CN111520303B - Pressure energy recovery device - Google Patents
Pressure energy recovery device Download PDFInfo
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- CN111520303B CN111520303B CN202010483704.4A CN202010483704A CN111520303B CN 111520303 B CN111520303 B CN 111520303B CN 202010483704 A CN202010483704 A CN 202010483704A CN 111520303 B CN111520303 B CN 111520303B
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- 238000011084 recovery Methods 0.000 title claims abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 243
- 210000004907 gland Anatomy 0.000 claims abstract description 15
- 239000010687 lubricating oil Substances 0.000 claims abstract description 7
- 238000006243 chemical reaction Methods 0.000 claims description 18
- 238000002955 isolation Methods 0.000 claims description 18
- 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 12
- 230000008901 benefit Effects 0.000 abstract description 9
- 230000009467 reduction Effects 0.000 abstract description 4
- 230000007613 environmental effect 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 7
- 238000003825 pressing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000000126 substance Substances 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
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005465 channeling Effects 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
- 238000012217 deletion Methods 0.000 description 1
- 230000037430 deletion Effects 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
- 239000003921 oil Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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
-
- 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 crankcase body, a crankshaft assembly, a lubricating oil disc, five hydraulic cylinders, a rotating pin, a liquid distribution disc body, a liquid distribution disc gland, a liquid receiving disc and an input liquid low-pressure pump set, wherein the crankshaft assembly is arranged in the crankcase body; the lower end of the rotating pin is inserted into the top of the crankshaft, and the liquid distribution plate body is sleeved outside the rotating pin and is connected with the rotating pin in a rotating way; the liquid distribution disc is clamped with the upper end of the rotating pin; the liquid distribution plate gland 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 group is connected with the input liquid inlets and outlets of the five hydraulic cylinders. The device has the advantages that the device can continuously, efficiently and stably take the discharged fluid as a power source, realize the function of pressurizing the input liquid, does not need to use a motor pump set for pressurizing, achieves the purposes of energy conservation and consumption reduction, and has remarkable economic benefit and environmental benefit.
Description
Technical Field
The invention relates to a novel pressure energy recovery device.
Background
In the industries of petroleum, chemical industry, sea water desalination and the like, in a chemical reaction kettle system, fluid (input liquid) is required to be changed into high-pressure fluid to be input into a reaction kettle through a high-pressure motor pump set, and the high-pressure fluid is discharged (discharged liquid) after the high-pressure fluid passes through chemical reaction in the reaction kettle. The discharged high-pressure fluid needs to be discharged into a discharge liquid system after the pressure is reduced through a pressure reducing valve. In this process, the input fluid becomes a high pressure fluid, the pump stack consumes a large amount of electrical energy, the high pressure discharge fluid becomes a low pressure fluid, and a pressure reducing valve is required and generates a large amount of heat energy.
At present, an energy recovery device is needed, and the pressure energy of the discharged liquid discharged from the reaction kettle is recovered and provided for pressurizing the input liquid; thus, the pressure reducing valve can be reduced, and a large amount of electric energy consumed by the pump group of the input liquid motor can be reduced.
Disclosure of Invention
The invention aims to provide a novel pressure energy recovery device which can continuously, efficiently and stably take discharged fluid as a power source, realize the function of pressurizing input liquid, does not need to use a motor pump set for pressurizing, achieves the purposes of energy conservation and consumption reduction, and has remarkable economic and environmental benefits.
The technical scheme adopted is as follows:
a novel pressure energy recovery device comprises a crankcase body,
the crankshaft assembly is arranged in the crankcase body; the crankshaft assembly comprises a crankshaft, a roller, a crankshaft disc and five lugs, wherein the crankshaft is provided with an eccentric part, the crankshaft is arranged in a crankcase body, two ends of the crankshaft are rotatably supported on a box body plate of the crankcase body, the roller is sleeved on the periphery of the eccentric part of the crankshaft, and the crankshaft disc is sleeved on the periphery of the roller and movably connected with the five lugs to be uniformly 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 liquid discharge 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 liquid discharge piston and the input liquid piston are respectively positioned in the two inner cavities, and the liquid discharge piston and the liquid input piston are vertically connected with the piston rod; the cavity is divided into a rodless cavity and a first isolation cavity by the liquid discharge piston, the cavity is divided into a rod cavity and a second isolation cavity by the liquid input piston, the rodless cavity is provided with a liquid discharge inlet and a liquid discharge outlet, the rod cavity is provided with an input liquid inlet and a liquid discharge outlet, and the first isolation cavity and the second isolation cavity are provided with cavity drain openings;
the upper end and the lower end of the rotating pin are respectively provided with a section of square shaft, and the lower end shaft is inserted into a square groove at the top of the crankshaft;
the liquid distribution disc body is sleeved outside the rotating pin and is rotationally connected, 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 are respectively 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 the external high-pressure discharge liquid reaction kettle enters the high-pressure cavity; a liquid outlet is arranged on the liquid distribution plate gland, and when the liquid outlet is communicated with the liquid outlet cavity, the liquid outlet can be discharged;
the liquid receiving disc is positioned right below the liquid distribution disc, sleeved on the rotating pin, and simultaneously clamped by the liquid distribution disc body and the liquid distribution disc gland; five round hole interfaces are arranged on the body of the liquid receiving disc, five channels are respectively arranged on the liquid distribution disc body corresponding to the five round hole interfaces, and the five round hole interfaces are respectively connected with a liquid outlet and a liquid inlet of five hydraulic cylinders through pipelines and channels;
the input liquid low-pressure pump set is connected with the input liquid inlets and outlets of the five hydraulic cylinders through the pipeline and the second one-way valve, and low-pressure input liquid is filled into 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 a first one-way valve arranged on the pipeline (17).
According to the technical scheme, the crankshaft disc and the roller are axially limited through the inner ring outer retainer ring, the inner ring inner retainer ring and the first elastic retainer ring which are arranged, the inner ring inner retainer ring is in a half sleeve 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 in 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 earrings are prevented from moving up and down; the inner ring outer check ring is of an integral structure, the inner ring inner check ring is prevented from being separated, and the first elastic check ring prevents the inner ring outer check ring from moving outwards.
According to the technical scheme, one end of the lug ring is tightly attached to the outer surface of the crankshaft disc, and the axial and radial movement of the lug ring is limited between the crankshaft disc and the connecting lug ring through a second elastic retainer ring, an outer ring inner retainer ring and an outer ring outer retainer ring;
one end of the earring, which is close to the outer surface of the crankshaft disc, is provided with a limiting convex ring, the inner retainer ring of the outer ring is a half sleeve type, the inner retainer ring of the outer ring is sleeved on the earring, one end of the inner retainer ring of the outer ring is inserted into the annular groove on the outer side surface of the crankshaft disc, and the other end of the inner retainer ring of the outer ring is pulled to be closed with the limiting convex ring; the outer ring outer retainer ring is sleeved on the outer ring inner retainer ring and the earrings, the second elastic retainer ring is arranged in a second retainer ring groove on the outer side face 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 earrings are prevented from moving up and down; the outer ring outer check ring is of an integral structure, the outer ring inner check ring is prevented from being separated, and the second elastic check ring prevents the inner ring outer check ring from moving outwards.
For the optimization of the technical scheme of the invention, the end part of the piston rod of the hydraulic cylinder is provided with the joint bearing, the end part of the piston rod is inserted into a shifting fork head arranged on the earring, and a pin shaft is inserted between the shifting fork head and the joint bearing.
The crankcase body is composed of a lower case cover, a middle case body and an upper case cover, and the lower case cover, the middle case body and the upper case cover are fixed through bolts; the two ends of the crankshaft are respectively rotatably supported on the lower box cover and the upper box cover, cylindrical roller bearings are arranged between the crankshaft and the lower box cover and between the crankshaft and the upper box cover, and the cylinder body of the hydraulic cylinder is fixed with the middle box body. The assembled structure of the crankcase body aims at easy assembly.
The input liquid low-pressure pump group, the input liquid reaction kettle and the high-pressure discharge liquid reaction kettle mentioned in the technical scheme of the invention are all 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 take 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 pressurizing. The purposes of energy saving and consumption reduction are achieved, and the economic benefit and the environmental benefit are remarkable.
2. The novel pressure energy recovery device provided by the invention has the advantages that the structure of the liquid distribution disc and the structural design of the crankshaft mechanism ensure that the five hydraulic cylinders keep stable output under the action of the crankshaft linkage.
3. In order to ensure that the discharged liquid and the input liquid in the cylinder body are separated, the novel pressure energy recovery device is provided with the isolation cavity in the hydraulic cylinder structure, so that the discharged liquid and the input liquid are not mixed even if the hydraulic cylinder leaks.
Drawings
Fig. 1 is a schematic structural view of a novel pressure energy recovery device according to this embodiment.
Fig. 2 is a schematic diagram of the deletion line, check valve, input liquid low pressure pump set and input liquid reaction vessel of fig. 1.
FIG. 3 is a top view of the assembly of a hydraulic cylinder with a crankshaft assembly.
FIG. 4 is a schematic structural view of a crankshaft assembly.
Fig. 5 is a schematic structural view of the hydraulic cylinder.
Fig. 6 is a liquid flow block diagram of the present embodiment.
Fig. 7 is a schematic structural view of the liquid dispensing tray.
Fig. 8 is a schematic view of the structure of the liquid receiving tray.
Fig. 9 is a diagram of the working state of the liquid dispensing disc and the liquid receiving disc (the high-pressure liquid cavity is communicated with the first round hole interface).
Fig. 10 is a view of the working state of the dispensing disc of fig. 9 after 180 ° rotation (the discharge liquid cavity communicates with the first circular hole interface)).
Detailed Description
The technical scheme 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 contents of the present invention more comprehensible, the present invention is further described with reference to fig. 1 to 10 and the detailed description below.
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Examples:
as shown in fig. 1, the novel pressure energy recovery device in this embodiment includes a crankcase body, a crankshaft assembly 13, a lubricating oil pan 14, five hydraulic cylinders 1, a rotation pin 10, a liquid distribution pan body 12, a liquid distribution pan 9, a liquid distribution pan gland 11, a liquid receiving pan 8, and an input liquid low pressure pump group 20.
As shown in fig. 2, the crankcase body is composed of a lower case cover 3, a middle case body 4 and an upper case cover 5, and the lower case cover 3, the middle case body 4 and the upper case cover 5 are fixed by bolts.
As shown in fig. 1, 2, 3 and 4, the crankshaft assembly 13 is disposed within the crankcase; the crankshaft assembly 13 comprises a crankshaft 13-2, a roller 13-3, a crankshaft disc 13-7 and five lugs 13-12, wherein the crankshaft 13-2 is provided with an eccentric part, the crankshaft 13-2 is arranged in a crankcase body, two ends of the crankshaft 13-2 are respectively rotatably supported on the lower case cover 3 and the upper case cover 5, a cylindrical roller bearing 13-1 is arranged between the crankshaft 13-2 and the lower case cover 3 and between the crankshaft 13-2 and the upper case cover 5, the roller 13-3 is sleeved on the periphery of the eccentric part of the crankshaft 13-2, the crankshaft disc 13-7 is sleeved on the periphery of the roller 13-3 and movably connected with the five lugs 13-12, and the five lugs 13-12 are uniformly arranged on the periphery of the crankshaft disc 13-7.
The lower part of the earring 13-12 of the embodiment is designed into an 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 ear ring can do circular motion relative to the crank disk 13-7 without axial or radial displacement under the action of the outer ring and the outer retainer ring.
As shown in FIG. 4, the crankshaft disc 13-7 and the roller 13-3 are axially limited by an inner ring outer retainer ring 13-4, an inner ring inner retainer ring 13-5 and a first circlip 13-6 which are arranged, the inner ring inner retainer ring 13-5 is a half sleeve 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 disc 13-7, the inner ring outer retainer ring 13-4 is an integral type, the inner ring outer retainer ring 13-4 is sleeved on the inner ring inner retainer ring 13-5, the first circlip 13-6 is arranged in a first retainer ring groove on the inner side surface of the crankshaft disc 13-7, and the first circlip 13-6 limits the inner ring outer retainer ring 13-4.
As shown in FIG. 4, one end of the lug 13-12 is tightly attached to the outer surface of the crank disc 13-7, and the axial and radial movement of the lug 13-12 is limited between the crank disc 13-7 and the connecting lug 13-12 through a second elastic retainer ring 13-8, an outer ring inner retainer ring 13-9 and an outer ring outer retainer ring 13-10 which are arranged; one end of the earring 13-12, which is closely attached to the outer surface of the crank disc 13-7, is provided with a limiting convex ring, the outer ring inner retainer ring 13-9 is a half sleeve type, the outer ring inner retainer ring 13-9 is sleeved on the earring 13-12, one end of the outer ring inner retainer ring 13-9 is inserted into an annular groove on the outer side surface of the crank disc 13-7, and the other end of the outer ring inner retainer ring is pulled into the limiting convex ring; the outer ring outer check ring 13-10 is sleeved on the outer ring inner check ring 13-9 and the earrings 13-12, the second elastic check ring 13-8 is arranged in a second check ring groove on the outer side surface of the crank disc 13-7, and the second elastic check ring 13-8 limits the outer ring outer check ring 13-10.
As shown in fig. 1 and 2, the oil pan 14 is fixed to the lower cover 3 of the crankcase body and communicates 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 fixed on the box body intermediate body 4 of a crankcase body by bolts circumferentially 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 a hydraulic cylinder 1, the end part of the piston rod 1-2 is inserted into a shifting fork head arranged on an earring 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 of the discharge liquid piston 1-3 is divided into a rodless cavity 1-5 and a first isolation cavity 1-7, the inner cavity of the input liquid piston 1-4 is divided into a rod cavity 1-6 and a second isolation cavity 1-8, the rodless cavity 1-5 is provided with a discharge liquid inlet and outlet 1-9, the rod cavity 1-6 is provided with an input liquid inlet and outlet 1-10, and the first isolation cavity 1-7 and the second isolation cavity 1-8 are provided with cavity drain openings 1-11.
The hydraulic cylinder structure in this embodiment mainly comprises a cylinder body, a piston rod, a liquid discharge piston, a liquid input piston, a seal and the like. An isolation cylinder body is arranged between the liquid discharge piston and the liquid input 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 sealing of the piston fails, so that the two liquids are prevented from being mixed.
As shown in fig. 1 and 2, the rotating pin 10 has a square shaft at both upper and lower ends, and the lower end shaft is inserted into a square groove at the top of the crankshaft 13-2; the liquid distribution disc body 12 is sleeved outside the rotary pin 10 and is connected in a rotary mode, and the liquid distribution disc body 12 is fixed on the crankcase body through bolts.
As shown in fig. 7, the liquid dispensing disc 9 engages with the upper end shaft of the rotation pin 10 and is located outside the liquid dispensing disc body 12; two waist-shaped cavities are symmetrically arranged on the liquid distribution plate 9, namely a high-pressure liquid cavity 9-1 and a discharge liquid cavity 9-2.
As shown in fig. 1 and 2, a liquid distribution plate pressing cover 11 is covered on a liquid distribution plate 9, the liquid distribution plate pressing cover 11 is fixed with a liquid distribution plate body 12, a high-pressure liquid inlet 11-1 is formed at the top of the liquid distribution plate pressing cover 11, and when the high-pressure liquid inlet 11-1 is communicated with a high-pressure cavity 9-1, high-pressure discharged liquid of an external high-pressure discharged liquid reaction kettle 19 enters the high-pressure cavity 9-1; the liquid distribution plate gland 11 is provided with a discharge liquid outlet 11-2, and when the discharge liquid outlet 11-2 is communicated with the discharge liquid cavity 9-2, the discharge liquid can be discharged. In this embodiment, the discharge liquid outlet 11-2 may be connected to an external discharge liquid pool interface, and the discharge liquid may be discharged into the discharge liquid pool.
As shown in fig. 1, 2 and 8, the liquid receiving disc 8 is positioned right below the liquid dispensing disc 9, is sleeved on the rotating pin 10, and the liquid dispensing disc body 12 and the liquid dispensing disc pressing cover 11 simultaneously clamp the liquid receiving disc 8; five round hole interfaces 8-1 are arranged on the body of the liquid receiving disc 8, five channels are respectively arranged on the liquid distribution disc body 12 corresponding to the five round hole interfaces 8-1, and the five round hole interfaces 8-1 are respectively connected with the discharge liquid inlets and outlets 1-9 of the five hydraulic cylinders 1 through pipelines and channels.
As shown in fig. 6, the input liquid low-pressure pump group 20 is connected with the 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 low-pressure input liquid is filled into rod cavities 1-6 of the five hydraulic cylinders 1; simultaneously, the input liquid inlets and outlets 1-10 of the five hydraulic cylinders 1 are communicated with the external input liquid reaction kettle 2 through a first one-way valve 15 arranged on a pipeline 17.
In the embodiment, 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 disc 9 is arranged in a liquid distribution disc gland which is connected with the body through bolts, and the liquid distribution disc 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 rodless chambers 1-5 of five hydraulic cylinders 1 via a liquid distribution plate 9. The liquid distribution disc 9 is provided with two cavities, namely a high-pressure liquid cavity 9-1 and a discharge liquid cavity 9-2, which are symmetrically arranged and are not affected by each other. The high-pressure liquid cavity 9-1 and the discharge liquid cavity 9-2 on the liquid distribution disc 9 can only be connected with any round hole interface 8-1 in the liquid receiving disc 8 at the same position.
As shown in fig. 9 and 10, for convenience of description, only one circular hole interface of the liquid receiving tray 8 is marked at the connection position of the liquid preparing tray 9 and the liquid receiving tray 8, and is defined as a first circular hole interface 8-2. The 5 round hole interfaces 8-1 of the liquid receiving disc are respectively connected with the 5 rodless cavities 1-5 of the hydraulic cylinder.
When the high-pressure liquid cavity 9-1 of the liquid distribution disc 9 is connected with the rodless cavity 1-5 of the hydraulic cylinder, the high-pressure discharged liquid discharged by the high-pressure discharged liquid reaction kettle 19 is sent to the rodless cavity 1-5 of the hydraulic cylinder 1, the hydraulic cylinder 1 enables the piston rod 1-2 to move outwards of the cylinder body 1-1 under the action of the high-pressure discharged liquid, and at the moment, the rod cavity 1-6 of the hydraulic cylinder is filled with low-pressure input liquid through the input liquid low-pressure pump group 20.
According to the piston both-side force balance p1×a1=p2×a2,
the piston area of the rodless cavity A1=0.25xpi x D1 x D1, the pressure is the high pressure P1 of the discharged liquid, the piston ring area of the rod cavity is A2=0.25xpi x (D2 x D2-D x D),
the liquid pressure in the rod chamber p2=p1×a1++a2 is 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 piston rod head earrings 13-12 drive the crankshaft 13-2 to rotate. The crankshaft 13-2 drives the rotary pin 10, the rotary pin 10 drives the liquid distribution disc 9 to rotate, after the liquid distribution disc 9 rotates 180 degrees, the high-pressure liquid cavity 9-1 on the liquid distribution disc 9 is separated from the first round hole interface 8-2 of the liquid receiving disc, and at the moment, the first round hole interface 8-2 of the liquid receiving disc 8 is connected with the liquid discharging cavity 9-2 of the liquid distribution disc 8.
When the discharge 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 inwards, the discharge liquid of the rodless cavity 1-5 of the hydraulic cylinder is discharged into the tank without pressure through the liquid distribution disc 9, 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 tray rotates 180 degrees.
The five hydraulic cylinders are connected together through the crankshaft mechanism to form a cycle, and the crankshaft drives the liquid distribution disc to rotate, so that the input and output of discharged liquid and the input and output of input liquid keep continuous action, and the system keeps continuous and stable input and output.
The pressure energy recovery device of this embodiment is designed and manufactured by further designing the following technologies: 1. the influence of discharged liquid and input liquid medium on materials, especially in the chemical industry, conventional hydraulic sealing and conventional metal materials cannot be adopted, special sealing elements are required to be customized, and stainless steel materials with very good corrosion resistance are adopted to meet the working condition requirements. Because of the high temperature and high pressure of some mediums, the corrosiveness is strong, the temperature reaches about 170 ℃, the pressure reaches 16Mpa or higher, and a large amount of crystals can be generated in the mediums below a certain temperature, so that the device is additionally provided with a heating device when being implemented. Heating devices are known in the art.
2. In the practical application process, the device considers the influence of seal failure on a system, and absolutely does not allow liquid input, liquid discharge and lubricating oil channeling; therefore, a 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 a use prospect: at present, in industries such as petroleum, chemical industry, sea water desalination and the like, the effluent of a reaction kettle is discharged through a pressure reducing valve, the input liquid is pressurized and driven by a high-power motor pump set, the equipment continuously runs for 24 hours without interruption, the equipment is calculated according to the motor power of 100KW of conventional equipment, and the electricity consumption is 100KW per year, 24 hours, 365 days and 87.6 ten thousand (degrees). If the energy recovery device is adopted, the purpose of energy saving and consumption reduction can be realized by only 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 benefits are indirectly created for the company.
As described above, although the present invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limiting the invention itself. Various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (5)
1. A pressure energy recovery device is characterized by comprising a crankcase body,
a crankshaft assembly (13) disposed within the crankcase; the crankshaft assembly (13) comprises a crankshaft (13-2), rollers (13-3), a crankshaft disc (13-7) and five earrings (13-12), wherein the crankshaft (13-2) is provided with an eccentric part, the crankshaft (13-2) is arranged in a crankcase body, two ends of the crankshaft (13-2) are rotatably supported on a box body plate of the crankcase 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 earrings (13-12) to be uniformly arranged on the periphery of the crankshaft disc (13-7);
a lubricating oil pan (14) 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 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 of the discharge liquid piston (1-3) is divided into a rodless cavity (1-5) and a first isolation cavity (1-7), the inner cavity of the input liquid piston (1-4) is divided into a rod cavity (1-6) and a second isolation cavity (1-8), the rodless cavity (1-5) is provided with a discharge liquid inlet and outlet (1-9), the rod cavity (1-6) is provided with an input liquid inlet and outlet (1-10), and the first isolation cavity (1-7) and the second isolation cavity (1-8) are provided with cavity drain openings (1-11);
the upper end and the lower end of the rotating pin (10) are respectively provided with a section of square shaft, and the lower end shaft is inserted into a square groove at the top of the crankshaft (13-2);
the liquid distribution disc body (12) is sleeved outside the rotary pin (10) and is connected in a rotary mode, and the liquid distribution disc body (12) is arranged on the crankcase body;
a liquid distribution plate (9) which is clamped with the upper square shaft of the rotating pin (10) and is positioned outside the liquid distribution plate body (12); two waist-shaped cavities are symmetrically arranged on the liquid distribution disc (9), namely a high-pressure liquid cavity (9-1) and a liquid discharge cavity (9-2);
a liquid distribution plate gland (11) covered on the liquid distribution plate (9), wherein the liquid distribution plate gland (11) is fixed with the 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 liquid cavity (9-1), high-pressure discharged liquid of an external high-pressure discharged liquid reaction kettle (19) enters the high-pressure liquid cavity (9-1); a liquid outlet (11-2) is arranged on the liquid distribution plate gland (11), and when the liquid outlet (11-2) is communicated with the liquid outlet cavity (9-2), the liquid can be discharged;
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); five round hole interfaces (8-1) are arranged on the body of the liquid receiving disc (8), five channels are respectively arranged on the liquid distribution disc body (12) corresponding to the five round hole interfaces (8-1), and the five round hole interfaces (8-1) are respectively connected with the liquid outlet and inlet (1-9) of the five hydraulic cylinders (1) through pipelines and channels;
the input liquid low-pressure pump set (20) is connected with the 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 low-pressure input liquid is filled into rod cavities (1-6) of the five hydraulic cylinders (1); meanwhile, the 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 pressure energy recovery device according to claim 1, characterized in that an inner ring outer retainer ring (13-4), an inner ring inner retainer ring (13-5) and a first circlip (13-6) are arranged between the crank disk (13-7) and the roller (13-3) to limit the positions axially, the inner ring inner retainer ring (13-5) is a huff sleeve 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 crank disk (13-7), the inner ring outer retainer ring (13-4) is integral, the inner ring outer retainer ring (13-4) is sleeved on the inner ring inner retainer ring (13-5), the first circlip (13-6) is arranged in a first retainer ring groove on the inner side surface of the crank disk (13-7), and the first circlip (13-6) limits the inner ring outer retainer ring (13-4).
3. The pressure energy recovery device according to claim 1, wherein one end of the earring (13-12) is closely attached to the outer surface of the crank disc (13-7), and the axial and radial movement of the earring (13-12) is restricted by the second circlip (13-8), the outer ring inner retainer (13-9) and the outer ring outer retainer (13-10) provided between the crank disc (13-7) and the connecting earring (13-12);
one end of the earring (13-12) which is closely attached to the outer surface of the crank disc (13-7) is provided with a limiting convex ring, the inner retainer ring (13-9) of the outer ring is a half sleeve type, the inner retainer ring (13-9) of the outer ring is sleeved on the earring (13-12), one end of the inner retainer ring (13-9) of the outer ring is inserted into an annular groove on the outer side surface of the crank disc (13-7), and the other end of the inner retainer ring is pulled into the limiting convex ring; the outer ring outer retainer ring (13-10) is sleeved on the outer ring inner retainer ring (13-9) and the earrings (13-12), the second elastic retainer ring (13-8) is arranged in a second retainer ring groove on the outer side face 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 pressure energy recovery device according to claim 1, wherein a knuckle bearing (13-11) is arranged at the end of a piston rod (1-2) of the hydraulic cylinder (1), the end of the piston rod (1-2) is inserted into a shifting fork head arranged on an earring (13-12), and a pin shaft is inserted between the shifting fork head and the knuckle bearing (13-11).
5. The pressure energy recovery device according to claim 1, wherein the crankcase body is composed of a lower case cover (3), a middle case body (4) and an upper case cover (5), and the lower case cover (3), the middle case body (4) and the upper case cover (5) are fixed by bolts; the two ends of the crankshaft (13-2) are respectively rotatably supported on the lower box cover (3) and the upper box cover (5), a cylindrical roller bearing (13-1) is arranged between the crankshaft (13-2) and the lower box cover (3) and between the crankshaft 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 |
|---|---|---|---|
| CN202010483704.4A CN111520303B (en) | 2020-06-01 | 2020-06-01 | Pressure energy recovery device |
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| CN111520303B true CN111520303B (en) | 2024-03-22 |
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| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105209755B (en) * | 2013-06-18 | 2017-09-08 | 丹佛斯动力系统有限责任两合公司 | Fluid-working machine |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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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| CN111520303A (en) | 2020-08-11 |
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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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