CN207763284U - A kind of Gas-supplying enthalpy-increasing type energy-saving low-temperature refrigerator - Google Patents
A kind of Gas-supplying enthalpy-increasing type energy-saving low-temperature refrigerator Download PDFInfo
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- CN207763284U CN207763284U CN201721817119.3U CN201721817119U CN207763284U CN 207763284 U CN207763284 U CN 207763284U CN 201721817119 U CN201721817119 U CN 201721817119U CN 207763284 U CN207763284 U CN 207763284U
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- condenser
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- supplying enthalpy
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Abstract
The utility model discloses a kind of Gas-supplying enthalpy-increasing type energy-saving low-temperature refrigerators, including middle cryogenic refrigeration compressor, the input port of the middle cryogenic refrigeration compressor is connected with vapour liquid separator 4, its delivery outlet is connected with gs-oil separator, the gs-oil separator delivery outlet is connected with condenser, the condenser passes through condensation fan air draught or blowing, the refrigerant delivery outlet of the condenser is connected with liquid storage device, the liquid storage device includes the first output end and second output terminal, first output end is connected by the condensation side of condenser/evaporator with the liquid pipe valve of refrigerator, the second output terminal is connected by restricting element with the evaporation side of condenser/evaporator, the return-air confluence of the tracheae valve of steam and refrigerator that the condenser/evaporator generates enters in vapour liquid separator, it is strong with refrigerating capacity, equipment dependability is strong, the advantages of good energy-conserving effect.
Description
Technical field
The utility model belongs to refrigeration engineering device technique field, and in particular to cold for a kind of Gas-supplying enthalpy-increasing type energy-saving low-temperature
Cabinet.
Background technology
It is extensive in -40 DEG C ∽ -18 DEG C of low-temperature range application demands in field of low-temperature refrigeration, use such as quick-frozen food
Equipment（Seafood, meat, boiled dumpling etc.）, freezer, cryogenic freezing cabinet, low-temperature experimental device and special equipment, low-temperature vacuum drying set
Standby, automobile-used freezing（It hides）Equipment, logistics turnover freezing（It hides）In equipment, vaccine transport, fresh electric business cold chain distribution, fresh electric business
When turning station and convenience store's self-carry station, last these refrigeration equipments of 1 kilometer of cold chain distribution, when being spent less than -18 using temperature, generally deposit
In the situation of refrigerating capacity deficiency, it is embodied in temperature fall time length or temperature is difficult to decrease.Especially quick freezing unit is needed -30
Under DEG C ∽ -35 DEG C of working environments, it is desirable that fast cooling, refrigeration requirement are more stringent.
Conventional cryogenic freezes freezer structure as shown in Figure 1, including liquid storage device 15, gas-liquid separator 16, refrigerant compression
Machine 17, condenser 18 and condensation fan 19 have the following problems in the operation of Conventional cryogenic refrigeration refrigerator and in：（1）System
Cold capability problems；Single stage compress refrigeration is determined using cycle fluid characteristic, when evaporating temperature is less than -30 DEG C or less, compressor
It shows, pressure tends to 0kg/cm2, pressure of inspiration(Pi) bottom gettering ability wretched insufficiency, so leading to cold rapid decay；（2）It can
By sex chromosome mosaicism；The reduction of pressure of inspiration(Pi) causes the pressure ratio of compressor to increase, and pressure ratio can influence compressor just when being more than 10 or more
Changshou is ordered and efficiency；（3）- 40 DEG C or more refrigeration modes mostly use single stage compress refrigeration, such as use Two-stage Compression or superposition type pressure
Contraction is cold, and high expensive reduces application range.
Utility model content
The utility model aim is to overcome deficiency in the prior art, and it is cold to provide a kind of Gas-supplying enthalpy-increasing type energy-saving low-temperature
Cabinet.
The utility model is achieved through the following technical solutions：A kind of Gas-supplying enthalpy-increasing type energy-saving low-temperature refrigerator, including in
The input port of cryogenic refrigeration compressor, the middle cryogenic refrigeration compressor is connected with vapour liquid separator 4, delivery outlet and oil gas point
It is connected from device, the gs-oil separator delivery outlet is connected with condenser, and the condenser passes through condensation fan air draught or blowing, institute
The refrigerant delivery outlet for stating condenser is connected with liquid storage device, and the liquid storage device includes the first output end and second output terminal, and described the
One output end is connected by the condensation side of condenser/evaporator with the liquid pipe valve of refrigerator, the second output terminal by restricting element with
The evaporation side of condenser/evaporator is connected, and the return-air confluence of the tracheae valve of steam and refrigerator that the condenser/evaporator generates enters
In vapour liquid separator.
Preferably, the middle cryogenic refrigeration compressor uses reciprocating compressor, rolling rotor compressor or vortex
The one of which of compressor, among the above cryogenic refrigeration compressor can be used horizontal or vertical.
Preferably, the condenser/evaporator uses plate heat exchanger, double pipe heat exchanger, pipe type heat exchanger or microchannel
The one of which of heat exchanger.
Preferably, the condenser uses tube-fin condenser, cocurrent flow type condenser, serpentine condenser or microchannel
The one of which of formula condenser.
Preferably, the condensation fan is using the one of which for covering electromechanical machine, inner rotor motor or external rotor electric machine.
Preferably, the restricting element uses the one of which of capillary, electric expansion valve or heating power expansion valve.
Preferably, solenoid valve is installed between the restricting element and liquid storage device.
Preferably, the gs-oil separator uses centrifugal structure.
The beneficial effects of the utility model are：The Gas-supplying enthalpy-increasing type energy-saving low-temperature refrigerator of the utility model has refrigeration energy
The advantages of power is strong, and equipment dependability is strong, good energy-conserving effect.High temperature is discharged in middle cryogenic compressor, the gas of high pressure is introduced into oil gas
Separator enters back into condenser cooling condensation, and condensation fan is simultaneously to surrounding air heat release；Condensed liquid enters liquid storage device,
Reservoir outlet divides two-way, all the way the condensation side of condensed evaporator, the final liquid pipe valve for connecting refrigerator, liquid storage device another way warp
Restricting element is crossed, into condenser/evaporator, after further evaporation endothermic cooling, vapour-liquid is out incorporated to by condenser/evaporator evaporation side
Before separator, with evaporator return-air together to compressor input port.The liquid refrigerant come out from condenser/evaporator further cools down
Supercooling, part boil-off gas return to suction port of compressor, increase return-air amount and pressure, and while so that refrigerating capacity is increased, compression is when
The reduction of delivery temperature is more conducive to the reliability service of equipment.
Description of the drawings
Fig. 1 is the structural schematic diagram of Conventional cryogenic refrigeration refrigerator.
Fig. 2 is the fundamental diagram of the utility model Gas-supplying enthalpy-increasing type energy-saving low-temperature refrigerator.
Fig. 3 is the structural schematic diagram of the utility model Gas-supplying enthalpy-increasing type energy-saving low-temperature refrigerator.
Reference sign：Cryogenic refrigeration compressor in 1-, 2- condensers, 3- condensation fans, 4- vapour liquid separators, 5- storages
Liquid device, 6- condenser/evaporators, 7- restricting elements, 8- liquid pipe valves, 9- tracheae valves, 10- gs-oil separators, 11- evaporators, 15- storages
Liquid device, 16- vapour liquid separators, cryogenic refrigeration compressor in 17-, 18- condensers, 19- condensation fans.
Specific implementation mode
For a further understanding of the utility model, the utility model is carried out with reference to the accompanying drawings and embodiments further detailed
It describes in detail bright.It is understood that specific embodiment described herein is used only to explain the utility model, it is not used to limit
The utility model.
In the description of the present invention, it should be understood that term "upper", "lower", "front", "rear", "inner", "outside"
The orientation or positional relationship of equal instructions is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing this practicality newly
Type and simplified description, do not indicate or imply the indicated device or element must have a particular orientation, with specific orientation
Construction and operation, therefore should not be understood as limiting the present invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, are integrally connected, can also be detachably to connect
It connects；It can be the connection inside two elements；It can be directly connected, it can also indirectly connected through an intermediary, for this
For the those of ordinary skill in field, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
Embodiment 1
As shown in Figures 2 and 3, a kind of Gas-supplying enthalpy-increasing type energy-saving low-temperature refrigerator of the present embodiment, including middle cryogenic refrigeration compression
The input port of machine 1, the middle cryogenic refrigeration compressor 1 is connected with vapour liquid separator 4, delivery outlet and 10 phase of gs-oil separator
Even, 10 delivery outlet of the gs-oil separator is connected with condenser 2, and the condenser 2 passes through 3 air draught of condensation fan or blowing, institute
The refrigerant delivery outlet for stating condenser 2 is connected with liquid storage device 5, and the liquid storage device 5 includes the first output end and second output terminal, described
First output end is connected by the condensation side of condenser/evaporator 6 with the liquid pipe valve 8 of refrigerator, and the second output terminal passes through the member that throttles
Part 7 is connected with the evaporation side of condenser/evaporator 6, and the return-air of the tracheae valve 9 of steam and refrigerator that the condenser/evaporator 6 generates converges
It flows into vapour liquid separator 4.
The middle cryogenic refrigeration compressor 1 uses reciprocating compressor, rolling rotor compressor or scroll compressor
One of which, among the above cryogenic refrigeration compressor can be used horizontal or vertical.
The condenser/evaporator 6 uses plate heat exchanger, double pipe heat exchanger, pipe type heat exchanger or micro-channel heat exchanger
One of which.
The condenser 2 uses tube-fin condenser, cocurrent flow type condenser, serpentine condenser or micropassage type condensation
The one of which of device.
The condensation fan 3 is using the one of which for covering electromechanical machine, inner rotor motor or external rotor electric machine.
The restricting element 7 uses the one of which of capillary, electric expansion valve or heating power expansion valve.
Solenoid valve is installed between the restricting element 7 and liquid storage device 5.
The gs-oil separator 10 uses centrifugal structure.
The operation principle of the present embodiment is：High temperature is discharged in middle cryogenic refrigeration compressor 1, the gas of high pressure is introduced into oil gas point
From device 10, entering the cooling condensation of condenser 2, condensation fan 3 is simultaneously to surrounding air heat release；Condensed liquid enters liquid storage device
5, the outlet of liquid storage device 5 divides two-way, all the way the condensation side of condensed evaporator 6, the final liquid pipe valve 8 for connecting refrigerator, and liquid storage device 5 is another
Pass through restricting element 7 all the way, into condenser/evaporator 6, after further evaporation endothermic cooling, is gone out by 6 evaporation side of condenser/evaporator
Before being incorporated to vapour liquid separator 4, with 11 return-air of evaporator together to middle 1 input port of cryogenic refrigeration compressor.From condenser/evaporator 6
Liquid refrigerant out further cools down supercooling, and part boil-off gas returns to 1 entrance of compressor, increases return-air amount and pressure, makes
While refrigerating capacity increases, the reduction for compressing when delivery temperature is more conducive to the reliability service of equipment.
1 theory analysis of pressure-enthalpy chart is passed through with R404 refrigerants position example using Conventional cryogenic refrigeration refrigerator.- 18 DEG C of evaporating temperature
When, refrigerant pressure 2.2kg/cm2, at this time when 30 DEG C of environment temperature, the pressure at expulsion 18kg/cm of compressor2, pressure ratio 5.9.Evaporation
When -35 DEG C of temperature, refrigerant pressure 0.6kg/cm2, at this time when 30 DEG C of environment temperature, the pressure at expulsion 18kg/cm of compressor2, pressure ratio
11.8.So high compression ratio is very unfavorable to compressor operating, while actual motion is tested, and poor inspiration leads in figure at 5 points
It is offset to 5 ' to the right, ability declines.
It is managed by pressure-enthalpy chart 2 by taking R404 refrigerants as an example using a kind of Gas-supplying enthalpy-increasing type energy-saving low-temperature refrigerator of the utility model
By analysis.When -18 DEG C of evaporating temperature, refrigerant pressure 2.2kg/cm2, at this time when 30 DEG C of environment temperature, the pressure at expulsion of compressor
18kg/cm2, pressure ratio 5.9.When -35 DEG C of evaporating temperature, using air-supplying enthalpy-adding device, refrigerant pressure is by 0.6kg/cm2It rises to
1.1kg/cm2, at this time when 30 DEG C of environment temperature, the pressure at expulsion 18kg/cm of compressor2, pressure ratio 9.The increase of degree of supercooling makes at 5 points
Move on at 7 points, refrigerating capacity improves.The raising of inspiratory flow and pressure not only reduces compressor pressure ratio, while delivery temperature is by 3
Point moves on to 3 ' points, and delivery temperature declines.It is whole to reduce pressure ratio, delivery temperature, while the increase of degree of supercooling, improve refrigeration energy
Power.
Meanwhile compared with current Conventional cryogenic refrigeration refrigerator, a kind of this energy saving effect of Gas-supplying enthalpy-increasing type energy-saving low-temperature refrigerator
Benefit estimation：
Citing:- 18 DEG C of low temperature or less volume is 4m3, freezed using Conventional cryogenic refrigeration refrigerator, general power is：2000W.
Use a kind of Gas-supplying enthalpy-increasing type energy-saving low-temperature refrigerator general power 1800W.
1 Conventional cryogenic refrigeration refrigerator refrigeration electricity charge use/year（Member）=24 degree/day × 200 day × 0.52 yuan/degree=2080
Member；
A kind of 1 Gas-supplying enthalpy-increasing type energy-saving low-temperature refrigerator refrigeration electricity charge use/year（Member）=18 degree/day × 200 day × 0.52
Member/degree=1498 yuan；
A kind of 1 Gas-supplying enthalpy-increasing type energy-saving low-temperature refrigerator increases by 52 yuan/year than Conventional cryogenic refrigeration case equipment expense；
1 can save：2080-1498-52=530 yuan/year
1000 can power cost saving/year（Member）=1000 × 530=530,000 yuan；
10000 can power cost saving/year（Member）=10000 × 530=5,300,000 yuan；
100000 can power cost saving/year（Member）=100000 × 530=53,000,000 yuan；
Above-mentioned is to compare the energy saving economic benefit brought.The increase of refrigerating capacity and the raising of reliability simultaneously is conducive to -40 DEG C
∽ -18 DEG C of temperature ranges.
Then, and at present Conventional cryogenic refrigeration refrigerator compares, and sells a kind of 10,000 Gas-supplying enthalpy-increasing type energy-saving low-temperature refrigerators year
It can be with energy-efficient social benefit for 5,300,000 yuan/year.As it can be seen that a kind of section of Gas-supplying enthalpy-increasing type energy-saving low-temperature refrigerator of the utility model
Energy effect is very good.
For the ordinary skill in the art, specific embodiment has only carried out exemplary retouch to the utility model
It states, it is clear that the utility model specific implementation is not subject to the restrictions described above, as long as using the methodology of the utility model
The improvement of the various unsubstantialities carried out with technical solution, or it is not improved that the design of the utility model and technical solution is direct
Applied to other occasions, it both is within the protection scope of the present invention.
Claims (8)
1. a kind of Gas-supplying enthalpy-increasing type energy-saving low-temperature refrigerator, it is characterised in that：Including middle cryogenic refrigeration compressor, the middle low temperature system
The input port of cold compressor is connected with vapour liquid separator, and delivery outlet is connected with gs-oil separator, the gs-oil separator output
Mouth is connected with condenser, and the condenser passes through condensation fan air draught or blowing, the refrigerant delivery outlet and liquid storage of the condenser
Device is connected, and the liquid storage device includes the first output end and second output terminal, and first output end passes through the cold of condenser/evaporator
Solidifying side is connected with the liquid pipe valve of refrigerator, and the second output terminal is connected by restricting element with the evaporation side of condenser/evaporator, institute
The return-air confluence for stating the steam of condenser/evaporator generation and the tracheae valve of refrigerator enters in vapour liquid separator.
2. a kind of Gas-supplying enthalpy-increasing type energy-saving low-temperature refrigerator according to claim 1, it is characterised in that：The middle cryogenic refrigeration
Compressor uses the one of which of reciprocating compressor, rolling rotor compressor or scroll compressor, among the above low temperature system
Cold compressor can be used horizontal or vertical.
3. a kind of Gas-supplying enthalpy-increasing type energy-saving low-temperature refrigerator according to claim 1, it is characterised in that：The condenser/evaporator
Using plate heat exchanger, double pipe heat exchanger, the one of which of pipe type heat exchanger or micro-channel heat exchanger.
4. a kind of Gas-supplying enthalpy-increasing type energy-saving low-temperature refrigerator according to claim 1, it is characterised in that：The condenser uses
The one of which of tube-fin condenser, cocurrent flow type condenser, serpentine condenser or micropassage type condenser.
5. a kind of Gas-supplying enthalpy-increasing type energy-saving low-temperature refrigerator according to claim 1, it is characterised in that：The condensation fan is adopted
With the one of which of cover electromechanics machine, inner rotor motor or external rotor electric machine.
6. a kind of Gas-supplying enthalpy-increasing type energy-saving low-temperature refrigerator according to claim 1, it is characterised in that：The restricting element is adopted
With the one of which of capillary, electric expansion valve or heating power expansion valve.
7. a kind of Gas-supplying enthalpy-increasing type energy-saving low-temperature refrigerator according to claim 1, it is characterised in that：The restricting element with
Solenoid valve is installed between liquid storage device.
8. a kind of Gas-supplying enthalpy-increasing type energy-saving low-temperature refrigerator according to claim 1, it is characterised in that：The gs-oil separator
Using centrifugal structure.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721817119.3U CN207763284U (en) | 2017-12-22 | 2017-12-22 | A kind of Gas-supplying enthalpy-increasing type energy-saving low-temperature refrigerator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721817119.3U CN207763284U (en) | 2017-12-22 | 2017-12-22 | A kind of Gas-supplying enthalpy-increasing type energy-saving low-temperature refrigerator |
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| CN207763284U true CN207763284U (en) | 2018-08-24 |
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| CN201721817119.3U Expired - Fee Related CN207763284U (en) | 2017-12-22 | 2017-12-22 | A kind of Gas-supplying enthalpy-increasing type energy-saving low-temperature refrigerator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109654761A (en) * | 2019-01-31 | 2019-04-19 | 山东欧菲特能源科技有限公司 | A kind of ultralow temperature Frequency Conversion Variable Water Flow low temperature screw rod vortex unit, system and method |
-
2017
- 2017-12-22 CN CN201721817119.3U patent/CN207763284U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109654761A (en) * | 2019-01-31 | 2019-04-19 | 山东欧菲特能源科技有限公司 | A kind of ultralow temperature Frequency Conversion Variable Water Flow low temperature screw rod vortex unit, system and method |
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| 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: 20180824 Termination date: 20201222 |