CN108547666A - A method of making full use of low-pressure steam sensible heat latent heat - Google Patents
A method of making full use of low-pressure steam sensible heat latent heat Download PDFInfo
- Publication number
- CN108547666A CN108547666A CN201810228202.XA CN201810228202A CN108547666A CN 108547666 A CN108547666 A CN 108547666A CN 201810228202 A CN201810228202 A CN 201810228202A CN 108547666 A CN108547666 A CN 108547666A
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- China
- Prior art keywords
- rotor
- latent heat
- full use
- low
- making full
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C1/00—Rotary-piston machines or engines
- F01C1/22—Rotary-piston machines or engines of internal-axis type with equidirectional movement of co-operating members at the points of engagement, or with one of the co-operating members being stationary, the inner member having more teeth or tooth- equivalents than the outer member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/08—Rotary pistons
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/10—Outer members for co-operation with rotary pistons; Casings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Separation By Low-Temperature Treatments (AREA)
Abstract
The invention discloses a kind of methods making full use of low-pressure steam sensible heat latent heat, and the pressure difference of 0.5mpa is down to using steam 1.0mpa, are done work and are generated electricity by birotor expanding machine, are power supply for electrical equipment, latent heat of the steam is for heating regeneration tower bottom reboiler.Birotor expanding machine is generated electricity and is combined with solvent regeneration tower heating procedure by the present invention, realizes that steam source sensible heat power generating is personal, latent heat maintains the purpose of column bottom temperature.
Description
Technical field
The present invention relates to a kind of methods of heat source regeneration more particularly to one kind making full use of low-pressure steam sensible heat latent heat
Method.
Background technology
In petroleum chemical enterprise, solvent reclamation device regenerator raffinates oil and restructures the fractionating column of device, and there are reboiler heat for bottom of tower
The case where source is underused.By taking solvent reclamation device regenerator as an example, part refinery is using 1.0mpa low-pressure steams as bottom of tower
Reboiler heat source（The saturation temperature of 1.0mpa steam is about 180 DEG C）, and operating instruction requires regeneration column bottom temperature control 121
DEG C, it can float up and down 2 DEG C, using 0.5mpa（The saturation temperature of 0.5mpa steam is about 150 DEG C）It is anti-that steam can meet regenerator
Temperature requirement is answered, therefore, part refinery can select to reduce steam pressure using pressure reducing valve, thus cause the waste of the energy.
Invention content
In order to solve the deficiencies in the prior art, the purpose of the present invention is to provide one kind making full use of low-pressure steam
The method of sensible heat latent heat.
In order to achieve the above objectives, the technology used in the present invention means are：One kind making full use of low-pressure steam sensible heat latent heat
Method, the pressure difference of 0.5mpa is down to using steam 1.0mpa, by birotor expanding machine do work generate electricity, for electrical equipment supply
Electricity, latent heat of the steam is for heating regeneration tower bottom reboiler.
Further, the birotor expanding machine includes at least expanding machine shell, and expansion is arranged in expanding machine shell
Chamber installs outer rotor in expansion chamber, and internal rotor is installed in outer rotor, is arranged several through-holes on outer rotor, outer rotor with
Cavity is set between internal rotor, and cavity is connected to by through-hole with expansion chamber；Inlet and outlet is set on expanding machine shell, import and
Outlet is connected to expansion chamber.
Further, it is circle outside the cross section of the outer rotor, inside is the hollow cavity with multiple imploded arcs,
The through-hole is located on the outer rotor body corresponding to the arc top of imploded arcs, and the internal rotor has multiple raised arcs.
Further, the axial line of the inner rotor shaft and the center of circle of outer rotor be not coaxial, and the rotating speed of outer rotor with
The rotating speed of internal rotor is inconsistent.
Further, the expanding machine shell is hollow cylinder, in two sections of inner wall between inlet and outlet
One section of limit arc body is respectively set on arc, expansion chamber is divided into snout cavity and outlet plenum by limiting watch box and outer rotor.
Further, the internal rotor cascades by inner rotor shaft or is used as output shaft.
Further, the pressure difference that 0.5mpa is down to using steam 1.0mpa is done work by birotor expanding machine and is sent out
Electricity refers to：When high steam is entered from expander inlet in expansion chamber, promotion outer rotor and internal rotor rotate, in the mistake of rotation
Cheng Zhong, the cavity volume formed between the raised arc and the imploded arcs of outer rotor on internal rotor gradually increase, are transitioned into and export
Chamber couples, and realizes that expansion is depressured, and in expansion process, high steam generates pressure and externally exports machine by the axis being connected with internal rotor
Tool can do work power generation.
Further, the expansion ratio in the expansion decompression is equal to the volumetric ratio of snout cavity and outlet plenum.
Further, after the birotor expanding machine exchanges inlet and outlet, rotor, which reversely rotates, is used as compressor
It uses, rotor-type expander is connect by internal rotor with rotor-type compressor and realizes coaxial linkage, and composition expansion compresses coaxial one
Body machine.
The beneficial effects of the invention are as follows：Birotor expanding machine is generated electricity and is combined with solvent regeneration tower heating procedure, is realized
Steam source sensible heat power generating is personal, and latent heat maintains the purpose of column bottom temperature.
Description of the drawings
The invention will be further elaborated with reference to the accompanying drawings and examples.
Fig. 1 is schematic structural view of the invention.
In figure：1, expanding machine shell, 2, outer rotor, 3, internal rotor, 4, expansion chamber, 5, import, 6, outlet, 7, hollow cavity,
8, imploded arcs, 9, through-hole, 10, snout cavity, 11, outlet plenum, 12, raised arc, 13, cavity.
Specific implementation mode
Embodiment 1
A method of low-pressure steam sensible heat latent heat is made full use of, the pressure difference of 0.5mpa is down to using steam 1.0mpa, by double
The acting power generation of rotor expansion machine is power supply for electrical equipment, and latent heat of the steam is for heating regeneration tower bottom reboiler.Work as high steam
It is entered in expansion chamber from expander inlet, pushes outer rotor and internal rotor rotation, it is convex on internal rotor during rotation
The cavity volume formed between the starting the arc and the imploded arcs of outer rotor gradually increases, and is transitioned into and is coupled with outlet plenum, realizes expansion drop
It presses, in expansion process, high steam generates pressure and passes through the external output mechanical energy acting power generation of the axis being connected with internal rotor.
As shown in Figure 1, the birotor expanding machine, includes at least expanding machine shell 1, expansion is set in expanding machine shell
Chamber 4 installs outer rotor 2 in expansion chamber, and internal rotor 3 is installed in outer rotor 2, several through-holes 9 are arranged on outer rotor 2, outside
Cavity 13 is set between rotor 2 and internal rotor 3, and cavity 13 is connected to by through-hole 9 with expansion chamber 4；Be arranged on expanding machine shell 1 into
Mouth 5 and outlet 6, import 5 and outlet 6 are connected to expansion chamber 4.
It is circle outside the cross section of the outer rotor 2, inside is the hollow cavity 7 with multiple imploded arcs 8, the through-hole
9 are located on the outer rotor body corresponding to the arc top of imploded arcs 8, and the internal rotor 3 has multiple raised arcs 12.
The center of circle of the axial line and outer rotor 2 of 3 axis of the internal rotor is not coaxial, and turn of the rotating speed of outer rotor and internal rotor
Speed is inconsistent.
The expanding machine shell 1 is hollow cylinder, is set respectively on two sections of arcs between inlet and outlet in inner wall
One section of limit arc body is set, expansion chamber is divided into snout cavity 10 and outlet plenum 11 by limiting watch box and outer rotor.
The internal rotor 3 cascades by inner rotor shaft or is used as output shaft.
Expansion ratio in the expansion decompression is equal to the volumetric ratio of snout cavity and outlet plenum.
Embodiment 2
After the birotor expanding machine exchanges inlet and outlet, rotor reverse rotation is used as compressor, rotator type expansion
Machine is connect by internal rotor with rotor-type compressor and realizes coaxial linkage, composition expansion, compression coaxial all-in-one machine.
Parts of the present invention are few and simple in structure, and body parts machining is at low cost；Rotary part is indeformable, rotary part
Between and rotary part and expansion chamber between characteristics of compact layout, internal leakage is small, closer to naturally expansion；Rotary part rotating speed is changeable
（It is per minute hundreds of, thousands of and up to ten thousand turns can）, energy regenerating loses small；Modularized design, can axially enlarged allowance for expansion,
And can multi-stage coaxial connection, expansion ratio is adjustable, and variable working condition ability is strong, and rotary part rotating speed is moderate, and bearing is at low cost, not rapid wear
It is bad；The external output mechanical energy of body is not necessarily to associated gear case, and energy recovery efficiency is high, and unit corollary system is few and simple, can show
Writing reduces unit cost；Body few easy workout part, unit corollary system is simple, and O＆M cost is low；High-power product in can producing,
Earning rate is improved, the operating mode of all pressure and temperatures is suitable for, adapts to the pressure and flow of fluctuation；Suitable for heterogeneous fluid medium
（Air-liquid, gas-liquid）, expansion ratio is big and adjustable；Compressor, composition expansion compression coaxial all-in-one machine can be reversely used as.Due to rotating speed
Range is wide, and it can be directly load design externally to export mechanical work, be such as designed to the generator of 1500rpm or 3000rpm.
One of ordinary skill in the art will appreciate that：The above embodiments are only used to illustrate the technical solution of the present invention., and
It is non-that it is limited；Although present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art
It should be understood that：Its still can with technical scheme described in the above embodiments is modified, either to which part or
All technical features carries out equivalent replacement；And these modifications or replacements, it does not separate the essence of the corresponding technical solution this hair
The range of bright each embodiment technical solution.
Claims (9)
1. a kind of method making full use of low-pressure steam sensible heat latent heat, it is characterised in that：It is down to 0.5mpa using steam 1.0mpa
Pressure difference, done work and generated electricity by birotor expanding machine, be power supply for electrical equipment, latent heat of the steam is boiled again for heating regenerator bottom
Device.
2. the method according to claim 1 for making full use of low-pressure steam sensible heat latent heat, it is characterised in that：The birotor
Expanding machine includes at least expanding machine shell, expansion chamber is arranged in expanding machine shell, outer rotor is installed in expansion chamber, outside
Internal rotor is installed in rotor, several through-holes are set on outer rotor, cavity is set between outer rotor and internal rotor, cavity passes through logical
Hole is connected to expansion chamber；Inlet and outlet is set on expanding machine shell, and inlet and outlet is connected to expansion chamber.
3. the method according to claim 2 for making full use of low-pressure steam sensible heat latent heat, it is characterised in that：The outer rotor
Cross section outside for circle, inside be the hollow cavity with multiple imploded arcs, the through-hole be located at imploded arcs arc top institute
On corresponding outer rotor body, the internal rotor has multiple raised arcs.
4. the method according to claim 3 for making full use of low-pressure steam sensible heat latent heat, it is characterised in that：The internal rotor
The axial line of axis and the center of circle of outer rotor be not coaxial, and the rotating speed of outer rotor and the rotating speed of internal rotor are inconsistent.
5. the method according to claim 2 for making full use of low-pressure steam sensible heat latent heat, it is characterised in that：The expanding machine
Shell is hollow cylinder, and one section of limit arc body is respectively set on two sections of arcs between inlet and outlet in inner wall, passes through
Expansion chamber is divided into snout cavity and outlet plenum by limit watch box and outer rotor.
6. the method according to claim 5 for making full use of low-pressure steam sensible heat latent heat, it is characterised in that：The internal rotor
Output shaft is cascaded or is used as by inner rotor shaft.
7. the method according to claim 1 for making full use of low-pressure steam sensible heat latent heat, it is characterised in that：It is described to utilize steaming
Vapour 1.0mpa is down to the pressure difference of 0.5mpa, refers to by the acting power generation of birotor expanding machine：When high steam is from expander inlet
It enters in expansion chamber, pushes outer rotor and internal rotor rotation, during rotation, the raised arc on internal rotor and outer rotor
Imploded arcs between the cavity volume that is formed gradually increase, be transitioned into and outlet plenum coupling, realize expansion decompression, expansion process
In, high steam generates pressure and passes through the external output mechanical energy acting power generation of the axis being connected with internal rotor.
8. the method according to claim 7 for making full use of low-pressure steam sensible heat latent heat, it is characterised in that：The expansion drop
Expansion ratio in pressure is equal to the volumetric ratio of snout cavity and outlet plenum.
9. the method according to claim 2 for making full use of low-pressure steam sensible heat latent heat, it is characterised in that：The birotor
After expanding machine exchanges inlet and outlet, rotor reverse rotation is used as compressor, and rotor-type expander is compressed with rotator type
Machine is connected by internal rotor realizes coaxial linkage, composition expansion, compression coaxial all-in-one machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810228202.XA CN108547666A (en) | 2018-03-16 | 2018-03-16 | A method of making full use of low-pressure steam sensible heat latent heat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810228202.XA CN108547666A (en) | 2018-03-16 | 2018-03-16 | A method of making full use of low-pressure steam sensible heat latent heat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108547666A true CN108547666A (en) | 2018-09-18 |
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ID=63516734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810228202.XA Pending CN108547666A (en) | 2018-03-16 | 2018-03-16 | A method of making full use of low-pressure steam sensible heat latent heat |
Country Status (1)
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1450251A (en) * | 2002-04-08 | 2003-10-22 | 李汉玉 | Rotary piston type engine mechanism and device |
| CN104533531A (en) * | 2015-01-06 | 2015-04-22 | 无锡玄同科技有限公司 | System and device for recovering pressure energy of natural gas pipeline as well as rotor expander |
| CN104707354A (en) * | 2015-04-02 | 2015-06-17 | 山东开泰石化股份有限公司 | Methylbenzene separation system in acrylic acid device and method |
| CN105801412A (en) * | 2014-12-31 | 2016-07-27 | 湖南中创化工股份有限公司 | Method and system for recycling sec-butyl acetate in sec-butyl acetate preparation by-product heavy hydrocarbons having carbon number of 12 or more |
-
2018
- 2018-03-16 CN CN201810228202.XA patent/CN108547666A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1450251A (en) * | 2002-04-08 | 2003-10-22 | 李汉玉 | Rotary piston type engine mechanism and device |
| CN105801412A (en) * | 2014-12-31 | 2016-07-27 | 湖南中创化工股份有限公司 | Method and system for recycling sec-butyl acetate in sec-butyl acetate preparation by-product heavy hydrocarbons having carbon number of 12 or more |
| CN104533531A (en) * | 2015-01-06 | 2015-04-22 | 无锡玄同科技有限公司 | System and device for recovering pressure energy of natural gas pipeline as well as rotor expander |
| CN104707354A (en) * | 2015-04-02 | 2015-06-17 | 山东开泰石化股份有限公司 | Methylbenzene separation system in acrylic acid device and method |
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Application publication date: 20180918 |