CN208704224U - A kind of condensation heat recovery removes defrosting system - Google Patents
A kind of condensation heat recovery removes defrosting system Download PDFInfo
- Publication number
- CN208704224U CN208704224U CN201820918043.1U CN201820918043U CN208704224U CN 208704224 U CN208704224 U CN 208704224U CN 201820918043 U CN201820918043 U CN 201820918043U CN 208704224 U CN208704224 U CN 208704224U
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- air
- evaporator
- defrosting
- valve
- static pressure
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Abstract
The utility model discloses a kind of condensation heat recoveries to remove defrosting system.The throttle valve of the utility model is separately connected the first branch and second branch by pipeline, and the first branch connect compressor air inlet of solenoid valve one and evaporator one is arranged, and the second branch connect compressor air inlet of solenoid valve two and evaporator two is arranged；Condensing units defrosting circuit include respectively with air duct connection: the condenser static pressure bellows I that condenser is set, the one static pressure bellows II of evaporator that evaporator one is set, the two static pressure bellows III of evaporator that evaporator two is set；When defrosting, the air after condenser heat exchange enters evaporator static pressure case by air duct and defrosts with the heat exchange of evaporator fin pipe, and the air after defrosting returns to condenser by air duct and exchanges heat.This system defrosts with recovering condensing heat, removes defrosting system compared to other, energy saving.
Description
Technical field
The utility model relates to a kind of freezer defrosting fields, and in particular to a kind of to be defrosted in the way of recovering condensing heat
System.
Background technique
Evaporator fin surface temperature is lower than air dew point temperature, fin surface moisture condensation；When fin surface temperature is lower than 0 DEG C
When, fin surface will frosting.Frost is the porous type bulk materials being made of ice crystal, and thermal resistance apparent thickness difference is approximately steel pipe
90~450 times.With the progress of process of refrigerastion, frost thickness and thermal conduction resistance are gradually increased, to reduce the biography of evaporator
Hot coefficient increases resistance of the air by finned-tube evaporator, reduces air mass flow, seriously affects the heat exchange effect of heat exchanger
Fruit.Refrigerating plant is widely used in the every field of national economy, and the subfreezing refrigerating plant of evaporating temperature occupies wherein
Sizable ratio, such as freezer refrigerating plant, low-temperature air conditioner refrigerating plant, freezing plant, the evaporator table of these devices
Face all can frosting, therefore will timely and effectively defrosting.In cold storage refrigerating system, frequently with Defrost method be hot gas defrosting,
Electric defrosting, hot water defrosting.Hot gas defrosting is that the high-temperature gas of compressor discharge enters evaporator progress defrosting, and electric defrosting is to utilize
Electric heater carries out heating defrosting to evaporator coil, and hot water defrosting is heat water-spraying to be carried out on evaporator coil defrosting.
Hot gas defrosting is most energy-efficient in numerous methods.But there is also three problems for this mode, first is that into compressor air suction mouth
Easily contain liquid in refrigerant, makes compressor liquid hammer.Second is that pressure of inspiration(Pi) improves, reduce compressor pressure ratios, compressor is inhaled
The specific volume of gas side refrigerant increases, and refrigeration cycle amount increases, and increases the revolution electric current of compressor and noise.Third is that device is opposite
Complexity manages also more troublesome.Therefore more reasonable defrosting mode and control means to be found.
Utility model content
The utility model is directed to the deficiency of cold storage refrigerating system tradition Defrost mode, proposes that a kind of utilization recycling condenser changes
The system that heat defrosts.
A kind of condensation heat recovery removes defrosting system, and the system is defrosted loop sets by refrigeration cycle and condensing units
At；The refrigeration cycle includes: compressor 1, condenser 2, throttle valve 3, one 4a of solenoid valve, one 5a of evaporator, solenoid valve
Two 4b, two 5b of evaporator, compressor 1, condenser 2, throttle valve 3 are sequentially connected, and throttle valve is separately connected first by pipeline
The first branch connect compressor air inlet of solenoid valve one and evaporator one is arranged in road and second branch, and two He of solenoid valve is arranged
The second branch connect compressor air inlet of evaporator two；Condensing units defrosting circuit include respectively with 6 connection of air duct
: the condenser static pressure bellows I that condenser is set, the one static pressure bellows II of evaporator that evaporator one is set, setting evaporator two
Two static pressure bellows III of evaporator；The condenser static pressure bellows I are provided with air air inlet air-valve 7, air outlet air-valve
8, air intlet air-valve 9, recovering condensing heat air outlet slit air-valve 10 after defrosting；The one static pressure bellows II of evaporator and evaporator
Two static pressure bellows III have identical structure, are respectively arranged with: air-supply air-valve 11, return air air-valve 12, recovering condensing heat air intlet
Air outlet slit air-valve 14 after air-valve 13, defrosting；When defrosting, the air after condenser heat exchange enters evaporator static pressure by air duct
Case defrosts with the heat exchange of evaporator fin pipe, and the air after defrosting returns to condenser by air duct and exchanges heat.
A kind of condensation heat recovery removes defrosting system, at least contains two sets of subsystems, every set subsystem includes electromagnetism
Valve and evaporator.In defrosting, using alternately defrosting, an evaporator defrosts, other evaporators freeze.
A kind of condensation heat recovery removes defrosting system, the air duct, condenser static pressure bellows, evaporator static pressure bellows
All wrap up insulating layer.
A kind of condensation heat recovery removes defrosting system, when the evaporator needs to defrost, the evaporator power-off
Closing, solenoid valve power-off, which are closed, stops feed flow, the evaporator blowing air-valve and evaporator return air air-valve closing, time
Air outlet slit air-valve is opened after receiving condensation hot-air inlets air-valve and the defrosting, and the condenser air air inlet air-valve closes
Close, air outlet air-valve close, defrosting after air intlet air-valve open, recovering condensing heat air outlet slit air-valve open, cold
Air after condenser heat exchange enters evaporator static pressure bellows by air duct, carries out heat exchange defrosting with evaporator fin pipe, then will remove
Air after frost, which returns to condenser by air duct, to be continued to exchange heat.
This has following technical effect that except defrosting system
1. this system defrosts with recovering condensing heat, defrosting system is removed compared to other, it is energy saving.
2. the air themperature after defrosting is lower, returns to condenser and condensed, can be improved the condensation effect of condenser, it is excellent
Change system.
3. this system is changed less in the Defrost mode of use in original system, system structure is simple, easy to accomplish
It automatically controls.
Detailed description of the invention
Fig. 1 is a kind of condensation heat recovery defrosting system principle schematic diagram；
Fig. 2 is evaporator static pressure bellows schematic diagram；
Fig. 3 is condenser static pressure bellows schematic diagram.
Specific embodiment
System is described in further detail below in conjunction with the drawings and specific embodiments.It should be appreciated that described herein
Specific embodiment is only used to explain this system, is not used to limit this system.
As shown in Figure 1, Figure 2, Figure 3 shows, the system is made of refrigeration cycle and condensing units defrosting circuit；It is described
Refrigeration cycle includes: compressor 1, condenser 2, throttle valve 3, one 4a of solenoid valve, one 5a of evaporator, two 4b of solenoid valve, steams
Two 5b of device is sent out, compressor 1, condenser 2, throttle valve 3 are sequentially connected, and throttle valve is separately connected the first branch and second by pipeline
The first branch connect compressor air inlet of solenoid valve one and evaporator one is arranged in branch, and solenoid valve two and evaporator two is arranged
Second branch connect compressor air inlet；Condensing units defrosting circuit include respectively with 6 connection of air duct: setting is cold
The condenser static pressure bellows I of condenser, the one static pressure bellows II of evaporator that evaporator one is set, the evaporator two that evaporator two is set
Static pressure bellows III；The condenser static pressure bellows I are provided with sky after air air inlet air-valve 7, air outlet air-valve 8, defrosting
Gas import air-valve 9, recovering condensing heat air outlet slit air-valve 10；The one static pressure bellows II of evaporator and two static pressure bellows of evaporator
III has identical structure, is respectively arranged with: air-supply air-valve 11, return air air-valve 12, recovering condensing heat air intlet air-valve 13, defrosting
Air outlet slit air-valve 14 afterwards；When defrosting, the air after condenser heat exchange enters evaporator static pressure case and evaporator by air duct
Finned tube heat exchange defrosts, and the air after defrosting returns to condenser by air duct and exchanges heat.Each dashed box represents quiet as shown in figure 1
Bellows portion is pressed, detail drawing is represented in Fig. 2, Fig. 3.
A kind of condensation heat recovery removes defrosting system, at least contains two sets of subsystems, every set subsystem includes electromagnetism
Valve and evaporator.In defrosting, using alternately defrosting, an evaporator defrosts, other evaporators freeze.
A kind of condensation heat recovery removes defrosting system, the air duct, condenser static pressure bellows, evaporator static pressure bellows
All wrap up insulating layer.
A kind of condensation heat recovery removes defrosting system, when the evaporator needs to defrost, the evaporator power-off
Closing, solenoid valve power-off, which are closed, stops feed flow, the evaporator blowing air-valve and evaporator return air air-valve closing, time
Air outlet slit air-valve is opened after receiving condensation hot-air inlets air-valve and the defrosting, and the condenser air air inlet air-valve closes
It closes, air outlet air-valve is closed, air intlet air-valve is opened after defrosting, recovering condensing heat air outlet slit air-valve is opened.It is followed
Ring is that the air after condenser heat exchange enters evaporator static pressure bellows by air duct, carries out heat exchange with evaporator fin pipe and removes
Frost, then the air after defrosting is returned into condenser by air duct and continues to exchange heat, during defrosting, an evaporator defrosts
The operating of other evaporators is not influenced, and since condensation temperature reduces, other evaporator refrigeration performances are optimized, so melting
It is small to library temperature influence of fluctuations when white.
The above is only the preferred embodiment of the utility model, it is noted that for the general of the art
For logical technical staff, under the premise of not departing from this system principle, several improvements and modifications can also be made, these improve and
Retouching also should be regarded as the protection scope of this patent.
Claims (3)
1. a kind of condensation heat recovery removes defrosting system, it is characterised in that: the system is by refrigeration cycle and condensing units
Defrost circuit composition；The refrigeration cycle include: compressor (1), condenser (2), throttle valve (3), solenoid valve one (4a),
Evaporator one (5a), solenoid valve two (4b), evaporator two (5b), compressor (1), condenser (2), throttle valve (3) are sequentially connected,
Throttle valve is separately connected the first branch and second branch by pipeline, and setting solenoid valve one is connected with the first branch of evaporator one
The second branch connect compressor air inlet of solenoid valve two and evaporator two is arranged in compressor inlet；The condensing units
Defrosting circuit include respectively with air duct connection: be arranged condenser condenser static pressure bellows (I), be arranged evaporator one evaporation
One static pressure bellows (II) of device, the two static pressure bellows (III) of evaporator that evaporator two is set；Condenser static pressure bellows (I) setting
Have: air intlet air-valve (9), recovering condensing heat air go out after air air inlet air-valve (7), air outlet air-valve (8), defrosting
One's intention as revealed in what one says valve (10)；The one static pressure bellows (II) of evaporator and two static pressure bellows (III) of evaporator have identical structure, set respectively
It is equipped with: air outlet slit air-valve after air-supply air-valve (11), return air air-valve (12), recovering condensing heat air intlet air-valve (13), defrosting
(14)；When defrosting, air after condenser heat exchange by air duct enter evaporator static pressure case and evaporator fin pipe exchange heat into
Row defrosting, the air after defrosting return to condenser by air duct and exchange heat.
2. a kind of condensation heat recovery according to claim 1 removes defrosting system, which is characterized in that at least contain two sets of subsystems
System, every set subsystem includes solenoid valve and evaporator, and in defrosting, using alternately defrosting, an evaporator defrosts, other
Evaporator freezes.
3. a kind of condensation heat recovery according to claim 1 removes defrosting system, which is characterized in that the air duct, condenser
Static pressure bellows, one static pressure bellows of evaporator, two static pressure bellows of evaporator all wrap up insulating layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820918043.1U CN208704224U (en) | 2018-06-14 | 2018-06-14 | A kind of condensation heat recovery removes defrosting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820918043.1U CN208704224U (en) | 2018-06-14 | 2018-06-14 | A kind of condensation heat recovery removes defrosting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208704224U true CN208704224U (en) | 2019-04-05 |
Family
ID=65936319
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820918043.1U Expired - Fee Related CN208704224U (en) | 2018-06-14 | 2018-06-14 | A kind of condensation heat recovery removes defrosting system |
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| CN (1) | CN208704224U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116592529A (en) * | 2023-07-12 | 2023-08-15 | 兰州理工大学 | Refrigerating unit |
-
2018
- 2018-06-14 CN CN201820918043.1U patent/CN208704224U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116592529A (en) * | 2023-07-12 | 2023-08-15 | 兰州理工大学 | Refrigerating unit |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190405 Termination date: 20200614 |