CN209101595U - A kind of water cooler - Google Patents
A kind of water cooler Download PDFInfo
- Publication number
- CN209101595U CN209101595U CN201821593888.4U CN201821593888U CN209101595U CN 209101595 U CN209101595 U CN 209101595U CN 201821593888 U CN201821593888 U CN 201821593888U CN 209101595 U CN209101595 U CN 209101595U
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- Prior art keywords
- downward film
- water cooler
- film evaporator
- liquid pipe
- expansion valve
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The utility model discloses a kind of water coolers, including compressor, condenser, multiple downward film evaporators；Multiple downward film evaporators are in parallel, and the liquid pipe of each downward film evaporator is separately connected the liquid pipe of condenser, the air intake duct of the tracheae difference connect compressor of each downward film evaporator；Flowmeter and electric expansion valve are in series in the liquid pipe of each downward film evaporator；Each flowmeter acquires the cold medium flux signal in corresponding liquid pipe respectively, and is sent to water cooler control panel, and the control panel controls the aperture of each electric expansion valve according to the flow signal received.The water cooler of the utility model, by the downward film evaporator for designing multiple parallel connections, and cold medium flux meter and electric expansion valve are set in the liquid pipe of each evaporator, control panel controls the aperture of each electric expansion valve according to the flow signal that each flowmeter is sent, keep cold medium flux in the downward film evaporator of each parallel connection identical, so that refrigerant is evenly distributed, unit performance is improved.
Description
Technical field
The utility model belongs to air-conditioning technical field, specifically, being to be related to a kind of water cooler.
Background technique
Downward film evaporator is applied in the water cooler of medium and small cooling capacity currently on the market, and High cooling power is cold
Water dispenser group (such as 1000RT or more) is also difficult to substitute traditional flooded evaporator using downward film evaporator, and main cause exists
In: the refrigerant allotment area of the downward film evaporator of High cooling power is big, and the distributor of the evaporator of gas liquid two-phase flow is difficult
Heat exchange pipe surface by liquid refrigerant in large area evenly distributes, and causes heat exchange property poor, and the performance of unit is lower than full liquid
The level of formula water cooler.
Summary of the invention
The utility model provides a kind of water cooler, solves the problems, such as that refrigerant distribution is uneven in the prior art.
In order to solve the above-mentioned technical problem, the utility model is achieved using following technical scheme:
A kind of water cooler, including compressor, condenser, multiple downward film evaporators；The multiple downward film evaporator
Parallel connection, the liquid pipe of each downward film evaporator are separately connected the liquid pipe of condenser, and the tracheae of each downward film evaporator connects respectively
Connect the air intake duct of compressor；Flowmeter and electric expansion valve are in series in the liquid pipe of each downward film evaporator；Each flow
Meter acquires the cold medium flux signal in corresponding liquid pipe respectively, and is sent to water cooler control panel, and the control panel is according to reception
To flow signal control the aperture of each electric expansion valve.
Further, in the liquid pipe of each downward film evaporator, electric expansion valve is laid in flowmeter and falling film type steams
It sends out between device.
Further, the laying height of multiple downward film evaporators is equal.
Further, the structure of multiple downward film evaporators is identical, equal sized.
Further, there are two downward film evaporator settings.
Further, the water cooler further includes gas collecting jar with ground-on cover plate, and the air inlet of the gas collecting jar with ground-on cover plate is separately connected each falling liquid film
The tracheae of formula evaporator, the air intake duct of the gas outlet connect compressor of the gas collecting jar with ground-on cover plate.
Further, the compressor is laid with multiple, multiple compressor parallels.
Further, the condenser is laid with multiple, and multiple condensers are in parallel.
Compared with prior art, the advantages and positive effects of the utility model are as follows: the water cooler of the utility model, passes through
The downward film evaporator of multiple parallel connections is designed, and cold medium flux meter and electric expansion valve are set in the liquid pipe of each evaporator,
Control panel controls the aperture of each electric expansion valve according to the flow signal that each flowmeter is sent, and makes the falling film type of each parallel connection
Cold medium flux is identical in evaporator, so that refrigerant is evenly distributed, improves unit performance, solves refrigerant distribution in the prior art
Uneven problem.
After the detailed description of the utility model embodiment is read in conjunction with the figure, other features and advantages of the utility model
It will become clearer.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the embodiment for the water cooler that the utility model is proposed.
Appended drawing reference:
1, compressor；2, condenser；3, first flowmeter；4, the first electric expansion valve；
5, second flowmeter；6, the second electric expansion valve；7, the first evaporator；8, the second evaporator；
9, gas collecting jar with ground-on cover plate.
Specific embodiment
Specific embodiment of the present utility model is described in more detail with reference to the accompanying drawing.
The water cooler of the present embodiment includes mainly compressor 1, condenser 2, multiple downward film evaporators etc., referring to Fig. 1
It is shown；Multiple downward film evaporators are in parallel, and the liquid pipe of each downward film evaporator is separately connected the liquid pipe of condenser, each falling liquid film
The air intake duct of the tracheae difference connect compressor of formula evaporator；Be in series in the liquid pipe of each downward film evaporator flowmeter and
Electric expansion valve, each flowmeter acquires the cold medium flux signal in corresponding downward film evaporator liquid pipe respectively, and is sent to cold
Water dispenser group control panel；Control panel controls the aperture of each electric expansion valve according to the flow signal received.
Control panel controls the aperture of each electric expansion valve according to the flow signal that each flowmeter received is sent, and makes
The cold medium flux obtained in the liquid pipe of multiple downward film evaporators is equal, that is, so that into the refrigerant stream of each downward film evaporator
Measure it is identical so that the refrigerant of water cooler can be evenly distributed in multiple downward film evaporators, to guarantee that unit is big
While cooling capacity, the refrigeration performance of unit is improved, guarantees the high efficiency of unit.
The water cooler of the present embodiment, by designing the downward film evaporator of multiple parallel connections, and in the liquid of each evaporator
Cold medium flux meter and electric expansion valve are set on pipe, and control panel controls each electronics according to the flow signal that each flowmeter is sent
The aperture of expansion valve, makes in the downward film evaporator of each parallel connection that cold medium flux is identical, so that refrigerant is evenly distributed, improves machine
Group performance, solves the problems, such as that refrigerant distributes unevenness in evaporator in the prior art, thus guaranteeing the same of unit High cooling power
When, in turn ensure the high efficiency of unit.
In the liquid pipe of each downward film evaporator, electric expansion valve is laid between flowmeter and downward film evaporator,
That is flowmeter is preceding, and for electric expansion valve rear, refrigerant passes through electric expansion valve after flowmeter, steams subsequently into falling film type
Send out device.This is because liquid refrigerants after electric expansion valve throttles, will become gas-liquid two-phase refrigerant, if using flow at this moment
Meter acquisition cold medium flux signal, collected flow signal error are larger；Therefore, flowmeter is arranged in front of electric expansion valve,
Liquid refrigerants first flows through flowmeter, and flowmeter acquires cold medium flux signal, and then refrigerant enters falling film type through electric expansion valve again
Evaporator collects the liquid pipe cold medium flux on authentic and valid downward film evaporator in order to flowmeter, to pass through control
The aperture of electric expansion valve makes the cold medium flux into each downward film evaporator liquid pipe identical.
In the present embodiment, the laying height of multiple downward film evaporators is equal, avoids entering due to height Different Effects
The cold medium flux of each downward film evaporator is different, to improve the uniformity of refrigerant distribution.
In the present embodiment, the structure of multiple downward film evaporators is identical, equal sized, avoids due to structure snd size not
It is different with the cold medium flux for influencing to enter each downward film evaporator, to improve the uniformity of refrigerant distribution.
In the present embodiment, there are two downward film evaporator settings, two downward film evaporator parallel connections.By setting
Two downward film evaporators are set, not only can satisfy the demand of unit High cooling power, but also downward film evaporator design is avoided excessively to cause
Structure is complicated for water cooler.
In the present embodiment, water cooler further includes gas collecting jar with ground-on cover plate 9, and the air inlet of gas collecting jar with ground-on cover plate 9 is separately connected each falling film type
The tracheae of evaporator, the air intake duct of the gas outlet connect compressor of gas collecting jar with ground-on cover plate 9.The gas of each downward film evaporator outflow enters
After gas collecting jar with ground-on cover plate 9, it then flow to compressor 1 again, so that the gas flow of each falling film evaporator is more balanced.
In the present embodiment, compressor is centrifugal compressor or helical-lobe compressor, the compressor be laid with it is multiple, it is multiple
Compressor parallel, the gas outlet of gas collecting jar with ground-on cover plate 9 are separately connected the air intake duct of each compressor.Compressor setting is multiple, can be improved
The refrigeration performance of entire water cooler, moreover, gas collecting jar with ground-on cover plate 9 is reallocated after collecting the cold media gas of each downward film evaporator to every
A compressor improves each compressor and entire cooling-water machine so that the gas flow of the sucking of each compressor is more balanced
The performance of group.
In the present embodiment, condenser is air-cooled condenser or water-cooled condenser, the condenser be laid with it is multiple, it is multiple
Condenser is in parallel, to improve condensing capacity, exports the liquid refrigerants of lower temperature.
In the present embodiment, the model of multiple flowmeters is identical, and the model of multiple electric expansion valves is identical, multiple evaporators
Model it is identical.
In the following, including a compressor, a condenser, two downward film evaporators in parallel with water cooler: first
For evaporator 7, the second evaporator 8, the working principle of water cooler is described in detail.
First flowmeter 3 and the first electric expansion valve 4 are in series in the liquid pipe of the first evaporator 7, in the second evaporator 8
Liquid pipe on be in series with second flowmeter 5 and the second electric expansion valve 6.
The high-temperature gas refrigerant that compressor 1 is discharged enters condenser 2, and the liquid of certain degree of supercooling is condensed into after being exchanged heat
State refrigerant is discharged by the liquid pipe of condenser 2, is then divided into two-way, all the way by entering the first electronic expansion after first flowmeter 3
Valve 4 throttles, and forms gas-liquid two-phase refrigerant, subsequently into the first downward film evaporator 7, liquid refrigerants is in the first downward film evaporator
Refrigerant vapor is formed after evaporating in 7, steam enters gas collecting jar with ground-on cover plate 9 after flowing out the first downward film evaporator 7；Another way passes through second
Enter the second electric expansion valve 6 after meter 5 to throttle, gas-liquid two-phase refrigerant is formed, subsequently into the second downward film evaporator 8, liquid
State refrigerant forms refrigerant vapor after evaporating in the second downward film evaporator 8, steam enters after flowing out the second downward film evaporator 8
Gas collecting jar with ground-on cover plate 9；Two-way refrigerant vapor enters compressor 1 after collecting in gas collecting jar with ground-on cover plate 9, is discharged after compression by compressor 1, thus complete
At a complete refrigeration cycle.
On the one hand, (first flow is set before the first electric expansion valve 4 due to being respectively provided with flowmeter before two-way electric expansion valve
Second flowmeter 5 is arranged before second electric expansion valve 6 for meter 3), therefore when difference occurs in two-way liquid refrigerant stream amount, tune can be passed through
The aperture of whole first electric expansion valve 3 and the second electric expansion valve 4 remains that two-way liquid refrigerants flow is identical, this is ensured that
Two downward film evaporators (the first downward film evaporator 7 and the second downward film evaporator 8) flow distribution of refrigerant it is uniform
Property.
On the other hand, since water cooler includes the relatively small downward film evaporator (that two refrigerating capacitys respectively account for 50%
One downward film evaporator 7 and the second downward film evaporator 8) be formed in parallel, the downward film evaporator of every 50% refrigerating capacity relative to
The downward film evaporator that refrigerating capacity is 100% is much smaller, therefore refrigerant allotment area is relatively small, can be relatively easily by liquid
Cryogen heat exchange pipe surface of large area in evaporator evenly distributes, therefore also improves the uniform of flow distribution of refrigerant
Property.
In another aspect, the first downward film evaporator 7 and the second downward film evaporator 8 are symmetrically connected with gas collecting jar with ground-on cover plate 9, this makes
The vapor flow rate for obtaining the outflow of two downward film evaporators is identical, also ensures the uniformity of two-way flow distribution of refrigerant.
Due to aspects above, ensure that uniformity that refrigerant distributes in High cooling power downward film evaporator and
The uniformity of flow, thus while realizing unit High cooling power, and significantly improve High cooling power water cooler refrigerating capacity and
Efficiency.
Flowmeter, falling liquid film is arranged before in parallel, electric expansion valve by multiple identical downward film evaporators in the present embodiment
The mode of gas collecting jar with ground-on cover plate is set after formula evaporator, ensure that refrigerant distributes in multiple downward film evaporators uniformity and stream in parallel
The uniformity of road refrigerant flow, to realize and significantly improve the performance of High cooling power water cooler.
Certainly, the above description is not intended to limit the present invention, and the utility model is also not limited to the example above,
The variations, modifications, additions or substitutions that those skilled in the art are made in the essential scope of the utility model,
It should also belong to the protection scope of the utility model.
Claims (8)
1. a kind of water cooler, it is characterised in that: including compressor, condenser, multiple downward film evaporators；The multiple falling liquid film
Formula evaporator is in parallel, and the liquid pipe of each downward film evaporator is separately connected the liquid pipe of condenser, the gas of each downward film evaporator
Pipe is separately connected the air intake duct of compressor；
Flowmeter and electric expansion valve are in series in the liquid pipe of each downward film evaporator；Each flowmeter acquires correspondence respectively
Cold medium flux signal in liquid pipe, and it is sent to water cooler control panel, the control panel is according to the flow signal control received
Make the aperture of each electric expansion valve.
2. water cooler according to claim 1, it is characterised in that: in the liquid pipe of each downward film evaporator, electronics
Expansion valve is laid between flowmeter and downward film evaporator.
3. water cooler according to claim 1, it is characterised in that: the laying height of multiple downward film evaporators is equal.
4. water cooler according to claim 1, it is characterised in that: the structure of multiple downward film evaporators is identical, size
It is equal.
5. water cooler according to claim 1, it is characterised in that: there are two the downward film evaporator settings.
6. water cooler according to claim 1, it is characterised in that: the water cooler further includes gas collecting jar with ground-on cover plate, the collection
The air inlet of inflator is separately connected the tracheae of each downward film evaporator, the air-breathing of the gas outlet connect compressor of the gas collecting jar with ground-on cover plate
Pipe.
7. water cooler according to claim 6, it is characterised in that: the compressor is laid with multiple, multiple compressors
It is in parallel.
8. water cooler according to claim 1, it is characterised in that: the condenser is laid with multiple, multiple condensers
It is in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821593888.4U CN209101595U (en) | 2018-09-28 | 2018-09-28 | A kind of water cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821593888.4U CN209101595U (en) | 2018-09-28 | 2018-09-28 | A kind of water cooler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209101595U true CN209101595U (en) | 2019-07-12 |
Family
ID=67153909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821593888.4U Active CN209101595U (en) | 2018-09-28 | 2018-09-28 | A kind of water cooler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209101595U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110966781A (en) * | 2018-09-28 | 2020-04-07 | 青岛海尔智能技术研发有限公司 | Water chilling unit and control method |
| CN111322781A (en) * | 2020-03-13 | 2020-06-23 | 万吨通科技有限公司 | Refrigerator centralized cold source carbon dioxide cascade refrigeration system and refrigeration method |
| CN113310173A (en) * | 2020-02-26 | 2021-08-27 | 青岛海尔空调电子有限公司 | Air cooling unit and control system and control method thereof |
| CN113503653A (en) * | 2021-08-04 | 2021-10-15 | 珠海格力电器股份有限公司 | Multi-compressor refrigeration system and air conditioner |
-
2018
- 2018-09-28 CN CN201821593888.4U patent/CN209101595U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110966781A (en) * | 2018-09-28 | 2020-04-07 | 青岛海尔智能技术研发有限公司 | Water chilling unit and control method |
| CN113310173A (en) * | 2020-02-26 | 2021-08-27 | 青岛海尔空调电子有限公司 | Air cooling unit and control system and control method thereof |
| CN113310173B (en) * | 2020-02-26 | 2023-02-24 | 青岛海尔空调电子有限公司 | Control system and control method of air cooling unit |
| CN111322781A (en) * | 2020-03-13 | 2020-06-23 | 万吨通科技有限公司 | Refrigerator centralized cold source carbon dioxide cascade refrigeration system and refrigeration method |
| CN113503653A (en) * | 2021-08-04 | 2021-10-15 | 珠海格力电器股份有限公司 | Multi-compressor refrigeration system and air conditioner |
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