CN204943952U - Energy-conservation refrigeration unit and compression-expansion module - Google Patents

Energy-conservation refrigeration unit and compression-expansion module Download PDF

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CN204943952U
CN204943952U CN201520635956.9U CN201520635956U CN204943952U CN 204943952 U CN204943952 U CN 204943952U CN 201520635956 U CN201520635956 U CN 201520635956U CN 204943952 U CN204943952 U CN 204943952U
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compressor
expander
turbo
compression
refrigeration unit
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王志强
王崎文
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Wisdom Energy Technology Co Ltd
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Wisdom Energy Technology Co Ltd
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Abstract

An energy-conservation refrigeration unit, comprises compressor, condenser, fluid reservoir, expansion mechanism, evaporimeter and drives the motor of described compressor.Working medium is at described compressor, condenser, fluid reservoir, circulate between expansion mechanism and evaporimeter.Described expansion mechanism is turbo-expander, and described working medium is expansion work in described turbo-expander, drives the part of the power needed for described compressor to derive from the expansion work of described turbo-expander absorption.

Description

Energy-conservation refrigeration unit and compression-expansion module
Technical field
The present invention relates to refrigeration unit, particularly relate to a kind of have compression-expansion module can be effectively energy-conservation refrigeration unit.
Background technology
Along with the sharp increase that world's conventional energy resource consumes, make people more and more pay attention to the saving of the energy, day enters the popular feeling to the idea of energy-saving and emission-reduction.Refrigeration unit widely uses in industrial production and daily life, such as, process cooling in dye chemical industry industry, in pharmaceutical industry, pharmaceutical production process cooling refrigeration, as the large-scale construction engineerings such as reservoir, mine, railway, airport all need to use refrigeration unit in the concrete process of quick cooling in large-scale concrete engineering, again such as, the power consumption of large-scale its refrigeration unit of central air conditioner system is also very large.Above-mentioned refrigerating plant power consumption is large, and efficiency is low, based on the phenomenon of nowadays energy shortage, need badly a kind of novel can be effectively energy-conservation refrigeration unit.
Summary of the invention
In view of this, propose the compression-expansion module that a kind of compressing mechanism and expansion mechanism make a module herein, make it have energy-conservation effect.
A kind of energy-conservation refrigeration unit is also proposed herein.
There is provided a kind of compression-expansion module herein, for refrigeration unit, described refrigeration unit comprises condenser, fluid reservoir, evaporimeter.Described compression-expansion module comprises compressor, motor and turbo-expander.Compressor in order to compression from described evaporimeter working medium and send the working medium of compression to described condenser.Motor is connected to drive described compressor with described compressor.Turbo-expander in order to receive from described fluid reservoir working medium and by described turbo-expander expand after working medium send described evaporimeter to.
In one embodiment, described compression-expansion module comprises rotating shaft, described compressor and described rotating shaft be fixedly connected with coaxially with described rotating shaft coaxial rotation, described turbine and described rotating shaft be fixedly connected with coaxially with described rotating shaft coaxial rotation.
In one embodiment, described motor comprises p-m rotor and the stator around described p-m rotor, and described p-m rotor comprises the permanent magnet being fixed on described rotating shaft periphery, and described motor is between described compressor and described turbine.
In one embodiment, described compression-expansion module also comprises generator, and described generator is connected with described turbine and generates electricity to be driven by described turbine.
A kind of energy-conservation refrigeration unit is separately provided herein, comprises compressor, condenser, fluid reservoir, expansion mechanism, evaporimeter and drive the motor of described compressor.Working medium is at described compressor, condenser, fluid reservoir, circulate between expansion mechanism and evaporimeter.Described expansion mechanism is turbo-expander, drives the part of the power needed for described compressor to derive from the rotation of described turbo-expander.
In one embodiment, described compressor and turbo-expander are fixed in same rotating shaft.
In one embodiment, described motor comprises p-m rotor and the stator around described p-m rotor, and described p-m rotor comprises the permanent magnet being fixed on described rotating shaft periphery.
In one embodiment, described refrigeration unit also comprises a generator, and described generator is connected with described turbo-expander and generates electricity to be driven by described turbo-expander, and the electric power that described generator sends is supplied to described motor at least partially.
In one embodiment, the parts of the compression-expansion module that described rotating shaft, compressor, turbo-expander and motor are as a whole, described condenser, fluid reservoir and evaporimeter are connected to described compression-expansion module by pipeline.
In one embodiment, described compressor is two-stage centrifugal compressor.
In sum, the invention provides a kind of energy-conservation refrigeration unit, its expansion mechanism adopts turbo-expander, and working medium is expansion work in turbo-expander, and wherein the power resources of compressor are the expansion work deriving from turbo-expander absorption at least partially.So, the electric energy required for motor driving described compressor can be reduced, thus reach energy-saving effect.In addition, described refrigeration unit has a compression-expansion module, and described compression-expansion module adopts to be assembled compressor, turbine and motor moduleization, and the in-site installation facilitating refrigeration unit is arranged.
Accompanying drawing explanation
Fig. 1 is the rough schematic view of an embodiment of refrigeration unit.
Fig. 2 is the rough schematic view of another embodiment of refrigeration unit.
Detailed description of the invention
Before describing the embodiments in more detail, it should be understood that and the invention is not restricted to detailed construction in the application hereafter or described in accompanying drawing or arrangement of elements.The present invention can be the embodiment that alternate manner realizes.And, should be appreciated that wording used herein and term are only used as to describe purposes, should being construed as limiting property not explain.Similar wording meant and comprised item listed thereafter, its equivalent and other additional things " comprising " used herein, " comprising ", " having " etc.Particularly, when describing " certain element ", the quantity that the present invention does not limit this element is one, also can comprise multiple.
Fig. 1 is the rough schematic view of an embodiment of refrigeration unit.As shown in Figure 1, described refrigeration unit comprises compressor 10, condenser 12, fluid reservoir 14, expansion mechanism 16, evaporimeter 18 and drives the motor 22 of compressor 10.Compressor 10 and expansion mechanism 16 are fixed in same rotating shaft 20, wherein compressor 10 comprises input port and output port, condenser 12 is connected with the output port of compressor 10 to make the working medium after compressor 10 compresses enter condenser 12, and the input port that evaporimeter 18 is connected to compressor 10 carries out next circulation to make the working medium through evaporator 18 reclaim in compressor 10.The other end of evaporimeter 18 is connected with expansion mechanism 16, and fluid reservoir 14 is connected between condenser 12 and expansion mechanism 16.
Expansion mechanism 16 is a turbo-expander 16.When refrigeration unit is run, working medium is when turbo-expander 16, and expansion work on turbine blade, then enters the heat that evaporimeter 18 absorbs in room air and evaporate, thus reduce indoor temperature.Meanwhile, turbo-expander 16 absorbs the expansion work of working medium and rotates, and the turbine 16 of rotation drives compressor 10 to rotate by rotating shaft 20.Therefore, the power part driving compressor 10 to rotate comes from motor 22, and some comes from the expansion work that turbo-expander 16 absorbs, and the namely rotational kinetic energy of turbo-expander 16, therefore saves the electric energy required for motor 22.
In the present embodiment, motor 22 is arranged between compressor 10 and expansion mechanism 16.Motor 22 comprises p-m rotor 26 and the stator 28 around p-m rotor 26, and wherein p-m rotor 26 comprises the permanent magnet being fixed on rotating shaft 20 periphery.
In one embodiment, above-mentioned rotating shaft 20 and in rotating shaft 20 coaxial mounted compressor 10, turbo-expander 16 and motor 22 be assembled into an overall compression-expansion module, and condenser 12, fluid reservoir 14 and evaporimeter 18 are connected to this compression-expansion module by pipeline.Wherein, compressor 10 and rotating shaft 20 be fixedly connected with coaxially with rotating shaft 20 coaxial rotation, compressor 10 in order to compression come flash-pot 18 working medium and send the working medium of compression to condenser 12; Turbo-expander 16 and rotating shaft 20 be fixedly connected with coaxially with rotating shaft 20 coaxial rotation, turbo-expander 16 in order to receive from fluid reservoir 14 working medium and by expand after working medium send evaporimeter 18 to; The p-m rotor of motor 22 is fixedly connected with rotating shaft 20 and rotates with drive shaft 20.
In the above-described embodiments, because rotating shaft 20, compressor 10, turbo-expander 16 and motor 22 form an overall compression-expansion module, therefore the installation of refrigeration unit and site layout project will become and be more prone to.Except rotating shaft 20, compressor 10, turbo-expander 16 and motor 22, this compression-expansion module can also comprise other element as required.
In the present embodiment, compressor 10 adopts two-stage centrifugal compressor, and certainly, the present invention does not limit kind and the model of compressor 10, compressor 10 also can adopt other kinds and model, as long as compressor used 10 is suitable for compression-expansion module of the present invention.
Below the running flow process of whole refrigeration unit is briefly described: first, motor 22 drive shaft 20 is rotated until described refrigeration unit runs well, the low-pressure gaseous working medium of compressor 10 flash-pot 18 in future is compressed into high-pressure gaseous working medium, this high-pressure gaseous working medium is delivered in condenser 12 carries out exothermic condensation, working medium enters fluid reservoir 14 subsequently, in this circulatory system, fluid reservoir 14 is in order to regulate the flow of whole pipeline working medium, when in refrigeration system, working medium circulation is very fast, fluid reservoir 14 can provide the working medium of q.s.Then, working medium enters turbo-expander 16 and carries out expansion work, turbo-expander 16 absorbs the expansion work of working medium and rotates, turbo-expander 16 rotates and drives rotating shaft 20 rotate and then drive compressor 10 to operate, for compressor 10 provides power, therefore reduce the electric energy needed for motor 22, reach energy-saving effect.Working medium after expansion enters the heat that evaporimeter 18 absorbs room air, thus lowers the temperature to indoor.Finally, evaporimeter 18 working medium out enter compressor 10 carry out next circulation.
In superincumbent specific embodiment, be described for the 26S Proteasome Structure and Function of refrigeration unit to compression-expansion module provided by the present invention, should be understood that, compression-expansion module provided by the present invention is not merely applicable to refrigeration unit, is also applicable to other power set.
In the above-described embodiments, turbo-expander 16 directly drives compressor 10 by rotating shaft 20, therefore reduces the electric energy required for drive motors 22.In the embodiment introduced below, the expansion work that turbo-expander 16 absorbs drives compressor 10 with another form.
As Fig. 2, it is the rough schematic view of another embodiment of refrigeration unit.Element identical with previous embodiment in the present embodiment will represent with identical label.The refrigeration unit of the present embodiment also comprises compressor 10, condenser 12, fluid reservoir 14, turbo-expander 16, evaporimeter 18 and motor 22, the function of these elements and identical in previous embodiment.Unlike, compressor 10 and turbo-expander 16 are not be fixed in same rotating shaft.Therefore, the power of turbo-expander 16 is not be passed to compressor 10 by rotating shaft.In the present embodiment, turbo-expander 16 connects a generator 30 and generates electricity.The electric power that this generator 30 sends can be supplied to motor 20 at least partially, can reduce the external electric energy required for drive motors 20 like this, thus reach energy-saving effect.Therefore, in essence, the power of compressor 10 is driven also to be the expansion work deriving from turbo-expander 16 absorption at least partially.The electric power that generator 30 sends also as other purposes, such as, can drive the fan etc. of condenser and evaporimeter.
In sum, the invention provides a kind of energy-conservation refrigeration unit, its expansion mechanism adopts turbo-expander, and working medium is expansion work in turbo-expander, and wherein the power resources of compressor are the expansion work deriving from turbo-expander absorption at least partially.So, the electric energy required for drive motors can be reduced, thus reach energy-saving effect.In addition, described refrigeration unit has a compression-expansion module, and described compression-expansion module adopts to be assembled compressor, turbine and motor moduleization, and the in-site installation facilitating refrigeration unit is arranged.
Concept described herein may be embodied to other form when not departing from its spirit and characteristic.Disclosed specific embodiment should be regarded as exemplary instead of restrictive.Therefore, scope of the present invention is by appended claim, instead of determines according to these descriptions before.Any change in the letter and equivalency range of claim all should belong to the scope of these claims.

Claims (10)

1. a compression-expansion module, for refrigeration unit, described refrigeration unit comprises condenser, fluid reservoir, evaporimeter, it is characterized in that, described compression-expansion module comprises:
Compressor, described compressor in order to compression from described evaporimeter working medium and send the working medium of compression to described condenser;
Motor, described motor is connected to drive described compressor with described compressor; And
Turbo-expander, described turbo-expander in order to receive from described fluid reservoir working medium and by described turbo-expander expand after working medium send described evaporimeter to.
2. compression-expansion module as claimed in claim 1, it is characterized in that, described compression-expansion module comprises rotating shaft, described compressor and described rotating shaft be fixedly connected with coaxially with described rotating shaft coaxial rotation, described turbo-expander and described rotating shaft be fixedly connected with coaxially with described rotating shaft coaxial rotation.
3. compression-expansion module as claimed in claim 2, it is characterized in that, described motor comprises p-m rotor and the stator around described p-m rotor, and described p-m rotor comprises the permanent magnet being fixed on described rotating shaft periphery, and described motor is between described compressor and described turbine.
4. compression-expansion module as claimed in claim 1, it is characterized in that, described compression-expansion module also comprises generator, and described generator is connected with described turbo-expander and generates electricity to be driven by described turbo-expander.
5. an energy-conservation refrigeration unit, comprise compressor, condenser, fluid reservoir, expansion mechanism, evaporimeter and drive the motor of described compressor, wherein working medium is at described compressor, condenser, fluid reservoir, circulate between expansion mechanism and evaporimeter, it is characterized in that, described expansion mechanism is turbo-expander, described working medium is expansion work in described turbo-expander, drives the part of the power needed for described compressor to derive from the expansion work of described turbo-expander absorption.
6. refrigeration unit as claimed in claim 5, it is characterized in that, described compressor and turbo-expander are fixed in same rotating shaft.
7. refrigeration unit as claimed in claim 6, it is characterized in that, described motor comprises p-m rotor and the stator around described p-m rotor, and described p-m rotor comprises the permanent magnet being fixed on described rotating shaft periphery.
8. refrigeration unit as claimed in claim 5, it is characterized in that, described refrigeration unit also comprises a generator, and described generator is connected with described turbo-expander and generates electricity to be driven by described turbo-expander, and the electric power that described generator sends is supplied to described motor at least partially.
9. refrigeration unit as claimed in claim 6, it is characterized in that, the parts of the compression-expansion module that described rotating shaft, compressor, turbo-expander and motor are as a whole, described condenser, fluid reservoir and evaporimeter are connected to described compression-expansion module by pipeline.
10. refrigeration unit as claimed in claim 5, it is characterized in that, described compressor is two-stage centrifugal compressor.
CN201520635956.9U 2015-08-21 2015-08-21 Energy-conservation refrigeration unit and compression-expansion module Active CN204943952U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105135724A (en) * 2015-08-21 2015-12-09 深圳智慧能源技术有限公司 Energy-saving refrigerating unit and compression expansion module
WO2017031616A1 (en) * 2015-08-21 2017-03-02 深圳智慧能源技术有限公司 Energy-saving refrigerating unit and compression-expansion module

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105135724A (en) * 2015-08-21 2015-12-09 深圳智慧能源技术有限公司 Energy-saving refrigerating unit and compression expansion module
WO2017031616A1 (en) * 2015-08-21 2017-03-02 深圳智慧能源技术有限公司 Energy-saving refrigerating unit and compression-expansion module

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