CN207197009U - Refrigerant flow regulating mechanism and refrigerating device - Google Patents
Refrigerant flow regulating mechanism and refrigerating device Download PDFInfo
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- CN207197009U CN207197009U CN201720997655.XU CN201720997655U CN207197009U CN 207197009 U CN207197009 U CN 207197009U CN 201720997655 U CN201720997655 U CN 201720997655U CN 207197009 U CN207197009 U CN 207197009U
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- 230000007246 mechanism Effects 0.000 title claims abstract description 61
- 239000003507 refrigerant Substances 0.000 title claims abstract description 48
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 36
- 230000033001 locomotion Effects 0.000 claims abstract description 10
- 230000005540 biological transmission Effects 0.000 claims description 22
- 238000010276 construction Methods 0.000 claims description 6
- 238000010977 unit operation Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 239000011324 bead Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008844 regulatory mechanism Effects 0.000 description 1
- 239000011555 saturated liquid Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
The utility model discloses a refrigerant flow control mechanism and refrigerating plant. The refrigerant flow regulating mechanism includes: the blade assembly comprises blades, a kinematic pair and a driving part, wherein the blades are sequentially spliced along the circumferential direction of the axis of a shell to form a blade assembly, any two adjacent blades in the blade assembly are arranged in a sliding manner, and the blade assembly is installed on the shell through the kinematic pair; the blade assembly comprises an open state and a closed state, the blades together form an overflowing channel in the open state, and the blades close the overflowing channel in the closed state; the driving part drives the blades to move through the kinematic pair to open or close the overflowing channel. The utility model discloses can make the blade motion through the drive division to the open area who overflows the passageway is adjusted, can adapt to the different operating modes of unit, different loads.
Description
Technical field
Refrigeration technology field is the utility model is related to, in particular to a kind of refrigerant flow regulating mechanism and refrigeration
Device.
Background technology
In the prior art, the feed flow throttle mechanism that large centrifugal unit is mainly controlled using orifice-plate type, such as：Second hole
Plate, one-level orifice plate or one-level orifice plate+regulating valve throttle mechanism.
Wherein, two level orifice plate throttle mechanism principle is：When refrigerant is by first order orifice plate, just above saturated liquid
Line, while produce a little flash gas；Because flash gas occupies a part of space in pipeline, its flow changes,
The flow of refrigerant is changed within the specific limits when causing the refrigerant to enter second level orifice plate, and refrigerant is automatically adjusted so as to realize
The function of flow；Second level orifice plate is adjusted because the variation of flow produces different change in pressure drop with the height pressure difference of system
After reaching dynamic equilibrium, the stable throttling for playing refrigerant, buck functionality, so as to complete whole kind of refrigeration cycle.Refrigeration unit exists
When being run under standard condition, orifice plate can match to the liquid supply rate of evaporator with evaporation load, and unit can stablize normal operation.
Actually unit is often run in the case of variable working condition, varying duty, and now wave phenomenon just easily occurs for unit operation, is being pressed greatly
Under poor operating mode, under small pressure difference operating mode, when unit operation situation switchs to high load capacity by underload, when unit operation situation is by height
Load switchs to produce a very large impact unit operation during underload.Compared with two level orifice plate, one-level orifice plate or one-level orifice plate+tune
The regulating power for saving valve is lower.Therefore, although one-level orifice plate, two level orifice plate can automatically adjust in certain limit, it is dealt with
Variable working condition, varying duty ability are poor, are primarily adapted for use in centrifugal refigerating compressor of fixed operating mode etc.；
It can be seen that to deal with variable working condition, the ability of varying duty poor for the feed flow throttle mechanism of orifice-plate type of the prior art control,
In unit running process, flow can not be effectively adjusted, it is difficult to tackle operating mode change, the feelings of varying duty
Condition.
Utility model content
A kind of refrigerant flow regulating mechanism and refrigerating plant are provided in the utility model embodiment, to solve prior art
Flow can not be effectively adjusted in the feed flow throttle mechanism of the board-like control of mesopore, it is difficult to which adaptation condition is changed, become
The problem of load condition.
To achieve the above object, the utility model embodiment provides a kind of refrigerant flow regulating mechanism, including：Blade,
Kinematic pair and drive division, circumference of multiple blades along the axis of housing are spliced to form blade assembly, the blade group successively
It is mounted slidably between two blades of arbitrary neighborhood in part, the blade assembly is installed to the shell by the kinematic pair
On body；The blade assembly includes open mode and closed mode, and the multiple blade is collectively forming in the open mode
One flow channels, the multiple blade close the flow channels in the closed mode；Described in the drive division driving
Blade moves secondary motion to open or close the flow channels by described.
Preferably, the kinematic pair includes slide groove portion and the guide rail coordinated with the slide groove portion, each on the blade
Be mounted on a guide rail, multiple slide groove portions be installed on the housing, each guide rail with described in one
Slide groove portion is slidably connected.
Preferably, form a regular polygon after the axis of the multiple slide groove portion is intersecting.
Preferably, the refrigerant flow regulating mechanism also includes transmission mechanism, the drive division passes through the transmission
Mechanism drives the blade movement.
Preferably, it is separately installed with the rack coordinated with the transmission mechanism on each institute blade.
Preferably, the transmission mechanism includes driving gear and the driven gear for driving the rack, it is described
Driving gear is connected with the output end of the drive division, and the driving gear engages with the driven gear.
Preferably, the transmission mechanism also includes adjustment gear, the adjustment gear is fixedly mounted in described driven
On the end face of gear, the adjustment gear engages with the rack.
Preferably, the diameter of the adjustment gear is less than the diameter of the driven gear.
Preferably, the refrigerant flow regulating mechanism also includes the cap for being installed to the shell nozzle side, it is described
Driven gear is pivotably connected with the cap.
Preferably, it is slidably connected between two blades of arbitrary neighborhood by slide construction.
Preferably, the slide construction include being arranged on groove on a blade in the two neighboring blade with
And the fin on another blade in the two neighboring blade is arranged on, the fin is movably arranged as the groove
In.
Preferably, the fin cooperatively forms labyrinth seal structure with the groove.
Preferably, each blade includes an angle being in contact with the blade of each blade both sides
Portion, the angle in the angle portion meet：
α=360 °/Z
Wherein, α is the angle in the angle portion, and Z is the number of the blade.
Preferably, the maximum open area of the flow channels is A, then A=780~9760mm2。
Preferably, the drive division is YE.
Preferably, the aperture area of the flow channels is B, the rotational angle of the YE is θ, then
Preferably, the transmission mechanism includes worm gear and worm screw, wherein, the drive division passes through the worm drive institute
Worm gear wheel is stated, the adjustment gear is fixedly mounted on the end face of the worm gear, and the adjustment gear is nibbled with the rack
Close.
The utility model additionally provides a kind of refrigerating plant, including above-mentioned refrigerant flow regulating mechanism.
By adopting the above-described technical solution, the utility model can make blade movement by drive division, so as to adjust
The aperture area of circulation road, to realize that the size for adjusting throttle orifice reaches the purpose of adjusting refrigerant flow rate, thus it is adapted to
Unit difference operating mode, different load, unit running process is played maximum efficiency, substantially reduce operating cost, because unit is transported
Row condition range is wide, can greatly reduce type quantity, reduces exploitation amount.
Brief description of the drawings
Fig. 1 is the top view of the refrigerant flow regulating mechanism of the utility model embodiment；
Fig. 2 is Fig. 1 A-A sectional views；
Fig. 3 is Fig. 2 B-B sectional views；
Fig. 4 is Fig. 1 C-C sectional views；
Fig. 5 is the schematic diagram for the flow channels that blade is formed；
Fig. 6 is that the aperture area of flow channels in the utility model embodiment is bent with the change of YE rotational angle
Line chart；
Fig. 7 is the schematic diagram of the embodiment using Worm Wheel System in the utility model embodiment.
Description of reference numerals：1st, blade；2nd, housing；3rd, flow channels；4th, slide groove portion；5th, guide rail；6th, rack；7th, driving tooth
Wheel；8th, driven gear；9th, adjustment gear；10th, cap；11st, drive division；12nd, actuator seat；13rd, driving shaft；14th, worm gear；15、
Worm screw.
Embodiment
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings, but not as to this practicality
New restriction.
The utility model embodiment provides a kind of refrigerant flow regulating mechanism, referring to Fig. 1 to 4, refrigerant flow regulation
Mechanism includes：Blade 1, kinematic pair and drive division 11, the circumference of axis of multiple blades 1 along housing 2 are spliced to form successively
Blade assembly, it is mounted slidably between two blades 1 of arbitrary neighborhood in the blade assembly, the blade assembly passes through institute
Kinematic pair is stated to be installed on the housing 2；The blade assembly includes open mode and closed mode, and the multiple blade 1 exists
A flow channels 3 are collectively forming during the open mode, the multiple blade 1 closes the excessively stream in the closed mode
Passage 3；The drive division 11 drives the blade 1 by the motion secondary motion to open or close the flow channels 3.
Flow channels 3 are located at the center of these blades 1, when blade 1 in the presence of drive division 11 to away from housing 2
During the direction motion of axis, flow channels 3 are opened, and with axis is gradually distant from, the area of flow channels 3 gradually increases.
Conversely, then the area of flow channels 3 then tapers into, until flow channels 3 completely close.Therefore, by the above-mentioned means, can be with
Realize to realizing that the accurate of refrigerant flow automatically adjusts in the case of full working scope, varying duty.Preferably, the flow channels 3
Maximum open area is A, then A=780~9760mm2。
It can be seen that by adopting the above-described technical solution, the utility model can move blade 1 by drive division 11, from
And the aperture area of flow channels 3 is adjusted, to realize that the size for adjusting throttle orifice reaches the purpose of adjusting refrigerant flow rate, thus
Unit difference operating mode, different load are adapted to, unit running process is played maximum efficiency, substantially reduces operating cost, by
It is wide in unit operation condition range, type quantity can be greatly reduced, reduce exploitation amount.
Preferably, the kinematic pair includes slide groove portion 4 and the guide rail 5 coordinated with the slide groove portion 4, each blade 1
On be mounted on a guide rail 5, multiple slide groove portions 4 are installed on the housing 2, each guide rail 5 is with one
The individual slide groove portion 4 is slidably connected.Guide rail 5 is arranged in the groove of slide groove portion 4, and slide groove portion 4 can be pacified by screw etc.
It is attached on the end face of housing 2.So, guide rail 5 can provide guiding for each blade, it is moved in a predetermined direction, to realize
The closing of the opening of flow channels 3.Preferably, a regular polygon is formed after the axis of the multiple slide groove portion 4 is intersecting.
Preferably, the refrigerant flow regulating mechanism also includes transmission mechanism, and the drive division 11 passes through the transmission
Mechanism drives the blade 1 to move.It is highly preferred that it is separately installed with the tooth coordinated with the transmission mechanism on each institute blade 1
Bar 6.So, drive division 11 can drive rack 6 to move by transmission mechanism, because rack 6 is connected with blade 1, therefore, you can
Driving blade 1 is moved.
In a preferred embodiment, the transmission mechanism includes driving gear 7 and for driving the driven of the rack 6
Gear 8, the driving gear 7 are connected with the output end of the drive division 11, and the driving gear 7 is nibbled with the driven gear 8
Close.In this embodiment, driven gear is driven, you can moves rack 6.Obviously, driven gear can engage with rack 6,
Also other transition gears and the drive connection of rack 6 can be passed through.
In such as, in a preferred embodiment, the transmission mechanism also includes adjustment gear 9, the adjustment gear 9
It is fixedly mounted on the end face of the driven gear 8, the adjustment gear 9 engages with the rack 6.In order to realize to transmission
The regulation of ratio, it is preferable that the diameter of the adjustment gear 9 is less than the diameter of the driven gear 8.
In an alternate embodiment, transmission mechanism can also use worm-and-wheel gear, electronic in order to install
Actuator.For example, in the embodiment shown in fig. 7, bag, which states transmission mechanism, includes worm gear 14 and worm screw 15, wherein, drive division 11
Worm gear 14 is driven to rotate by worm screw 15, adjustment gear 9 is fixedly mounted on the end face of the worm gear 14, the adjustment gear
9 engage with the rack 6.
Preferably, the refrigerant flow regulating mechanism also includes the cap 10 for being installed to the open side of housing 2, described
Driven gear 8 is pivotably connected with the cap 10.For example, it can be protruded on the end face of the side towards housing 2 of cap 10
Bead of the ground formed with a ring-type, driven gear 8 can be arranged in the bead.
Preferably, it is slidably connected between the blade 1 of arbitrary neighborhood two by slide construction.So, slip can be passed through
Structure provides guiding for blade, the stitching portion between two adjacent blades 1 can also spliced complete, will not be in the process of motion
In stagger.
It is highly preferred that the slide construction includes the groove being arranged on a blade 1 in the two neighboring blade 1
And the fin on another blade 1 in the two neighboring blade 1 is arranged on, the fin is movably arranged as described
In groove.Preferably, the fin cooperatively forms labyrinth seal structure with the groove.Now, can be lubricated by the refrigerant of unit,
Reach the purpose of non-resistance slip.
So, because liquid refrigerant forms pressure difference △ P before and after the throttling of blade 1, even there is a small amount of refrigerant
Low-pressure side is leaked to from high-pressure side by the labyrinth seal structure, but does not interfere with restriction effect, meets orifice throttle principle.
Preferably, each blade 1 includes an angle being in contact with the blade 1 of each both sides of blade 1
Portion, the angle in the angle portion meet：
α=360 °/Z
Wherein, α is the angle in the angle portion, and Z is the number of the blade.
Therefore, the aperture regulation scope of the vane type refrigerant flow regulating mechanism in the utility model can from it is fully closed to
Full-gear, being actually needed according to unit, minimum opening value and maximum opening value is set, and blade quantity can be according to reality
Situation is adjusted, and is adjusted the scope of aperture and can be adjusted according to unit actual conditions, also can be according to the side for changing gearratio
Formula is adjusted.
Preferably, the drive division 11 is YE.Therefore, YE control flow channels 3 can be used
Aperture and then regulation flow, can be achieved to automatically control, control very simple.For example, YE is installed to actuator
On seat 12, the output end of YE can be then installed on driving shaft 13 by sleeve connection driving shaft 13, driving gear, can
Realize accurate reliable transmission.
It refer to Fig. 5, it is preferable that the aperture area of the flow channels is B, and the rotational angle of the YE is
θ, then
The utility model additionally provides a kind of refrigerating plant, including above-mentioned refrigerant flow regulating mechanism.
Certainly, above is preferred embodiment of the present utility model.It should be pointed out that the ordinary skill for the art
For personnel, on the premise of the utility model general principle is not departed from, some improvements and modifications can also be made, these improvement
The scope of protection of the utility model is also considered as with retouching.
Claims (18)
- A kind of 1. refrigerant flow regulating mechanism, it is characterised in that including：Blade (1), kinematic pair and drive division (11), it is multiple The circumference of axis of the blade (1) along housing (2) is spliced to form blade assembly successively, the arbitrary neighborhood in the blade assembly It is mounted slidably between two blades (1), the blade assembly is installed on the housing (2) by the kinematic pair；The blade assembly includes open mode and closed mode, the multiple blade (1) common shape in the open mode Into a flow channels (3), the multiple blade (1) closes the flow channels (3) in the closed mode；The drive division (11) drives the blade (1) by the motion secondary motion to open or close the flow channels (3)。
- 2. refrigerant flow regulating mechanism according to claim 1, it is characterised in that the kinematic pair includes slide groove portion (4) guide rail (5) and with the slide groove portion (4) coordinated, is each mounted on a guide rail (5) on the blade (1), Multiple slide groove portions (4) are installed, each guide rail (5) can slide with a slide groove portion (4) on the housing (2) Connect dynamicly.
- 3. refrigerant flow regulating mechanism according to claim 2, it is characterised in that the axle of the multiple slide groove portion (4) A regular polygon is formed after line is intersecting.
- 4. refrigerant flow regulating mechanism according to claim 1, it is characterised in that the refrigerant flow regulating mechanism Also include transmission mechanism, the drive division (11) drives the blade (1) to move by the transmission mechanism.
- 5. refrigerant flow regulating mechanism according to claim 4, it is characterised in that pacify respectively on each institute's blade (1) Equipped with the rack (6) coordinated with the transmission mechanism.
- 6. refrigerant flow regulating mechanism according to claim 5, it is characterised in that the transmission mechanism includes driving tooth Take turns (7) and the driven gear (8) for driving the rack (6), the driving gear (7) are defeated with the drive division (11) Go out end connection, the driving gear (7) is engaged with the driven gear (8).
- 7. refrigerant flow regulating mechanism according to claim 6, it is characterised in that the transmission mechanism also includes regulation Gear (9), the adjustment gear (9) are fixedly mounted on the end face of the driven gear (8), the adjustment gear (9) with Rack (6) engagement.
- 8. refrigerant flow regulating mechanism according to claim 7, it is characterised in that the diameter of the adjustment gear (9) Less than the diameter of the driven gear (8).
- 9. refrigerant flow regulating mechanism according to claim 6, it is characterised in that the refrigerant flow regulating mechanism Also include the cap (10) for being installed to the housing (2) open side, the driven gear (8) and the cap (10) are pivotly Connection.
- 10. refrigerant flow regulating mechanism according to claim 1, it is characterised in that two blades of arbitrary neighborhood (1) it is slidably connected between by slide construction.
- 11. refrigerant flow regulating mechanism according to claim 10, it is characterised in that the slide construction includes setting Groove on a blade (1) in the two neighboring blade (1) and it is arranged in the two neighboring blade (1) Another blade (1) on fin, the fin is movably arranged as in the groove.
- 12. refrigerant flow regulating mechanism according to claim 11, it is characterised in that the fin coordinates with the groove Form labyrinth seal structure.
- 13. refrigerant flow regulating mechanism according to claim 1, it is characterised in that each blade (1) includes one The angle portion that the individual blade (1) with each blade (1) both sides is in contact, the angle in the angle portion meet：α=360 °/ZWherein, α is the angle in the angle portion, and Z is the number of the blade.
- 14. refrigerant flow regulating mechanism according to claim 1, it is characterised in that the maximum of the flow channels (3) Aperture area is A, then A=780~9760mm2。
- 15. refrigerant flow regulating mechanism according to claim 6, it is characterised in that the drive division (11) is electronic Actuator.
- 16. refrigerant flow regulating mechanism according to claim 15, it is characterised in that flow channels (3) are opened Open area is B, and the rotational angle of the YE is θ, then<mrow> <mi>B</mi> <mo>=</mo> <mfrac> <mrow> <mn>49</mn> <msup> <mi>&pi;</mi> <mn>2</mn> </msup> <msup> <mi>&theta;</mi> <mn>2</mn> </msup> <msqrt> <mn>3</mn> </msqrt> </mrow> <mn>1350</mn> </mfrac> <mo>+</mo> <mn>14</mn> <mi>&pi;</mi> <mi>&theta;</mi> <mo>+</mo> <mn>450</mn> <msqrt> <mn>3</mn> </msqrt> <mo>.</mo> </mrow>
- 17. refrigerant flow regulating mechanism according to claim 5, it is characterised in that the transmission mechanism includes worm gear (14) and worm screw (15), wherein, the drive division (11) passes through the worm screw (15) and drives the worm gear (14) to rotate, the tune Section gear (9) is fixedly mounted on the end face of the worm gear (14), and the adjustment gear (9) is engaged with the rack (6).
- 18. a kind of refrigerating plant, it is characterised in that including the refrigerant flow regulation any one of claim 1 to 17 Mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720997655.XU CN207197009U (en) | 2017-08-10 | 2017-08-10 | Refrigerant flow regulating mechanism and refrigerating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720997655.XU CN207197009U (en) | 2017-08-10 | 2017-08-10 | Refrigerant flow regulating mechanism and refrigerating device |
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| Publication Number | Publication Date |
|---|---|
| CN207197009U true CN207197009U (en) | 2018-04-06 |
Family
ID=61796722
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720997655.XU Active CN207197009U (en) | 2017-08-10 | 2017-08-10 | Refrigerant flow regulating mechanism and refrigerating device |
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| CN (1) | CN207197009U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107388646A (en) * | 2017-08-10 | 2017-11-24 | 珠海格力电器股份有限公司 | Refrigerant flow regulating mechanism and refrigerating device |
| CN108535454A (en) * | 2018-07-10 | 2018-09-14 | 北京师范大学 | A kind of soil erosion test system and method |
| WO2022247892A1 (en) * | 2021-05-28 | 2022-12-01 | 爱法科技(无锡)有限公司 | Electronic multi-stage composite matrix type throttle orifice plate |
-
2017
- 2017-08-10 CN CN201720997655.XU patent/CN207197009U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107388646A (en) * | 2017-08-10 | 2017-11-24 | 珠海格力电器股份有限公司 | Refrigerant flow regulating mechanism and refrigerating device |
| CN108535454A (en) * | 2018-07-10 | 2018-09-14 | 北京师范大学 | A kind of soil erosion test system and method |
| WO2022247892A1 (en) * | 2021-05-28 | 2022-12-01 | 爱法科技(无锡)有限公司 | Electronic multi-stage composite matrix type throttle orifice plate |
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