CN206221246U - A kind of food product refrigeration cabinet CO2 sliding-vane compressors - Google Patents
A kind of food product refrigeration cabinet CO2 sliding-vane compressors Download PDFInfo
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- CN206221246U CN206221246U CN201621295395.3U CN201621295395U CN206221246U CN 206221246 U CN206221246 U CN 206221246U CN 201621295395 U CN201621295395 U CN 201621295395U CN 206221246 U CN206221246 U CN 206221246U
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Abstract
The utility model discloses a kind of food product refrigeration cabinet CO2Sliding-vane compressor.The technical problem to be solved is existing food product refrigeration occasion CO2Refrigerant system efficiency is low, energy-output ratio is very big, the utility model includes cylinder block, cylinder drive end bearing bracket, cylinder rear end cap, rotor and slide plate, the cylinder block, cylinder drive end bearing bracket, cylinder rear end cap composition cylinder inner cavity body, the upside of cylinder inner cavity body is compression chamber, downside is expansion chamber, and rotor is flexibly connected with slide plate, when rotor is rotated, slide plate top is contacted with the inwall of cylinder inner cavity body, and compression chamber and expansion chamber are divided into several cavity volume units by several slide plates；It is connected with compression chamber and is provided with compression side entrance and compression side outlet, is connected with expansion chamber and is provided with expansion side entrance and expansion side outlet.Using the utility model being arranged symmetrically by compression chamber and expansion chamber of said structure, CO has been reclaimed2Throttle produced expansion work in refrigerant running, reduces restriction loss.
Description
Technical field
The utility model is related to mechanical engineering technical field, and in particular to a kind of food product refrigeration cabinet CO2Slide sheet type compresses
Machine.
Background technology
As people are to environmental problem growing interest, the substitution problem of freon refrigerant also seems more and more prominent, with
CO2The proposition of Trans-critical cycle kind of refrigeration cycle, CO2Start to retrieve attention as refrigerant, and in Teat pump boiler, automobile
The fields such as air-conditioning achieve prominent progress.At the same time through by CO2Technology is applied to the freezing and refrigeration of food from these fields,
The CO for being applied to Food Freezing and Cold Storage is researched and developed2Refrigeration system, and achieve good effect.CO2Compressor is used as system
One of critical component turns into research and development focus, CO2Belong to inert gas, nontoxic non-stimulated, good security and chemical stability,
Safety non-toxic, it is non-combustible, even if not decomposing generation pernicious gas at high temperature yet；It is 1 to global warming potential index GWP,
CO2Commercial synthesis are not needed, it is only necessary to which extracting in an atmosphere just can be with easy to use；Meanwhile, it is to atmospheric ozone layer without any
Broken ring effect, ODP is 0.Also, CO2Superior thermophysical property itself and good migration characteristic also are adapted for it as system
Cold working medium, thermal conductivity factor and specific heat at constant pressure are high, and vapour density is small, and dynamic viscosity is small, and surface tension is small, and these features are unit
Miniaturization and cost savings provide premise.CO2Critical-temperature is 30.98 DEG C, and critical pressure is 7.38MPa, across facing
Battery limit (BL) does not undergo phase transition when being exchanged heat with external agency, therefore Trans-critical cycle CO2Circulation is exchanged and condensation process in the absence of latent heat.
CO2Because the physical property of its own is specific, problems with is there is in the process of running：Operating pressure is high, circulation effect
Rate is low.In cyclic process, condensation lateral pressure is larger with evaporation side pressure differential, but pressure is smaller.To CO2System is using straight
The mode of throttling is connect, its restriction loss is larger, causes CO2Circulate the reduction of whole efficiency.Particularly in food product refrigeration occasion, by
The temperature needed for the occasion is relatively low, and refrigeration system evaporating temperature is about -30 DEG C, causes to be applied to the refrigerant system efficiency of the occasion
Relatively low, energy-output ratio is very big.
Utility model content
The technical problems to be solved in the utility model is existing food product refrigeration occasion CO2Refrigerant system efficiency is low, the energy
Consumption is very big, there is provided a kind of food product refrigeration cabinet CO2Sliding-vane compressor.
In order to solve the above technical problems, the utility model uses following technical proposals：A kind of food product refrigeration cabinet CO2Slide plate
Formula compressor, including cylinder block, cylinder drive end bearing bracket, cylinder rear end cap, rotor and slide plate, the cylinder block, cylinder drive end bearing bracket, gas
Cylinder rear end cap constitutes cylinder inner cavity body, and the upside of cylinder inner cavity body is compression chamber, downside is expansion chamber, and rotor is with slide plate activity even
Connect, when rotor is rotated, slide plate top contacts with the inwall of cylinder inner cavity body, and several slide plates split compression chamber and expansion chamber
Into several cavity volume units；It is connected with compression chamber and is provided with compression side entrance and compression side outlet, is connected with expansion chamber and sets
There are expansion side entrance and expansion side outlet；Compression side outlet and expansion side entrance are arranged on the left side of cylinder inner cavity body, compressed side
Entrance and expansion side outlet are arranged at the right side of cylinder inner cavity body.
The rotor is cylinder, and rotor outside is provided with draw-in groove, and slide plate is arranged in draw-in groove.
Inwall molded line between compression chamber and expansion chamber is circular arc, and circular arc radian is π/45.
The expansion side outlet of the expansion chamber at least two.
The quantity of the slide plate is even number.
The expansion side entrance, compression side outlet and expansion side outlet are arranged in cylinder block, and compression side entrance is arranged on
On cylinder drive end bearing bracket.
The liquid pass hole connected with cylinder inner cavity body is also set up in cylinder block.
Designed for food product refrigeration cabinet using the utility model of said structure, by compression chamber and the symmetrical cloth of expansion chamber
Put, reclaimed CO2Throttle produced expansion work in refrigerant running, reduces restriction loss, can be used to lift CO2System
The cycle efficieny of cooling system.
Brief description of the drawings
Fig. 1 is the utility model internal structure schematic diagram；
Fig. 2 is the utility model cylinder drive end bearing bracket structural representation；
Fig. 3 is the utility model cylinder block cross section structure diagram.
Specific embodiment
As shown in Figure 1 to Figure 3, the utility model includes cylinder block 2, cylinder drive end bearing bracket 1, cylinder rear end cap 4, the and of rotor 5
Slide plate 3, the cylinder block 2, cylinder drive end bearing bracket 1, the composition cylinder inner cavity of cylinder rear end cap 4 body 21, the upside of cylinder inner cavity body 21
For compression chamber 24, downside is expansion chamber 25, rotor 5 is flexibly connected with slide plate 3；When rotor 5 is rotated, under the influence of centrifugal force,
The top of slide plate 3 contacts with the inwall 22 of cylinder inner cavity body 21, if be divided into for compression chamber 24 and expansion chamber 25 by several slide plates 3
Dry cavity volume unit 23, each cavity volume unit 23 is by adjacent slide plate, rotor, slide plate, cylinder drive end bearing bracket 1, cylinder rear end
Lid 4 collectively forms single cavity volume unit 23, and compression chamber is divided into multiple cavity volume units by multiple slide plates；It is connected with compression chamber 24
It is logical to be provided with compression side entrance 9 and compression side outlet 6, it is connected with expansion chamber 25 and is provided with expansion side entrance 7 and expansion side outlet 8；
Compression side outlet 6 and expansion side entrance 7 are arranged on the left side of cylinder inner cavity body 21, and compression side entrance 9 and expansion side outlet 8 are all provided with
Put on the right side of cylinder inner cavity body 21.High pressure is at compression side outlet 6 and at expansion side entrance 7, it is at compression side entrance 9 and swollen
Low pressure is at swollen side outlet 8, high and low pressure homonymy arrangement reduces compression chamber 24 with the adjacent volume chamber unit 23 of expansion chamber 25
Leakage rate.In order to ensure compressor operating efficiency, prevent the refrigerant gas between different pressures from ganging up and revealing, this is compressed
The high pressure of machine compression chamber configures the homonymy in cylinder block 2 with the high pressure of expansion chamber.It is close between compression chamber and expansion chamber in order to strengthen
The effect of envelope, rotor and cylinder contact section between compression chamber and expansion chamber, this section of cylinder inner wall molded line is circular arc, its radian
It is π/45, this section of circular arc can provide effectively sealing, further reduce the leakage rate between compression chamber and expansion chamber.
The rotor 5 is cylinder, and the outside of rotor 5 is provided with draw-in groove 51, and slide plate 3 is arranged in draw-in groove 51.Whole compressor
Structure symmetrical arrangement.
The cylinder inner cavity body 21 be many curve combination curved surfaces, circular arc 29 be located at compression side outlet 6 and expansion side entrance 7 it
Between cylinder inner cavity body 21 on, circular arc 29 be located at compression side outlet 6 and expansion side entrance 7 between the inwall of cylinder inner cavity body 21
On.Sealing between the compression chamber 24 of compressor and expansion chamber 25 contacts realization by rotor 5 with the inwall 22 of cylinder block 2.In order to
The effect sealed between enhancing compression chamber and expansion chamber, rotor and cylinder contact section, the section between compression chamber and expansion chamber
The inwall molded line of cylinder inner cavity body 21 is circular arc 29, and its radian is π/45, and this section of circular arc can provide effectively sealing, further reduce pressure
Leakage rate between contracting chamber and expansion chamber.
The expansion side outlet 8 of the expansion chamber 25 at least two.The utility model expansion side outlet 8 has three, uses
Magnetic valve controls to expand the on off state of side outlet 8 respectively, to meet the gas of expansion chamber 25 difference expansion ratio requirements.As refrigeration is
The change of operating mode of uniting, need to adjust the condensing pressure and evaporating pressure of refrigeration system, be arranged by setting multichannel at expansion side outlet
Gas is exported, and magnetic valve is configured per air exit all the way, and determine single air exit according to the change of operating mode by magnetic valve
Break-make.By way of multichannel air exit and solenoid valve control, expansion side gas difference expansion ratio requirements are met.
The quantity of the slide plate 3 is even number.Can be 2,4,8,10,12, expansion chamber 25 and compression chamber
24 quantity of cavity volume unit 23 is equal, equilibrium swelling chamber 25 and the gas force of compression chamber 24, it is ensured that expansion chamber 25 and compression chamber 24
Balance of the gas to the active force of slide plate 3.Compressor multiple cavity volume unit 23 is arranged symmetrically, and gas is divided into actual use
Compression chamber 24 and expansion chamber 25, CO is reclaimed by expansion chamber 252The expansion work of gas, promotes slide plate to be done work with rotor and rotates, drop
Low CO2Compressor operating power consumption.
The expansion side entrance 7, compression side outlet 6 and expansion side outlet 8 are arranged in cylinder block 2, and compression side entrance 9 sets
Put on cylinder drive end bearing bracket 1.
The liquid pass hole 10 connected with cylinder inner cavity body 21 is also set up in cylinder block 2.Compressor compresses chamber is unlubricated oily
State, slide plate 3 sprays into the liquid CO in compression chamber with the sealing of cylinder inner cavity body 21 by liquid pass hole 102Ensure that it is sealed.
Rotor 5 is responsible for driving slide plate to rotate, and slide plate does stretching motion in the teeth groove of rotor 5, in the top of rotor 5 and cylinder
Wall is contacted all the time, in sliding process, the volume of its composition, and in the different arc of internal face, what the volume of composition was continually changing.
The refrigerant gas for carrying out flash-pot are entered the cavity volume list of compressor by the compression side entrance 9 on cylinder block drive end bearing bracket 2
In unit 24, with the rotation of rotor 5, the volume of the cavity volume unit reduces, the pressure rise of compression chamber 24 of compressor, when the appearance
During the vane motion of product chamber unit to compression side outlet 6, the cavity volume unit and the condenser UNICOM, compression process knot of compression chamber
Beam.The refrigerant gas condensed by condenser enter the appearance of opposite side expansion chamber from the expansion side entrance 7 in cylinder block 2
In product chamber unit, with the rotation of rotor 5, volume increase in the cavity volume unit, the refrigerant gas of high pressure are in the cavity volume
Expanded in unit, and with the reduction of pressure.Now, in the cavity volume unit, with the reduction of gas pressure, gas push
Slide plate in the cavity volume, now, the expansion work of gas is converted into the kinetic energy of rotor, and stand-by motor does to the gas of compression chamber
Work(.
Stress is not during the circular arc molded line of cylinder block inwall 22 is according to vane motion, during in compression chamber and expansion chamber
Together, the molded line constituent curve of cylinder inner wall 22 is adjusted, cylinder inner wall is reduced to moving the support reaction of slide plate, slide plate is reduced operating
Abrasion condition.The compressor is designed for oilless (oil free) compressor, the presence of equal non lubricant oil in compression chamber and expansion chamber so that refrigeration
Lubricating oil, CO in lifting condenser are free of in agent2Gas and environment heat exchange efficiency, can significantly lift refrigeration system Energy Efficiency Ratio.
To ensure sealing and providing the lubrication of slide plate and cylinder inner wall, using to penetrating liquid CO in compression chamber2Mode, it is ensured that slide plate
With the sealing between cylinder block inwall and lubrication.
Claims (7)
1. a kind of food product refrigeration cabinet CO2Sliding-vane compressor, it is characterised in that：Including cylinder block（2）, cylinder drive end bearing bracket（1）、
Cylinder rear end cap（4）, rotor（5）And slide plate（3）, the cylinder block（2）, cylinder drive end bearing bracket（1）, cylinder rear end cap（4）Composition
Cylinder inner cavity body（21）, cylinder inner cavity body（21）Upside be compression chamber（24）, downside be expansion chamber（25）, rotor（5）With cunning
Piece（3）It is flexibly connected, rotor（5）During rotation, slide plate（3）Top and cylinder inner cavity body（21）Inwall（22）Contact, several
Slide plate（3）By compression chamber（24）And expansion chamber（25）It is divided into several cavity volume units（23）；With compression chamber（24）It is connected
It is logical to be provided with compression side entrance（9）With compression side outlet（6）, with expansion chamber（25）It is connected and is provided with expansion side entrance（7）And expansion
Side outlet（8）；Compression side outlet（6）With expansion side entrance（7）It is arranged on cylinder inner cavity body（21）Left side, compress side entrance
（9）With expansion side outlet（8）It is arranged at cylinder inner cavity body（21）Right side.
2. food product refrigeration cabinet CO according to claim 12Sliding-vane compressor, it is characterised in that：The rotor（5）For
Cylinder, rotor（5）Outside is provided with draw-in groove（51）, slide plate（3）It is arranged on draw-in groove（51）It is interior.
3. food product refrigeration cabinet CO according to claim 12Sliding-vane compressor, it is characterised in that：Compression chamber（24）With it is swollen
Swollen chamber（25）Between inwall molded line be circular arc（29）, circular arc（29）Radian is π/45.
4. food product refrigeration cabinet CO according to claim 12Sliding-vane compressor, it is characterised in that：The expansion chamber（25）
Expansion side outlet（8）At least two.
5. food product refrigeration cabinet CO according to claim 12Sliding-vane compressor, it is characterised in that：The slide plate（3）'s
Quantity is even number.
6. food product refrigeration cabinet CO according to claim 12Sliding-vane compressor, it is characterised in that：The expansion side entrance
（7）, compression side outlet（6）With expansion side outlet（8）It is arranged on cylinder block（2）On, compress side entrance（9）It is arranged on cylinder front end
Lid（1）On.
7. food product refrigeration cabinet CO according to claim 12Sliding-vane compressor, it is characterised in that：Cylinder block（2）It is upper to go back
Set and cylinder inner cavity body（21）The liquid pass hole of connection（10）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621295395.3U CN206221246U (en) | 2016-11-30 | 2016-11-30 | A kind of food product refrigeration cabinet CO2 sliding-vane compressors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621295395.3U CN206221246U (en) | 2016-11-30 | 2016-11-30 | A kind of food product refrigeration cabinet CO2 sliding-vane compressors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206221246U true CN206221246U (en) | 2017-06-06 |
Family
ID=58787682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621295395.3U Expired - Fee Related CN206221246U (en) | 2016-11-30 | 2016-11-30 | A kind of food product refrigeration cabinet CO2 sliding-vane compressors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206221246U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499630A (en) * | 2016-11-30 | 2017-03-15 | 郑州轻工业学院 | Food product refrigeration cabinet CO2Sliding-vane compressor |
-
2016
- 2016-11-30 CN CN201621295395.3U patent/CN206221246U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499630A (en) * | 2016-11-30 | 2017-03-15 | 郑州轻工业学院 | Food product refrigeration cabinet CO2Sliding-vane compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170606 Termination date: 20181130 |