CN1429995A - Fluid pressure exchange technique and fluid pressure exchange device - Google Patents
Fluid pressure exchange technique and fluid pressure exchange device Download PDFInfo
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Abstract
A fluid pressure exchange technique features that the pressure energy of high-pressure fluid is transferred to the low-pressure fluid to make it become higi-pressure fluid, so recovering the residual pressure of high-pressure fluid. Its apparatus has a pressure exchanging container whose diaphragm or piston can transfer pressure but isolate two fluids from each other and a switching valve set playing the control role in fluid pressure exchange procedure.
Description
Relate to the field
The present invention mainly applies to the recovery of fluid residue pressure energy, belongs to energy recovery and utilizes technical field, particularly the hydrodynamic pressure switching technology and the hydrodynamic pressure switch of the exchange of the pressure energy between high-pressure liquid and low-pressure fluid.
Background technique
As everyone knows, exist various heat exchangers in the prior art,, reclaim the waste heat of fluid by the thermal energy exchange between high temperature fluid and cryogen.In fact, in nature, life and industrial and agricultural production, exist a large amount of fluid overbottom pressure, also can recovery and reuse.The present invention just is based on this kind consideration, exploitation can be used for hydrodynamic pressure switching technology and the hydrodynamic pressure switch (also claiming to change depressor) that the fluid residual pressure reclaims, this technology is different with the hydraulic power generation technology that the current potential energy changes electric energy into, the present invention is a kind of pressure-exchange technology, promptly a kind of pressure energy of fluid is passed to one other fluid, be that a kind of pressure energy reclaims and utilize new ideas, appearance of the present invention, not only can reduce the consumption and the waste of the resource and the energy, and to effectively and reasonably utilizing the eminence space, minimizing capital construction land used amount etc. all has and important meaning.
Summary of the invention
The purpose of this invention is to provide a kind of fluid residual pressure recovery and reuse technology and device of being used for, this technology can pass to low-pressure fluid to the pressure energy of high-pressure liquid, make low-pressure fluid become high-pressure liquid, realize the pressure energy exchange between high-pressure liquid and low-pressure fluid, the overbottom pressure of high-pressure liquid is reclaimed, and boosting of low-pressure fluid need not consume extra energy or make its required energy consumption reduce to minimum.
Pressure-exchange between the high low pressure fluid is by changing pressure vessel and supporting valve group realizes, and is different with purpose because of the field of employment, and multiple combining form can be arranged, and enumerates three class technology modes below:
One of hydrodynamic pressure exchange principle, as shown in Figure 1, pressure exchanger changes pressure vessel 1H and 2H and four three- way valve 1f, 2f, 3f and 4f by two and forms.Change barrier film or piston that pressure vessel inside has been provided with propagation of pressure and buffer fluid effect, diaphragm or piston are divided into and are not communicated with mutually and two-part of variable volume changing pressure vessel.A side of wherein accepting high-pressure liquid is called high voltage terminal, and a side of accepting low-pressure fluid is called low voltage terminal; Along with moving of barrier film or piston, the volume of high voltage terminal and low voltage terminal is in continuous variation, and when the volume of an end increased, the volume of the other end reduced in equivalent; And when the volume vanishing of an end, the volume of the other end becomes maximum." A advances " of three-way valve 2f is the low-pressure fluid inlet, and " B advances " of three-way valve 3f is the high-pressure liquid inlet, and " A goes out " of three-way valve 1f is the water out that boosts behind the low-pressure fluid pressurized, and " B goes out " of three-way valve 4f is the release water out after the high-pressure liquid pressure transmission.The 1. outlet of three-way valve 2f and the 2. inlet of three-way valve 1f all with change pressure vessel 1H low voltage terminal and link to each other, the 1. inlet of three-way valve 1f and the 2. outlet of three-way valve 2f all with change pressure vessel 2H low voltage terminal and link to each other, the 2. outlet of three-way valve 3f and the 1. inlet of three-way valve 4f all with change pressure vessel 1H high voltage terminal and link to each other, three- way valve 3f 1. export and the 2. inlet of three-way valve 4f all with change pressure vessel 2H high voltage terminal and link to each other.During work, earlier one of them is changed the full low-pressure fluid of low voltage terminal storage of pressure vessel (for example 1H), another changes the full high-pressure liquid of high voltage terminal storage of pressure vessel (for example 2H), then the valve plate of three-way valve is switched to the orientation of dotted line, this moment, high-pressure liquid was by " B advances " of three-way valve 3f with 2. export and enter the high voltage terminal that changes pressure vessel 1H, change pressure vessel 1H low voltage terminal fluid and boost because of the pressure of accepting the transmission of high voltage terminal fluid, the fluid after low pressure area boosts is seen off through 2. import and " A goes out " of three-way valve 1f; Simultaneously, low-pressure fluid by " A advances " of three- way valve 2f and 2. outlet enter the low voltage terminal that changes pressure vessel 2H, the fluid after the high voltage terminal release is discharged from " B goes out " by the 2. import of three-way valve 4f.When changing pressure vessel 1H low voltage terminal fluid near by emptying with when changing that pressure vessel 2H low voltage terminal fluid is approaching to be full of entirely, the valve plate of three-way valve group is all switched to the orientation of solid line, this moment, high-pressure liquid was by " B advances " of three-way valve 3f with 1. export and enter the high voltage terminal that changes pressure vessel 2H, change pressure vessel 2H low voltage terminal fluid and boost because of the pressure of accepting the transmission of high voltage terminal fluid, the fluid after low pressure area boosts is seen off through 1. import and " A goes out " of three-way valve 1f; Simultaneously, low-pressure fluid by " A advances " of three- way valve 2f and 1. outlet enter the low voltage terminal that changes pressure vessel 1H, the 1. import of fluid by three-way valve 4f of changing after the release of pressure vessel 1H high voltage terminal is discharged from " B goes out "; When changing pressure vessel 2H low voltage terminal fluid near by emptying with when changing that pressure vessel 1H low voltage terminal fluid is approaching to be full of entirely, again the valve plate of three-way valve group is all switched to the orientation of dotted line, continuous so alternately handover operation can be realized the continuous pressure exchange between the high low pressure fluid.
When system is provided with the fluid regulation facility of sufficient amount or actual demand, also can realize being interrupted changing and press operation with single pressure vessel and the supporting valve group thereof of changing, its principle sees accompanying drawing 2 for details.Among the figure, be the low-pressure fluid end if change the upper end of pressure vessel 1H, the lower end of changing pressure vessel 1H is the high-pressure liquid end, the B of three-way valve 1f advances to be the low-pressure fluid import, B goes out for changing the fluid output that boosts after the pressure, and the A of three-way valve 2f advances to be the high-pressure liquid import, and A goes out for changing to press back release fluid output.When the valve plate of valve group switches to dotted line position, change pressure vessel 1H be in low-pressure fluid mend into and unload hydraulic fluid and discharge state; When the valve plate of valve group switched to solid line position, changing pressure vessel 1H, to be in high-pressure liquid be low-pressure fluid pressure transmission state.
If change the two ends alternately use by turns of height pressure side each other of pressure vessel, can realize many other use, as the fluid mass in the fluid delivery process all with, solute in the fluid delivery process and solvent constant volume quantitative reaction, the batching and carrying etc. of medicament, this kind working principle sees accompanying drawing 3 for details.Among the figure, when an end (as left end) that changes pressure vessel 1H is the high-pressure liquid end, its the other end (as right-hand member) is the low-pressure fluid end just, this moment the three-way valve group the valve plate orientation of solid line in the drawings, high-pressure liquid " S advances " and " Yj advances " enter the high voltage terminal that changes pressure vessel 1H by 1f, and the fluid that changes simultaneously behind the low voltage terminal pressurized of pressure vessel 1H is seen off by " Yy goes out " by three-way valve 2f.When the fluid that changes pressure vessel 1H right-hand member is transferred when finishing, the fluid that changes pressure vessel 1H left end just in time reacts and finishes, this moment is with the valve plate of the three-way valve group orientation of dotted line in the drawings, the high low pressure that then changes depressor corrects exchange, high-pressure liquid " S advances " and " Yi advances " enter the high voltage terminal that changes pressure vessel 1H by three-way valve 2f, the fluid that changes simultaneously behind the low voltage terminal pressurized of pressure vessel 1H is seen off by " Yy goes out " by three-way valve 1f, and the switching by the three-way valve group just can realize changing alternately exchanging of depressor height pressure side and uses like this.The pressure mode of changing like this has a lot of unique significance because in practicality, some of them can be seen in the embodiment of back.
It needs to be noted that the pressure after low-pressure fluid boosts will be lower than the pressure before the high-pressure liquid pressure transmission, its difference should be the fluid total head loss of pressure-exchange system.In actual use, when the pressure after boosting was lower than actual demand pressure, insufficient section can provide with the series connection pressing mode.When the underpressure that low-pressure fluid occurs when will change the situation that the high-pressure liquid after the release is replaced away in the pressure vessel, low-pressure fluid need be sent into pressing mode and change in the pressure vessel.
Summary is got up, cardinal principle of the present invention is: the recovery of fluid pressure energy and utilization are that the pressure-exchange mode with a kind of " press change press " realizes, pressure-exchange between fluid realizes by the hydrodynamic pressure switch, the hydrodynamic pressure switch is mainly by changing pressure vessel and the switching valve group constitutes, change and be provided with barrier film or piston type material in the pressure vessel, in the pressure-exchange process, play propagation of pressure and isolate two kinds of fluids, the switching valve group is started to control to make in the hydrodynamic pressure exchange process and is used, multi-form pressure exchanging container and polytype switch valve make up, and can develop the hydrodynamic pressure switch of various ways and different purposes; Utilize the hydrodynamic pressure switch to carry out pressure-exchange between fluid, can adopt two pressure vessels that change to realize changing pressure continuously, also can adopt the monodromy pressure vessel to carry out interruption between fluid and change and press or the technological operation of other purposes; For the pressure-exchange between the fluid that contains some impurity, more additional eliminating foreign material facilities on the pressure vessel can changed; Pressure exchanger can be used for the pressure-exchange between various fluids, particularly is applicable to the pressure-exchange between liquid-liquid and gas-liquid.
The shell that changes pressure vessel can be a different shape, as sphere, elliposoidal, cylindrical shape (end socket be flat or ellipse etc.), rectangle or polyhedron shape etc.
The shell that changes pressure vessel can be various materials, as carbon steel, stainless steel, glass fibre reinforced plastics, plastics or sandwich etc.
Change the structure that plays isolation effect between propagation of pressure and fluid in the pressure vessel and can be various ways, as flexible partition, rigidity piston or the steel mixed form that is combined to form etc. that softens.
Change the material that plays isolation interaction medium between propagation of pressure and fluid in the pressure vessel and can be various materials, can be rubber, plastic film or fibrous composite etc. as the flexible partition material, the rigidity piston material can be carbon steel, stainless steel, glass fibre reinforced plastics, plastics or sandwich etc.
As required, change the medium that plays isolation effect between propagation of pressure and fluid in the depressor, can place with any orientation and form, as horizontal, vertical or inclination etc.
The supporting switching valve group with changing pressure vessel, its quantity and form become with concrete production technology.
Switch valve structure can be the split stand alone type, also can be the integral type combined type, and also available two-way valve replaces; Its material also can be varied.
Direct significance of the present invention is by the pressure-exchange between fluid, reclaims the residual pressure of some fluid, promptly passes to the mode of another fluid to be boosted by the residual pressure that makes a fluid, reaches the effect of reclaiming the energy and reducing energy consumption.But the otherwise a variety of reformation meaning that is caused by this invention is very great.Such as, in some water and waste water treatment, water and waste water disposal facility required volume generally all bigger.If the treatment facility development that hoists, because of water and waste water hoist lifting, continuously running year in year out, consume a large amount of electric energy, this is extremely uneconomic, have to solve this problem by sacrificing the mode of taking up an area of usually, so water and waste water treatment plant's occupation of land are generally all bigger.If adopt " hydrodynamic pressure switching technology " of the present invention, just can make water and waste water disposal facility under the situation of no pressure energy waste, the spatial development that reasonably hoists has so not only been saved occupation of land, and capital investment, regular operating cost also can be reduced greatly; Particularly water and the waste water disposal facility development that hoists, solute concentration in hydraulics, water and the waste water in water and the waste water disposal facility etc. all can be optimized, therefore also can improve the treatment effect of water and waste water greatly, or can improve the Processing capacity of water and waste water disposal facility greatly.Utilize external high pressure feed pressure, the natural water level discrepancy in elevation or high-order water overbottom pressure etc., can promote low pool or handle after feedwater, need carry the waste water that far send, cooled circulation feedwater with pressure, for feedwater, the water that send high-order tower and the waterscape spray head etc. of air-conditioning cooling usefulness, these can reclaim and conserve energy to some extent.In addition, utilize " hydrodynamic pressure switching technology " can also realize fluid all with, adjusting and energy-conservation conveying etc.
Description of drawings
Fig. 1 is hydrodynamic pressure switching technology and the pressure exchanger fundamental diagram that changes pressure work continuously.
Fig. 2 is interrupted to change the hydrodynamic pressure switching technology and the pressure exchanger fundamental diagram of pressure work.
Fig. 3 is hydrodynamic pressure switching technology and the pressure exchanger fundamental diagram with functions such as homogeneous and energy-conservation conveyings.
Embodiment
Embodiment 1: be used for the high wastewater biochemical processing reaction tower of 80m, this tower water inlet need rise to the height of 79m, the about 78.8m of water outlet overbottom pressure after the biochemical treatment, adopt " hydrodynamic pressure switching technology " of the present invention, being used to biochemical reactor water outlet overbottom pressure into, water promotes, the moving head of the reality of system and total hydraulic loss are about 2m, so the actual lifting height of water inlet only is about 2m, the additional of this portion of energy is that water series connection of pumps pressurization (having plenty of with methods such as air-lift units) realizes, energy recovery is up to more than 95% like this, and its actual consumption is quite low.Yet, owing to adopted highly bigger biochemical reaction tower, its floor space is lacked a lot of times than highly less biochemical reaction tank, and the waste water treatment ability the former increase much than the latter, for some waste water, the comparable latter of the Processing capacity that has is high 7 times more than.
Embodiment 2: the tower reactor that the flocculation sediment that is used to feed water is handled, energy-saving principle is with embodiment 1, its outstanding advantage is except that saving the occupation of land, the hydraulics that main is in can strict control flocculation reaction process, that is more satisfactory flocculation reaction effect can be arranged, therefore can improve the water treatment effect.
Embodiment 3: for example to come water pressure be 0.6MPa to certain factory's outside network, it is the production fire-water pond of 8h process water and 3h fire consumption through the water storage volume earlier that this water needs, then be forced into 0.5MPa again and send process water, as seen this system has bigger energy dissipation.After adopting " hydrodynamic pressure switching technology " of the present invention, just can be used for the overbottom pressure of water fully to promote the water outlet of producing fire-water pond, so just can save follow-up with the water pump required electric energy that pressurizes.
Embodiment 4: for example to come water pressure be 0.4MPa to certain factory's outside network, and wherein part water will be placed into the absorbing well, absorption well of cooling feedwater, and as the supplementing water of recirculating cooling water system, come the pressure energy of water to be wasted in vain this moment.If the waste water of the no more than recirculated cooling water amount of makeup water of the water yield is arranged in the factory, need be pressurized to water body or waste water treatment plant that 0.3MPa delivers to a distant place, at this moment adopt " hydrodynamic pressure switching technology " of the present invention, overbottom pressure with the recirculated cooling water supplementing water promotes nothing pressure waste water, only need be pressurized to waste water about 0.03MPa with pump to deliver in " changing depressor " and get final product, and do not need waste water is pressurized to 0.3MPa, so just saved nearly 90% energy consumption.
Embodiment 5: the process form of accompanying drawing 3 is used for batching of medicament.During beginning, earlier medicament (solid chemicals need be dissolved as liquid earlier) and water are sent into an end (as the left side) of pressure exchanging container to full, then medicament and water are switched to the other end (as the right side) of pressure exchanging container, by the pressure effect that transmit on the exchanging container right side, the good medicament of its left side homogeneous is delivered to the dispensing point; After the left side medicament has sent, again medicament and water are switched to the left side of exchanging container, simultaneously homogeneous good medicament in right side is delivered to the dispensing point.So continuous switching can realize batching continuously of medicament.Such system is not only energy-conservation, and takes up an area of and minimizing medicament labor intensity of operating personnel for reducing, and is all very meaningful.
Embodiment 6: utilize the process form of accompanying drawing 2, realize air blast air-lift unit liquid preparation.It is 50Pa residue air blast air that there is the blast of q.s certain waste water treatment plant, liquid preparation need be sent into the high pharmacy slot of 2.5m, adopt the process form shown in the accompanying drawing 2, with manually medicament to the low voltage terminal of going into to change pressure vessel, then feed the air blast air to the high voltage terminal that changes pressure vessel, can send into highly bigger pharmacy slot to medicament, this can alleviate the medicament labor intensity of operating personnel greatly, and has changed the working environment of site for labour well.
Claims (10)
1. hydrodynamic pressure switching technology, it is characterized in that: the recovery of fluid pressure energy and utilization are that the pressure-exchange mode with a kind of " press change press " realizes, pressure-exchange between fluid realizes by the hydrodynamic pressure switch, the hydrodynamic pressure switch is mainly by changing pressure vessel and the switching valve group constitutes, change and be provided with barrier film or piston type material in the pressure vessel, in the pressure-exchange process, play propagation of pressure and isolate two kinds of fluids, the switching valve group is started to control to make in the hydrodynamic pressure exchange process and is used, multi-form pressure exchanging container and polytype switch valve make up, and can develop the hydrodynamic pressure switch of various ways and different purposes; Utilize the hydrodynamic pressure switch to carry out pressure-exchange between fluid, can adopt two pressure vessels that change to realize changing pressure continuously, also can adopt the monodromy pressure vessel to carry out interruption between fluid and change and press or the technological operation of other purposes; For the pressure-exchange between the fluid that contains some impurity, more additional eliminating foreign material facilities on the pressure vessel can changed; Pressure exchanger can be used for the pressure-exchange between various fluids, particularly is applicable to the pressure-exchange between liquid-liquid and gas-liquid.
2. the hydrodynamic pressure switch that hydrodynamic pressure switching technology according to claim 1 is adopted, it is characterized in that: the shell that changes pressure vessel can be a different shape, is flat or oval-shaped cylindrical shape, rectangle or polyhedron shape etc. as sphere, elliposoidal, end socket.
3. the hydrodynamic pressure switch that hydrodynamic pressure switching technology according to claim 1 is adopted is characterized in that: the shell that changes pressure vessel can be various materials, as carbon steel, stainless steel, glass fibre reinforced plastics, plastics or sandwich etc.
4. the hydrodynamic pressure switch that hydrodynamic pressure switching technology according to claim 1 is adopted, it is characterized in that: change the structure that plays isolation effect between propagation of pressure and fluid in the pressure vessel and can be various ways, as flexible partition, rigidity piston or the steel mixed form that is combined to form etc. that softens.
5. the hydrodynamic pressure switch that hydrodynamic pressure switching technology according to claim 1 is adopted, it is characterized in that: change the material that plays isolation interaction medium between propagation of pressure and fluid in the pressure vessel and can be various materials, can be rubber, plastic film or fibrous composite etc. as the flexible partition material, the rigidity piston material can be carbon steel, stainless steel, glass fibre reinforced plastics, plastics or sandwich etc.
6. the hydrodynamic pressure switch that hydrodynamic pressure switching technology according to claim 1 is adopted, it is characterized in that: as required, change the medium that plays isolation effect between propagation of pressure and fluid in the depressor, can place with any orientation and form, as horizontal, vertical or inclination etc.
7. the hydrodynamic pressure switch that hydrodynamic pressure switching technology according to claim 1 is adopted, it is characterized in that: supporting switching valve group with changing pressure vessel, its quantity and form become with concrete production technology, switch valve structure can be the split stand alone type, also can be the integral type combined type, also available two-way valve replaces; Its material also can be varied.
8. the hydrodynamic pressure switch that hydrodynamic pressure switching technology according to claim 1 is adopted, it is characterized in that: pressure exchanger changes pressure vessel 1H and 2H and four three-way valve 1f, 2f, 3f and 4f by two and forms, change barrier film or piston that pressure vessel inside has been provided with propagation of pressure and buffer fluid effect, diaphragm or piston are divided into and are not communicated with mutually and two-part of variable volume changing pressure vessel, a side of wherein accepting high-pressure liquid is called high voltage terminal, and a side of accepting low-pressure fluid is called low voltage terminal; " A advances " of three-way valve 2f is the low-pressure fluid inlet, " B advances " of three-way valve 3f is the high-pressure liquid inlet, " A goes out " of three-way valve 1f is the fluid output that boosts behind the low-pressure fluid pressurized, and " B goes out " of three-way valve 4f is the release fluid output after the high-pressure liquid pressure transmission; The 1. outlet of three-way valve 2f and the 2. inlet of three-way valve 1f all with change pressure vessel 1H low voltage terminal and link to each other, the 1. inlet of three-way valve 1f and the 2. outlet of three-way valve 2f all with change pressure vessel 2H low voltage terminal and link to each other, the 2. outlet of three-way valve 3f and the 1. inlet of three-way valve 4f all with change pressure vessel 1H high voltage terminal and link to each other, three-way valve 3f 1. export and the 2. inlet of three-way valve 4f all with change pressure vessel 2H high voltage terminal and link to each other.
9. the hydrodynamic pressure switch that hydrodynamic pressure switching technology according to claim 1 is adopted, it is characterized in that: device changes pressure vessel and supporting valve group constitutes by single, the upper end that pressure vessel 1H is changed in setting is the low-pressure fluid end, the lower end of changing pressure vessel 1H is the high-pressure liquid end, the B of three-way valve 1f advances to be the low-pressure fluid import, B goes out for changing the fluid output that boosts after the pressure, the A of three-way valve 2f advances to be the high-pressure liquid import, A goes out for changing to press back release fluid output, when the valve plate of valve group switches to dotted line position, changing pressure vessel 1H is in low-pressure fluid and fills fluid and unload hydraulic fluid current drainage body state, at this moment, the low-pressure fluid import with change pressure vessel 1H low-pressure fluid end and link to each other, the release fluid output with change pressure vessel 1H high-pressure liquid end and link to each other; When the valve plate of valve group switched to solid line position, changing pressure vessel 1H, to be in high-pressure liquid be low-pressure fluid pressure transmission state, at this moment, the high-pressure liquid import with change pressure vessel 1H high-pressure liquid end and link to each other, boost fluid output with change pressure vessel 1H low-pressure fluid end and link to each other.
10. the hydrodynamic pressure switch that hydrodynamic pressure switching technology according to claim 1 is adopted, it is characterized in that: device changes pressure vessel and supporting valve group constitutes by single, the left end that pressure vessel 1H is changed in setting is the high-pressure liquid end, right-hand member is the low-pressure fluid end, this moment the three-way valve group the valve plate orientation of solid line in the drawings, high-pressure liquid " S advances " and " Yj advances " enter the high voltage terminal that changes pressure vessel 1H by 1f, and the fluid that changes simultaneously behind the low voltage terminal pressurized of pressure vessel 1H is seen off by " Yy goes out " by three-way valve 2f; When the fluid that changes pressure vessel 1H right-hand member is transferred when finishing, the fluid that changes pressure vessel 1H left end just in time reacts and finishes, this moment is with the valve plate of the three-way valve group orientation of dotted line in the drawings, the high low pressure that then changes depressor corrects exchange, high-pressure liquid " S advances " and " Yj advances " enter the high voltage terminal that changes pressure vessel 1H by three-way valve 2f, the fluid that changes simultaneously behind the low voltage terminal pressurized of pressure vessel 1H is seen off by " Yy goes out " by three-way valve 1f, and the switching by the three-way valve group just can realize changing alternately exchanging of depressor height pressure side and uses like this.
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| CN 03101867 CN1429995A (en) | 2003-01-24 | 2003-01-24 | Fluid pressure exchange technique and fluid pressure exchange device |
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| CN 03101867 CN1429995A (en) | 2003-01-24 | 2003-01-24 | Fluid pressure exchange technique and fluid pressure exchange device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563122A (en) * | 2011-12-09 | 2012-07-11 | 杭州水处理技术研究开发中心有限公司 | Continuously switchable four-way rotary valve |
| CN102588355A (en) * | 2012-02-08 | 2012-07-18 | 北京海思清膜科技有限公司 | Liquid-liquid pressure exchange device and application method thereof |
| CN104192569A (en) * | 2014-08-19 | 2014-12-10 | 靳晓燕 | Fluid feeding device |
| CN106784931A (en) * | 2017-01-05 | 2017-05-31 | 苏州久润能源科技有限公司 | A kind of flow battery equilibrated valve |
| CN109655349A (en) * | 2018-12-18 | 2019-04-19 | 海洋石油工程（青岛）有限公司 | The high pressure pressure testing device of pipeline for remotely controlling |
| CN112922806A (en) * | 2021-01-19 | 2021-06-08 | 深圳润德工程有限公司 | Hydrogen and natural gas separation system and method and gas pressure transmission device |
| CN113117504A (en) * | 2019-12-31 | 2021-07-16 | 中国石油化工股份有限公司 | System and method for separating mixed gas by energy recovery type hydrate method |
| CN113117503A (en) * | 2019-12-31 | 2021-07-16 | 中国石油化工股份有限公司 | System and method for separating mixed gas by energy-saving hydrate method |
-
2003
- 2003-01-24 CN CN 03101867 patent/CN1429995A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563122A (en) * | 2011-12-09 | 2012-07-11 | 杭州水处理技术研究开发中心有限公司 | Continuously switchable four-way rotary valve |
| CN102563122B (en) * | 2011-12-09 | 2013-11-20 | 杭州水处理技术研究开发中心有限公司 | Continuously switchable four-way rotary valve |
| CN102588355A (en) * | 2012-02-08 | 2012-07-18 | 北京海思清膜科技有限公司 | Liquid-liquid pressure exchange device and application method thereof |
| CN104192569A (en) * | 2014-08-19 | 2014-12-10 | 靳晓燕 | Fluid feeding device |
| CN106784931A (en) * | 2017-01-05 | 2017-05-31 | 苏州久润能源科技有限公司 | A kind of flow battery equilibrated valve |
| CN109655349A (en) * | 2018-12-18 | 2019-04-19 | 海洋石油工程（青岛）有限公司 | The high pressure pressure testing device of pipeline for remotely controlling |
| CN113117504A (en) * | 2019-12-31 | 2021-07-16 | 中国石油化工股份有限公司 | System and method for separating mixed gas by energy recovery type hydrate method |
| CN113117503A (en) * | 2019-12-31 | 2021-07-16 | 中国石油化工股份有限公司 | System and method for separating mixed gas by energy-saving hydrate method |
| CN113117504B (en) * | 2019-12-31 | 2023-03-28 | 中国石油化工股份有限公司 | System and method for separating mixed gas by energy recovery type hydrate method |
| CN112922806A (en) * | 2021-01-19 | 2021-06-08 | 深圳润德工程有限公司 | Hydrogen and natural gas separation system and method and gas pressure transmission device |
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