CN108826725A - refrigerating unit - Google Patents
refrigerating unit Download PDFInfo
- Publication number
- CN108826725A CN108826725A CN201810883327.6A CN201810883327A CN108826725A CN 108826725 A CN108826725 A CN 108826725A CN 201810883327 A CN201810883327 A CN 201810883327A CN 108826725 A CN108826725 A CN 108826725A
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- China
- Prior art keywords
- evaporator
- fluid
- compressor
- control valve
- flow control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000012530 fluid Substances 0.000 claims abstract description 54
- 230000010349 pulsation Effects 0.000 claims abstract description 15
- 238000005057 refrigeration Methods 0.000 claims description 34
- 238000001704 evaporation Methods 0.000 claims description 5
- 230000008020 evaporation Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000006200 vaporizer Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B6/00—Compression machines, plants or systems, with several condenser circuits
- F25B6/02—Compression machines, plants or systems, with several condenser circuits arranged in parallel
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention relates to a refrigerating unit comprising: an evaporator; a pulsation generator provided in an outflow path of the fluid in the evaporator, the pulsation generator repeatedly switching between an on state satisfying an on condition and an off state satisfying an off condition; when the pulse generator is in an opening state, the pulse generator conducts an outflow path of the evaporator, and fluid in the evaporator flows along a first direction; the pulse generator interrupts an outflow path of the evaporator when in a closed state, and at least the fluid flows in a second direction opposite to the first direction in the evaporator and forms a backflush flow. So through the switching over repeatedly of impulse generator between the on-state and off-state, alright form the recoil flow in the evaporimeter repeatedly, make the fluid in the evaporimeter flow along first direction and second direction in turn, exert external force from a plurality of directions to the incrustation scale in the evaporimeter, alright drive the incrustation scale and drop, realize the effect of pulsation scale removal. The descaling operation is simple, and the evaporator does not need to be disassembled and reinstalled during descaling.
Description
Technical field
The present invention relates to refrigeration technology fields, more particularly to refrigeration unit.
Background technique
Evaporator is the important feature in refrigeration unit, so that refrigerant is exchanged heat with outside air by evaporator.?
In refrigeration unit operational process, evaporator is easy to produce scale, and evaporator disassembly defensive position is generally employed hairbrush and carries out scrub
Scale removal.But it is more difficult that evaporator is dismantled in some refrigeration units, and weight is also needed if disassembly, cleaning, after cleaning
New installation, scale removal are cumbersome.
Summary of the invention
Based on this, it is necessary to for the cumbersome problem of traditional scale removal method, provide a kind of scale removal conveniently refrigeration machine
Group.
A kind of refrigeration unit, including：
Evaporator；
Flutter generator, on the outflow path of fluid in the evaporator, the flutter generator is meeting unlatching
Switch repeatedly between the open state of condition and the closed state for meeting closedown condition；
Wherein, the flutter generator is connected the outflow path of the evaporator in the open state, in the evaporator
Fluid along first direction flow；The flutter generator in off position when the outflow path of the evaporator is truncated, it is described
At least fluid flows along second direction opposite to the first direction and forms recoil stream in evaporator.
In above-mentioned refrigeration unit, it is provided with flutter generator on the outgoing route of fluid in evaporator, is sent out by pulsation
Repeatedly switching of the raw device between open state and closed state, recoil stream can be concatenated to form in evaporator, makes evaporator
Interior fluid is alternately flowed along first direction and second direction, applies external force from multiple directions to the scale in evaporator,
It drives scale to fall off, realizes the effect of pulsation scale removal.In this way, the water in evaporator is removed by scale removal pulsation with can be convenient
Dirt does not need to dismantle and reinstall evaporator in scale removal.
The unlocking condition and between the evaporator and the flutter generator in one of the embodiments,
The pressure value and/or velocity amplitude of outflow path upper fluid are related；
The pressure of the closedown condition and the outflow path upper fluid between the evaporator and the flutter generator
Force value and/or velocity amplitude are related.
In one of the embodiments, the flutter generator include main body and be set to the intracorporal flap of the master and elasticity
Part, the elastic component are connect with the flap；
When the closed state, the elastic component prevents the flap from being switched to the opening state by the closed state
State；When the open state, the elastic component is compressed and stores energy for the reset of the flap.
In one of the embodiments, further include compressor and condenser group, the output end of the compressor with it is described cold
The connection of condenser group, the input terminal of the compressor are connect with the evaporator, and between the condenser group and the evaporator
It is connected with each other.
Be provided between the evaporator and the compressor in one of the embodiments, main road and with the main road simultaneously
The branch of connection, the flutter generator is set to the branch road, and one of the main road and the branch are connected, the master
The other of road and the branch disconnect.
It in one of the embodiments, further include first flow control valve and second flow control valve, the second flow
Control valve connects with the flutter generator and is set to the branch road, the first flow control valve and the second flow control
Valve processed is in parallel and is set on the main road.
When the first flow control valve is opened to allow fluid by the main road in one of the embodiments, institute
Second flow control valve is stated to close to stop fluid by the flutter generator；The second flow control valve opening allows to flow
When body passes through the flutter generator, the first flow control valve is closed to stop fluid by the main road.
The condenser group includes multiple condensers in one of the embodiments, and multiple condensers are parallel with one another
And be connected between the compressor and the evaporator, and some or all of in multiple condensers with the compressor
Connection.
It in one of the embodiments, further include controller, the controller is negative according to the actual motion of the compressor
Lotus controls the quantity that the condenser is devoted oneself to work.
The condenser group further includes multiple third flow control valves, each condensation in one of the embodiments,
It is provided with the third flow control valve between device and the compressor, the controller is according to the reality of the compressor
Operating load controls the folding condition of multiple third flow control valves.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of refrigeration unit in one embodiment of the invention.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing
Give presently preferred embodiments of the present invention.But the invention can be realized in many different forms, however it is not limited to this paper institute
The embodiment of description.On the contrary, purpose of providing these embodiments is keeps the understanding to the disclosure more thorough
Comprehensively.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more phases
Any and all combinations of the listed item of pass.
As shown in Figure 1, the refrigeration unit 100 in one embodiment of the invention includes evaporator 10 and flutter generator 30, steam
Hair device 10 is for making refrigerant and extraneous exchange heat.Optionally, evaporator 10 is shell and tube evaporator.Flutter generator 30 is set
In evaporator 10 on the outflow path of fluid, i.e., by flutter generator 30 after the outflow of evaporator 10, pulsation occurs fluid
Device 30 is used to generate evaporator 10 scale removal pulsation, removes the scale in evaporator 10 by scale removal pulsation with can be convenient, no
It needs to dismantle and reinstall evaporator 10 in scale removal.
In some embodiments, flutter generator 30 is in the open state for meeting unlocking condition and the pass for meeting closedown condition
Switch repeatedly between closed state：Wherein, the outflow path of evaporator 10, evaporator is connected in flutter generator 30 in the open state
Fluid in 10 is flowed along first direction；Flutter generator 30 in off position when truncation evaporation 10 outflow path, evaporator
At least partly fluid flows along the second direction opposite with first direction and forms recoil stream in 10.Existed by flutter generator 30
Switching repeatedly between open state and closed state can be concatenated to form recoil stream in evaporator 10, make in evaporator 10
Fluid alternately flowed along first direction and second direction, external force is applied from multiple directions to the scale in evaporator 10,
It drives scale to fall off, realizes the effect of pulsation scale removal.
Further, the pressure of unlocking condition and the outflow path upper fluid between evaporator 10 and flutter generator 30
Force value and/or velocity amplitude are related；Closedown condition and the outflow path upper fluid between evaporator 10 and flutter generator 30
Pressure value and/or velocity amplitude it is related.For example, the pressure that unlocking condition is outflow path upper fluid reaches preset pressure value or pre-
If pressure limit, closedown condition is that the pressure value of outflow path upper fluid is not up to preset pressure value or pre-set pressure range, is led to
The unlocking condition and closedown condition of setting are crossed, control flutter generator 50 switches between open state and closed state.
Specifically, flutter generator 30 includes main body and is movably set in main intracorporal flap, and the original state of flap is
Closed state and there is preset pressure value, the fluid on outflow path is saved bit by bit flap when reaching preset pressure value to pressure and is opened,
When the fluid saved bit by bit discharges and Fluid pressure is less than preset pressure value, flap, which resets, is closed；I.e. on the outflow path of evaporator 10
Constantly repeat following procedure：It saves bit by bit fluid to Fluid pressure and reaches preset pressure value, wash flap open；Discharge the fluid saved bit by bit and stream
Body pressure is less than preset pressure value, and flap, which resets, closes, i.e., flap is opened repeatedly under the action of close to 10 1 side liquid of evaporator
It opens and closes.Wherein, fluid when flap is opened in evaporator 10 is flowed to first direction, and flap switches to closing by opening
When, evaporator 10 is interior to generate the recoil stream flowed along the second direction opposite with first direction, and the fluid in evaporator 10 is in valve
Along first direction and second direction, alternately flowing forms scale removal pulsation under valve effect, can generate to the scale in evaporator 10 more
The fluid force in a direction, and scale is made to fall off, achieve the effect that scale removal.
Further, flutter generator 30 further includes elastic component, and elastic component is connect with flap, and flutter generator 30, which is in, to close
When closed state, elastic component prevents flap from being switched to open state by closed state, i.e. elastic component stops flap under the pressure of fluid
It opens；In the open state, elastic component is compressed and stores energy for the reset of flap flutter generator 30, i.e. flap is opened
While allowing fluid from, compression elastic piece is that storage energy is closed in the reset of flap.
Refrigeration unit 100 further includes compressor 40 and condenser group 50, and the output end and condenser group 50 of compressor 40 connect
It connects, the input terminal of compressor 40 is connect with evaporator 10, and is connected with each other between condenser group 50 and evaporator 10.In this way,
In process of refrigerastion, the high temperature and high pressure gas that compressor 40 generates enters condenser group 50 and condenses heat release, becomes the liquid of low-temp low-pressure
Body simultaneously flows into evaporator 10, and the liquid of low-temp low-pressure exchanges heat with outside air in evaporator 10, realizes to outside air
Cooling effect, and become gas after the refrigerant evaporation endothermic in evaporator 10 and be circulated back to compressor 40.Optionally, compressor
40 be screw compressor 40.
In some embodiments, the main road a and branch b in parallel with mainstream a is provided between evaporator 10 and compressor 40,
Flutter generator 30 is set on branch b, and one is connected in main road a and branch b, and the other of main road a and branch b are disconnected.
Refrigeration unit 100 in the process of running, can choose main road a conducting, and branch b is disconnected, and make the fluid of the output in compressor 40
Enter compressor 10 by main road a；Or selection branch b conducting, main road a are disconnected, and pass through the fluid of the output in compressor 40
Enter compressor 10 after crossing the flutter generator 30 on branch b, so passes through the conducting and disconnection of selection branch b, can select
Whether scale removal is carried out to evaporator 10, it is easy to operate.
Further, refrigeration unit 100 includes first flow control valve 21 and second flow control valve 23, second flow control
Valve 23 processed is connected with flutter generator 30 and is set on branch b, and first flow control valve 21 is in parallel with second flow control valve 23
And it is set on main road a.In this way, first flow control valve 21 and second parallel with one another are respectively set on main road a and branch b
Control valve 23 can control main road a and branch by controlling the opening and closing of first flow control valve 21 and second flow control valve 23
The conducting and disconnection of road b can set to on-off flutter generator 30 in the case where not influencing the normal work of refrigeration unit 100
It is placed in evaporator 10 on the outgoing route of fluid.
Specifically, first flow control valve 21 open allow fluid pass through main road a when, second flow control valve 23 close with
Fluid is stopped to pass through flutter generator 30；Second flow control valve 23 is opened when fluid being allowed to pass through flutter generator 30, and first
Flow control valve 21 is closed to stop fluid by main road a.The initial stage that refrigeration unit 100 is run, first flow control valve
21 open, and second flow control valve 23 is closed, and fluid directly flows to compressor 40 from main road a.When the operation of refrigeration unit 100 is longer
A period of time after, first flow control valve 21 close, second flow control valve 23 open, fluid from branch b by pulsation hair
Compressor 40 is flowed to after raw device 30, is pulsed by the scale removal that flutter generator 30 generates, removes the scale in evaporator 10.
In some embodiments, condenser group 50 includes multiple condensers 52, and multiple condensers 52 are parallel with one another and connect
It is connected between compressor 40 and evaporator 10, and some or all of in multiple condensers 52 with compressor 40.For refrigeration machine
Group 100 provides multiple alternative condensers 52, can select the compressor 40 devoted oneself to work according to actual needs.
Further, refrigeration unit 100 further includes controller (not shown), and controller is according to the actual motion of compressor 40
The quantity that load control system condenser 52 is devoted oneself to work can optimize the utilization rate of 40 actual load of compressor.Specifically, refrigeration system
When system operation, high-pressure Ph and low pressure Pl is detected, according to corresponding condensation temperature Tc, evaporating temperature To and compressor 40
Running current I calculates compressor 40 actual motion load Q, i.e. Q=f (To, Tc, I), according to the value comprehensive descision of Q and Ph
Put into the quantity of the condenser 52 of entire refrigeration system.
Further, condenser group 50 further includes third flow control valve 54, each condenser 52 and compressor 40 it
Between be provided with third flow control valve 54, controller is according to the multiple third flow controls of actual motion load control system of compressor 40
The folding condition of valve 54.It corresponds to each condenser 52 and is provided with its third flow control valve 54 for whether coming into operation of control,
Controller control third flow control valve 54 folding condition, can control corresponding condenser 52 whether put into refrigeration system into
Row work.
Refrigeration unit 100 further includes oil eliminator 70 and device for drying and filtering 90, and oil eliminator 70 is connect with compressor 40, will
The lubricating oil in high steam that compressor 40 is discharged is separated, and device for drying and filtering 90 is set to condenser group 50 and evaporator 10
Between, it is used for impurity screening, to guarantee that equipment safety is efficiently run.
In above-mentioned refrigeration unit 100, it is provided with flutter generator 30 on the outgoing route of fluid in the vaporizer 10, is passed through
Repeatedly switching of the flutter generator 30 between open state and closed state, can be concatenated to form recoil in evaporator 10
Stream flows fluid in evaporator 10 alternately along first direction and second direction, to the scale in evaporator 10 from multiple sides
To external force is applied, scale can be driven to fall off, realize the effect of pulsation scale removal.In this way, being removed with can be convenient by scale removal pulsation
Scale in devaporation device 10 does not need to dismantle and reinstall evaporator 10 in scale removal.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of refrigeration unit (100), which is characterized in that including：
Evaporator (10)；
Flutter generator (30) is set in the evaporator (10) on the outflow path of fluid, and the flutter generator (30) exists
Meet the open state of unlocking condition and meet closedown condition closed state between switch repeatedly；
Wherein, the outflow path of the evaporator (10), the evaporation is connected in the flutter generator (30) in the open state
Fluid in device (10) is flowed along first direction；The flutter generator (30) in off position when the evaporator (10) are truncated
Outflow path, at least fluid flow along second direction opposite to the first direction and is formed instead in the evaporator (10)
The swash of wave.
2. refrigeration unit (100) according to claim 1, which is characterized in that the unlocking condition be located at the evaporation
The pressure value and/or velocity amplitude of outflow path upper fluid between device (10) and the flutter generator (30) are related；
The closedown condition and the outflow path upper fluid between the evaporator (10) and the flutter generator (30)
Pressure value and/or velocity amplitude it is related.
3. refrigeration unit (100) according to claim 1 or 2, which is characterized in that the flutter generator (30) includes master
Body and it is set to the intracorporal flap of the master and elastic component, the elastic component connect with the flap；
When the closed state, the elastic component prevents the flap from being switched to the open state by the closed state；Institute
When stating open state, the elastic component is compressed and stores energy for the reset of the flap.
4. refrigeration unit (100) according to claim 1, which is characterized in that further include compressor (40) and condenser group
(50), the output end of the compressor (40) is connect with the condenser group (50), the input terminal of the compressor (40) and institute
Evaporator (10) connection is stated, and is connected with each other between the condenser group (50) and the evaporator (10).
5. refrigeration unit (100) according to claim 4, which is characterized in that the evaporator (10) and the compressor
(40) main road (a) and the branch (b) in parallel with the main road (a) are provided between, the flutter generator (30) is set to described
On branch (b), and one of the main road (a) and the branch (b) are connected, in the main road (a) and the branch (b)
Another one disconnects.
6. refrigeration unit according to claim 5, which is characterized in that further include first flow control valve (21) and second
Control valve (23), the second flow control valve (23) are connected with the flutter generator (30) and are set to the branch (b)
On, the first flow control valve (21) is in parallel with second flow control valve (23) and is set on the main road (a).
7. refrigeration unit (100) according to claim 6, which is characterized in that the first flow control valve (21) is opened
When allowing fluid by the main road (a), the second flow control valve (23) is closed to stop fluid by the pulsation
Generator (30)；The second flow control valve (23) is opened when fluid being allowed to pass through the flutter generator (30), and described the
Flow control valve (21) is closed to stop fluid by the main road (a).
8. refrigeration unit (100) according to claim 4, which is characterized in that the condenser group (50) includes multiple cold
Condenser (52), multiple condensers (52) it is parallel with one another and be connected to the compressor (40) and the evaporator (10) it
Between, and be connected to some or all of in multiple condensers (52) with the compressor (40).
9. refrigeration unit (100) according to claim 8, which is characterized in that further include controller, the controller according to
The quantity that condenser (52) described in the actual motion load control system of the compressor (40) is devoted oneself to work.
10. refrigeration unit (100) according to claim 8, which is characterized in that the condenser group (50) further includes multiple
Third flow control valve (54) is provided with the third flow control between each condenser (52) and the compressor (40)
Valve (54) processed, the controller is according to the multiple third flow controls of the actual motion load control system of the compressor (40)
The folding condition of valve (54) processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810883327.6A CN108826725A (en) | 2018-08-06 | 2018-08-06 | refrigerating unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810883327.6A CN108826725A (en) | 2018-08-06 | 2018-08-06 | refrigerating unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108826725A true CN108826725A (en) | 2018-11-16 |
Family
ID=64153614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810883327.6A Pending CN108826725A (en) | 2018-08-06 | 2018-08-06 | refrigerating unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108826725A (en) |
Cited By (4)
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| CN109990506A (en) * | 2019-04-09 | 2019-07-09 | 山东大学 | A kind of pulsation heat exchanger and its deep well heat exchanging system |
| CN110793227A (en) * | 2019-04-09 | 2020-02-14 | 山东大学 | Refrigerating system for deep well mining |
| CN110926061A (en) * | 2019-04-09 | 2020-03-27 | 山东大学 | Noise-controlled deep well mining refrigeration system |
| CN110986659A (en) * | 2019-12-13 | 2020-04-10 | 珠海格力电器股份有限公司 | Descaling control method based on pulsating water flow and water chilling unit |
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| CN110926061A (en) * | 2019-04-09 | 2020-03-27 | 山东大学 | Noise-controlled deep well mining refrigeration system |
| CN111089433A (en) * | 2019-04-09 | 2020-05-01 | 山东大学 | Refrigerating system for controlling pulsating flow of evaporator |
| CN111089432A (en) * | 2019-04-09 | 2020-05-01 | 山东大学 | Refrigerating system for controlling noise of evaporator |
| CN110926061B (en) * | 2019-04-09 | 2020-09-18 | 山东大学 | Noise-controlled deep well mining refrigeration system |
| CN110986659A (en) * | 2019-12-13 | 2020-04-10 | 珠海格力电器股份有限公司 | Descaling control method based on pulsating water flow and water chilling unit |
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