CN1869549B - Constant temperature and differential temperature type frequency conversion industrial cooler device - Google Patents
Constant temperature and differential temperature type frequency conversion industrial cooler device Download PDFInfo
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- 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
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Abstract
本发明涉及一种定温、差温式变频工业用冷却机装置，特别涉及一种利用变频式压缩机取代传统的定频式压缩机，同时配合微计算机输出控制电压，使该变频式压缩机可以随着温差调整频率(30Hz～120Hz)，可依据使用者所设定的温度值来控制冷却液温度(定温式控制)，或依据室温值加上使用者所设定的温差，来控制冷却液的温度(差温式控制)，以此达到提高精确度、噪音小、耗电量低、适用范围广的目的，另外还可以在冷却液槽中设置加热器，做温度补偿，避免冷却液有过冷现象。
The present invention relates to a constant temperature and differential temperature variable frequency industrial cooling machine device, and in particular to a variable frequency compressor that replaces a traditional constant frequency compressor, and cooperates with a microcomputer to output a control voltage, so that the variable frequency compressor can adjust the frequency (30Hz to 120Hz) according to the temperature difference, and can control the coolant temperature according to the temperature value set by the user (constant temperature control), or control the coolant temperature according to the room temperature value plus the temperature difference set by the user (differential temperature control), so as to achieve the purpose of improving accuracy, low noise, low power consumption and wide application range. In addition, a heater can be set in the coolant tank for temperature compensation to avoid overcooling of the coolant.
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 | Constant temperature and differential temperature type frequency conversion industrial cooler device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005100759569A CN1869549B (en) | 2005-05-26 | 2005-05-26 | Constant temperature and differential temperature type frequency conversion industrial cooler device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1869549A CN1869549A (en) | 2006-11-29 |
| CN1869549B true CN1869549B (en) | 2010-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2005100759569A Expired - Fee Related CN1869549B (en) | 2005-05-26 | 2005-05-26 | Constant temperature and differential temperature type frequency conversion industrial cooler device |
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Families Citing this family (5)
| 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 |
| WO2013027233A1 (en) * | 2011-08-19 | 2013-02-28 | 三菱電機株式会社 | 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 | |
| CN115654680A (en) * | 2022-10-27 | 2023-01-31 | Tcl空调器(中山)有限公司 | Air conditioner control method, air conditioner, computer device and storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06101913A (en) | 1992-08-05 | 1994-04-12 | Hitachi Ltd | Air conditioner and control device storage box for air conditioner |
| CN1281128A (en) * | 1999-07-05 | 2001-01-24 | 清华同方股份有限公司 | A cold-storage heat-storage heat pump air conditioner |
| 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 not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06101913A (en) | 1992-08-05 | 1994-04-12 | Hitachi Ltd | Air conditioner and control device storage box for air conditioner |
| CN1281128A (en) * | 1999-07-05 | 2001-01-24 | 清华同方股份有限公司 | A cold-storage heat-storage heat pump air conditioner |
| WO2003060395A1 (en) * | 2002-01-16 | 2003-07-24 | Eurochiller S.R.L. | Continuous automatic control system of industrial processes' cooling fluid |
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| CN1869549A (en) | 2006-11-29 |
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Granted publication date: 20100428 |