CN111520303A - Novel pressure energy recovery device - Google Patents
Novel pressure energy recovery device Download PDFInfo
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- CN111520303A CN111520303A CN202010483704.4A CN202010483704A CN111520303A CN 111520303 A CN111520303 A CN 111520303A CN 202010483704 A CN202010483704 A CN 202010483704A CN 111520303 A CN111520303 A CN 111520303A
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- 238000011084 recovery Methods 0.000 title claims abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 233
- 239000010687 lubricating oil Substances 0.000 claims abstract description 8
- 210000004907 gland Anatomy 0.000 claims description 18
- 238000006243 chemical reaction Methods 0.000 claims description 17
- 238000002955 isolation Methods 0.000 claims description 14
- 102000004315 Forkhead Transcription Factors Human genes 0.000 claims description 6
- 108090000852 Forkhead Transcription Factors Proteins 0.000 claims description 6
- 239000012530 fluid Substances 0.000 abstract description 17
- 230000008901 benefit Effects 0.000 abstract description 8
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 230000009467 reduction Effects 0.000 abstract description 3
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- 238000010612 desalination reaction Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005465 channeling Effects 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- -1 chemical engineering Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/053—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement with actuating or actuated elements at the inner ends of the cylinders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/0404—Details or component parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/0404—Details or component parts
- F04B1/0452—Distribution members, e.g. valves
- F04B1/0465—Distribution members, e.g. valves plate-like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/053—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement with actuating or actuated elements at the inner ends of the cylinders
- F04B1/0536—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement with actuating or actuated elements at the inner ends of the cylinders with two or more serially arranged radial piston-cylinder units
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/006—Crankshafts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
- F04B9/10—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid
- F04B9/109—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers
- F04B9/1095—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers having two or more pumping chambers in series
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Hydraulic Motors (AREA)
Abstract
The invention discloses a novel pressure energy recovery device, which comprises a crankshaft box body, a crankshaft assembly, a lubricating oil disc, five hydraulic cylinders, a rotary pin, a liquid distribution disc body, a liquid distribution disc pressing cover, a liquid receiving disc and an input liquid low-pressure pump set, wherein the crankshaft assembly is arranged in the crankshaft box body; the lower end of the rotating pin is inserted into the top of the crankshaft, and the liquid distribution disc body is sleeved outside the rotating pin and is in rotating connection with the rotating pin; the liquid distribution disc is clamped at the upper end of the rotating pin; the liquid distribution plate pressure cover is fixed with the liquid distribution plate body on the liquid distribution plate, the liquid receiving plate is sleeved on the rotating pin, and the input liquid low-pressure pump set is connected with the input liquid inlet and outlet of the five hydraulic cylinders. The device has the advantages that the device can continuously, efficiently and stably use the discharged fluid as a power source, realizes the function of pressurizing the input liquid, does not need to use a motor pump set for pressurization, achieves the purposes of energy conservation and consumption reduction, and has remarkable economic and environmental benefits.
Description
Technical Field
The invention relates to a novel pressure energy recovery device.
Background
In the industries of petroleum, chemical industry, seawater desalination and the like, in a chemical reaction kettle system, a fluid (input liquid) needs to be changed into a high-pressure fluid through a high-pressure motor pump set, the high-pressure fluid is input into a reaction kettle, and the high-pressure fluid is discharged by the system after chemical reaction in the reaction kettle. The discharged high-pressure fluid is required to be discharged into a discharge liquid system after being reduced in pressure by a pressure reducing valve. In the process, input liquid is changed into high-pressure fluid, a pump set needs to consume a large amount of electric energy, high-pressure discharge liquid is changed into low-pressure fluid, a pressure reducing valve is needed, and a large amount of heat energy is generated.
An energy recovery device is needed at present, and pressure energy of discharged liquid discharged from a reaction kettle is recovered and is provided for pressurizing input liquid for use; this reduces the pressure relief valve and reduces the amount of power consumed by the input hydro-motor pump set.
Disclosure of Invention
The invention aims to provide a novel pressure energy recovery device, which can continuously, efficiently and stably use the discharged fluid as a power source, realize the function of pressurizing input liquid, does not need to use a motor pump set for pressurization, achieves the purposes of saving energy and reducing consumption, and has obvious economic benefit and environmental benefit.
The technical scheme is as follows:
a novel pressure energy recovery device, which comprises a crankcase body,
the crankshaft assembly is arranged in the crankshaft box body; the crankshaft assembly comprises a crankshaft, rollers, a crankshaft disc and five earrings, the crankshaft is provided with an eccentric part, the crankshaft is arranged in a crankshaft box body, two ends of the crankshaft are rotatably supported on a box body plate of the crankshaft box body, the rollers are sleeved on the periphery of the eccentric part of the crankshaft, and the crankshaft disc is sleeved on the periphery of the rollers and movably connected with the five earrings and evenly arranged on the periphery of the crankshaft disc;
the lubricating oil disc is fixed on the crankcase body and communicated with the bottom of the crankshaft;
the cylinder bodies of all the hydraulic cylinders are fixed on the outer surface of the crankcase body, and the end parts of all the piston rods are respectively hinged with five earrings; the hydraulic cylinder comprises a cylinder body, a piston rod, a discharge liquid piston and an input liquid piston, wherein the inner cavity of the cylinder body is divided into two independent inner cavities, the piston rod simultaneously penetrates through the two inner cavities, the discharge liquid piston and the input liquid piston are respectively positioned in the two inner cavities, and the discharge liquid piston and the input liquid piston are vertically connected with the piston rod; the discharge liquid piston divides the inner cavity into a rodless cavity and a first isolation cavity, the input liquid piston divides the inner cavity into a rod cavity and a second isolation cavity, the rodless cavity is provided with a discharge liquid inlet and a discharge liquid outlet, the rod cavity is provided with an input liquid inlet and a discharge liquid outlet, and the first isolation cavity and the second isolation cavity are provided with cavity drain outlets;
the upper end and the lower end of the rotating pin are provided with a section of square shaft, and the square shaft at the lower end is inserted into the square groove at the top of the crankshaft;
the liquid distribution disc body is sleeved outside the rotating pin and is connected with the rotating pin in a rotating mode, and the liquid distribution disc body is arranged on the crankcase body;
the liquid distribution disc is clamped with the upper square shaft of the rotating pin and is positioned outside the liquid distribution disc body; two waist-shaped cavities are symmetrically arranged on the liquid distribution plate and respectively form a high-pressure liquid cavity and a liquid discharge cavity;
the liquid distribution plate gland covers the liquid distribution plate, the liquid distribution plate gland is fixed with the liquid distribution plate body, the top of the liquid distribution plate gland is provided with a high-pressure liquid inlet, and when the high-pressure liquid inlet is communicated with the high-pressure cavity, high-pressure discharge liquid of an external high-pressure discharge liquid reaction kettle enters the high-pressure cavity; the liquid distribution plate gland is provided with a liquid discharge outlet, and when the liquid discharge outlet is communicated with the liquid discharge cavity, the liquid discharge outlet can discharge liquid discharge;
the liquid receiving plate is positioned right below the liquid distribution plate and sleeved on the rotating pin, and the liquid distribution plate body and the liquid distribution plate gland clamp the liquid receiving plate simultaneously; the body of the liquid receiving disc is provided with five circular hole interfaces, five channels are respectively formed on the body of the liquid distribution disc corresponding to the five circular hole interfaces, and the five circular hole interfaces are respectively connected with the discharge liquid inlet and outlet of the five hydraulic cylinders through pipelines and channels;
the input hydraulic low-pressure pump set is connected with input hydraulic inlets and outlets of the five hydraulic cylinders through a pipeline and a second one-way valve, and low-pressure input liquid is filled into the rod cavities of the five hydraulic cylinders; meanwhile, the input liquid inlets and outlets of the five hydraulic cylinders are communicated with an external input liquid reaction kettle through first one-way valves arranged on pipelines (17).
Preferably, the crankshaft disc and the roller are axially limited by an inner ring outer retainer ring, an inner ring inner retainer ring and a first elastic retainer ring, wherein the inner ring inner retainer ring is of a half-shell type, the inner ring inner retainer ring is sleeved on the periphery of the roller and is partially inserted into an annular groove on the inner side surface of the crankshaft disc, the inner ring outer retainer ring is of an integral type, the inner ring outer retainer ring is sleeved on the inner ring inner retainer ring, the first elastic retainer ring is arranged in a first retainer ring groove on the inner side surface of the crankshaft disc, and the first elastic retainer ring limits the inner ring outer retainer ring. The inner retainer ring of the inner ring is of a two-half structure, so that the ear ring is prevented from moving up and down; the inner ring outer retainer ring is of an integral structure, the inner ring inner retainer ring is prevented from being disengaged, and the first elastic retainer ring prevents the inner ring outer retainer ring from moving outwards.
Preferably, one end of the lug is tightly attached to the outer surface of the crankshaft disc, and the axial and radial movement of the lug is limited by the second elastic check ring, the outer ring inner check ring and the outer ring outer check ring arranged between the crankshaft disc and the connecting lug;
one end of the lug ring, which is tightly attached to the outer surface of the crankshaft disc, is provided with a limiting convex ring, an outer ring inner check ring is of a half sleeve type, the outer ring inner check ring is sleeved on the lug ring, one end of the outer ring inner check ring is inserted into an annular groove on the outer side surface of the crankshaft disc, and the other end of the outer ring inner check ring is pulled to close the limiting convex ring; the outer ring outer retainer ring is sleeved on the outer ring inner retainer ring and the ear ring, the second elastic retainer ring is arranged in a second retainer ring groove on the outer side surface of the crankshaft disc, and the second elastic retainer ring limits the outer ring outer retainer ring. The inner retainer ring of the outer ring is of a two-half structure, so that the ear ring is prevented from moving up and down; the outer retaining ring of the outer ring is of an integral structure, the inner retaining ring of the outer ring is prevented from being disengaged, and the second elastic retaining ring is used for preventing the outer retaining ring of the inner ring from moving outwards.
Preferably, the end part of a piston rod of the hydraulic cylinder is provided with a joint bearing, the end part of the piston rod is inserted into a shifting fork head arranged on an ear ring, and a pin shaft is inserted between the shifting fork head and the joint bearing.
Preferably, the crankcase body is composed of a lower cover, an intermediate body and an upper cover, and the lower cover, the intermediate body and the upper cover are fixed through bolts; the two ends of the crankshaft are respectively rotatably supported on the lower cover and the upper cover of the box body, cylindrical roller bearings are arranged between the crankshaft and the lower cover and between the crankshaft and the upper cover of the box body, and the cylinder body of the hydraulic cylinder is fixed with the intermediate body of the box body. The split mounting type structure of the crankcase body aims to be easy to assemble.
The input liquid low-pressure pump set, the input liquid reaction kettle and the high-pressure discharge liquid reaction kettle mentioned in the technical scheme of the invention are known in the technical field.
Compared with the prior art, the invention has the beneficial effects that:
1. the novel pressure energy recovery device can continuously, efficiently and stably use the discharged fluid as a power source, realize the function of pressurizing the input liquid, and does not need to use a motor pump set for pressurization. The purposes of energy saving and consumption reduction are achieved, and the economic benefit and the environmental benefit are obvious.
2. According to the novel pressure energy recovery device, the structure of the liquid distribution disc and the structural design of the crankshaft mechanism enable the five hydraulic cylinders to keep stable output under the linkage action of the crankshaft.
3. According to the novel pressure energy recovery device, in order to ensure that the discharged liquid and the input liquid in the cylinder body are separated, the isolation cavity is added in the hydraulic cylinder structure, so that the discharged liquid and the input liquid cannot be mixed together even if the hydraulic cylinder leaks.
Drawings
Fig. 1 is a schematic structural view of the novel pressure energy recovery device of the present embodiment.
FIG. 2 is a schematic diagram of the input liquid reactor of FIG. 1 with the piping, check valves, input liquid low pressure pump set and input liquid removed.
FIG. 3 is a top view of the structure of the hydraulic cylinder assembled with the crankshaft assembly.
FIG. 4 is a schematic view of the structure of the crankshaft assembly.
Fig. 5 is a schematic structural view of the hydraulic cylinder.
Fig. 6 is a liquid flow direction block diagram of the present embodiment.
Fig. 7 is a schematic structural view of the liquid distribution plate.
FIG. 8 is a schematic structural view of the liquid receiving tray.
Fig. 9 is a diagram of the matching working state of the liquid distribution plate and the liquid receiving plate (the high-pressure liquid cavity is communicated with the first round hole interface).
Fig. 10 is an operation state diagram (the discharge liquid chamber communicates with the first circular orifice port) after the liquid distribution plate in fig. 9 is rotated by 180 °.
Detailed Description
The technical solution of the present invention is described in detail below, but the scope of the present invention is not limited to the embodiments.
In order to make the disclosure of the present invention more comprehensible, the following description is further made in conjunction with fig. 1 to 10 and the detailed description.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example (b):
as shown in fig. 1, the novel pressure energy recovery device in this embodiment includes a crankcase, a crankshaft assembly 13, a lubricating oil pan 14, five hydraulic cylinders 1, a rotary pin 10, a fluid distribution pan body 12, a fluid distribution pan 9, a fluid distribution pan gland 11, a fluid receiving pan 8, and an input fluid low-pressure pump set 20.
As shown in fig. 2, the crankcase body is composed of a lower case cover 3, an intermediate case body 4, and an upper case cover 5, and the lower case cover 3, the intermediate case body 4, and the upper case cover 5 are fixed to each other by bolts.
As shown in fig. 1, 2, 3 and 4, the crank assembly 13 is disposed within a crankcase body; the crankshaft assembly 13 comprises a crankshaft 13-2, rollers 13-3, a crankshaft disc 13-7 and five lug rings 13-12, the crankshaft 13-2 is provided with an eccentric part, the crankshaft 13-2 is arranged in a crankshaft box body, two ends of the crankshaft 13-2 are respectively and rotatably supported on a box body lower cover 3 and a box body upper cover 5, a cylindrical roller bearing 13-1 is arranged between the crankshaft 13-2 and the box body lower cover 3 and the box body upper cover 5, the rollers 13-3 are sleeved on the periphery of the eccentric part of the crankshaft 13-2, and the crankshaft disc 13-7 is sleeved on the periphery of the rollers 13-3 and is movably connected with the five lug rings 13-12 and is uniformly arranged on the periphery of the crankshaft disc 13-7.
In the earrings 13-12 of the present embodiment, the lower portion of the earring is designed as a circular arc surface with the same radius as the outer diameter of the disc, so that the earring and the outer diameter of the disc are attached together. The earrings can move circularly relative to the crankshaft disc 13-7 without axial or radial displacement under the action of the inner ring and the outer retaining ring.
As shown in figure 4, an inner ring outer retainer ring 13-4, an inner ring inner retainer ring 13-5 and a first elastic retainer ring 13-6 are axially limited between a crankshaft disk 13-7 and a roller 13-3, the inner ring inner retainer ring 13-5 is of a half-shell type, the inner ring inner retainer ring 13-5 is sleeved on the periphery of the roller 13-3 and is partially inserted into an annular groove on the inner side surface of the crankshaft disk 13-7, the inner ring outer retainer ring 13-4 is of an integral type, the inner ring outer retainer ring 13-4 is sleeved on the inner ring inner retainer ring 13-5, the first elastic retainer ring 13-6 is arranged in the first retainer ring groove on the inner side surface of the crankshaft disk 13-7, and the first elastic retainer ring 13-6 limits the inner ring outer retainer ring 13-4.
As shown in fig. 4, one end of the ear ring 13-12 is tightly attached to the outer surface of the crank disc 13-7, and the ear ring 13-12 is limited to move axially and radially by a second elastic retainer ring 13-8, an outer ring inner retainer ring 13-9 and an outer ring outer retainer ring 13-10 arranged between the crank disc 13-7 and the connecting ear ring 13-12; one end of the lug ring 13-12 clinging to the outer surface of the crankshaft disc 13-7 is provided with a limit convex ring, the outer ring inner retainer ring 13-9 is of a half sleeve type, the outer ring inner retainer ring 13-9 is sleeved on the lug ring 13-12, one end of the outer ring inner retainer ring 13-9 is inserted into the annular groove on the outer side surface of the crankshaft disc 13-7, and the other end of the outer ring inner retainer ring is pulled to close the limit convex ring; an outer ring outer retainer ring 13-10 is sleeved on the outer ring inner retainer ring 13-9 and the ear ring 13-12, a second elastic retainer ring 13-8 is arranged in a second retainer ring groove on the outer side surface of the crankshaft disc 13-7, and the second elastic retainer ring 13-8 limits the outer ring outer retainer ring 13-10.
As shown in fig. 1 and 2, the lubricating oil pan 14 is fixed on the lower cover 3 of the crankcase body and communicated with the bottom of the crankshaft 13-2; the lubricating oil pan 14 is filled with lubricating oil.
As shown in fig. 1, 2 and 3, the cylinder bodies of five hydraulic cylinders 1 are all fixed with a box body intermediate body 4, the five hydraulic cylinders 1 are uniformly distributed and fixed on the box body intermediate body 4 of the crankcase body by using bolts through flanges, and the end parts of all piston rods are respectively hinged with five earrings 13-12; specifically, a joint bearing 13-11 is arranged at the end part of a piston rod 1-2 of the hydraulic cylinder 1, the end part of the piston rod 1-2 is inserted into a shifting fork head arranged on an ear ring 13-12, and a pin shaft is inserted between the shifting fork head and the joint bearing 13-11.
As shown in fig. 5, the hydraulic cylinder 1 comprises a cylinder body 1-1, a piston rod 1-2, a discharge liquid piston 1-3 and an input liquid piston 1-4, wherein the inner cavity of the cylinder body 1-1 is divided into two independent inner cavities, the piston rod 1-2 simultaneously penetrates through the two inner cavities, the discharge liquid piston 1-3 and the input liquid piston 1-4 are respectively positioned in the two inner cavities, and the discharge liquid piston 1-3 and the input liquid piston 1-4 are vertically connected with the piston rod 1-2; the inner cavity is divided into a rodless cavity 1-5 and a first isolated cavity 1-7 by the discharge liquid piston 1-3, the inner cavity is divided into a rod cavity 1-6 and a second isolated cavity 1-8 by the input liquid piston 1-4, a discharge liquid inlet and outlet 1-9 is arranged on the rodless cavity 1-5, an input liquid inlet and outlet 1-10 is arranged on the rod cavity 1-6, and cavity drain outlets 1-11 are arranged on the first isolated cavity 1-7 and the second isolated cavity 1-8.
The hydraulic cylinder structure in the embodiment mainly comprises a cylinder body, a piston rod, a discharge liquid piston, an input liquid piston, a seal and the like. An isolation cylinder body is arranged between the liquid discharging piston and the liquid inputting piston, two isolation cavities are formed between the isolation cylinder body and the piston, and the two isolation cavities can store and discharge leaked liquid when the piston is sealed to fail, so that the two liquids are prevented from being mixed.
As shown in fig. 1 and 2, the upper end and the lower end of the rotating pin 10 are both provided with a section of square shaft, and the lower end square shaft is inserted into a square groove at the top of the crankshaft 13-2; the liquid distribution plate body 12 is sleeved outside the rotary pin 10 and is connected in a rotating mode, and the liquid distribution plate body 12 is fixed on the crankcase body through bolts.
As shown in fig. 7, the liquid distribution plate 9 engages with the upper end side shaft of the rotary pin 10 and is located outside the liquid distribution plate body 12; two waist-shaped cavities, namely a high-pressure liquid cavity 9-1 and a discharge liquid cavity 9-2, are symmetrically arranged on the liquid distribution plate 9.
As shown in fig. 1 and 2, a liquid distribution plate gland 11 covers a liquid distribution plate 9, the liquid distribution plate gland 11 is fixed with a liquid distribution plate body 12, a high-pressure liquid inlet 11-1 is formed in the top of the liquid distribution plate gland 11, and when the high-pressure liquid inlet 11-1 is communicated with a high-pressure cavity 9-1, high-pressure discharge liquid of an external high-pressure discharge liquid reaction kettle 19 enters the high-pressure cavity 9-1; the liquid distribution plate gland 11 is provided with a discharged liquid outlet 11-2, and the discharged liquid can be discharged when the discharged liquid outlet 11-2 is communicated with the discharged liquid cavity 9-2. In this embodiment, the effluent outlet 11-2 may be connected to an external effluent pool port to discharge the effluent into the effluent pool.
As shown in fig. 1, 2 and 8, the liquid receiving disc 8 is positioned right below the liquid distribution disc 9 and sleeved on the rotating pin 10, and the liquid distribution disc body 12 and the liquid distribution disc gland 11 simultaneously clamp the liquid receiving disc 8; the body of the liquid receiving disc 8 is provided with five circular hole connectors 8-1, the body 12 of the liquid distribution disc is provided with five channels corresponding to the five circular hole connectors 8-1, and the five circular hole connectors 8-1 are connected with the discharge liquid inlet and outlet 1-9 of the five hydraulic cylinders 1 through pipelines and channels.
As shown in fig. 6, an input hydraulic low pressure pump group 20 is connected with input fluid inlets and outlets 1-10 of five hydraulic cylinders 1 through a pipeline 17 and a second one-way valve 16, and low pressure input fluid is filled in rod cavities 1-6 of the five hydraulic cylinders 1; meanwhile, input liquid inlets and outlets 1-10 of the five hydraulic cylinders 1 are communicated with an external input liquid reaction kettle 2 through a first one-way valve 15 arranged on a pipeline 17.
In the embodiment, the two ends of the crankshaft 13-2 are fixed, and the crankshaft 13-2 drives the liquid distribution disc 9 to rotate through the rotating pin 10. The liquid distribution plate 9 is arranged in a liquid distribution plate gland, the liquid distribution plate gland is connected with the body through bolts, and the liquid distribution plate body is connected with the upper cover of the crankcase body through bolts.
As shown in fig. 6, 7 and 8, the high-pressure discharge liquid discharged from the high-pressure discharge liquid reaction tank 19 is distributed to the rodless chambers 1 to 5 of the five hydraulic cylinders 1 via the liquid distribution plate 9. The liquid distribution plate 9 is provided with two cavities, namely a high-pressure liquid cavity 9-1 and a liquid discharge cavity 9-2, which are symmetrically arranged and do not influence each other. The high-pressure liquid cavity 9-1 and the discharge liquid cavity 9-2 on the liquid distribution plate 9 can only be connected with any one circular hole interface 8-1 in the liquid receiving plate 8 at the same position.
As shown in fig. 9 and 10, for convenience of description, only one circular hole port of the liquid receiving plate 8 is marked at the connecting position of the liquid distribution plate 9 and the liquid receiving plate 8, and is defined as a first circular hole port 8-2. 5 circular hole connectors 8-1 of the liquid receiving disc are respectively connected with 5 rodless cavities 1-5 of the hydraulic cylinder.
When a high-pressure liquid cavity 9-1 of the liquid distribution disc 9 is connected with a rodless cavity 1-5 of the hydraulic cylinder, high-pressure discharge liquid discharged from the high-pressure discharge liquid reaction kettle 19 is sent to the rodless cavity 1-5 of the hydraulic cylinder 1, the hydraulic cylinder 1 enables a piston rod 1-2 to move towards the outside of the cylinder body 1-1 under the action of the high-pressure discharge liquid, and at the moment, a rod cavity 1-6 of the hydraulic cylinder is filled with low-pressure input liquid through an input liquid low-pressure pump group 20.
According to the force balance P1 × A1 ═ P2 × A2 on two sides of the piston,
the piston area A1 without rod cavity is 0.25X pi X D1X D1, the pressure is the high pressure P1 of the discharged liquid, the piston ring area with rod cavity is A2 is 0.25X pi X (D2X D2-D X D),
the liquid pressure in the rod cavity, P2 ═ P1 × a1 ÷ a2, can be obtained.
The low-pressure input liquid in the rod cavity is changed into high-pressure input liquid under the action of the piston, and the high-pressure input liquid enters the input liquid reaction kettle 2 through the first one-way valve 15.
Meanwhile, the earrings 13-12 at the head of the piston rod drive the crankshaft 13-2 to rotate. The crankshaft 13-2 drives the rotating pin 10, the rotating pin 10 drives the liquid distribution plate 9 to rotate, after the liquid distribution plate rotates 180 degrees, the high-pressure liquid cavity 9-1 on the liquid distribution plate 9 is separated from the first round hole interface 8-2 of the liquid receiving plate, and at the moment, the first round hole interface 8-2 of the liquid receiving plate 8 is connected with the liquid discharge cavity 9-2 of the liquid distribution plate 8.
When the discharged liquid cavity 9-2 of the liquid distribution disc 9 is connected with the rodless cavity 1-5 of the hydraulic cylinder, the crankshaft 13-2 still rotates under the action of other hydraulic cylinders, the crankshaft drives the piston rod of the hydraulic cylinder to move towards the cylinder body, the discharged liquid of the rodless cavity 1-5 of the hydraulic cylinder is discharged into the pool through the liquid distribution disc 9 without pressure, and low-pressure input liquid enters the rod cavity 1-6 of the hydraulic cylinder through the second one-way valve 16. This action continues until the dispensing disc has rotated 180 degrees.
The action of the five hydraulic cylinders is connected together through a crankshaft mechanism to form a cycle, and the crankshaft drives the liquid distribution disc to rotate, so that the input and output of the discharged liquid and the input and output of the input liquid keep continuous action, and the system keeps continuous and stable input and output.
The pressure energy recovery device of the embodiment needs to be further designed and manufactured by the following technologies: 1. the influence of discharged liquid and input liquid media on materials, particularly in the chemical industry, cannot adopt conventional hydraulic sealing and conventional metal materials, needs to specially customize a special sealing element, and adopts stainless steel materials with excellent corrosion resistance to meet the requirements of working conditions. Because some media are high-temperature and high-pressure and have strong corrosivity, the temperature reaches about 170 ℃, the pressure reaches 16Mpa or higher, and the pressure is lower than a certain temperature, and a large amount of crystals can be generated in the media, so that the device is additionally provided with a heating device during specific implementation. Heating devices are known in the art.
2. In the practical application process, the influence of the sealing failure on the system is considered, and the input liquid, the discharge liquid and the lubricating oil channeling liquid are absolutely not allowed; therefore, the sensor instrument is additionally arranged at a key point on the device to ensure effective safety isolation.
The pressure energy recovery device of this embodiment has the following application prospect: at present, in industries such as petroleum, chemical engineering, seawater desalination and the like, discharged liquid of a reaction kettle is discharged through a pressure reducing valve, input liquid is pressurized and driven by a high-power motor pump set, equipment continuously operates for 24 hours, the power of the motor of the conventional equipment is 100KW, and the electricity consumption is 100KW, 24 hours, 365 days and 87.6 ten thousand (degrees) per year. If the energy recovery device is adopted, the purposes of energy conservation and consumption reduction can be realized only by connecting the discharge liquid port with the input liquid port. Meanwhile, a large amount of electric energy is saved for the company, the cost is reduced, and the benefit is indirectly created for the company.
As noted above, while the present invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limited thereto. Various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (5)
1. A novel pressure energy recovery device is characterized by comprising a crankcase body,
the crankshaft assembly (13) is arranged in the crankshaft box body; the crankshaft assembly (13) comprises a crankshaft (13-2), rollers (13-3), a crankshaft disc (13-7) and five lug rings (13-12), the crankshaft (13-2) is provided with an eccentric part, the crankshaft (13-2) is arranged in a crankshaft box body, two ends of the crankshaft (13-2) are rotatably supported on a box body plate of the crankshaft box body, the rollers (13-3) are sleeved on the periphery of the eccentric part of the crankshaft (13-2), and the crankshaft disc (13-7) is sleeved on the periphery of the rollers (13-3) and movably connected with the five lug rings (13-12) and is uniformly arranged on the periphery of the crankshaft disc (13-7);
the lubricating oil disc (14) is fixed on the crankcase body and communicated with the bottom of the crankshaft (13-2);
the cylinder bodies of all the hydraulic cylinders (1) are fixed on the outer surface of the crankcase body, and the end parts of all the piston rods are respectively hinged with five earrings (13-12); the hydraulic cylinder (1) comprises a cylinder body (1-1), a piston rod (1-2), a discharged liquid piston (1-3) and an input liquid piston (1-4), the inner cavity of the cylinder body (1-1) is divided into two independent inner cavities, the piston rod (1-2) simultaneously penetrates through the two inner cavities, the discharged liquid piston (1-3) and the input liquid piston (1-4) are respectively positioned in the two inner cavities, and the discharged liquid piston (1-3) and the input liquid piston (1-4) are vertically connected with the piston rod (1-2); the inner cavity is divided into a rodless cavity (1-5) and a first isolation cavity (1-7) by a liquid discharge piston (1-3), the inner cavity is divided into a rod cavity (1-6) and a second isolation cavity (1-8) by a liquid input piston (1-4), a liquid discharge inlet and outlet (1-9) is formed in the rodless cavity (1-5), a liquid input inlet and outlet (1-10) is formed in the rod cavity (1-6), and cavity drain openings (1-11) are formed in the first isolation cavity (1-7) and the second isolation cavity (1-8);
the upper end and the lower end of the rotating pin (10) are provided with a section of square shaft, and the square shaft at the lower end is inserted into the square groove at the top of the crankshaft (13-2);
the liquid distribution disc body (12) is sleeved outside the rotating pin (10) and is in rotating connection, and the liquid distribution disc body (12) is arranged on the crankcase body;
the liquid distribution disc (9) is clamped with the upper square shaft of the rotating pin (10) and is positioned outside the liquid distribution disc body (12); two waist-shaped cavities, namely a high-pressure liquid cavity (9-1) and a discharge liquid cavity (9-2), are symmetrically arranged on the liquid distribution plate (9);
the liquid distribution plate is covered with a liquid distribution plate gland (11), the liquid distribution plate gland (11) is fixed with a liquid distribution plate body (12), a high-pressure liquid inlet (11-1) is formed in the top of the liquid distribution plate gland (11), and when the high-pressure liquid inlet (11-1) is communicated with the high-pressure cavity (9-1), high-pressure discharge liquid of an external high-pressure discharge liquid reaction kettle (19) enters the high-pressure cavity (9-1); a discharge liquid outlet (11-2) is formed in the liquid distribution plate gland (11), and discharge liquid can be discharged when the discharge liquid outlet (11-2) is communicated with the discharge liquid cavity (9-2);
the liquid receiving disc (8) is positioned right below the liquid distribution disc (9) and sleeved on the rotating pin (10), and the liquid distribution disc body (12) and the liquid distribution disc gland (11) clamp the liquid receiving disc (8) simultaneously; five circular hole connectors (8-1) are arranged on the body of the liquid receiving disc (8), five channels are respectively formed on the liquid distribution disc body (12) corresponding to the five circular hole connectors (8-1), and the five circular hole connectors (8-1) are respectively connected with the discharge liquid inlet and outlet (1-9) of the five hydraulic cylinders (1) through pipelines and channels;
the input liquid low-pressure pump set (20) is connected with input liquid inlets and outlets (1-10) of the five hydraulic cylinders (1) through a pipeline (17) and a second one-way valve (16) and is used for filling low-pressure input liquid into rod cavities (1-6) of the five hydraulic cylinders (1); meanwhile, input liquid inlets and outlets (1-10) of the five hydraulic cylinders (1) are communicated with an external input liquid reaction kettle (2) through a first one-way valve (15) arranged on a pipeline (17).
2. The new pressure energy recovery device according to claim 1, characterized in that the crankshaft disk (13-7) and the roller (13-3) are connected by an inner and outer retainer ring (13-4), an inner ring inner retainer ring (13-5) and a first elastic retainer ring (13-6) are axially limited, the inner ring inner retainer ring (13-5) is of a half sleeve type, the inner ring inner retainer ring (13-5) is sleeved on the periphery of a roller (13-3) and is partially inserted into an annular groove on the inner side surface of a crankshaft disc (13-7), an inner ring outer retainer ring (13-4) is of an integral type, the inner ring outer retainer ring (13-4) is sleeved on the inner ring inner retainer ring (13-5), the first elastic retainer ring (13-6) is arranged in a first retainer ring groove on the inner side surface of the crankshaft disc (13-7), and the first elastic retainer ring (13-6) limits the inner ring outer retainer ring (13-4).
3. The novel pressure energy recovery device as claimed in claim 1, wherein one end of the ear ring (13-12) is tightly attached to the outer surface of the crank disk (13-7), and the ear ring (13-12) is limited to move axially and radially by the second elastic check ring (13-8), the outer ring inner check ring (13-9) and the outer ring outer check ring (13-10) arranged between the crank disk (13-7) and the connecting ear ring (13-12);
one end of the lug ring (13-12) clinging to the outer surface of the crankshaft disc (13-7) is provided with a limit convex ring, an outer ring inner check ring (13-9) is of a half sleeve type, the outer ring inner check ring (13-9) is sleeved on the lug ring (13-12), one end of the outer ring inner check ring (13-9) is inserted into an annular groove on the outer side surface of the crankshaft disc (13-7), and the other end of the outer ring inner check ring is pulled to be closed to the limit convex ring; an outer ring outer retainer ring (13-10) is sleeved on the outer ring inner retainer ring (13-9) and the ear rings (13-12), a second elastic retainer ring (13-8) is arranged in a second retainer ring groove on the outer side surface of the crankshaft disc (13-7), and the second elastic retainer ring (13-8) limits the outer ring outer retainer ring (13-10).
4. The novel pressure energy recovery device according to claim 1, characterized in that the end of the piston rod (1-2) of the hydraulic cylinder (1) is provided with a joint bearing (13-11), the end of the piston rod (1-2) is inserted into a shifting fork head arranged on the ear ring (13-12), and a pin shaft is inserted between the shifting fork head and the joint bearing (13-11).
5. The novel pressure energy recovery device according to claim 1, wherein the crankcase body is composed of a lower casing cover (3), an intermediate casing body (4) and an upper casing cover (5), and the lower casing cover (3), the intermediate casing body (4) and the upper casing cover (5) are fixed through bolts; two ends of the crankshaft (13-2) are respectively rotatably supported on the lower box cover (3) and the upper box cover (5), cylindrical roller bearings (13-1) are arranged between the crankshaft (13-2) and the lower box cover (3) and the upper box cover (5), and the cylinder body of the hydraulic cylinder (1) is fixed with the middle box body (4).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010483704.4A CN111520303B (en) | 2020-06-01 | 2020-06-01 | Pressure energy recovery device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010483704.4A CN111520303B (en) | 2020-06-01 | 2020-06-01 | Pressure energy recovery device |
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| CN111520303B CN111520303B (en) | 2024-03-22 |
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| US20160356160A1 (en) * | 2013-06-18 | 2016-12-08 | Artemis Intelligent Power Ltd. | Fluid working machine |
| CN106286183A (en) * | 2016-10-10 | 2017-01-04 | 燕山大学 | The inclined disc type axial plunger displacement pump alive that fluid energy reclaims can be realized |
| CN110778474A (en) * | 2019-11-21 | 2020-02-11 | 燕山大学 | Radial piston type fluid pump capable of recycling pressure energy in waste fluid |
| CN110953133A (en) * | 2019-11-15 | 2020-04-03 | 燕山大学 | Crankshaft connecting rod type radial piston pump capable of recycling pressure energy in waste fluid |
| CN111197558A (en) * | 2020-03-06 | 2020-05-26 | 刘艳荣 | Reciprocating plunger water injection pump |
| CN212535958U (en) * | 2020-06-01 | 2021-02-12 | 冯炳泉 | Novel pressure energy recovery device |
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2020
- 2020-06-01 CN CN202010483704.4A patent/CN111520303B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160356160A1 (en) * | 2013-06-18 | 2016-12-08 | Artemis Intelligent Power Ltd. | Fluid working machine |
| CN106286183A (en) * | 2016-10-10 | 2017-01-04 | 燕山大学 | The inclined disc type axial plunger displacement pump alive that fluid energy reclaims can be realized |
| CN110953133A (en) * | 2019-11-15 | 2020-04-03 | 燕山大学 | Crankshaft connecting rod type radial piston pump capable of recycling pressure energy in waste fluid |
| CN110778474A (en) * | 2019-11-21 | 2020-02-11 | 燕山大学 | Radial piston type fluid pump capable of recycling pressure energy in waste fluid |
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| CN111520303B (en) | 2024-03-22 |
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Effective date of registration: 20221118 Address after: 1st Floor, No. 35, Xinxing Road, Jingjiang Economic and Technological Development Zone, Taizhou, Jiangsu 225300 Applicant after: Jiangsu Tianjian Hydraulic Technology Co.,Ltd. Address before: 212001 No.11, No.19 (SHUI1), Changjiang Road, Jingkou District, Zhenjiang City, Jiangsu Province Applicant before: Feng Bingquan |
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