CN207487179U - A kind of flooded evaporator that can efficiently promote gas-liquid separation - Google Patents
A kind of flooded evaporator that can efficiently promote gas-liquid separation Download PDFInfo
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- CN207487179U CN207487179U CN201721447132.4U CN201721447132U CN207487179U CN 207487179 U CN207487179 U CN 207487179U CN 201721447132 U CN201721447132 U CN 201721447132U CN 207487179 U CN207487179 U CN 207487179U
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- strainer
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- liquid separation
- evaporator
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Abstract
The utility model is related to a kind of flooded evaporators that can efficiently promote gas-liquid separation, belong to technical field of heat exchangers.Including cylinder, it is set to end socket, the tube sheet at cylinder both ends, be set to air entry above cylinder, lower section supply opening, it is set to heat exchanger tube, the refrigerant of inner barrel, strainer is further included, the strainer is arranged in cylinder close at refrigerant liquid level, is arranged higher than heat exchanger tube, and below air entry, the strainer and the tube sheet of evaporator influent side one end are fixed.The utility model close at refrigerant liquid level and close to evaporator influent side by setting strainer, above strainer, setting gas averaging board below air entry, uniform flow field, liquid level raising and fluid spills caused by inhibiting the violent boiling in evaporator close to the refrigerant of influent side, and so that the gaseous coolant flow velocity near liquid level is relatively low, promote the droplets fall back near liquid level, substantially reduce absorbing gas belt liquid risk, can effectively expand the maximal inspiratory capacity of the cylinder.
Description
Technical field
The utility model belongs to technical field of heat exchangers, and in particular to a kind of full-liquid type that can efficiently promote gas-liquid separation steams
Send out device.
Background technology
Flooded evaporator is widely used in Central Air-condition Refrigerator group, and such heat exchanger has compact-sized, heat transfer effect
The advantages that rate is high, and heat exchange is stablized.Its operation principle is：Refrigerant walks shell side, and refrigerating medium walks tube side, and liquid refrigerant passes through heat exchange
Tube wall is exchanged heat with liquid refrigerating medium and is evaporated to gaseous state, and the refrigerant of gasification enters compressor by air entry.A certain
Under specification evaporator tube, by exchanging heat and absorbing gas belt liquid is influenced, maximum cold is also restrained.If beyond the evaporator tube
The maximum cold that can bear, on the one hand, violent explosive evaporation caused by heat exchanger tube internal-external temperature difference in evaporator, it is especially close
Heat exchanger tube one end of influent side, can cause a large amount of fluid spills, and the liquid level that can cause the side is higher, while the influent side temperature difference is big,
Evaporation capacity bigger, thus in evaporator close to influent side drop it is more, from air-breathing open height smaller, the space smaller of falling is inhaled
Gas carrying liquid risk greatly increases；And one end of the heat exchanger tube far from influent side, since pipe internal-external temperature difference is smaller, boiling is also smaller,
Evaporation capacity is also smaller, and fluid spills are also less, and the liquid level of the side is relatively low, and generally speaking the boiling situation outside heat exchanger tube is along evaporator
Water inlet direction is gradually weakened, and liquid level also changes (as shown in Fig. 1 liquid levels 12) from high to low；On the other hand, compressor air suction
Measure larger, gaseous coolant flow velocity is higher, and the drop that generates of easily boiling is taken away, and generates the risk of absorbing gas belt liquid, influences entire
The performance of unit can damage compressor when serious.Existing flooded evaporator is mainly by increase compressor air suction mouth and evaporator
The space of refrigerant ensures gas-liquid separation, container volume can be caused to increase in this way, and cost increases, while limited separated space
The maximum cooling capacity of evaporator can be limited；Or strainer is set to detach liquid refrigerants in evaporator air entry, such as
Scheme disclosed in CN203298544U just belongs to this type, but does not consider that heat exchanger tube is outer along tube side side in evaporator
To influence of the boiling situation to absorbing gas belt liquid, also fail to provide and expand the effective method of a certain specification evaporator cold range.
Scheme as disclosed in CN203298544U mainly provides a kind of removing for centrifugal unit flooded evaporator
Mist structure, the technical solution for solving the problems, such as it are the top setting mesh mist eliminators of heat-exchanging tube bundle, and mesh mist eliminator is by stainless steel
Silk screen is made, mesh mist eliminator both sides setting mesh mist eliminator end plate.By the dual demisting of mesh mist eliminator and air-breathing baffle
Filtering eliminates the fine droplet carried secretly in gaseous refrigerant, avoids damage of the absorbing gas belt liquid to compressor.But the structure is not examined
Consider the outer influence along the boiling situation in tube side direction to absorbing gas belt liquid of heat exchanger tube in evaporator, and be paved under gas averaging board whole
Stainless steel cloth is opened, whole stainless steel cloth length is long, and cost is higher, and welding is easily deformed, and installation is also more complicated.
Utility model content
The defects of the purpose of this utility model is aiming at the prior art, provide one kind can inhibit liquid level acutely boiling fly
It splashes, there is the flooded evaporator of high-efficiency gas reservoir effect.
The technical solution adopted in the utility model is：Including cylinder, end socket, the tube sheet at cylinder both ends are set to, is set to
The supply opening of air entry, lower section above cylinder is set to heat exchanger tube, the refrigerant of inner barrel, further includes strainer, the filter
Net is arranged in cylinder close at refrigerant liquid level, is arranged higher than heat exchanger tube, and below air entry, the strainer and water inlet
The tube sheet of side one end is fixed.
Further preferred structure, the strainer are fixed with cross steel bar, are positioned in the support plate of lower section, the cross
Steel bar, support plate and barrel soldering are fixed.High-velocity fluid is avoided to cause deformation failure to strainer impact.
Further preferred structure, the strainer is with heat exchanger tube maximum tube array pitch from less than 60mm.
Further preferred structure, the strainer length are the 1/3 to 1/2 of barrel lenght, and thickness is 25-50mm.
Further preferred structure, the strainer top arrangement gas averaging board.By the gas averaging board, make the gaseous state of ullage
Refrigerant flow rate is relatively low, increases the probability that drop is fallen after rise in gas averaging board underlying space, avoids droplets from quickly being taken away by high-velocity fluid.
Further preferred structure, the diameter of the through-hole set at air entry on the gas averaging board are less than far from air-breathing
The diameter of the through-hole set at mouthful.
Further preferred structure, the through-hole is circular hole, one kind in square hole, delthyrium.
The utility model close at refrigerant liquid level and close to influent side by setting strainer, above strainer, air-breathing
Mouth lower section setting gas averaging board, uniform flow field inhibit in evaporator close to the acutely liquid level caused by boiling of the refrigerant of influent side
Raising and fluid spills, and so that the gaseous coolant flow velocity near liquid level is relatively low, promote the droplets fall back near liquid level, substantially subtract
Small absorbing gas belt liquid risk can effectively expand the maximal inspiratory capacity of the cylinder.
The utility model inhibits the boiling of liquid refrigerants by way of strainer is set to add gas averaging board, and it is big to eliminate influent side
The absorbing gas belt liquid risk that liquid level elevated band caused by the temperature difference is come.Smaller strainer can achieve the purpose that balance liquid level, cost compared with
Low, simple installation, intensity is high, improves the space availability ratio inside evaporator.
Description of the drawings
Fig. 1 is existing evaporator internal liquid level schematic diagram；
Fig. 2 can efficiently promote gas-liquid separation flooded evaporator；
Fig. 3 can efficiently promote gas-liquid separation flooded evaporator internal liquid level schematic diagram；
Fig. 4 is strainer front view；
Fig. 5 is strainer side view；
Fig. 6 is strainer vertical view；
In figure, 1- end sockets, 2- tube sheets, 3- cylinders, 4- air entries, 5- gas averaging boards, 6- strainers, 7- end sockets, 8- heat exchanger tubes, 9-
Supply opening, 10- tube sheets, 11- support plates, 12- liquid levels, 13- cross steel bars.
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments, convenient for being well understood
The utility model, but they do not form the utility model and limit.
As shown in Fig. 2-Fig. 3, the utility model includes cylinder 3, and the tube sheet 2,10 at 3 both ends of cylinder has mounted in 3 liang of cylinder
The end socket 1,7 at end, the air entry 4 of the top of cylinder 3, the gas averaging board 5 in cylinder 3, strainer 6, heat exchanger tube 8, the feed flow of 3 bottom of cylinder
Mouth 9.
With reference to shown in Fig. 4-Fig. 6, strainer 6 and the cross steel bar 13 of refrigerant ullage are bound, and form net-filter assembly,
It is placed in support plate 11, cross steel bar 13 is welded and fixed with support plate 11 and cylinder 3, and body avoids high-velocity fluid from impacting strainer
Cause deformation failure.Strainer 6 is arranged in evaporator 8 top of heat exchanger tube, and with 8 maximum tube array pitch of heat exchanger tube from less than 60mm,
Strainer 6 is close to the tube sheet 10 of evaporator influent side one end, and 3 length of strainer is the 1/3~1/2 of 3 length of cylinder.The strainer inhibits
The boiling of liquid refrigerants at liquid level, the absorbing gas belt liquid risk that liquid level elevated band caused by eliminating the big temperature difference of evaporator influent side is come,
By the adjustment effect of strainer, evaporator interior liquid refrigerant liquid level tends to balance, and air entry arranged beneath gas averaging board 5 passes through
The gas averaging board 5, the gaseous coolant flow velocity for making ullage is relatively low, increases the probability that drop is fallen after rise in gas averaging board underlying space, keeps away
Exempt from drop quickly to be taken away by high-velocity fluid.
The utility model close at refrigerant liquid level and close to influent side by setting strainer 6, strainer 6 above, suction
4 lower section setting gas averaging board 5 of gas port, uniform flow field, caused by inhibiting the violent boiling in evaporator close to the refrigerant of influent side
Liquid level increases and fluid spills, liquid level in balancing evaporator, the air-breathing that liquid level elevated band caused by eliminating the big temperature difference of influent side is come
Band liquid risk so that the gaseous coolant flow velocity near liquid level is relatively low, promotes the droplets fall back near liquid level, substantially reduces absorbing gas belt
Liquid risk, and smaller strainer can achieve the purpose that balance liquid level, and cost is relatively low, simple installation, and intensity is high, improves steaming
The space availability ratio inside device is sent out, can effectively expand the maximal inspiratory capacity of the cylinder.
The content that this specification is not described in detail belongs to the prior art well known to professional and technical personnel in the field.
Claims (7)
1. a kind of flooded evaporator that can efficiently promote gas-liquid separation including cylinder, is set to end socket, the pipe at cylinder both ends
Plate, be set to air entry above cylinder, lower section supply opening, be set to heat exchanger tube, the refrigerant of inner barrel, feature exists
In：Strainer is further included, the strainer is arranged in cylinder close at refrigerant liquid level, is arranged higher than heat exchanger tube, and positioned at air-breathing
Below mouthful, the strainer and the tube sheet of influent side one end are fixed.
2. a kind of flooded evaporator that can efficiently promote gas-liquid separation according to claim 1, it is characterised in that：It is described
Strainer is fixed with cross steel bar, is positioned in the support plate of lower section, the cross steel bar, support plate and barrel soldering are fixed.
3. a kind of flooded evaporator that can efficiently promote gas-liquid separation according to claim 1 or 2, it is characterised in that：
The strainer is with heat exchanger tube maximum tube array pitch from less than 60mm.
4. a kind of flooded evaporator that can efficiently promote gas-liquid separation according to claim 1 or 2, it is characterised in that：
The strainer length is the 1/3 to 1/2 of barrel lenght, and thickness is 25-50mm.
5. a kind of flooded evaporator that can efficiently promote gas-liquid separation according to claim 1, it is characterised in that：It is described
Arrangement gas averaging board above strainer.
6. a kind of flooded evaporator that can efficiently promote gas-liquid separation according to claim 5, it is characterised in that：It is described
The diameter of the through-hole set at air entry on gas averaging board is less than the diameter far from the through-hole set at air entry.
7. a kind of flooded evaporator that can efficiently promote gas-liquid separation according to claim 6, it is characterised in that：It is described
Through-hole is circular hole, one kind in square hole, delthyrium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721447132.4U CN207487179U (en) | 2017-11-02 | 2017-11-02 | A kind of flooded evaporator that can efficiently promote gas-liquid separation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721447132.4U CN207487179U (en) | 2017-11-02 | 2017-11-02 | A kind of flooded evaporator that can efficiently promote gas-liquid separation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207487179U true CN207487179U (en) | 2018-06-12 |
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ID=62479056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721447132.4U Active CN207487179U (en) | 2017-11-02 | 2017-11-02 | A kind of flooded evaporator that can efficiently promote gas-liquid separation |
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| CN (1) | CN207487179U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111750570A (en) * | 2019-03-28 | 2020-10-09 | 开利公司 | Evaporator and baffle plate structure thereof |
| CN112577221A (en) * | 2019-09-27 | 2021-03-30 | 开利公司 | Evaporator and liquid blocking device thereof |
-
2017
- 2017-11-02 CN CN201721447132.4U patent/CN207487179U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111750570A (en) * | 2019-03-28 | 2020-10-09 | 开利公司 | Evaporator and baffle plate structure thereof |
| CN112577221A (en) * | 2019-09-27 | 2021-03-30 | 开利公司 | Evaporator and liquid blocking device thereof |
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