way pipe, connecting line second connecting hole 7 is entered by the first arc groove 11, then tube connector group second connecting hole 7 ' in liquid switch B is entered by connecting line 2 16, by liquid switch B the 4th arc groove 14 ' from liquid switch B low pressure liquid pipe second connecting hole 5 ' trickle switch B.Simultaneously, low pressure seawater 19 can only enter liquid switch A from low pressure liquid pipe first connecting hole 4 by three-way pipe, connecting line first connecting hole 6 is entered by the second arc groove 12, then liquid switch B connecting line first connecting hole 6 ' is entered by connecting line 1, by liquid switch B the 3rd arc groove 13 ' from liquid switch B highly pressurised liquid pipe first connecting hole 2 ' trickle switch B.
Extraneous drive unit is started under above-mentioned duty, the special-shaped piston of two liquid switch is driven to complete rapidly the piston movement of a stroke respectively, now in liquid switch A, special-shaped piston is in final position, in liquid switch B, special-shaped piston is in initial position, and operation principle now as shown in Figure 7.At this moment high-pressure thick salt solution 17 can only enter liquid switch A from highly pressurised liquid pipe first connecting hole 2 by three-way pipe, connecting line 1 is entered by the 3rd arc groove 13 and connecting line first connecting hole 6, due to after a upper course of work connecting line 1 runner in be full of low pressure seawater 19, utilize the Incoercibility principle of liquid, the high-pressure thick salt solution 17 entering connecting line 1 compresses the low pressure seawater 19 that a course of work stays makes its supercharging, thus achieve pressure energy from high-pressure thick salt solution 17 to the transmission of low pressure seawater 19, low pressure seawater 19 after supercharging becomes high pressure sea water 18, liquid switch B second arc groove 12 ' is entered from liquid switch B low pressure liquid pipe first connecting hole 4 ' trickle switch B by liquid switch B connecting line first connecting hole 6 '.Simultaneously, low pressure seawater 19 can only enter liquid switch A from low pressure liquid pipe second connecting hole 5 by three-way pipe, connecting line 2 16 is entered by the 4th arc groove 14 and connecting line second connecting hole 7, due to after a upper course of work connecting line 2 16 runner in be full of low-press thick salt solution 20, pressure energy is passed to low pressure seawater 19 by a upper course of work mesohigh strong brine 17 and is transformed by low-press thick salt solution 20, utilize the Incoercibility principle of liquid, the low pressure seawater 19 entering connecting line 2 16 compresses the low-press thick salt solution 20 that a course of work stays makes it constantly leave liquid switch B, thus achieve the process of low pressure seawater 19 displacement low-press thick salt solution 20, liquid switch B first arc groove 11 ' is entered from liquid switch B highly pressurised liquid pipe second connecting hole 3 ' trickle switch B by liquid switch B connecting line second connecting hole 7 ' by the low-press thick salt solution 20 of displacement.After completing the above-mentioned course of work, special-shaped piston in liquid switch A and liquid switch B completes rapidly the piston movement of a stroke separately under the effect of drive unit, get back to the duty of Fig. 6, complete the next course of work, two liquid switch cooperatively interact, cycle alternation completes above-mentioned two courses of work, thus realization reclaims the pressure energy of high-pressure thick salt solution with the energy recovery function of supercharging low pressure seawater.The initial position of rearrange liquids switch A and B and final position simultaneously in time when the liquid of above-mentioned each stroke has just filled the connected volume in completely corresponding liquid switch A in liquid line connecting hole to liquid switch B between liquid line connecting hole.
Claims (3)
1., for the recoverable liquid switch of fluid pressure, it is characterized in that, be made up of cylinder body and special-shaped piston, described cylinder body major part is cylindrical cavity (1), the cavity of cylindrical cavity (1) has highly pressurised liquid pipe first connecting hole (2), highly pressurised liquid pipe second connecting hole (3), low pressure liquid pipe first connecting hole (4) and low pressure liquid pipe second connecting hole (5), the central axis of highly pressurised liquid pipe first connecting hole (2) and low pressure liquid pipe first connecting hole (4) is same straight line, the central axis of highly pressurised liquid pipe second connecting hole (3) and low pressure liquid pipe second connecting hole (5) is same straight line, the central axis of highly pressurised liquid pipe first connecting hole (2) and the central axis of highly pressurised liquid pipe second connecting hole (3) are parallel to each other, and with the central axis of cylindrical cavity (1) at grade, the cavity of cylindrical cavity (1) also has connecting line first connecting hole (6) and connecting line second connecting hole (7), the central axis upright of connecting line first connecting hole (6) intersects the central axis of highly pressurised liquid pipe first connecting hole (2), the central axis of cylindrical cavity (1) that simultaneously also intersects vertically, the central axis upright of connecting line second connecting hole (7) intersects the central axis of highly pressurised liquid pipe second connecting hole (3), also intersect vertically the central axis of cylindrical cavity (1) simultaneously, and the homonymy of plane that connecting line first connecting hole (6) and connecting line second connecting hole (7) form at the central axis of highly pressurised liquid pipe first connecting hole (2) and the central axis of highly pressurised liquid pipe second connecting hole (3), and above six connecting hole equal diameters,
Cylindrical cavity (1) has driving shaft installing hole (8) at the center near connecting line first connecting hole (6) side end face, and opposite side end face is closed;
Described special-shaped piston major part is solid cylinder piston (9), solid cylinder piston (9) is positioned at cylindrical cavity (1) and can carries out axially reciprocating, solid cylinder piston (9) diameter is identical with the internal diameter of cylindrical cavity (1), the axial length of solid cylinder piston (9) is less than the axial length of cylindrical cavity (1), both difference is the stroke that special-shaped piston carries out moving in cylinder body, and the movement travel of special-shaped piston is greater than above-mentioned six connecting hole diameters, driving shaft (10) is fixedly connected with solid cylinder piston (9), is connected with extraneous drive unit by driving shaft installing hole (8), provides power for special-shaped piston moves reciprocatingly in cylinder body, the circumferential surface of solid cylinder piston (9) has the first arc groove (11), the second arc groove (12), the 3rd arc groove (13), the 4th arc groove (14), the cross section of above-mentioned each arc groove is rectangle, and wherein said cross section is the cross section through solid cylinder piston (9) central axis, each arc groove is partial circle in the cross section perpendicular to solid cylinder piston (9) central axial direction, and the center of circle of this partial circle is on solid cylinder piston (9) central axis, four arc grooves are measure-alike, arc groove is all greater than 1/4 of solid cylinder piston (9) girth in the length of circumferencial direction, namely the central angle that above-mentioned partial circle is corresponding is greater than 90 °, when solid cylinder piston (9) and cylindrical cavity (1) coupling, first arc groove (11), second arc groove (12), 3rd arc groove (13), 4th arc groove (14) is equal along the width that solid cylinder piston (9) is axial, and equal highly pressurised liquid pipe first connecting hole (2), highly pressurised liquid pipe second connecting hole (3), low pressure liquid pipe first connecting hole (4), low pressure liquid pipe second connecting hole (5), the diameter of connecting line first connecting hole (6) and connecting line second connecting hole (7),
First arc groove (11), the second arc groove (12), the 3rd arc groove (13), the 4th arc groove (14) are positioned at solid cylinder piston (9) same half side-view, 3rd arc groove (13) is positioned at the one end close to being connected with driving shaft (10), first arc groove (11) is then close to the other end, and the first arc groove (11) and the 3rd projection of arc groove (13) on solid cylinder piston (9) end face are overlapping, second arc groove (12) and the 4th arc groove (14) are positioned between the first arc groove (11) and the 3rd arc groove (13), contiguous 3rd arc groove (13) of second arc groove (12), contiguous first arc groove (11) of 4th arc groove (14), second arc groove (12) and the 4th projection of arc groove (14) on solid cylinder piston (9) end face are overlapping, first arc groove (11), second arc groove (12), 3rd arc groove (13), the projection composition of 4th arc groove (14) on solid cylinder piston (9) end face is greater than the projection annulus of solid cylinder piston (9) girth 1/2, first arc groove (11), second arc groove (12), 3rd arc groove (13), 4th arc groove (14) all has projection at described projection annulus mid point, connecting line first connecting hole (6) and connecting line second connecting hole (7) centre distance, 3rd arc groove (13) and the 4th arc groove (14) along solid cylinder piston (9) axially between distance be equal to the first arc groove (11) with the second arc groove (12) along the distance between solid cylinder piston (9) axis, second arc groove (12) and the 3rd arc groove (13) along solid cylinder piston (9) axially between distance and the first arc groove (11) and the 4th arc groove (14) to be equal to the movement travel of special-shaped piston along the distance between solid cylinder piston (9) axis, solid cylinder piston (9) is provided with the end face of driving shaft (10) side and the inner end contact position close to highly pressurised liquid pipe first connecting hole (2) of cylindrical cavity (1) initial position as special-shaped piston, using the opposite side end face of solid cylinder piston (9) and cylindrical cavity (1) the inner opposite side end contact position final position as special-shaped piston, when special-shaped piston is in initial position, first arc groove (11) is communicated with connecting line second connecting hole (7) respectively with highly pressurised liquid pipe second connecting hole (3), and the second arc groove (12) is communicated with connecting line first connecting hole (6) respectively with low pressure liquid pipe first connecting hole (4), when special-shaped piston is in final position, 4th arc groove (14) is communicated with connecting line second connecting hole (7) respectively with low pressure liquid pipe second connecting hole (5), and the 3rd arc groove (13) is communicated with connecting line first connecting hole (6) respectively with highly pressurised liquid pipe first connecting hole (2).
2. according to the liquid switch of claim 1, it is characterized in that, four arc groove degree of depth are determined by making the hole area of section of connecting hole equal arc groove square-section area equation.
3. the fluid pressure energy retracting device utilizing the liquid switch of claim 1 or 2 to form, is characterized in that, comprises liquid switch A, liquid switch B and the pipeline being connected 2 liquid switch; Highly pressurised liquid pipe first connecting hole (2) and highly pressurised liquid pipe second connecting hole (3) of liquid switch A adopt wherein two pipes of three-way pipe to be communicated with, and low pressure liquid pipe first connecting hole (4) and low pressure liquid pipe second connecting hole (5) adopt wherein two pipes of three-way pipe to be communicated with; Highly pressurised liquid pipe first connecting hole (2 ') and the highly pressurised liquid pipe second connecting hole (3 ') of liquid switch B adopt wherein two pipes of three-way pipe to be communicated with, and low pressure liquid pipe first connecting hole (4 ') and low pressure liquid pipe second connecting hole (5 ') adopt wherein two pipes of three-way pipe to be communicated with;
Connecting line first connecting hole (6) of liquid switch A is connected by connecting line one (15) with the connecting line first connecting hole (6 ') of liquid switch B, and connecting line second connecting hole (7) of liquid switch A is connected by connecting line two (16) with the connecting line second connecting hole (7 ') of liquid switch B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410484640.4A CN104229939B (en) | 2014-09-19 | 2014-09-19 | A kind of fluid pressure energy retracting device based on piston type liquid switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410484640.4A CN104229939B (en) | 2014-09-19 | 2014-09-19 | A kind of fluid pressure energy retracting device based on piston type liquid switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104229939A CN104229939A (en) | 2014-12-24 |
| CN104229939B true CN104229939B (en) | 2015-10-28 |
Family
ID=52218961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410484640.4A Active CN104229939B (en) | 2014-09-19 | 2014-09-19 | A kind of fluid pressure energy retracting device based on piston type liquid switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104229939B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102949934A (en) * | 2012-11-14 | 2013-03-06 | 中冶海水淡化投资有限公司 | Reverse osmosis seawater desalination energy recovery device and switcher thereof |
| CN103191642A (en) * | 2013-03-26 | 2013-07-10 | 国家***天津海水淡化与综合利用研究所 | Pressure exchange cylinder and valve-control pressure exchanger for reverse osmosis desalting system |
| CN103230745A (en) * | 2013-05-07 | 2013-08-07 | 杭州（火炬）西斗门膜工业有限公司 | Differential pressure booster-type energy recovery device based on reverse osmosis system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003144856A (en) * | 2001-11-12 | 2003-05-20 | Sasakura Engineering Co Ltd | Energy recovery apparatus for reverse osmotic membrane apparatus |
| US20080230477A1 (en) * | 2006-07-31 | 2008-09-25 | Gueorgui Milev Mihaylov | Blast energy accumulator and energy conversion device and method |
| KR101309870B1 (en) * | 2012-10-15 | 2013-09-16 | 주식회사 크로시스 | Reverse osmosis desalination apparatus with improved energy recovering process |
-
2014
- 2014-09-19 CN CN201410484640.4A patent/CN104229939B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102949934A (en) * | 2012-11-14 | 2013-03-06 | 中冶海水淡化投资有限公司 | Reverse osmosis seawater desalination energy recovery device and switcher thereof |
| CN103191642A (en) * | 2013-03-26 | 2013-07-10 | 国家***天津海水淡化与综合利用研究所 | Pressure exchange cylinder and valve-control pressure exchanger for reverse osmosis desalting system |
| CN103230745A (en) * | 2013-05-07 | 2013-08-07 | 杭州（火炬）西斗门膜工业有限公司 | Differential pressure booster-type energy recovery device based on reverse osmosis system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104229939A (en) | 2014-12-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101782095B (en) | Differential energy recovery device and method for seawater desalination system | |
| CN201730780U (en) | Hydraulically driven difunctional multi-cylinder slurry pump | |
| CN103979092A (en) | Deep-sea buoyancy regulating system | |
| CN102815766B (en) | Liquid pressure energy recovery device based on full rotation valves | |
| CN102108847A (en) | Dual well balance type hydraulic pumping unit and working method thereof | |
| CN104261516B (en) | A kind of fluid pressure energy recovery method based on piston type liquid switch | |
| CN201747684U (en) | Rapidly hydraulic driving system | |
| CN104229939B (en) | A kind of fluid pressure energy retracting device based on piston type liquid switch | |
| CN201606355U (en) | Differential energy recovering device used for seawater desalting system | |
| CN105883977B (en) | A kind of energy regenerating Miniature seawater desalination device of and plunger pump cooperation | |
| CN201747701U (en) | Oil-leak monitoring system of hydraulic servo pump station | |
| CN105972259A (en) | Quick reversing valve for fluid | |
| CN103062339B (en) | For the speed reducer of reamer in cutter suction dredger | |
| CN201288715Y (en) | Directional control valve driven by hydraulic pressure | |
| CN105221888B (en) | Telescopic internal expanding type plugging device for submarine pipeline | |
| CN205978721U (en) | A rotary valve for pressure energy is retrieved | |
| CN2917761Y (en) | Plunger piston pull rod type four-figure directional selecting valve for pressure exchange type energy retracting device | |
| CN202785753U (en) | Liquid pressure energy recovering device based on full rotating valve | |
| CN206655858U (en) | A kind of low abrasion hydraulic transmission | |
| CN102287409B (en) | Hydraulic follow-up rotating device | |
| CN205472798U (en) | Fluid pressure can recovery unit based on rotation type special -shaped axis end face seal switch | |
| CN106745518B (en) | Double-stroke sea water desalting device based on pressure delay permeation and reverse osmosis | |
| CN212297102U (en) | Rotary valve type oil distribution valve regulated and controlled by variable frequency motor | |
| CN105565437B (en) | Liquid pressure energy recovery method based on rotary special-shaped axis end face seal switch | |
| CN109316967B (en) | Self-driven double-turntable type energy recovery device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |