CN204987532U - Frequency conversion incubator - Google Patents
Frequency conversion incubator Download PDFInfo
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- CN204987532U CN204987532U CN201520460787.XU CN201520460787U CN204987532U CN 204987532 U CN204987532 U CN 204987532U CN 201520460787 U CN201520460787 U CN 201520460787U CN 204987532 U CN204987532 U CN 204987532U
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Abstract
The utility model discloses a frequency conversion incubator, including gas thermal release ware, the first compressor, second compressor, first condenser and second condenser, gas thermal release ware, the first compressor and first condenser pass through the pipeline series connection and form high temperature circulation circuit, gas thermal release ware, second compressor and second condenser pass through the pipeline series connection and form low temperature circulation circuit, the first compressor and second compressor are the frequency conversion compressor that changes the freezing volume of refrigeration system through the frequency that changes the converter. Through setting for the value that corresponds between rated temperature and the frequency in the converter, the frequency of the change mediation converter through the temperature is again by the rotational speed of converter change compressor, when the more freezing volume of the higher needs of temperature was cooled down, the increase of the first compressor rotational speed when the temperature is lower, can reduce freezing volume in right amount, and second compressor rotational speed reduces to play energy -conserving effect.
Description
Technical field
The utility model belongs to the technical field of high-low-temperature environmental testing case, is specifically related to a kind of frequency conversion incubator.
Background technology
High-low-temperature environmental testing equipment is usually used in carrying out environmental adaptability development test to material product, general high-low-temperature environmental testing equipment controls high-low-temperature environmental testing equipment test temperature by arranging heater, this temperature is made to be tending towards design temperature, when high-low-temperature environmental testing equipment semen donors be greater than actual demand cause test temperature lower than design temperature time, test temperature is made to reach design temperature by the heating of heater, adopt in this way, equipment energy consumption is caused to increase a lot, the cost increased, does not meet this aim of energy-saving and emission-reduction that country proposes yet.
So, be " CN103499156A " at Chinese invention application number, name is called " high-low-temperature environmental testing refrigeration system, high-low-temperature environmental testing case, control method " patent document in disclose a kind of high-low-temperature environmental testing refrigeration system and comprise low-temperature level compressor, evaporimeter, control valve, condenser/evaporator, high-temperature level compressor, condenser, the controller of control and regulation threshold switch state, cryogenic compressor, evaporimeter, control valve, condenser/evaporator is connected in series formation low-temperature circuit by pipeline, high temperature compressor, condenser, condenser/evaporator is connected in series formation high-temperature circuit by pipeline, low-temperature circuit and high-temperature circuit are in parallel.The cold that high-low-temperature environmental testing refrigeration system produces is fully utilized, and can not cause the waste of energy, reduce energy consumption, save the energy.
But it is mainly controlled automatically by controller and control valve, its height of controlling cost, and automaticity is not high, institute does not still use in a large number in this way in actual production process.
Utility model content
For the weak point existed in above-mentioned technology, the utility model provides a kind of easy control and the good frequency conversion incubator of energy-saving effect.
In order to achieve the above object, a kind of frequency conversion incubator of the utility model, comprises gas heat separator, the first compressor, the second compressor, the first condenser and the second condenser; Described gas heat separator, the first compressor and the first condenser are connected in series by pipeline and form high temperature circulation loop, described gas heat separator, the second compressor and the second condenser form cryogenic circulation loop by pipeline series connection, and described first compressor and the second compressor are the frequency by changing frequency converter and change the frequency-changeable compressor of refrigeration system refrigerating capacity.
Wherein, described first compressor comprises temperature detector, compressor and high temperature frequency converter, temperature detector detects the Temperature of Working flowing to the first compressor circuit after evaporation, and Temperature of Working information is sent in temperature frequency converter, temperature frequency converter according to the tachometer value of the Relation acquisition compressor between desired temperature and frequency, and controls compressor and under this rotating speed, improves refrigerating capacity lower the temperature.
Wherein, described second compressor comprises temperature detector, compressor and low temperature frequency converter, temperature detector detects the Temperature of Working flowing to the second compressor circuit after evaporation, and Temperature of Working information is sent in temperature frequency converter, temperature frequency converter according to the tachometer value of the Relation acquisition compressor between desired temperature and frequency, and controls compressor and under this rotating speed, reduces refrigerating capacity lower the temperature.
Wherein, this frequency conversion incubator also comprises an evaporimeter, and described evaporimeter is arranged between gas heat separator and the second compressor, and in gas heat separator, condensed working medium enters sweat cooling in evaporimeter, and the working medium after evaporation becomes gaseous state and gets back in the second compressor.
Wherein, this frequency conversion incubator also comprises the first hot gas bypass valve and the second hot gas bypass valve, and described first hot gas bypass valve is connected in parallel on the two ends of the first compressor, and described second hot gas bypass valve is connected in parallel on the two ends of the second compressor.
Wherein, described first condenser and the second condenser are condenser coil, also comprise filter between the gentle heat separator of described first condenser, enter in condenser be condensed into liquid working medium by filter, then just enter in gas heat separator and be evaporated to cryogenic fluid.
The beneficial effects of the utility model are:
Compared with prior art, the utility model uses by being mated with compressor by frequency converter, by setting the respective value between rated temperature and frequency in frequency converter, being reconciled the frequency of frequency converter, then changed the rotating speed of compressor by frequency converter by the change of temperature; When the more refrigerating capacity of the higher needs of temperature is lowered the temperature, the first compressor rotary speed increases, and when temperature is lower, can reduce refrigerating capacity in right amount, and the second compressor rotary speed reduces, thus plays energy-saving effect.The utility model is based on the frequency shift technology of frequency converter thus the refrigerating capacity changed in refrigeration system, and structure is simple, be easy to realize, and is applicable to the technical field being widely used in high-low temperature test chamber.
Accompanying drawing explanation
Fig. 1 is the simplified basic schematic diagram of frequency conversion incubator;
Fig. 2 is the principle schematic of frequency conversion incubator band evaporimeter;
Fig. 3 is the principle schematic of frequency conversion incubator band hot gas bypass valve.
Main element symbol description is as follows:
10, gas heat separator 11, first compressor
12, the second compressor 13, first condenser
14, the second condenser 15, evaporimeter
16, the first hot gas bypass valve 17, second hot gas bypass valve
Detailed description of the invention
In order to more clearly state the utility model, below in conjunction with accompanying drawing, the utility model is further described.
Refer to Fig. 1, a kind of frequency conversion incubator of the utility model, comprises gas heat separator 10, first compressor 11, second compressor 12, first condenser 13 and the second condenser 14; Gas heat separator 10, first compressor 11 and the first condenser 13 are connected in series by pipeline and form high temperature circulation loop, gas heat separator 10, second compressor 12 and the second condenser 14 form cryogenic circulation loop by pipeline series connection, and the first compressor 11 and the second compressor 12 are the frequency by changing frequency converter and change the frequency-changeable compressor of refrigeration system refrigerating capacity.
Compared to prior art, the utility model uses by being mated with compressor by frequency converter, by setting the respective value between rated temperature and frequency in frequency converter, being reconciled the frequency of frequency converter, then changed the rotating speed of compressor by frequency converter by the change of temperature; When the more refrigerating capacity of the higher needs of temperature is lowered the temperature, the first compressor 11 rotating speed increases, and when temperature is lower, can reduce refrigerating capacity in right amount, and the second compressor 12 rotating speed reduces, thus plays energy-saving effect.The utility model is based on the frequency shift technology of frequency converter thus the refrigerating capacity changed in refrigeration system, and structure is simple, be easy to realize, and is applicable to the technical field being widely used in high-low temperature test chamber.
In the present embodiment, first compressor 11 comprises temperature detector, compressor and high temperature frequency converter, temperature detector detects the Temperature of Working flowing to the first compressor 11 pipeline after evaporation, and Temperature of Working information is sent in temperature frequency converter, temperature frequency converter according to the tachometer value of the Relation acquisition compressor between desired temperature and frequency, and controls compressor and under this rotating speed, improves refrigerating capacity lower the temperature.Second compressor 12 comprises temperature detector, compressor and low temperature frequency converter, temperature detector detects the Temperature of Working flowing to the second compressor 12 pipeline after evaporation, and Temperature of Working information is sent in temperature frequency converter, temperature frequency converter according to the tachometer value of the Relation acquisition compressor between desired temperature and frequency, and controls compressor and under this rotating speed, reduces refrigerating capacity lower the temperature.Temperature detector carries out Real-Time Monitoring to the Temperature of Working entering compressor and transmission frequency changes information in real time, thus makes the power of compressor be tending towards optimum state at any time, can play better energy-saving effect.
Consult Fig. 2 further, in the present embodiment, this frequency conversion incubator also comprises an evaporimeter 15, evaporimeter 15 is arranged between gas heat separator 10 and the second compressor 12, in gas heat separator 10, condensed working medium enters sweat cooling in evaporimeter 15, and the working medium after evaporation becomes gaseous state and gets back in the second compressor 12.
Consult Fig. 3 further, in the present embodiment, this frequency conversion incubator also comprises the two ends that the first hot gas bypass valve 16 and the second hot gas bypass valve 17, first hot gas bypass valve 16 are connected in parallel on the first compressor 11, and the second hot gas bypass valve 17 is connected in parallel on the two ends of the second compressor 12.After the existence of the first hot gas bypass valve 16 is used for preventing the first compressor 11 air-breathing, temperature is too high, plays a protective role to the first compressor 11; After the existence of the second hot gas bypass valve 17 is used for preventing the second compressor 12 air-breathing, temperature is too high, plays a protective role to high stage compressor.
In the present embodiment, first condenser 13 and the second condenser 14 are condenser coil, also comprise filter between the gentle heat separator 10 of first condenser 13, enter in condenser be condensed into liquid working medium by filter, then just enter in gas heat separator 10 and be evaporated to cryogenic fluid.
Advantage of the present utility model is:
1, the utility model is based on the frequency shift technology of frequency converter thus the refrigerating capacity changed in refrigeration system, and structure is simple, be easy to realize, and is applicable to the technical field being widely used in high-low temperature test chamber.
2, temperature detector carries out Real-Time Monitoring to the Temperature of Working entering compressor and the information of transmission frequency change in real time, thus makes the power of compressor be tending towards optimum state at any time, can play better energy-saving effect.
3, after the existence of the first hot gas bypass valve 16 is used for preventing the first compressor 11 air-breathing, temperature is too high, plays a protective role to the first compressor 11; After the existence of the second hot gas bypass valve 17 is used for preventing the second compressor 12 air-breathing, temperature is too high, plays a protective role to high stage compressor.
Be only several specific embodiment of the present utility model above, but the utility model is not limited thereto, the changes that any person skilled in the art can think of all should fall into protection domain of the present utility model.
Claims (6)
1. a frequency conversion incubator, is characterized in that, comprises gas heat separator, the first compressor, the second compressor, the first condenser and the second condenser; Described gas heat separator, the first compressor and the first condenser are connected in series by pipeline and form high temperature circulation loop, described gas heat separator, the second compressor and the second condenser form cryogenic circulation loop by pipeline series connection, and described first compressor and the second compressor are the frequency by changing frequency converter and change the frequency-changeable compressor of refrigeration system refrigerating capacity.
2. frequency conversion incubator according to claim 1, it is characterized in that, described first compressor comprises temperature detector, compressor and high temperature frequency converter, temperature detector detects the Temperature of Working flowing to the first compressor circuit after evaporation, and Temperature of Working information is sent in temperature frequency converter, temperature frequency converter according to the tachometer value of the Relation acquisition compressor between desired temperature and frequency, and controls compressor and under this rotating speed, improves refrigerating capacity lower the temperature.
3. frequency conversion incubator according to claim 1, it is characterized in that, described second compressor comprises temperature detector, compressor and low temperature frequency converter, temperature detector detects the Temperature of Working flowing to the second compressor circuit after evaporation, and Temperature of Working information is sent in temperature frequency converter, temperature frequency converter according to the tachometer value of the Relation acquisition compressor between desired temperature and frequency, and controls compressor and under this rotating speed, reduces refrigerating capacity lower the temperature.
4. frequency conversion incubator according to claim 1, it is characterized in that, this frequency conversion incubator also comprises an evaporimeter, described evaporimeter is arranged between gas heat separator and the second compressor, in gas heat separator, condensed working medium enters sweat cooling in evaporimeter, and the working medium after evaporation becomes gaseous state and gets back in the second compressor.
5. frequency conversion incubator according to claim 1, it is characterized in that, described first condenser and the second condenser are condenser coil, also filter is comprised between the gentle heat separator of described first condenser, enter in condenser be condensed into liquid working medium by filter, then just enter in gas heat separator and be evaporated to cryogenic fluid.
6. frequency conversion incubator according to claim 1, it is characterized in that, this frequency conversion incubator also comprises the first hot gas bypass valve and the second hot gas bypass valve, and described first hot gas bypass valve is connected in parallel on the two ends of the first compressor, and described second hot gas bypass valve is connected in parallel on the two ends of the second compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520460787.XU CN204987532U (en) | 2015-06-29 | 2015-06-29 | Frequency conversion incubator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520460787.XU CN204987532U (en) | 2015-06-29 | 2015-06-29 | Frequency conversion incubator |
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| Publication Number | Publication Date |
|---|---|
| CN204987532U true CN204987532U (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520460787.XU Active CN204987532U (en) | 2015-06-29 | 2015-06-29 | Frequency conversion incubator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117167916A (en) * | 2023-10-12 | 2023-12-05 | 东莞市净诺环境科技股份有限公司 | Air conditioning system for thermostatic chamber and control method thereof |
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2015
- 2015-06-29 CN CN201520460787.XU patent/CN204987532U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117167916A (en) * | 2023-10-12 | 2023-12-05 | 东莞市净诺环境科技股份有限公司 | Air conditioning system for thermostatic chamber and control method thereof |
| CN117167916B (en) * | 2023-10-12 | 2024-04-26 | 东莞市净诺环境科技股份有限公司 | Air conditioning system for thermostatic chamber and control method thereof |
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| GR01 | Patent grant |