CN108955001A - Heat exchange system and air-cooled screw type unit - Google Patents
Heat exchange system and air-cooled screw type unit Download PDFInfo
- Publication number
- CN108955001A CN108955001A CN201811068837.4A CN201811068837A CN108955001A CN 108955001 A CN108955001 A CN 108955001A CN 201811068837 A CN201811068837 A CN 201811068837A CN 108955001 A CN108955001 A CN 108955001A
- Authority
- CN
- China
- Prior art keywords
- evaporator
- condenser
- exchange system
- heat
- bypass
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000003507 refrigerant Substances 0.000 claims abstract description 33
- 238000001816 cooling Methods 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 9
- 238000000926 separation method Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 2
- 238000001914 filtration Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 238000010257 thawing Methods 0.000 abstract description 4
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003472 neutralizing effect Effects 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/40—Fluid line arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2347/00—Details for preventing or removing deposits or corrosion
- F25B2347/02—Details of defrosting cycles
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a heat exchange system and an air-cooled screw type unit, wherein the heat exchange system comprises a condenser and an evaporator, and a pipeline between the condenser and the evaporator is provided with a first control part for enabling a refrigerant to flow from the condenser to the evaporator in a one-way manner; the condenser is connected to one end of the bypass pipeline, the evaporator is connected to the other end of the bypass pipeline, and a second control piece for controlling whether the refrigerant in the condenser flows into the evaporator or not is arranged on the bypass pipeline. When needs change the frost, the high temperature middling pressure refrigerant among the second control condenser flows in the evaporimeter, and the frost layer on the evaporimeter absorbs the heat of high temperature middling pressure refrigerant, and the formation is dissolved into water, accomplishes and changes the frost, through setting up first control and second control like this, still can not influence user experience when can carrying out the defrosting, can not produce mechanical wear moreover, improves system life.
Description
Technical field
The present invention relates to technical field of heat exchange, more particularly to a kind of heat-exchange system and air-cooling screw type unit.
Background technique
For air-cooling screw type unit, air cooling fin heat exchanger makees evaporator use when heating, due to air themperature
Low, fin meeting frosting, if defrosted not in time, frost layer, which can be attached to fin surface, influences heat exchange.Existing Defrost mode is to adopt
Made the inverse circulation of refrigerant by being switched four-way valve with four-way reversing valve, realize defrost.Such mode is due to switching four-way valve, four-way
Valve long-term action causes mechanical wear, forms component damage, influences unit durability.In addition, four-way valve commutation is that inverse refrigerant follows
Ring, i.e., after four-way valve commutates, evaporation side becomes condensation side (low-pressure side becomes high-pressure side), influences the comfortable experience of client: heating
When, hot water preparing in package, and after four-way valve commutation, package side becomes evaporation side (refrigeration), and water temperature reduces at this time, supply user
Heat will reduce, also will affect the comfortable experience of client.
Summary of the invention
What influence user comfortably experienced caused by being defrosted in the prior art using four-way reversing valve for solution asks
Topic, the present invention provide a kind of heat-exchange system and air-cooling screw type unit, also will not influence user while being able to carry out defrosting
Experience.
The technical solution of the present invention is as follows: a kind of heat-exchange system is provided, including condenser and evaporator, the condenser and steaming
Pipeline between hair device is equipped with the first control piece for making refrigerant carry out one-way flow from condenser to evaporator；It further include bypass
Pipeline, one end of the bypass line connect condenser, and the other end of the bypass line connects evaporator, and the bypass pipe
Whether the refrigerant that road is equipped in control condenser flows into the second control piece of evaporator.
First control piece is check valve.
Second control piece is solenoid valve.
The evaporator quantity is one.
The evaporator quantity be it is multiple, the pipeline between the condenser and evaporator is by main line and multiple branch pipelines
It constitutes, one end of the main line is connect with condenser, and each evaporator is connected by the other end of a branch pipeline and main line
It connects, first control piece is equipped in each branch pipeline；
The bypass line is made of bypass main line and multiple bypass branch pipelines, one end of the bypass main line and condenser
One end of connection, each bypass branch pipeline is connect with the other end of bypass main line, the other end connection of each bypass branch pipeline
One evaporator is equipped with the second control piece in each bypass branch pipeline.
The other end of the main line is connect by liquid separation packet with multiple bypass branch pipelines.
The condenser uses case tube heat exchanger, and one end of the bypass line is connected on the shell of case tube heat exchanger simultaneously
It is connected to the refrigerant channel inside case tube heat exchanger.
The heat-exchange system further includes compressor, gas-liquid separator and oil eliminator, and the gas-liquid separator passes through pipeline
It is connect respectively with evaporator and compressor, the oil eliminator is connect with condenser (4) and compressor respectively by pipeline.
The first ball valve, dry filter are successively arranged from the direction that condenser flows to evaporator along refrigerant on the main line
Device, the second ball valve and throttling component.
The present invention also provides a kind of air-cooling screw type units, including heat-exchange system described above.
The invention has the benefit that
When needing defrost, the second control piece controls pressure refrigerant in the high temperature in condenser and flows into evaporator, on evaporator
Frost layer absorbs the heat that refrigerant is pressed in high temperature, and neutralizing completes defrost at water.Due to the effect of the first control piece, so that condenser
The refrigerant in pipeline between evaporator can only flow into evaporator, due to the effect of the second control piece, when only needing defrost,
Just to press refrigerant to flow to evaporator in the high temperature in condenser, it can be to avoid when being not necessarily to defrost, in the high temperature in condenser
Pressure refrigerant flows to evaporator and influences condenser heating and evaporator refrigeration, and then the problem of influence user experience, logical in this way
The first control piece of setting and the second control piece are crossed, also will not influence user experience while being able to carry out defrosting, and will not
Mechanical wear is generated, lifetime of system is improved.
Detailed description of the invention
Fig. 1 is the structure chart of heat-exchange system in the embodiment of the present invention.
Specific embodiment
As shown in Figure 1, the heat-exchange system proposed in the embodiment of the present invention, which includes condenser 4 and evaporator 5, cold
Pipeline between condenser 4 and evaporator 5 is equipped with the first control for making refrigerant carry out one-way flow from condenser 4 to evaporator 5
Part 8.The heat-exchange system further includes bypass line, and one end of bypass line connects condenser 4, and the other end of bypass line, which connects, to be steamed
Device 5 is sent out, and bypass line is equipped with the second control piece 11, whether the refrigerant that the second control piece 11 is used to control in condenser 4 flows
Enter evaporator 5.
In the present embodiment, the first control piece 8 is check valve, and the second control piece 11 is solenoid valve.
When needing defrost, the second control piece 11 controls pressure refrigerant in the high temperature in condenser 4 and flows into evaporator 5 (i.e.
Solenoid valve, which is opened, flows into pressure refrigerant in high temperature in condenser 4 in evaporator 5), the frost layer on evaporator 5 absorbs presses in high temperature
The heat of refrigerant, neutralizing complete defrost at water.In the process, due to the pressure of the pressure refrigerant from the high temperature that condenser 4 comes out
Greater than refrigerant pressure in the pipeline between condenser 4 and evaporator 5, refrigerant in the pipeline between condenser 4 and evaporator 5 can be made
It flows backwards (i.e. refrigerant flows to condenser 4), to influence the heating of condenser 4, influences user experience, therefore pass through the first control of setting
Part 8, so that pressing refrigerant to can only flow into evaporator 5 in high temperature.The effect that the second control piece 11 is arranged is, is only needing defrost
When, just to press refrigerant to flow to evaporator 5 in the high temperature in condenser 4, it can be to avoid when being not necessarily to defrost, in condenser 4
It presses refrigerant to flow to evaporator 5 in high temperature and influences the heating of condenser 4 and the refrigeration of evaporator 5, and then influence asking for user experience
Topic.In this way by the first control piece of setting and the second control piece, user experience also will not influence while being able to carry out defrosting,
And mechanical wear will not be generated, improve lifetime of system.
5 quantity of evaporator be it is multiple, the pipeline between condenser 4 and evaporator 5 is by 7 structure of main line 6 and multiple branch pipelines
At one end of main line 6 is connect with condenser 4, and each evaporator 5 is connected by the other end of a branch pipeline 7 and main line 6
It connects, the first control piece 8 is equipped in each branch pipeline 7.The quantity of evaporator 5 is equal with the quantity of branch pipeline 7, the present embodiment
In, there are five evaporator 5, branch pipelines 7 to be similarly five for tool.
Bypass line is made of bypass main line 9 and multiple bypass branch pipelines 10, bypasses one end and the condenser of main line 9
One end of 9 connections, each bypass branch pipeline 10 is connect with the other end of bypass main line 9, each to bypass the another of branch pipeline 10
End connects an evaporator 5, is equipped with the second control piece 11 in each bypass branch pipeline 10.Frost thickness on different condensers
It is different, defrost is carried out to control evaporator 5 by the second control piece 11 in each bypass branch pipeline 10 in this way, it can be with
Realization has white defrost, the frostless effect that do not change.
In the present embodiment, condenser 4 use case tube heat exchanger, main line 9 be connected on the shell of case tube heat exchanger and with
Refrigerant channel connection inside case tube heat exchanger.Evaporator 5 uses air cooling fin heat exchanger.
The other end of main line 6 is connect by liquid separation packet 12 with multiple bypass branch pipelines.
The first ball valve 19, device for drying and filtering are successively arranged from the direction that condenser flows to evaporator along refrigerant on main line 6
20, the second ball valve 21 and throttling component 22, throttling component 22 can be electric expansion valve, or capillary.
Heat-exchange system further includes compressor 1, gas-liquid separator 2 and oil eliminator 3, and gas-liquid separator 2 is distinguished by pipeline
It is connect with evaporator 5 and compressor 1, oil eliminator 3 is connect with condenser 4 and compressor 1 respectively by pipeline.Heat-exchange system is also
Including oil return line, one end of oil return line connects oil eliminator 3, the other end connect compressor 1 of oil return line, oil return line
It is equipped with the first shut-off valve 13, filter 14, liquid-sighting glass 15, solenoid valve 16, capillary 17 and shut-off valve 18.
In addition, evaporator quantity may be one.
The present invention also provides a kind of air-cooling screw type units, including above-mentioned heat-exchange system.
Above specific embodiment is only to the design illustrated the present invention, and those skilled in the art are in this hair
Various deformation and variation can be made under bright design, these deformations and variation are included within protection scope of the present invention.
Claims (10)
1. a kind of heat-exchange system, including condenser (4) and evaporator (5), which is characterized in that the condenser (4) and evaporator
(5) pipeline between is equipped with the first control piece (8) for making refrigerant carry out one-way flow from condenser (4) to evaporator (5)；Also
Including bypass line, one end of the bypass line connects condenser (4), and the other end of the bypass line connects evaporator
(5), and the bypass line is equipped with and controls the second the control piece whether refrigerant in condenser (4) flows into evaporator (5)
(11).
2. heat-exchange system according to claim 1, which is characterized in that first control piece (8) is check valve.
3. heat-exchange system according to claim 1, which is characterized in that second control piece (11) is solenoid valve.
4. heat-exchange system according to any one of claim 1 to 3, which is characterized in that evaporator (5) quantity is one
It is a.
5. heat-exchange system according to any one of claim 1 to 3, it is characterised in that:
Evaporator (5) quantity be it is multiple, pipeline between the condenser (4) and evaporator (5) is by main line (6) and more
A branch pipeline (7) is constituted, and one end of the main line (6) is connect with condenser (4), and each evaporator (5) is in charge of by one
Road (7) is connect with the other end of main line (6), and first control piece (8) is equipped on each branch pipeline (7)；
The bypass line is made of bypass main line (9) and multiple bypass branch pipelines (10), and the one of bypass main line (9)
End is connect with condenser (4), and one end of each bypass branch pipeline (10) is connect with the other end of bypass main line (9), each side
The other end of reduction of fractions to a common denominator pipeline (10) connects an evaporator (5), is equipped with the second control piece on each bypass branch pipeline (10)
(11).
6. heat-exchange system according to claim 5, which is characterized in that the other end of the main line (6) passes through liquid separation packet
(12) it is connect with multiple bypass branch pipelines (7).
7. heat-exchange system according to claim 1, which is characterized in that the condenser (4) uses case tube heat exchanger, described
One end of bypass line is connected on the shell of case tube heat exchanger and is connected to the refrigerant channel inside case tube heat exchanger.
8. heat-exchange system according to claim 1, which is characterized in that the heat-exchange system further includes compressor (1), gas-liquid
Separator (2) and oil eliminator (3), the gas-liquid separator (2) are connected with evaporator (5) and compressor (1) respectively by pipeline
It connects, the oil eliminator (3) is connect with condenser (4) and compressor (1) respectively by pipeline.
9. heat-exchange system according to claim 5, which is characterized in that along refrigerant from condenser (4) on the main line (6)
The direction for flowing to evaporator (5) is successively arranged the first ball valve (19), device for drying and filtering (20), the second ball valve (21) and first device that throttles
Part (22).
10. a kind of air-cooling screw type unit, which is characterized in that including heat-exchange system described in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811068837.4A CN108955001A (en) | 2018-09-13 | 2018-09-13 | Heat exchange system and air-cooled screw type unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811068837.4A CN108955001A (en) | 2018-09-13 | 2018-09-13 | Heat exchange system and air-cooled screw type unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108955001A true CN108955001A (en) | 2018-12-07 |
Family
ID=64475405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811068837.4A Withdrawn CN108955001A (en) | 2018-09-13 | 2018-09-13 | Heat exchange system and air-cooled screw type unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108955001A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020021836A (en) * | 2000-09-18 | 2002-03-23 | 구자홍 | Defrosting system of Refrigerator |
| CN203413891U (en) * | 2013-07-18 | 2014-01-29 | 成都蓉阳科技有限公司 | Integral type air source bypass defrosting heat pump drying machine set |
| CN207688476U (en) * | 2017-06-15 | 2018-08-03 | 铜仁职业技术学院 | A kind of novel defrosting air-conditioning |
| CN208765330U (en) * | 2018-09-13 | 2019-04-19 | 珠海格力电器股份有限公司 | Heat exchange system and air-cooled screw type unit |
-
2018
- 2018-09-13 CN CN201811068837.4A patent/CN108955001A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020021836A (en) * | 2000-09-18 | 2002-03-23 | 구자홍 | Defrosting system of Refrigerator |
| CN203413891U (en) * | 2013-07-18 | 2014-01-29 | 成都蓉阳科技有限公司 | Integral type air source bypass defrosting heat pump drying machine set |
| CN207688476U (en) * | 2017-06-15 | 2018-08-03 | 铜仁职业技术学院 | A kind of novel defrosting air-conditioning |
| CN208765330U (en) * | 2018-09-13 | 2019-04-19 | 珠海格力电器股份有限公司 | Heat exchange system and air-cooled screw type unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181207 |