CN1431388A - Improved type connected hot machine-hot pump - Google Patents

Improved type connected hot machine-hot pump Download PDF

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Publication number
CN1431388A
CN1431388A CN 03114940 CN03114940A CN1431388A CN 1431388 A CN1431388 A CN 1431388A CN 03114940 CN03114940 CN 03114940 CN 03114940 A CN03114940 A CN 03114940A CN 1431388 A CN1431388 A CN 1431388A
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CN
China
Prior art keywords
centrifugal compression
housing
jet pipe
heat pump
dividing plate
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Application number
CN 03114940
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Chinese (zh)
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CN1291135C (en
Inventor
秦玉尧
张武平
傅琴
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East China University of Science and Technology
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East China University of Science and Technology
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Priority to CN 03114940 priority Critical patent/CN1291135C/en
Publication of CN1431388A publication Critical patent/CN1431388A/en
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Publication of CN1291135C publication Critical patent/CN1291135C/en
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Abstract

An improved body-connecting heat machine-heat pump is a new type of heat pump which combines the axial stema turbine and two-step serial compressed device into one machine (the first step is centrifugal compression and the second is the steam jet pump boosting) in which the steam turbine drives the centrifugal compressed device, its exhausted gas drives, the steam jet device. The improved pump can be used for increasing low-pressure steam to increase energy or forming a Lang coln-Lang coln heat pump system with the existing evaporation concentration and rectification device and desalination of sea water device to save energy in large scale.

Description

Modified model disjunctor heat engine-heat pump
Technical field
The present invention relates to a kind of heat pump, particularly a kind of linked heat engine-heat pump that drives hot machine and centrifugal function of increasing pressure that integrates.
Background technique
(publication number: CN1349039A) disclose a kind of " linked heat engine-heat pump ", this patent application organically is combined into a machine with hot machine of centrifugal turbine-type and centrifugal compressor to Chinese patent application first.But this invention has exposed following shortcoming in implementation process:
(1) rotor structure complexity is made difficulty, the requirement for dynamic balance height.
(2) high pressure steam jet pipe quantity is many, structure also quite complicated (in order to keep the evenly stressed of rotor as far as possible, being provided with more than ten jet pipe along the hoop of housing is uniform) is so the manufacture cost height, the jet pipe occupation space of is quite narrow and small simultaneously, and the layout of heat insulation layer is very difficult.
The shortcoming that on structural design, exists by Chinese patent application (CN1349039A) said " linked heat engine-heat pump ", not only brought the difficulty of implementing, and influence the performance of function, relevant for this reason branch of industry wishes that the inventor further improves, with the development that promotes " linked heat engine-heat pump " and the technological progress of related industries, satisfy the chemical industry evaporation, concentrate and rectifying engineering aspect requirements of saving energy significantly.
Summary of the invention
Purpose of the present invention is the above-mentioned defective that overcomes prior art, designed a kind of modified model disjunctor heat engine-heat pump, it not only has simple in structure, reasonable in design, low cost of manufacture, advantage that adaptive capacity is strong, and energy-saving effect is better, help the development and the popularization of " linked heat engine-heat pump ", can satisfy significantly requirements of saving energy of relevant industrial department.
Design of the present invention is such:
At first the disclosed rotor component of Chinese patent application (CN1349039A) is improved, to overcome the defective that rotor exists, be about to the independent one-tenth of turbine part one member of rotor, the centrifugal compression member of rotor independently becomes another member, the centre is provided with a dividing plate, above-mentioned two members are separately disturbed to reduce, so not only can satisfy simple in structure, easily manufactured requirement, have the advantage that force-bearing situation is simple, margin of safety is high simultaneously.
Secondly reduce the quantity of high pressure steam jet pipe significantly, one or more jet pipe (and be advisable with) only is set, and the position is moved on to broader place, be convenient to be provided with heat insulation layer like this.
The 3rd, in housing along circumferentially uniform, the exhaust steam jet pipe is set, the ejection function that makes full use of exhaust steam improves the ejector capacity of heat pump, and improved linked heat engine-heat pump efficient is improved.
The present invention also is achieved in that
At first according to above-mentioned design, the disclosed baroque rotor of Chinese patent application (CN1349039A) is improved, be designed to axial turbine impeller and centrifugal compressor impeller respectively, one dividing plate (function of relevant dividing plate will be narrated separately) is set between the two again, She Ji improvement has following technique effect like this: turbo wheel is simple in structure, design method and manufacturing technology maturation can not collided centrifugal compression impeller because the setting of dividing plate makes high pressure steam promote the postrotational exhaust steam of impeller.
Secondly, the high pressure steam jet pipe is arranged near near the housing the high pressure steam import, jet pipe quantity be one or more, but is advisable with one, makes the jet pipe configuration of heat insulation layer outward very easy like this.
The 3rd, dividing plate be provided with two functions:
(1) stops that exhaust steam collides centrifugal compression impeller, guarantee centrifugal compression impeller steady running;
(2) sealing of the outer rim inclined-plane, the left side of dividing plate is pressed on the exhaust steam jet pipe, and the exhaust steam after the guiding supercharging can only be given full play to the effect of exhaust steam through the ejection of exhaust steam jet pipe.
The 4th, be provided with the exhaust steam jet pipe, the size of its quantity view apparatus and changing, it is fixed on the inside circumference of housing in uniform way, and opposite side and dividing plate sealing compress, and guiding exhaust steam jet pipe ejection thus.
The function of exhaust steam jet pipe has two:
(1) is to make full use of the heat energy of exhaust steam, improves " heat pump " ejector capacity low pressure steam by the jet pipe jet function;
(2) make the direction of exhaust steam ejection consistent, reduce both energy losses when in annular mixing chamber, mixing with steam flow Way out from centrifugal compression blade.
In a word, by above improvement, make the structure of " heat engine-heat pump " more simple and reliable, design is more reasonable, technology is more perfect, thereby the advantage of disjunctor heat engine-heat pump and function are fully played, to quicken its industrialized application.
Description of drawings
Further illustrate content of the present invention below in conjunction with accompanying drawing (also being preferred embodiment of the present invention).
Fig. 1 is the process schematic representation of modified model disjunctor heat engine-heat pump;
Fig. 2 is the structure diagram of modified model disjunctor heat engine-heat pump;
Fig. 3 is the cross-sectional schematic of modified model disjunctor heat engine-heat pump turbine part;
Fig. 4 is the cross-sectional schematic of the centrifugal compression member of modified model disjunctor heat engine-heat pump;
Process flow diagram when Fig. 5 is used for the multiple effect evaporation engineering for modified model disjunctor heat engine-heat pump.
Wherein:
A---axial flow steam turbine device (abbreviation turbine installation) schematic diagram;
B---centrifugal compression set schematic diagram;
C---steam jet mixing supercharging device schematic diagram;
1---main shaft [it is positioned in housing (4), (15) by bearing (2)];
2---bearing;
3---motive sealing;
4---housing (left-hand component casing);
5---turbo wheel, its location is fixed on the main shaft (1), is arranged in the inner chamber of housing (4);
6---[it is arranged near the high pressure steam import (7) the high pressure steam jet pipe, and is fixed in housing (4)
Inwall on, its spout is axially aimed at the moving vane (8) on the turbo wheel (5)];
7---the high pressure steam import;
8---turbine bucket, it is fixed on the excircle of turbo wheel (5) in uniform way;
9---stiffening rib, it is fixed on the housing (4), to strengthen the rigidity of dividing plate (14);
10---the exhaust steam jet pipe, it is fixed on housing (4) right flank with being uniformly distributed along the circumference, its right side with
Dividing plate (14) is fixed together;
11---annular mixing chamber's (or claiming the ring-type mixing chamber);
12---vane diffuser, its interior empty size equates with the outer space size of annular mixing chamber;
13---spiral case chamber (abbreviation spiral case);
14---dividing plate, turbo wheel (5) and centrifugal compression impeller (16) are separated resistance by it
End exhaust steam and impact centrifugal compression impeller (16), dividing plate is a static component, and it is pacified by motive sealing
Be contained on the main shaft (1), the annular space that forms between dividing plate and the housing (4) is the exhaust steam anallobar,
Its structure makes exhaust steam guiding exhaust steam jet pipe;
15---housing (referring to the right-hand component casing);
16---centrifugal compression impeller, its location is fixed on the main shaft (1), is positioned at the inner chamber of housing (15)
In;
17---centrifugal compression moving vane, it is fixed on the centrifugal compression impeller (16) in uniform way;
18---inducer, it is positioned at centrifugal compression impeller (16) right side, is fixed on the main shaft (1), makes
Low pressure steam enters in the centrifugal compression impeller equably through inducer;
19---low pressure steam import (or claiming the waste steam import), it is positioned on the housing (15);
20---modified model disjunctor heat engine-heat pump;
21---multi-effect evaporating device.
As shown in Figure 1, in principle, modified model disjunctor heat engine-heat pump mainly comprises three parts, i.e. axial flow steam turbine device A, centrifugal compression set B, steam jet mixing supercharging device C.
As Fig. 2--shown in 4, axial flow steam turbine device (abbreviation turbine installation) A is positioned at the left side of dividing plate 14, is arranged in the housing 4, mainly has high pressure steam import 7, high pressure steam jet pipe 6, turbo wheel 5, turbine bucket 8.Centrifugal compression set B is positioned at the right side of dividing plate 14, is arranged in the housing 15, mainly has low pressure steam import 19, inducer 18, centrifugal compression impeller 16 and centrifugal compression blade 17.The rotating component of turbine installation A and centrifugal compression set B is coaxial, and turbine installation A drives centrifugal device B work.Dividing plate 14 (being one quiet), it is installed on the main shaft 1 by motive sealing, and strengthen by stiffening rib 9 and to be supported in the housing 4, its outer rim left surface and exhaust steam jet pipe 10 are fixed together, its outer rim right flank and centrifugal compression impeller 16 are axially adjacent, certain clearance is arranged between the two, can not interfere when guaranteeing 16 rotations of centrifugal compression impeller with dividing plate 14.The external profile diameter of dividing plate 14, weary gas blowout pipe 10, centrifugal compression impeller 16 and centrifugal compression moving vane 17 etc. four all equates.Turbo wheel 5 and centrifugal compression impeller 16 are separated (become respectively one independently parts) by dividing plate 14, can prevent directly impact centrifugal compression impeller 16 (influencing centrifugal compression impeller stable operation) of exhaust steam first, moreover make the exhaust steam supercharging of in the annular space that dividing plate and housing form, slowing down, and guiding exhaust steam jet pipe 10, force exhaust steam from the exhaust steam jet pipe, to spray.Steam jet mixing supercharging device C mainly is made up of exhaust steam jet pipe 10, annular mixing chamber 11, vane diffuser 12 and spiral case chamber 13 etc.The exhaust steam jet pipe 10 that is fixed on the frame 4 is one group of radially jet pipe that is uniformly distributed along the circumference, and this group jet pipe and centrifugal compression impeller 16 be axially adjacent, both flow outlet angle unanimities.The runner number of the quantity of exhaust steam jet pipe 10 and vane diffuser 12 equates that the runner direction of jet pipe is all pointed to the centre of corresponding vane diffuser 12 runners, and the flow outlet angle of exhaust steam jet pipe 10 is consistent with the air flow inlet angular direction of vane diffuser 12.This steam jet mixing supercharging device C, flow direction is identical when mixing owing to two strands of air-flows, and energy loss is little when therefore mixing.
On structure, modified model disjunctor heat engine-heat pump mainly contains housing 4 (left side casing), 15 (right side casings) and forms by the rotor of Bearing Installation in housing.Seal with dynamic seal apparatus 3 between housing 4,15 and the rotor.Housing 4 is provided with high pressure steam import 7, high pressure steam jet pipe 6 (being generally Laval type jet pipe); Housing 15 is provided with low pressure steam import 19; Also be provided with mixed vapour outlet (not shown) on this frame.Rotor mainly comprises turbo wheel 5, turbine bucket 8, centrifugal compressor wheel 16, centrifugal compression moving vane 17, main shaft 1 and inducer 18.One static dividing plate 14 is set between turbo wheel 5 and the centrifugal compression impeller 16, and dividing plate 14 is installed on the main shaft 1 by dynamic seal apparatus, and is strengthened by the stiffening rib 9 that is fixed on the housing 4.The radial outside of dividing plate 14 is an annular mixed zone 11, and the outside, annular mixed zone is a vane diffuser 12, and then is spiral case chamber 13.The mixed vapour outlet is communicated in (not shown) on the spiral case.
Further illustrate content of the present invention below in conjunction with application example:
The workflow schematic representation of (for a concrete application example of the present invention) when Fig. 5 is used for multi-effect evaporating device for modified model disjunctor heat engine-heat pump.
The working procedure of modified model disjunctor heat engine-heat pump is as follows:
The external source steam of pressure higher (for example 3.5MPa) enters high pressure steam import 7, from 6 ejections of high pressure steam jet pipe, promotes turbine bucket 8 work, drives turbo wheel 5 high speed rotating.Its air-flow still has higher speed, by housing 4, the space that turbo wheel 5 and dividing plate 14 form (promptly weary gas passage) deceleration supercharging guides to weary gas blowout pipe 10 by dividing plate 14, via weary gas blowout pipe 10 high speed (500-1000m/s) spirt ring-type mixing chambers (11).At centrifugal compression member, the turbo wheel rotation drives 16 rotations of coaxial centrifugal compression impeller, make centrifugal compression moving vane 17 work, imitate the low pressure steam that produce by low pressure steam import 19 inspirations by the evaporation equipment end through inducer 18 (its effect is the pressure loss that reduces inlet gas), it is quickened also to enter ring-type mixing chamber (11) with certain flow velocity (about 100m/s) after the supercharging through centrifugal compression moving vane 17.From the high velocity air of weary gas blowout pipe 10 with from the relatively low steam flow of the flow velocity of centrifugal compression moving vane 17, flow direction unanimity, pressure equate but the flow velocity difference, both mix in annular mixed zone 11, mixed process high speed steam flow passes to the relatively low steam flow of flow velocity with a part of kinetic energy, and reach the speed unanimity, enter vane diffuser 12 then together, mixed vapour is after this deceleration supercharging, enter further deceleration supercharging in the spiral case chamber again, the heating steam of imitating as evaporation equipment first imports first heating jacket of imitating then.Can make the energy consumption of some evaporation equipment reduce 40--60% by such improvement.
Modified model disjunctor heat engine-heat pump not only can be used for the low pressure steam supercharging and carries out the energy upgrading, also can be used to and existing evaporations concentration or rectifier unit and sea water desalinating unit composition Rankine-Rankine heat pump, reaches purpose of energy saving significantly.

Claims (4)

1, a kind of modified model disjunctor heat engine-heat pump, mainly by one group of housing (4) (15), and the rotor assembly that is installed on the housing (4) (15) by bearing (2) constitutes; On housing, be formed with a high pressure steam import (7), a low pressure steam import (19), a spiral case chamber (13), one is communicated in the mixed vapour outlet of described spiral case chamber; Between rotor and housing (4) (15), be provided with motive sealing (3); It is characterized in that: the rotor assembly of said modified model disjunctor heat engine-heat pump is respectively by independently axial flow steam turbine device and centrifugal compression set are constituted; The axial flow steam turbine device mainly comprises main shaft (1), is installed in the turbo wheel (5) on the main shaft, and is along the circumferential direction uniform, be arranged on the turbine bucket (8) on the turbo wheel periphery; Centrifugal compression set mainly comprises the centrifugal compression impeller (16) that is installed on the main shaft (1), along the circumferential direction uniformly is arranged on centrifugal compression moving vane (17) on the centrifugal compression impeller; Between turbo wheel (5) and centrifugal compression impeller (16) dividing plate (14) is set, dividing plate (14) is a static element, is provided with dynamic seal apparatus between it and the main shaft (1), and improves the rigidity of dividing plate by being fixed in stiffening rib (9) on the housing (4); One or more high pressure steam jet pipe (6) is arranged near the housing (4) of high pressure steam import (7), and its spout is axially aimed at the moving vane (8) on the turbo wheel; Be fixed on the weary gas blowout pipe (10) on described housing (4) right flank in uniform way, its right flank and dividing plate (14) are fixed together; Be fixed on the vane diffuser (12) on housing (4) and (15), this Diffuser (12) radially is positioned at the outside of ring-like mixing chamber (11); The annulus that forms between described vane diffuser (12) and the centrifugal compression impeller (16) is annular mixing chamber (11).
2, modified model disjunctor heat engine-heat pump as claimed in claim 1 is characterized in that: the external profile diameter of centrifugal compression impeller (16), centrifugal compression moving vane (17), weary gas blowout pipe (10) and dividing plate (14) four all equates.
3, modified model disjunctor heat engine-heat pump as claimed in claim 1, it is characterized in that: the exhaust steam jet pipe (10) that is fixed on the housing (4) is one group of jet pipe that is uniformly distributed along the circumference, this group jet pipe and centrifugal compression impeller (16) are axially adjacent, and the flow outlet angle of exhaust steam jet pipe (10) equates with the flow outlet angle that is fixed on the centrifugal compression moving vane (17) on the centrifugal compression impeller (16); The flow outlet angle of exhaust steam jet pipe (10) is consistent with the air flow inlet angular direction of vane diffuser (12); The runner direction of exhaust steam jet pipe (10) is pointed to the centre of corresponding vane diffuser (12) runner.
4, modified model disjunctor heat engine-heat pump as claimed in claim 1, it is characterized in that: by the dynamic seal apparatus sealing, it and frame (4), exhaust steam jet pipe (10), turbo wheel (5) and turbine bucket (8) etc. form the higher enclosed space of a pressure together between dividing plate (14) and the main shaft (1).
CN 03114940 2003-01-16 2003-01-16 Improved type connected hot machine-hot pump Expired - Fee Related CN1291135C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 03114940 CN1291135C (en) 2003-01-16 2003-01-16 Improved type connected hot machine-hot pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 03114940 CN1291135C (en) 2003-01-16 2003-01-16 Improved type connected hot machine-hot pump

Publications (2)

Publication Number Publication Date
CN1431388A true CN1431388A (en) 2003-07-23
CN1291135C CN1291135C (en) 2006-12-20

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CN 03114940 Expired - Fee Related CN1291135C (en) 2003-01-16 2003-01-16 Improved type connected hot machine-hot pump

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105019958A (en) * 2014-04-24 2015-11-04 康睿毅 Method for converting absorbed heat of outside media into power
CN105782062A (en) * 2016-05-04 2016-07-20 广州航海学院 Novel magnetic coupling pump device driven by excess pressure energy
CN110685761A (en) * 2018-11-04 2020-01-14 李华玉 Staged evaporation combined cycle power device
CN110700904A (en) * 2018-11-01 2020-01-17 李华玉 Single working medium combined cycle steam power device
CN112727762A (en) * 2021-01-11 2021-04-30 桂林航天工业学院 Sliding vane type pressure matcher

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105019958A (en) * 2014-04-24 2015-11-04 康睿毅 Method for converting absorbed heat of outside media into power
CN105782062A (en) * 2016-05-04 2016-07-20 广州航海学院 Novel magnetic coupling pump device driven by excess pressure energy
CN110700904A (en) * 2018-11-01 2020-01-17 李华玉 Single working medium combined cycle steam power device
CN110685761A (en) * 2018-11-04 2020-01-14 李华玉 Staged evaporation combined cycle power device
CN112727762A (en) * 2021-01-11 2021-04-30 桂林航天工业学院 Sliding vane type pressure matcher

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Granted publication date: 20061220

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