CN206593340U - A kind of antifrost evaporator for compressor refrigeration system - Google Patents
A kind of antifrost evaporator for compressor refrigeration system Download PDFInfo
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- CN206593340U CN206593340U CN201720254559.6U CN201720254559U CN206593340U CN 206593340 U CN206593340 U CN 206593340U CN 201720254559 U CN201720254559 U CN 201720254559U CN 206593340 U CN206593340 U CN 206593340U
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- heat
- exchange tube
- refrigerant
- radiating fin
- evaporator
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Abstract
The utility model is related to a kind of antifrost evaporator for compressor refrigeration system, including left and right end board assembly, heat-exchange tube and radiating fin, and every layer of heat-exchange tube is equipped with refrigerant and enters, export；Liquid refrigerant enters heat-exchange tube from the refrigerant inlet, and the refrigerant inlet is located at the top of heat-exchange tube one end；Become gasiform refrigerant by refrigerant outlet by heat exchange and leave heat-exchange tube, the refrigerant outlet is located at the lower section of heat-exchange tube one end；Every layer of heat-exchange tube bottom is equipped with drip tray, and the drip tray is crosscutting to cut off radiating fin, prevents that the water droplet condensed into upper strata cooling fin surfaces is past dirty along radiating fin, it is to avoid the heat-exchange tube further heat exchange with lower floor.The utility model can effectively prevent evaporator from frosting situation occur, be worked using the systems stay of compressor cooling.
Description
Technical field
The utility model is related to refrigeration technology field, more particularly to a kind of antifrost for compressor refrigeration system steams
Send out device.
Background technology
A critically important part in evaporator, four big parts of refrigeration, it is evaporated under low pressure using liquid low temperature refrigerant,
It is changed into the heat in steam and absorption air, so as to reach refrigeration purpose；In process of refrigerastion, due to refrigerant evaporating temperature
Low, a part of vapor liquefies in such low temperature environment, and the water droplet after liquefaction flows into drip tray along radiating fin, finally
Flow to outdoor discharge.But the water droplet after liquefaction is also continuous heat release ground mistake along the process that radiating fin flows to drip tray
Journey, if water droplet temperature reaches hoarfrost point and do not flow into drip tray also, water droplet can be tied on heat-exchange tube surface between radiating fin
Frost, so as to cause heat-exchange capacity to decline.
Air conditioner industry, when the air-conditioning positioned at the Changjiang river areas to the south is in heating state, takes the photograph if outdoor temperature is down to 4-5
Family name's degree, the heat exchanger being located outside (evaporator) is easy to the situation for frosting occur.
, can be by the side of frequency reducing if the compressor that air-conditioning is used is frequency-changeable compressor in the method for traditional antifrost
Formula reduces the heat exchange amount of evaporator, so that eliminate frosting risk, but such a mode is only applicable to the sky using frequency-changeable compressor
Adjust.For the air-conditioning using invariable frequency compressor, the mode of hesitation can only be used to reduce the heat exchange amount of evaporator, but it is such a
Mode can suspend the supply of indoor cold air, reduce the comfort level of people.
Water heater industry, Teat pump boiler as the operation principle of the air-conditioning in heating state, its internal structure
Often there is the situation of frosting in evaporator winter.
Freezer industry, during the freezer refrigerating using conventional evaporator, when cool house internal temperature, to be down to -1 to 0 Celsius
When spending, conventional evaporator is unavoidable to there is the situation of frosting.
Therefore, how evaporimeter frosting problem is effectively prevented, as technical problem urgently to be resolved hurrily at present.
The content of the invention
The purpose of this utility model be to overcome the deficiencies in the prior art there is provided it is a kind of can effectively prevent frosting be used for press
The evaporator of contracting machine cooling system.
To achieve the above object, technical scheme provided by the utility model is：It is a kind of for compressor refrigeration system
Antifrost evaporator, including left and right end board assembly, heat-exchange tube and radiating fin, radiating fin interval is side by side in left and right end
Between board component, heat-exchange tube passes through radiating fin, and the bending that takes the shape of the letter U is interspersed between left and right end board assembly, every layer of heat-exchange tube
Refrigerant is equipped with to enter, export；Liquid refrigerant enters heat-exchange tube from the refrigerant inlet, and the refrigerant inlet is located at
The top of heat-exchange tube one end；Become gasiform refrigerant by refrigerant outlet by heat exchange and open heat-exchange tube, the system
Lower section of the cryogen outlet positioned at heat-exchange tube one end；Every layer of heat-exchange tube bottom is equipped with drip tray, and the drip tray will be crosscutting to be dissipated
Hot fin cut-out, prevents that the water droplet condensed into upper strata cooling fin surfaces is past dirty along radiating fin, it is to avoid with lower floor
Heat-exchange tube further heat exchange.
Further, the V-shaped structure of the evaporator, in the case where evaporator length is constant by changing evaporator V
The width of shape mouthful, so as to change the contact area of heat exchange tube of evaporator and air, while can also accelerate water droplet along radiating fin
Piece down flows to the speed of drip tray.
Further, between the radiating fin at intervals of 2mm-10mm, than the interval between traditional radiating fin
It is slightly wider, water droplet is swimmingly flowed downstream into drip tray along radiating fin before frosting, accurate spacing distance need to combine water droplet
Depending on the length of passed through radiating fin and the gradient of evaporator.
The principle of this programme is as follows：
During liquid refrigerant is converted into gaseous refrigerant in heat-exchange tube, run into the air in evaporator
Heat-exchange tube is cooled, and starts to condense into water droplet when air themperature is down to dew-point temperature, because liquid refrigerant is from heat-exchange tube
Refrigerant inlet above one end enters heat-exchange tube, and liquid refrigerant is changed into after gaseous refrigerant in heat-exchange tube, gas
State refrigerant leaves heat-exchange tube by the refrigerant outlet below heat-exchange tube one end, so the first half of every layer of heat-exchange tube
Heat exchange amount at most, condense the first half that position is located at every layer of heat-exchange tube, condensing water droplet is flowed downstream into along radiating fin
Drip tray；In addition, expanding the interval between radiating fin, accelerate the speed that condensing water droplet flows into drip tray；Finally, drip tray is crosscutting
Radiating fin is cut off, radiating fin is segmented, hop count and the heat-exchange tube number of plies are corresponded, and are prevented in epimere cooling fin surfaces
The water droplet condensed into is past dirty along radiating fin, it is to avoid the heat-exchange tube further heat exchange with lower floor.
Compared with prior art, liquid refrigerant enters from the refrigerant inlet below heat-exchange tube one end in the prior art
Heat-exchange tube, liquid refrigerant is changed into after gaseous refrigerant in heat-exchange tube, and gaseous refrigerant passes through heat-exchange tube one end
The refrigerant outlet of top leaves heat-exchange tube, the air entered in evaporator is run into after heat-exchange tube is cooled often in heat friendship
The lower half for changing pipe condenses into water droplet and causes last frosting, and this programme turns the discrepancy of liquid refrigerant and gaseous refrigerant
Mouthful, make enter evaporator in air condensed at the first half of every layer of heat-exchange tube, in combination with the interval between radiating fin,
The height these two aspects of every layer of heat-exchange tube, enables water droplet after condensation smoothly to flow into drip tray before frosting, so as to effectively prevent
There is frosting situation in evaporator, is worked using the systems stay of compressor cooling.
Brief description of the drawings
Fig. 1 is the structural representation of evaporator in the utility model embodiment 1；
Fig. 2 is the structural representation of evaporator one side in the utility model embodiment 1；
Fig. 3 is the structural representation of evaporator in the utility model embodiment 2.
In figure：1-left end board component, 2-right-hand member board component, 3-heat-exchange tube, 4-radiating fin, 5-refrigerant enters
Mouthful, 6-refrigerant outlet, 7-drip tray.
Embodiment
With reference to specific embodiment 1 and 2, the utility model is described in further detail：
Embodiment 1
Referring to shown in accompanying drawing 1-2, a kind of antifrost evaporator for compressor refrigeration system described in the present embodiment 1,
Including left and right end board assembly 1,2, two layers of heat-exchange tube 3 and radiating fin 4 corresponding with two layers of heat-exchange tube 3, radiating fin
4 intervals are side by side between left and right end board assembly 1,2, and heat-exchange tube 3 passes through radiating fin 4, and the bending that takes the shape of the letter U is interspersed in left and right end
Between board component 1,2, every layer of heat-exchange tube 3 is equipped with refrigerant and enters, exports 5,6；Liquid refrigerant enters from the refrigerant
Mouth 5 enters heat-exchange tube 3, and the refrigerant inlet 5 is located at the top of the one end of heat-exchange tube 3；Become gasiform by heat exchange
Refrigerant leaves heat-exchange tube 3 by refrigerant outlet 6, and the refrigerant outlet 6 is located at the lower section of the one end of heat-exchange tube 3；Every layer
The bottom of heat-exchange tube 3 is equipped with drip tray 7, and the drip tray 7 is crosscutting to cut off radiating fin 4, prevents in the table of upper strata radiating fin 4
The water droplet that face is condensed into is past dirty along radiating fin 4, it is to avoid the further heat exchange of heat-exchange tube 3 with lower floor, meanwhile,
The height (i.e. height in Fig. 2 at A) of every layer of heat-exchange tube 3 is determined, this highly passes through drip tray 7 according to frosting risk
Installation site and determine that the i.e. length of corresponding with every layer of heat-exchange tube 3 radiating fin 4 of control simultaneously makes in the table of heat-exchange tube 3
The water droplet that face is condensed into smoothly flows downstream into drip tray 7 before frosting along radiating fin 4.
Evaporator is in vertical shape structure side by side.
Between radiating fin 4 at intervals of 3.5mm, it is more slightly wider than interval between traditional radiating fin, make water droplet in knot
Swimmingly drip tray 7 is flowed downstream into before frost along radiating fin 4.
In the present embodiment, compressor is by the gaseous refrigerant of gaseous refrigerant boil down to HTHP, the gas of HTHP
State refrigerant, which is sent to after condenser radiating, turns into the liquid refrigerant of normal temperature high voltage, and enters evaporator by mechanism of damming；Institute
State refrigerant inlet 5 of the liquid refrigerant above the one end of heat exchange tube of evaporator 3 and enter the heat-exchange tube 3, liquid refrigeration
After agent changes into gaseous refrigerant in heat-exchange tube 3, gaseous refrigerant is by the refrigerant outlet below the one end of heat-exchange tube 3
6 leave heat-exchange tube；During liquid refrigerant is converted into gaseous refrigerant in heat-exchange tube 3, into evaporator
Air runs into heat-exchange tube 3 and is cooled, and starts to condense into water droplet when air themperature is down to dew-point temperature, condenses position and is located at every layer
The first half of heat-exchange tube 3, condensing water droplet flows downstream into drip tray 7 along radiating fin 4；Embodiment is between radiating fin 4
Interval, the height these two aspects of every layer of heat-exchange tube 3 suitably increase the interval between radiating fin 4 according to actual conditions from hair
And the height of every layer of heat-exchange tube 3 of regulation, the water droplet of condensation is smoothly flowed into drip tray 7 before frosting, so as to prevent from steaming
There is the situation of frosting in hair device.
Embodiment 2
Referring to shown in accompanying drawing 3, the present embodiment difference from Example 1 is the V-shaped structure of evaporator, long in evaporator
By changing the width of evaporator V-shaped part in the case that degree is constant, so as to change the contact surface of heat exchange tube of evaporator 3 and air
Product, while can also accelerate the speed that water droplet down flows to drip tray 7 along radiating fin 4.
The present embodiment suitably increases the interval between radiating fin 4 according to actual conditions, adjusts every layer from three aspects
The height of heat-exchange tube 3 and the width of V-shaped part, enable the water droplet of condensation smoothly to flow into drip tray 7 before frosting, so as to prevent
There is the situation of frosting in evaporator.
Evaporator in Examples 1 and 2 can be suitably used for air-conditioning, water heater and freezer these three industries, can effectively prevent
Only there is frosting situation in evaporator, is worked using the systems stay of compressor cooling.
Examples of implementation described above are only the preferred embodiment of the utility model, not limit of the present utility model with this
Practical range, therefore the change that all shape, principles according to the utility model are made, all should cover in protection domain of the present utility model
It is interior.
Claims (3)
1. a kind of antifrost evaporator for compressor refrigeration system, including left and right end board assembly (1,2), heat-exchange tube (3)
And radiating fin (4), radiating fin (4) interval is side by side between left and right end board assembly (1,2), and heat-exchange tube (3), which is passed through, to be dissipated
Hot fin (4), the bending that takes the shape of the letter U is interspersed between left and right end board assembly (1,2), and every layer of heat-exchange tube (3) is equipped with refrigerant
Enter, export (5,6)；It is characterized in that：Liquid refrigerant enters heat-exchange tube (3), the refrigeration from the refrigerant inlet (5)
Agent entrance (5) is located at the top of heat-exchange tube (3) one end；Become gasiform refrigerant by heat exchange and pass through refrigerant outlet
(6) heat-exchange tube (3) is left, the refrigerant outlet (6) is located at the lower section of heat-exchange tube (3) one end；Every layer of heat-exchange tube (3) bottom
Portion is equipped with drip tray (7), and the drip tray (7) is crosscutting to cut off radiating fin (4), prevents on upper strata radiating fin (4) surface
The water droplet condensed into is past dirty along radiating fin (4), it is to avoid heat-exchange tube (3) further heat exchange with lower floor.
2. a kind of antifrost evaporator for compressor refrigeration system according to claim 1, it is characterised in that：It is described
Evaporator in it is vertical side by side or v-shaped structure.
3. a kind of antifrost evaporator for compressor refrigeration system according to claim 1, it is characterised in that：It is described
Between radiating fin (4) at intervals of 2mm-10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720254559.6U CN206593340U (en) | 2017-03-16 | 2017-03-16 | A kind of antifrost evaporator for compressor refrigeration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720254559.6U CN206593340U (en) | 2017-03-16 | 2017-03-16 | A kind of antifrost evaporator for compressor refrigeration system |
Publications (1)
| Publication Number | Publication Date |
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| CN206593340U true CN206593340U (en) | 2017-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720254559.6U Active CN206593340U (en) | 2017-03-16 | 2017-03-16 | A kind of antifrost evaporator for compressor refrigeration system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108626910A (en) * | 2017-03-16 | 2018-10-09 | 岑伟强 | A kind of antifrost evaporator and antifrost method for compressor refrigeration system |
-
2017
- 2017-03-16 CN CN201720254559.6U patent/CN206593340U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108626910A (en) * | 2017-03-16 | 2018-10-09 | 岑伟强 | A kind of antifrost evaporator and antifrost method for compressor refrigeration system |
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