CN109000392A - A kind of frequency converter cooling means of air conditioner cold water unit, air conditioner cold water unit and air-conditioning - Google Patents
A kind of frequency converter cooling means of air conditioner cold water unit, air conditioner cold water unit and air-conditioning Download PDFInfo
- Publication number
- CN109000392A CN109000392A CN201810982883.9A CN201810982883A CN109000392A CN 109000392 A CN109000392 A CN 109000392A CN 201810982883 A CN201810982883 A CN 201810982883A CN 109000392 A CN109000392 A CN 109000392A
- Authority
- CN
- China
- Prior art keywords
- frequency converter
- air conditioner
- conditioner cold
- cold water
- water
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 92
- 238000001816 cooling Methods 0.000 title claims abstract description 28
- 238000004378 air conditioning Methods 0.000 title claims abstract description 9
- 239000007788 liquid Substances 0.000 claims abstract description 29
- 239000003507 refrigerant Substances 0.000 claims description 20
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 4
- 230000005494 condensation Effects 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000002826 coolant Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 238000004781 supercooling 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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
The invention discloses a kind of frequency converter cooling means of air conditioner cold water unit, air conditioner cold water unit and air-conditionings, it exchanges heat the described method includes: the condenser in the air conditioner cold water unit is first gone out liquid with chilled water, then so that the condenser after heat exchange is gone out liquid stream and frequency converter is cooled down through frequency converter.The frequency converter cooling means of air conditioner cold water unit of the invention has the advantages that good cooling results and efficiency is high.
Description
Technical field
The present invention relates to field of air conditioning more particularly to a kind of frequency converter cooling means of air conditioner cold water unit, air conditioner cold water
Unit and air-conditioning.
Background technique
Converter technique is widely used to all kinds of electromechanical equipments, and marine air conditioner water cooler is by totally enclosed type scroll compression
The composition such as machine, plate-type evaporator, condenser, throttle structure, electric control box, frequency converter, and it is integrated with refrigerant water pump, using change
Frequency compressor remains high energy efficiency ratio within the scope of full working scope, and energy saving is superior.
To save space, frequency converter is integrated in electric control box, while to meet environmental condition peculiar to vessel and electromagnetic compatibility
Problem, frequency converter are placed in closed aluminium case, the cooling of frequency converter be its can efficient operation key factor, common technology
Means are using refrigerant cooling, and current way has following two.
A kind of prior art is cooling using refrigerant refrigerant before throttling, and as shown in Fig. 1, is condensed out liquid directly through frequency converter
Refrigerating module takes away the heat of frequency converter, this technical solution is primarily present following two disadvantage: one, working as hot weather, cooling water
When temperature is higher, liquid temperature is condensed out up to 40 DEG C, at this moment frequency converter cooling effect is poor, and there are the wind of frequency converter running overload
Danger；Two, heat exchange to be condensed out the raising of liquid temperature, and degree of supercooling reduces, and efficiency reduces.Another prior art such as attached drawing
Shown in 2, using the heat for flowing through frequency converter refrigerating module after the throttling of liquid bypass and taking away frequency converter is condensed out, it is then return to board-like steaming
Send out device, this technology is primarily present following two disadvantage: one, refrigerant temperature is low after throttling, and will lead to frequency converter condensation；Two, it saves
Refrigerant is at gas-liquid two-phase after stream, and gas phase, which returns to plate heat exchanger and can occupy effective heat exchange area, causes refrigerating capacity to decline, efficiency
It reduces.
Summary of the invention
The purpose of the present invention is the frequency converter cooling effect difference for above-mentioned air conditioner cold water unit of the existing technology and
The low defect of efficiency provides the frequency converter cooling means and air-conditioning cold of a kind of good cooling results and the high air conditioner cold water unit of efficiency
Water dispenser group.
In the embodiment of the present invention, a kind of frequency converter cooling means of air conditioner cold water unit is provided comprising: it first will be described
Condenser in air conditioner cold water unit goes out liquid and exchanges heat with chilled water, then the condenser after heat exchange is made to go out liquid stream through frequency converter pair
Frequency converter is cooled down.
In the embodiment of the present invention, the heat exchange that the condenser goes out between liquid and the chilled water is realized using subcooler.
In the embodiment of the present invention, the chilled water by the water outlet of the refrigerant water pump in the air conditioner cold water unit and
It increases a water supply pipe between water inlet newly and is introduced into the subcooler.
In the embodiment of the present invention, solenoid valve is set on the chilled water water supply pipe of the subcooler, and according to the change
The target temperature control solenoid valve of frequency device opens or closes.
In the embodiment of the present invention, a kind of air conditioner cold water unit comprising compressor, evaporator, condenser, throttle valve, change
Frequency device, refrigerant water pump and subcooler, the condenser of the condenser go out liquid and provide in the subcooler with the refrigerant water pump
Chilled water heat exchange after, flow through the frequency converter and the frequency converter cooled down.
In the embodiment of the present invention, the chilled water between the water outlet and water inlet of the refrigerant water pump by increasing one newly
Water supply pipe is introduced into the subcooler.
In the embodiment of the present invention, it is provided with solenoid valve on the chilled water water supply pipe of the subcooler, according to the change
The target temperature of frequency device controls the solenoid valve and opens or closes.
In the embodiment of the present invention, the subcooler include a closed cavity, across the cavity closing pipe line and
The pipeline being connected to the cavity, the condenser go out liquid and flow through from the closing pipe line, the chilled water from the chamber
It is flowed through in the pipeline of body connection.
In the embodiment of the present invention, a kind of air-conditioning is additionally provided, uses above-mentioned air conditioner cold water unit.
Compared with prior art, the frequency converter cooling means of air conditioner cold water unit of the invention, first by the condenser
Condenser go out liquid in subcooler and the refrigerant water pump provide chilled water heat exchange after, pass through the frequency converter to described
Frequency converter is cooled down, and can be reduced and is condensed out liquid temperature, to effectively take away the heat dissipation of frequency converter, can be prevented in high load capacity work
Directly using being condensed out liquid cooling but frequency converter heat dissipation effect deficiency problem under condition, and will not be too low because of frequency converter coolant temperature
Generate condensation problem.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of the frequency converter cooling system of the air conditioner cold water unit of prior art.
Fig. 2 is the schematic diagram of the frequency converter cooling system of the air conditioner cold water unit of another prior art.
Fig. 3 is the schematic diagram of the frequency converter cooling system of air conditioner cold water unit provided in an embodiment of the present invention.
Fig. 4, Fig. 5 are the structural schematic diagrams of subcooler provided in an embodiment of the present invention.
Specific embodiment
The present invention provides a kind of frequency converter cooling means of air conditioner cold water unit, first will be in the air conditioner cold water unit
Condenser goes out liquid and exchanges heat with chilled water, then so that the condenser after heat exchange is gone out liquid stream and cool down through frequency converter to frequency converter.
It is specifically described below.
As shown in figure 3, providing a kind of air conditioner cold water unit in the embodiment of the present invention comprising compressor, evaporator,
Condenser, throttle valve, frequency converter, refrigerant water pump and subcooler.The working principle of the air conditioner cold water unit is as follows:
Refrigerant absorbs the heat of cooled object in the evaporator and is vaporized into steam, and the compressor will constantly generate
Steam extracted out from the evaporator, and compressed, compressed high temperature, high steam are sent to cold after condenser
But go out liquid to be cooled to the condenser of high pressure, then enter the evaporator after throttle valve is depressured, vaporize again, absorb described cold
The heat of chilled water in matchmaker's water pump, so recycles again and again.The condenser of the condenser goes out liquid in the subcooler
In with the refrigerant water pump provide chilled water heat exchange after, flow through the frequency converter and the frequency converter cooled down.
In the embodiment of the present invention, the chilled water between the water outlet and water inlet of the refrigerant water pump by increasing one newly
Water supply pipe is introduced into the subcooler.Further, electromagnetism is provided on the chilled water water supply pipe of the subcooler
Valve is opened or closed by the control solenoid valve to control the flowing of the chilled water entered in the subcooler, to control
Make the target temperature of the frequency converter.
As shown in Figure 4, Figure 5, the subcooler includes a closed cavity 10, the closing pipe line 11 across the cavity
The pipeline 12 being connected to with the cavity, the condenser go out liquid and flow through from the closing pipe line 11, the chilled water from
It flows through in the pipeline 12 that the cavity 10 is connected to, is cooled down so that the chilled water goes out liquid to the condenser.Into one
Step ground, can also increase baffle plate in the cavity 10, to improve heat exchange coefficient according to the cooling effect of the subcooler.
Further, in the embodiment of the present invention, a kind of air-conditioning is additionally provided, uses above-mentioned air conditioner cold water unit.
In conclusion the frequency converter cooling means of air conditioner cold water unit of the invention, first by the condenser of the condenser
Out liquid in subcooler and the refrigerant water pump provide chilled water heat exchange after, pass through the frequency converter to the frequency converter into
Row cooling, can reduce and be condensed out liquid temperature, to effectively take away the heat dissipation of frequency converter, can prevent under high load capacity operating condition directly
Using being condensed out liquid cooling but frequency converter heat dissipation effect deficiency problem, and will not be because of the too low generation condensation of frequency converter coolant temperature
Problem.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (9)
1. a kind of frequency converter cooling means of air conditioner cold water unit characterized by comprising first will be in the air conditioner cold water unit
Condenser go out liquid and exchange heat with chilled water, then make the condenser after heat exchange go out liquid stream frequency converter is carried out through frequency converter it is cold
But.
2. the frequency converter cooling means of air conditioner cold water unit as described in claim 1, which is characterized in that using subcooler come real
The existing condenser goes out the heat exchange between liquid and the chilled water.
3. the frequency converter cooling means of air conditioner cold water unit as claimed in claim 2, which is characterized in that the chilled water passes through
A newly-increased water supply pipe is introduced into described between the water outlet and water inlet of the refrigerant water pump in the air conditioner cold water unit
Subcooler.
4. the frequency converter cooling means of air conditioner cold water unit as claimed in claim 3, which is characterized in that in the subcooler
Solenoid valve is set on chilled water water supply pipe, and solenoid valve is controlled according to the target temperature of the frequency converter and is opened or closed.
5. a kind of air conditioner cold water unit, which is characterized in that including compressor, evaporator, condenser, throttle valve, frequency converter, refrigerant
Water pump and subcooler, the condenser of the condenser go out the chilled water that liquid provides in the subcooler with the refrigerant water pump and change
After heat, flows through the frequency converter and the frequency converter is cooled down.
6. air conditioner cold water unit as claimed in claim 5, which is characterized in that the chilled water passes through in the refrigerant water pump
It increases a water supply pipe between water outlet and water inlet newly and is introduced into the subcooler.
7. air conditioner cold water unit as claimed in claim 6, which is characterized in that on the chilled water water supply pipe of the subcooler
It is provided with solenoid valve, the solenoid valve is controlled according to the target temperature of the frequency converter and is opened or closed.
8. air conditioner cold water unit as claimed in claim 5, which is characterized in that the subcooler include a closed cavity,
Closing pipe line across the cavity and the pipeline that is connected to the cavity, the condenser go out liquid and flow from the closing pipe line
It crosses, the chilled water is flowed through from the pipeline being connected to the cavity.
9. a kind of air-conditioning, which is characterized in that it is used such as the described in any item air conditioner cold water units of claim 4-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810982883.9A CN109000392A (en) | 2018-08-27 | 2018-08-27 | A kind of frequency converter cooling means of air conditioner cold water unit, air conditioner cold water unit and air-conditioning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810982883.9A CN109000392A (en) | 2018-08-27 | 2018-08-27 | A kind of frequency converter cooling means of air conditioner cold water unit, air conditioner cold water unit and air-conditioning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109000392A true CN109000392A (en) | 2018-12-14 |
Family
ID=64593527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810982883.9A Pending CN109000392A (en) | 2018-08-27 | 2018-08-27 | A kind of frequency converter cooling means of air conditioner cold water unit, air conditioner cold water unit and air-conditioning |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109000392A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109959182A (en) * | 2019-04-15 | 2019-07-02 | 广东美的制冷设备有限公司 | Refrigeration system and air conditioner |
| US11530855B2 (en) * | 2018-01-31 | 2022-12-20 | Qingdao Haier Air-Conditioning Electronic Co., Ltd. | Air conditioner heat dissipation structure control method and system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0933603A1 (en) * | 1998-01-30 | 1999-08-04 | RC Group S.p.A. | Cooling system having an inverter for controlling a compressor cooled by a fluid of the system and related process |
| CN107763757A (en) * | 2017-11-22 | 2018-03-06 | 珠海格力电器股份有限公司 | Cooling system |
| CN107940803A (en) * | 2017-11-21 | 2018-04-20 | 珠海格力电器股份有限公司 | Heat pump system and frequency converter cool-down method |
| CN208720598U (en) * | 2018-08-27 | 2019-04-09 | 珠海格力电器股份有限公司 | A kind of air conditioner cold water unit and air-conditioning |
-
2018
- 2018-08-27 CN CN201810982883.9A patent/CN109000392A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0933603A1 (en) * | 1998-01-30 | 1999-08-04 | RC Group S.p.A. | Cooling system having an inverter for controlling a compressor cooled by a fluid of the system and related process |
| CN107940803A (en) * | 2017-11-21 | 2018-04-20 | 珠海格力电器股份有限公司 | Heat pump system and frequency converter cool-down method |
| CN107763757A (en) * | 2017-11-22 | 2018-03-06 | 珠海格力电器股份有限公司 | Cooling system |
| CN208720598U (en) * | 2018-08-27 | 2019-04-09 | 珠海格力电器股份有限公司 | A kind of air conditioner cold water unit and air-conditioning |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11530855B2 (en) * | 2018-01-31 | 2022-12-20 | Qingdao Haier Air-Conditioning Electronic Co., Ltd. | Air conditioner heat dissipation structure control method and system |
| CN109959182A (en) * | 2019-04-15 | 2019-07-02 | 广东美的制冷设备有限公司 | Refrigeration system and air conditioner |
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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: 20181214 |
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| RJ01 | Rejection of invention patent application after publication |