CN109442808A - Heat exchanger - Google Patents
Heat exchanger Download PDFInfo
- Publication number
- CN109442808A CN109442808A CN201811366719.1A CN201811366719A CN109442808A CN 109442808 A CN109442808 A CN 109442808A CN 201811366719 A CN201811366719 A CN 201811366719A CN 109442808 A CN109442808 A CN 109442808A
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- cabinet body
- valve
- distribution pipe
- exchanger tube
- 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.)
- Pending
Links
- 238000010257 thawing Methods 0.000 abstract description 13
- 238000005057 refrigeration Methods 0.000 abstract description 7
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 description 9
- 101100408455 Arabidopsis thaliana PLC7 gene Proteins 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 6
- 239000003507 refrigerant Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000003245 coal Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000003643 water by type Substances 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
- F25B39/00—Evaporators; Condensers
-
- 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
- F25B47/006—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass for preventing frost
-
- 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
- F25B49/00—Arrangement or mounting of control or safety devices
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
The present invention relates to air source heat pump technical fields, and in particular to a kind of heat exchanger of air source heat pump.The heat exchanger includes heat exchanger cabinet body, described at least one heat exchanger tube of heat exchanger cabinet body, the first end of the heat exchanger tube connects header, and the second end of the heat exchanger tube is correspondingly connected with one end of distribution pipe, and the other end of the distribution pipe is connected respectively the distribution openings of distributor；Distribution pipe positioned at heat exchanger cabinet body bottom end is equipped with on-off valve.The heat exchanger can be by turning off the heat exchanger tube for being located at heat exchanger cabinet body bottom end to reduce defrosting number, reduce defrosting time and energy consumption.It also ensures that under frost-free operating condition and under refrigeration mode simultaneously, the normal use of heat exchanger, to guarantee that unit efficient stable is run.
Description
Technical field
The present invention relates to air source heat pump technical fields, and in particular to a kind of heat exchanger of air source heat pump.
Background technique
As atmospheric environment problem is increasingly serious in recent years, atmosphere administers the promotion of serial policy related to energy-saving and emission-reduction etc.
Under, " coal changes electricity " transformation of traditional scattered coal burning heating is carried out like a raging fire.Air source heat pump technology changes clearly as coal
One of the main force of the clean energy, has obtained significant progress in recent years, so that the energy consumption of air source heat pump in actual use obtains
Further attention has been arrived, the emphasis that the heating efficiency of air source heat pump is numerous researchers and producer's concern how is promoted.
It is found in prolonged research, the frosting of the heat exchanger of air source heat pump, defrosting problem are restrict its performance boost important
One of the difficult point that link and heat pump are promoted.
Be first heat pump heat exchanger there are the most easy frosting in the non-uniform problem of frosting, the especially bottom of heat exchanger, this
Mainly unevenly caused due to wind speed.Design for side air-out, exchanger base lean on proximal edge, and wind speed is relatively small.
For the design of upper outlet air, blower is arranged at top, and the face velocity of heat exchanger successively successively decreases from top to bottom, and bottom wind speed is most
It is small, it exchanges heat worst, surface temperature is minimum, is easiest to frosting.The easy Frosting performance of bottom will cause unit frequent switching defrosting mould
Formula, or cause bottom frosting excessive, when defrosting, are difficult to melt, and threaten unit operational safety.
Followed by exchanger base has that defrosting water is secondary and freezes.When unit defrosts, defrosting water is in gravity
Lower trickling downwards, is easy to stockpile in exchanger base.The aging of fin hydrophilic coating or surface contamination dust with heat exchanger
Dirt, the decaying of defrosting water drainage effect.Therefore when unit defrost terminates to be switched to heating mode, the defrosting water of exchanger base has
It may not drain thoroughly also, exchanger base surface temperature rapid decrease, these waters will gradually freeze at this time, be attached to heat exchange
Device surface, causes heat transfer effect to decline, and bottom branch returns liquid, and defrost increased periods, or even is formed and climb the freezing heat exchanger of ice phenomenon
Etc. a series of bad results.
Summary of the invention
In order to solve the deficiencies in the prior art, the present invention provides a kind of heat exchanger that can be avoided bottom frosting.
The heat exchanger can be by turning off the heat exchanger tube for being located at heat exchanger cabinet body bottom end to reduce defrosting number, reduce defrosting time
And energy consumption.It also ensures that under frost-free operating condition and under refrigeration mode simultaneously, the normal use of heat exchanger, to guarantee unit height
Imitate stable operation.
The technical solution provided according to the present invention, a kind of heat exchanger, the heat exchanger include heat exchanger cabinet body, the heat exchange
The first end of at least one heat exchanger tube of device cabinet body, the heat exchanger tube connects header, and the second end of the heat exchanger tube is correspondingly connected with
The other end of one end of distribution pipe, the distribution pipe is connected respectively the distribution openings of distributor；Positioned at the heat exchanger cabinet body
The distribution pipe of bottom end is equipped with on-off valve.
Further, the on-off valve is check valve, and the circulating direction of the check valve is from heat exchanger tube to distributor
Distribution openings direction.
It further, further include PLC and frosting detection device, the signal output end of frosting detection device connects PLC；It is described
On-off valve is solenoid valve, and the signal input part of the solenoid valve connects PLC.
Further, the on-off valve is hand-operated valve.
Further, the heat exchanger tube has multiple, and multiple heat exchanger tubes are successively laid from bottom to up in the heat exchanger cabinet body.
Further, the distribution pipe has multiple, and each distribution pipe is correspondingly connected with a heat exchanger tube；The distributor
Distribution openings have multiple, and each distribution openings are correspondingly connected with a distribution pipe.
From the above as can be seen that heat exchanger provided by the invention, has following advantages: described compared with prior art
Heat exchanger can be by turning off the heat exchanger tube for being located at heat exchanger cabinet body bottom end to reduce defrosting number, reduce defrosting time and energy
Consumption.It also ensures that under frost-free operating condition and under refrigeration mode simultaneously, the normal use of heat exchanger, to guarantee that unit is efficiently steady
Fixed operation.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is electrical schematic diagram of the invention.
1. heat exchanger cabinet body, 2. heat exchanger tubes, 3. headers, 4. distribution pipes, 5. distributors, 510. distribution openings,
520. total mouths, 6. on-off valves, 7. PLC, 8. frosting detection devices.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, and reference
Attached drawing, the present invention is described in more detail.Wherein identical components are presented with like reference characters.It needs to illustrate
It is that word "front", "rear" used in the following description, "left", "right", "up" and "down" refer to the direction in attached drawing.It uses
Word "inner" and "outside" refer respectively to the direction towards or away from geometric center of specific component.
A kind of heat exchanger, as depicted in figs. 1 and 2, comprising:
Heat exchanger cabinet body 1, the heat exchanger cabinet body 1 include the multiple heat exchange successively laid in heat exchanger cabinet body 1 from bottom to up
The heat exchanger tube 2 of pipe 2, the layout stracture can be improved heat transfer effect.The first end of all heat exchanger tubes 2 is all connected with an afflux
Pipe 3, the header 3 are equipped with refrigerant inlet and refrigerant outlet.
Distribution pipe 4, the distribution pipe 4 have multiple, and one end of each distribution pipe 4 is correspondingly connected with the of a heat exchanger tube 2
Two ends.
One end of distributor 5, the distributor 5 is equipped with multiple distribution openings 510, and each distribution openings 510 are correspondingly connected with one point
The other end of the other end of piping 4, distributor 5 is equipped with a total mouth 520.
Distribution pipe 4 positioned at 1 bottom end of heat exchanger cabinet body is equipped with on-off valve 6.
As the first of the invention embodiment, the on-off valve 6 is check valve, the circulating direction of the check valve be from
Heat exchanger tube 2 is reversed to end to 510 direction of distribution openings of distributor 5.The course of work of the invention are as follows: heat exchanger operation refrigeration mould
When formula, the flow direction of refrigerant be from header 3 to distributor 5, it is consistent with the circulating direction of check valve, therefore the check valve exists
Heat exchanger is in the open state in refrigeration mode, and all heat exchanger tubes 2 both participate in heat exchange.When heat exchanger runs heating mode,
The flow direction of refrigerant is from the distributor 5 to header 3, and check valve cut-off, the heat exchanger tube 2 equipped with check valve is not involved in hot friendship
It changes, therefore frost will not occur positioned at the heat exchanger tube of exchanger base 2 in heating mode.
It further include PLC7 and frosting detection device 8, the frosting detection device as second of embodiment of the invention
8 are set to 1 bottom end of heat exchanger cabinet body, for detecting whether heat exchanger tube 2 in the heat exchanger cabinet body 1 occurs frosting.Frosting detection dress
Set 8 signal output end connection PLC7；The on-off valve 6 is solenoid valve, and the signal input part of the solenoid valve connects PLC7.This
The course of work of kind embodiment are as follows: when under the heat exchanger is in refrigeration mode, under the control of the PLC7, the electricity
Magnet valve no power, keeps it turned on, and refrigerant flows to distributor 5 from header 3, and all heat exchanger tubes 2 in heat exchanger are just
Often work.It is described under the cooperation of the PLC7 and frosting detection device 8 when the heat exchanger is under heating mode
PLC7 controls the on-off of solenoid valve, not there is no frosting when the frosting detection device 8 detects 1 heat exchanger tube 2 of heat exchanger cabinet body
When situation, the PLC7 control solenoid valve is opened, the normally heat exchange work of heat exchanger tube 2 positioned at 1 bottom end of heat exchanger cabinet body, to protect
Hold unit efficient operation；If the PLC7 control solenoid valve closes when the frosting detection device 8 monitoring is there are when frosting situation
It closes, then the heat exchanger tube 2 in 1 bottom end of heat exchanger cabinet body is not involved in heat exchange work, so that its surface frost-free.
As the third embodiment of the invention, the on-off valve 6 is hand-operated valve.The hand-operated valve includes ball valve or cuts
Only valve.When starting for cold season, maintenance personnel opens the hand-operated valve, and unit runs refrigeration mode, all heat exchange of heat exchanger
Pipe 2 works normally.After the hot season, when temperature, which is reduced to exchanger base, icing frost occurs, maintenance personnel is closed
The hand-operated valve.Because the heat exchanger tube 2 for being located at 1 bottom end of heat exchanger cabinet body is turned off, it is not involved in heat exchange, surface frost-free freezes.
It should be understood by those ordinary skilled in the art that: the above is only a specific embodiment of the present invention, and
It is not used in the limitation present invention, all any modification, equivalent substitution, improvement and etc. within purport of the invention, done should all include
Within protection scope of the present invention.
Claims (6)
1. a kind of heat exchanger, which is characterized in that the heat exchanger includes heat exchanger cabinet body (1), is set in the heat exchanger cabinet body (1)
There is at least one heat exchanger tube (2), the first end of the heat exchanger tube (2) connects header (3), the second end of the heat exchanger tube (2)
It is correspondingly connected with one end of distribution pipe (4), the other end of the distribution pipe (4) is connected respectively the distribution openings of distributor (5)
(510)；Distribution pipe (4) positioned at heat exchanger cabinet body (1) bottom end is equipped with on-off valve (6).
2. heat exchanger as described in claim 1, which is characterized in that the on-off valve (6) is check valve, the stream of the check valve
Logical direction is distribution openings (510) direction from heat exchanger tube (2) to distributor (5).
3. heat exchanger as described in claim 1, which is characterized in that further include PLC(7)；The on-off valve (6) is solenoid valve,
The signal input part of the solenoid valve connects PLC(7).
4. heat exchanger as described in claim 1, which is characterized in that the on-off valve (6) is hand-operated valve.
5. heat exchanger as described in claim 1, which is characterized in that the heat exchanger tube (2) has multiple, and multiple heat exchanger tubes (2) exist
The heat exchanger cabinet body (1) is successively laid from bottom to up.
6. heat exchanger as claimed in claim 5, which is characterized in that the distribution pipe (4) have it is multiple, each distribution pipe (4) with
One heat exchanger tube (2) is correspondingly connected with；The distribution openings (510) of the distributor (5) have it is multiple, each distribution openings (510) with one
Distribution pipe (4) is correspondingly connected with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811366719.1A CN109442808A (en) | 2018-11-16 | 2018-11-16 | Heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811366719.1A CN109442808A (en) | 2018-11-16 | 2018-11-16 | Heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109442808A true CN109442808A (en) | 2019-03-08 |
Family
ID=65553072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811366719.1A Pending CN109442808A (en) | 2018-11-16 | 2018-11-16 | Heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109442808A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113587530A (en) * | 2021-08-12 | 2021-11-02 | 澳蓝（福建）实业有限公司 | Defrosting method for indirect evaporation heat exchange core of data center |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200952917Y (en) * | 2006-08-31 | 2007-09-26 | 浙江盾安人工环境设备股份有限公司 | Finned heat exchanger |
| JP2011202875A (en) * | 2010-03-25 | 2011-10-13 | Hitachi Appliances Inc | Air conditioner |
| CN104748466A (en) * | 2013-12-31 | 2015-07-01 | 周海瑞 | Air source heat pump defrosting system |
| CN108369072A (en) * | 2015-12-17 | 2018-08-03 | 三菱电机株式会社 | Heat exchanger and refrigerating circulatory device |
| CN209197215U (en) * | 2018-11-16 | 2019-08-02 | 无锡同方人工环境有限公司 | Heat exchanger |
-
2018
- 2018-11-16 CN CN201811366719.1A patent/CN109442808A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200952917Y (en) * | 2006-08-31 | 2007-09-26 | 浙江盾安人工环境设备股份有限公司 | Finned heat exchanger |
| JP2011202875A (en) * | 2010-03-25 | 2011-10-13 | Hitachi Appliances Inc | Air conditioner |
| CN104748466A (en) * | 2013-12-31 | 2015-07-01 | 周海瑞 | Air source heat pump defrosting system |
| CN108369072A (en) * | 2015-12-17 | 2018-08-03 | 三菱电机株式会社 | Heat exchanger and refrigerating circulatory device |
| CN209197215U (en) * | 2018-11-16 | 2019-08-02 | 无锡同方人工环境有限公司 | Heat exchanger |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113587530A (en) * | 2021-08-12 | 2021-11-02 | 澳蓝（福建）实业有限公司 | Defrosting method for indirect evaporation heat exchange core of data center |
| CN113587530B (en) * | 2021-08-12 | 2023-04-14 | 澳蓝（福建）实业有限公司 | Defrosting method for indirect evaporation heat exchange core body of data center |
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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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190308 |
|
| RJ01 | Rejection of invention patent application after publication |