CN1869549B - Cooling machine device for constant temperature thermoelectric frequency conversion industry - Google Patents
Cooling machine device for constant temperature thermoelectric frequency conversion industry Download PDFInfo
- Publication number
- CN1869549B CN1869549B CN2005100759569A CN200510075956A CN1869549B CN 1869549 B CN1869549 B CN 1869549B CN 2005100759569 A CN2005100759569 A CN 2005100759569A CN 200510075956 A CN200510075956 A CN 200510075956A CN 1869549 B CN1869549 B CN 1869549B
- Authority
- CN
- China
- Prior art keywords
- temperature
- frequency
- constant temperature
- compressor
- cooling
- 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.)
- Active
Links
Images
Landscapes
- Control Of Ac Motors In General (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention relates to a constant-temperature and differential- temperature variable-frequency industrial cooler device, especially replacing the traditional constant-frequency compressor with a variable-frequency compressor and simultaneously cooperating with the output of a microcomputer to control voltage to make the variable- frequency compressor able to regulate the frequency (30Hz-120Hz) with the temperature difference, able to control the temperature of cooling fluid (in constant temperature mode) according to the user-set temperature value, or according to the room temperature plus the user- set temperature difference, thus achieving the purposes of improving accuracy, low noises, low electricity consumption and wide application range, and additionally, able to arrange a heater in a cooling fluid tank to make temperature compensation and avoid supercooling of the cooling fluid.
Description
Technical field
The present invention relates to a kind of constant temperature, step differential temp type frequency conversion industry cooling machine device, relate generally at the demanding industrial cooling machine device of cooling fluid temperature difference accuracy, utilize the modulated frequency characteristic of inverter compressor, when coolant temperature raises,, improve the frequency of inverter compressor promptly by microcomputer control voltage, increase the cooldown rate of coolant quantity, otherwise then reduce the frequency of inverter compressor, reduce the cooldown rate of coolant quantity, reach the function that has a narrow range of temperature with this.
Background technology
Traditional industrial cooling machine device, generally all will deciding frequently, the formula compressor is used for circulation conveying refrigerant.
But; the fixed frequency of formula compressor frequently is (60Hz) that fixes; the speed of coolant quantity of promptly circulating is fixed; when the temperature of cooling fluid raises rapidly; can't increase the cooldown rate of coolant quantity thus; reach the purpose of quick reduction temperature; and when the temperature of cooling fluid reduces; also can only reach the purpose that promotes coolant temperature, make the temperature difference of cooling fluid become big by stopping to decide the running of frequency formula compressor; so and be not suitable on the high industrial equipment of accuracy; and the often start and shutting down of fixed formula compressor frequently, not only power consumption but also cause the loss of compressor easily, existing needs the problem and the shortcoming that solve.
Summary of the invention
Therefore, the inventor provides a kind of constant temperature, step differential temp type frequency conversion industry cooling machine device at tradition frequently existing problem of formula compressor and shortcoming surely.
The employed compressor of cooling machine device of the present invention is an inverter compressor, utilize the temperature difference signal of microcomputer to change into Control of Voltage frequency conversion device, make the inverter compressor can be along with frequency by the Frequency Converter Control inverter compressor of the temperature difference of cooling fluid (30Hz～120Hz), when coolant temperature is higher than setting value, the frequency of this inverter compressor improves, and increases the cooldown rate of coolant quantity; Otherwise when coolant temperature was lower than setting value, the frequency of this inverter compressor reduced, and reduced the cooldown rate of coolant quantity, and it is constant with this coolant temperature to be kept, and reaches the purpose that promotes accuracy; Simultaneously, the noise of inverter compressor is little, power consumption is low, and applied widely.The noise of machine of contracting is little, power consumption is low, and applied widely.
In addition, can also in the cooling liquid bath, microcomputer different constant temperature temperature sensor and heater be set, when the temperature of cooling fluid reduces too soon, the heater heating will be responded to and notify to this microcomputer different constant temperature temperature sensor, effectively avoid cooling fluid to have little time because of unusual temperature decrease to heat up, influence its accuracy.
Description of drawings
Fig. 1 is a square allocation plan of the present invention.
Fig. 2 is a control circuit schematic diagram of the present invention.
Wherein, description of reference numerals is as follows:
10 refrigerant circulation circuit, 11 condensers
12 inverter compressor, 13 reservoirs
14 refrigerant forms, 15 plate-type evaporators
16 electric expansion valves, 17 driers
18 high-low pressure protectors
20 liquid circulation loops, 21 cooling liquid baths
22 pumps, 23 Pressure gauges
The 24 object 25Y type filters that are cooled
26 discharge switches, 27 water level switches
28 microcomputer different constant temperature temperature sensors, 29 heaters
The specific embodiment
For making the easier functional effect of understanding device context of the present invention in depth and can reach of those of ordinary skill in the art, now enumerate a specific embodiment, and conjunction with figs. is described in detail as follows:
A kind of constant temperature, step differential temp type frequency conversion industry cooling machine device see also shown in Figure 1: be square allocation plan of the present invention, with shown in Figure 2: be control circuit schematic diagram of the present invention.The refrigerant circulation circuit 10 of cooler comprises condenser 11 (containing radiator fan), inverter compressor 12, reservoir 13, refrigerant form 14, plate-type evaporator 15, electric expansion valve 16, drier 17, high-low pressure protector 18, and the liquid circulation loop 20 of this cooler comprises cooling liquid bath 21, pump 22, Pressure gauge 23, the object 24 that is cooled, y-type filter 25, discharge switch 26, water level switch 27; It is characterized in that: this compressor is an inverter compressor 12, its frequency modulation(PFM) scope is 30Hz～120Hz, cooperate the temperature difference signal of microcomputer to change into Control of Voltage frequency conversion device simultaneously, make the inverter compressor 12 can be along with the temperature difference of cooling fluid, frequency by Frequency Converter Control inverter compressor 12, be provided with microcomputer different constant temperature temperature sensor 28 and heater 29 in this cooling liquid bath 21 in addition, by the coolant temperature in these microcomputer different constant temperature temperature sensor 28 induction cooling liquid baths 21, cross when low when the temperature of cooling fluid, this microcomputer different constant temperature temperature sensor 28 will notify heater 29 heating.
By above-mentioned each process and step made the purpose of this invention is to provide a kind of constant temperature, step differential temp type frequency conversion industry cooling machine device, in practical application:
When the temperature of cooling fluid was higher than setting value, the frequency of this inverter compressor 12 improved, and increased the cooldown rate of refrigerant; Otherwise when the temperature of cooling fluid was lower than setting value, the frequency of this inverter compressor 12 reduced, and reduced the cooldown rate of refrigerant.
In sum, the invention provides a kind of constant temperature, step differential temp type frequency conversion industry cooling machine device, through inventor actual fabrication finish and the repeatable operation test after, confirm can reach really the desired functional effect of the present invention.
Claims (2)
1. a constant temperature, step differential temp type frequency conversion industry cooling machine device, the refrigerant circulation circuit of this cooler comprises condenser, compressor, reservoir, refrigerant form, plate-type evaporator, electric expansion valve, drier, the high-low pressure protector that contains radiator fan, and the liquid circulation loop of this cooler comprises cooling liquid bath, pump, Pressure gauge, the object that is cooled, y-type filter, discharge switch, water level switch; It is characterized in that: this compressor is an inverter compressor, cooperates the temperature difference signal of microcomputer to convert Control of Voltage frequency conversion device to simultaneously, makes the inverter compressor can be along with the temperature difference of cooling fluid, by the frequency of Frequency Converter Control inverter compressor; Be provided with microcomputer different constant temperature temperature sensor and heater in this cooling liquid bath, cross when low notice heater heat temperature raising by this microcomputer different constant temperature temperature sensor senses to the cooling fluid of cooling in the liquid bath.
2. constant temperature as claimed in claim 1, step differential temp type frequency conversion industry cooling machine device is characterized in that: the frequency modulation(PFM) scope of this inverter compressor is 30Hz～120Hz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005100759569A CN1869549B (en) | 2005-05-26 | 2005-05-26 | Cooling machine device for constant temperature thermoelectric frequency conversion industry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005100759569A CN1869549B (en) | 2005-05-26 | 2005-05-26 | Cooling machine device for constant temperature thermoelectric frequency conversion industry |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1869549A CN1869549A (en) | 2006-11-29 |
| CN1869549B true CN1869549B (en) | 2010-04-28 |
Family
ID=37443280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2005100759569A Active CN1869549B (en) | 2005-05-26 | 2005-05-26 | Cooling machine device for constant temperature thermoelectric frequency conversion industry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1869549B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8015833B2 (en) * | 2009-05-28 | 2011-09-13 | Ford Global Technologies, Llc | Automotive climate system and method of controlling same |
| EP2746700B1 (en) * | 2011-08-19 | 2017-05-03 | Mitsubishi Electric Corporation | Air conditioner |
| CN102436251B (en) * | 2011-11-30 | 2014-04-16 | 广州市光机电技术研究院 | Constant-temperature air bath device and method for detecting temperature controller thereof and testing aging of temperature controller |
| TWI618597B (en) * | 2014-04-15 | 2018-03-21 | Cooling system for machining fluid of machine tool and use method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1281128A (en) * | 1999-07-05 | 2001-01-24 | 清华同方股份有限公司 | Cold and heat accumulation type air conditioner with heat pump |
| WO2003060395A1 (en) * | 2002-01-16 | 2003-07-24 | Eurochiller S.R.L. | Continuous automatic control system of industrial processes' cooling fluid |
-
2005
- 2005-05-26 CN CN2005100759569A patent/CN1869549B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1281128A (en) * | 1999-07-05 | 2001-01-24 | 清华同方股份有限公司 | Cold and heat accumulation type air conditioner with heat pump |
| WO2003060395A1 (en) * | 2002-01-16 | 2003-07-24 | Eurochiller S.R.L. | Continuous automatic control system of industrial processes' cooling fluid |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1869549A (en) | 2006-11-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TW539834B (en) | Constant-temperature liquid circulating apparatus | |
| CN102597659B (en) | Air conditioner | |
| CN1869549B (en) | Cooling machine device for constant temperature thermoelectric frequency conversion industry | |
| CN104697260B (en) | Control method for frequency adjustment point of heat pump unit | |
| WO2011064840A1 (en) | Auxiliary heater control device and heated fluid using system and auxiliary heater control method | |
| CN105318460A (en) | Control system, control method and water chilling unit using control system and control method | |
| CN108224624A (en) | For the control method and device of cooling-water machine system | |
| CN103294086B (en) | Constant-temperature liquid circulating device and temperature-controlling method | |
| CN102364265A (en) | Variable flow circulation type heat pump water heater | |
| CN210463650U (en) | Precise temperature control system for circulating high-low temperature liquid of barrel pump | |
| JP6072670B2 (en) | Heat pump hot water supply / heating system | |
| EP3086053B1 (en) | Heat pump hot water supply device | |
| CN113606782B (en) | Variable frequency control method and device of heat pump unit, storage medium and heat pump unit | |
| CN206626846U (en) | Temperature control energy saving system and its charging pile | |
| CN206001732U (en) | It is capable of the liquid low-temperature receiver unit of precise control of temperature | |
| TWM467851U (en) | Constant-temperature industrial cooling device for low temperature environment | |
| CN205090526U (en) | Control system and use its cooling water set | |
| CN202171322U (en) | Energy-saving circulation-type heat pump water heater | |
| JPWO2012053184A1 (en) | Heat exchange system | |
| CN2795755Y (en) | Variable frequency regrigeration type constant temperature groove | |
| CN100359274C (en) | Constant temp. liquid circulating device | |
| CN110345653A (en) | A kind of laser chiller of multistage function of temperature control | |
| CN212777268U (en) | Variable-frequency air energy steam unit | |
| CN210522489U (en) | One-driving-two temperature control system of high-low temperature all-in-one machine | |
| JP2005345099A (en) | Heat pump hot-water supply device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |